diff options
66 files changed, 3923 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..a4bfced --- /dev/null +++ b/.gitignore @@ -0,0 +1,8 @@ +build*/ +compile_commands.json +.cache/ +.clangd/ +subprojects/c89atomic.wrap +subprojects/libalabaster +subprojects/libev-4.33/ +subprojects/packagecache/ @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +them if you wish), that you receive source code or can get it if you +want it, that you can change the software or use pieces of it in new +free programs, and that you know you can do these things. + + To protect your rights, we need to prevent others from denying you +these rights or asking you to surrender the rights. Therefore, you have +certain responsibilities if you distribute copies of the software, or if +you modify it: responsibilities to respect the freedom of others. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must pass on to the recipients the same +freedoms that you received. You must make sure that they, too, receive +or can get the source code. And you must show them these terms so they +know their rights. + + Developers that use the GNU GPL protect your rights with two steps: +(1) assert copyright on the software, and (2) offer you this License +giving you legal permission to copy, distribute and/or modify it. + + For the developers' and authors' protection, the GPL clearly explains +that there is no warranty for this free software. For both users' and +authors' sake, the GPL requires that modified versions be marked as +changed, so that their problems will not be attributed erroneously to +authors of previous versions. + + Some devices are designed to deny users access to install or run +modified versions of the software inside them, although the manufacturer +can do so. This is fundamentally incompatible with the aim of +protecting users' freedom to change the software. The systematic +pattern of such abuse occurs in the area of products for individuals to +use, which is precisely where it is most unacceptable. Therefore, we +have designed this version of the GPL to prohibit the practice for those +products. If such problems arise substantially in other domains, we +stand ready to extend this provision to those domains in future versions +of the GPL, as needed to protect the freedom of users. + + Finally, every program is threatened constantly by software patents. +States should not allow patents to restrict development and use of +software on general-purpose computers, but in those that do, we wish to +avoid the special danger that patents applied to a free program could +make it effectively proprietary. To prevent this, the GPL assures that +patents cannot be used to render the program non-free. + + The precise terms and conditions for copying, distribution and +modification follow. + + TERMS AND CONDITIONS + + 0. Definitions. + + "This License" refers to version 3 of the GNU General Public License. + + "Copyright" also means copyright-like laws that apply to other kinds of +works, such as semiconductor masks. + + "The Program" refers to any copyrightable work licensed under this +License. Each licensee is addressed as "you". "Licensees" and +"recipients" may be individuals or organizations. + + To "modify" a work means to copy from or adapt all or part of the work +in a fashion requiring copyright permission, other than the making of an +exact copy. The resulting work is called a "modified version" of the +earlier work or a work "based on" the earlier work. + + A "covered work" means either the unmodified Program or a work based +on the Program. + + To "propagate" a work means to do anything with it that, without +permission, would make you directly or secondarily liable for +infringement under applicable copyright law, except executing it on a +computer or modifying a private copy. Propagation includes copying, +distribution (with or without modification), making available to the +public, and in some countries other activities as well. + + To "convey" a work means any kind of propagation that enables other +parties to make or receive copies. Mere interaction with a user through +a computer network, with no transfer of a copy, is not conveying. + + An interactive user interface displays "Appropriate Legal Notices" +to the extent that it includes a convenient and prominently visible +feature that (1) displays an appropriate copyright notice, and (2) +tells the user that there is no warranty for the work (except to the +extent that warranties are provided), that licensees may convey the +work under this License, and how to view a copy of this License. If +the interface presents a list of user commands or options, such as a +menu, a prominent item in the list meets this criterion. + + 1. Source Code. + + The "source code" for a work means the preferred form of the work +for making modifications to it. "Object code" means any non-source +form of a work. + + A "Standard Interface" means an interface that either is an official +standard defined by a recognized standards body, or, in the case of +interfaces specified for a particular programming language, one that +is widely used among developers working in that language. + + The "System Libraries" of an executable work include anything, other +than the work as a whole, that (a) is included in the normal form of +packaging a Major Component, but which is not part of that Major +Component, and (b) serves only to enable use of the work with that +Major Component, or to implement a Standard Interface for which an +implementation is available to the public in source code form. A +"Major Component", in this context, means a major essential component +(kernel, window system, and so on) of the specific operating system +(if any) on which the executable work runs, or a compiler used to +produce the work, or an object code interpreter used to run it. + + The "Corresponding Source" for a work in object code form means all +the source code needed to generate, install, and (for an executable +work) run the object code and to modify the work, including scripts to +control those activities. However, it does not include the work's +System Libraries, or general-purpose tools or generally available free +programs which are used unmodified in performing those activities but +which are not part of the work. For example, Corresponding Source +includes interface definition files associated with source files for +the work, and the source code for shared libraries and dynamically +linked subprograms that the work is specifically designed to require, +such as by intimate data communication or control flow between those +subprograms and other parts of the work. + + The Corresponding Source need not include anything that users +can regenerate automatically from other parts of the Corresponding +Source. + + The Corresponding Source for a work in source code form is that +same work. + + 2. Basic Permissions. + + All rights granted under this License are granted for the term of +copyright on the Program, and are irrevocable provided the stated +conditions are met. This License explicitly affirms your unlimited +permission to run the unmodified Program. The output from running a +covered work is covered by this License only if the output, given its +content, constitutes a covered work. This License acknowledges your +rights of fair use or other equivalent, as provided by copyright law. + + You may make, run and propagate covered works that you do not +convey, without conditions so long as your license otherwise remains +in force. You may convey covered works to others for the sole purpose +of having them make modifications exclusively for you, or provide you +with facilities for running those works, provided that you comply with +the terms of this License in conveying all material for which you do +not control copyright. Those thus making or running the covered works +for you must do so exclusively on your behalf, under your direction +and control, on terms that prohibit them from making any copies of +your copyrighted material outside their relationship with you. + + Conveying under any other circumstances is permitted solely under +the conditions stated below. Sublicensing is not allowed; section 10 +makes it unnecessary. + + 3. Protecting Users' Legal Rights From Anti-Circumvention Law. + + No covered work shall be deemed part of an effective technological +measure under any applicable law fulfilling obligations under article +11 of the WIPO copyright treaty adopted on 20 December 1996, or +similar laws prohibiting or restricting circumvention of such +measures. + + When you convey a covered work, you waive any legal power to forbid +circumvention of technological measures to the extent such circumvention +is effected by exercising rights under this License with respect to +the covered work, and you disclaim any intention to limit operation or +modification of the work as a means of enforcing, against the work's +users, your or third parties' legal rights to forbid circumvention of +technological measures. + + 4. Conveying Verbatim Copies. + + You may convey verbatim copies of the Program's source code as you +receive it, in any medium, provided that you conspicuously and +appropriately publish on each copy an appropriate copyright notice; +keep intact all notices stating that this License and any +non-permissive terms added in accord with section 7 apply to the code; +keep intact all notices of the absence of any warranty; and give all +recipients a copy of this License along with the Program. + + You may charge any price or no price for each copy that you convey, +and you may offer support or warranty protection for a fee. + + 5. Conveying Modified Source Versions. + + You may convey a work based on the Program, or the modifications to +produce it from the Program, in the form of source code under the +terms of section 4, provided that you also meet all of these conditions: + + a) The work must carry prominent notices stating that you modified + it, and giving a relevant date. + + b) The work must carry prominent notices stating that it is + released under this License and any conditions added under section + 7. This requirement modifies the requirement in section 4 to + "keep intact all notices". + + c) You must license the entire work, as a whole, under this + License to anyone who comes into possession of a copy. This + License will therefore apply, along with any applicable section 7 + additional terms, to the whole of the work, and all its parts, + regardless of how they are packaged. This License gives no + permission to license the work in any other way, but it does not + invalidate such permission if you have separately received it. + + d) If the work has interactive user interfaces, each must display + Appropriate Legal Notices; however, if the Program has interactive + interfaces that do not display Appropriate Legal Notices, your + work need not make them do so. + + A compilation of a covered work with other separate and independent +works, which are not by their nature extensions of the covered work, +and which are not combined with it such as to form a larger program, +in or on a volume of a storage or distribution medium, is called an +"aggregate" if the compilation and its resulting copyright are not +used to limit the access or legal rights of the compilation's users +beyond what the individual works permit. Inclusion of a covered work +in an aggregate does not cause this License to apply to the other +parts of the aggregate. + + 6. Conveying Non-Source Forms. + + You may convey a covered work in object code form under the terms +of sections 4 and 5, provided that you also convey the +machine-readable Corresponding Source under the terms of this License, +in one of these ways: + + a) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by the + Corresponding Source fixed on a durable physical medium + customarily used for software interchange. + + b) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by a + written offer, valid for at least three years and valid for as + long as you offer spare parts or customer support for that product + model, to give anyone who possesses the object code either (1) a + copy of the Corresponding Source for all the software in the + product that is covered by this License, on a durable physical + medium customarily used for software interchange, for a price no + more than your reasonable cost of physically performing this + conveying of source, or (2) access to copy the + Corresponding Source from a network server at no charge. + + c) Convey individual copies of the object code with a copy of the + written offer to provide the Corresponding Source. This + alternative is allowed only occasionally and noncommercially, and + only if you received the object code with such an offer, in accord + with subsection 6b. + + d) Convey the object code by offering access from a designated + place (gratis or for a charge), and offer equivalent access to the + Corresponding Source in the same way through the same place at no + further charge. You need not require recipients to copy the + Corresponding Source along with the object code. If the place to + copy the object code is a network server, the Corresponding Source + may be on a different server (operated by you or a third party) + that supports equivalent copying facilities, provided you maintain + clear directions next to the object code saying where to find the + Corresponding Source. Regardless of what server hosts the + Corresponding Source, you remain obligated to ensure that it is + available for as long as needed to satisfy these requirements. + + e) Convey the object code using peer-to-peer transmission, provided + you inform other peers where the object code and Corresponding + Source of the work are being offered to the general public at no + charge under subsection 6d. + + A separable portion of the object code, whose source code is excluded +from the Corresponding Source as a System Library, need not be +included in conveying the object code work. + + A "User Product" is either (1) a "consumer product", which means any +tangible personal property which is normally used for personal, family, +or household purposes, or (2) anything designed or sold for incorporation +into a dwelling. In determining whether a product is a consumer product, +doubtful cases shall be resolved in favor of coverage. For a particular +product received by a particular user, "normally used" refers to a +typical or common use of that class of product, regardless of the status +of the particular user or of the way in which the particular user +actually uses, or expects or is expected to use, the product. A product +is a consumer product regardless of whether the product has substantial +commercial, industrial or non-consumer uses, unless such uses represent +the only significant mode of use of the product. + + "Installation Information" for a User Product means any methods, +procedures, authorization keys, or other information required to install +and execute modified versions of a covered work in that User Product from +a modified version of its Corresponding Source. The information must +suffice to ensure that the continued functioning of the modified object +code is in no case prevented or interfered with solely because +modification has been made. + + If you convey an object code work under this section in, or with, or +specifically for use in, a User Product, and the conveying occurs as +part of a transaction in which the right of possession and use of the +User Product is transferred to the recipient in perpetuity or for a +fixed term (regardless of how the transaction is characterized), the +Corresponding Source conveyed under this section must be accompanied +by the Installation Information. But this requirement does not apply +if neither you nor any third party retains the ability to install +modified object code on the User Product (for example, the work has +been installed in ROM). + + The requirement to provide Installation Information does not include a +requirement to continue to provide support service, warranty, or updates +for a work that has been modified or installed by the recipient, or for +the User Product in which it has been modified or installed. Access to a +network may be denied when the modification itself materially and +adversely affects the operation of the network or violates the rules and +protocols for communication across the network. + + Corresponding Source conveyed, and Installation Information provided, +in accord with this section must be in a format that is publicly +documented (and with an implementation available to the public in +source code form), and must require no special password or key for +unpacking, reading or copying. + + 7. Additional Terms. + + "Additional permissions" are terms that supplement the terms of this +License by making exceptions from one or more of its conditions. +Additional permissions that are applicable to the entire Program shall +be treated as though they were included in this License, to the extent +that they are valid under applicable law. If additional permissions +apply only to part of the Program, that part may be used separately +under those permissions, but the entire Program remains governed by +this License without regard to the additional permissions. + + When you convey a copy of a covered work, you may at your option +remove any additional permissions from that copy, or from any part of +it. (Additional permissions may be written to require their own +removal in certain cases when you modify the work.) You may place +additional permissions on material, added by you to a covered work, +for which you have or can give appropriate copyright permission. + + Notwithstanding any other provision of this License, for material you +add to a covered work, you may (if authorized by the copyright holders of +that material) supplement the terms of this License with terms: + + a) Disclaiming warranty or limiting liability differently from the + terms of sections 15 and 16 of this License; or + + b) Requiring preservation of specified reasonable legal notices or + author attributions in that material or in the Appropriate Legal + Notices displayed by works containing it; or + + c) Prohibiting misrepresentation of the origin of that material, or + requiring that modified versions of such material be marked in + reasonable ways as different from the original version; or + + d) Limiting the use for publicity purposes of names of licensors or + authors of the material; or + + e) Declining to grant rights under trademark law for use of some + trade names, trademarks, or service marks; or + + f) Requiring indemnification of licensors and authors of that + material by anyone who conveys the material (or modified versions of + it) with contractual assumptions of liability to the recipient, for + any liability that these contractual assumptions directly impose on + those licensors and authors. + + All other non-permissive additional terms are considered "further +restrictions" within the meaning of section 10. If the Program as you +received it, or any part of it, contains a notice stating that it is +governed by this License along with a term that is a further +restriction, you may remove that term. If a license document contains +a further restriction but permits relicensing or conveying under this +License, you may add to a covered work material governed by the terms +of that license document, provided that the further restriction does +not survive such relicensing or conveying. + + If you add terms to a covered work in accord with this section, you +must place, in the relevant source files, a statement of the +additional terms that apply to those files, or a notice indicating +where to find the applicable terms. + + Additional terms, permissive or non-permissive, may be stated in the +form of a separately written license, or stated as exceptions; +the above requirements apply either way. + + 8. Termination. + + You may not propagate or modify a covered work except as expressly +provided under this License. Any attempt otherwise to propagate or +modify it is void, and will automatically terminate your rights under +this License (including any patent licenses granted under the third +paragraph of section 11). + + However, if you cease all violation of this License, then your +license from a particular copyright holder is reinstated (a) +provisionally, unless and until the copyright holder explicitly and +finally terminates your license, and (b) permanently, if the copyright +holder fails to notify you of the violation by some reasonable means +prior to 60 days after the cessation. + + Moreover, your license from a particular copyright holder is +reinstated permanently if the copyright holder notifies you of the +violation by some reasonable means, this is the first time you have +received notice of violation of this License (for any work) from that +copyright holder, and you cure the violation prior to 30 days after +your receipt of the notice. + + Termination of your rights under this section does not terminate the +licenses of parties who have received copies or rights from you under +this License. If your rights have been terminated and not permanently +reinstated, you do not qualify to receive new licenses for the same +material under section 10. + + 9. Acceptance Not Required for Having Copies. + + You are not required to accept this License in order to receive or +run a copy of the Program. Ancillary propagation of a covered work +occurring solely as a consequence of using peer-to-peer transmission +to receive a copy likewise does not require acceptance. However, +nothing other than this License grants you permission to propagate or +modify any covered work. These actions infringe copyright if you do +not accept this License. Therefore, by modifying or propagating a +covered work, you indicate your acceptance of this License to do so. + + 10. Automatic Licensing of Downstream Recipients. + + Each time you convey a covered work, the recipient automatically +receives a license from the original licensors, to run, modify and +propagate that work, subject to this License. You are not responsible +for enforcing compliance by third parties with this License. + + An "entity transaction" is a transaction transferring control of an +organization, or substantially all assets of one, or subdividing an +organization, or merging organizations. If propagation of a covered +work results from an entity transaction, each party to that +transaction who receives a copy of the work also receives whatever +licenses to the work the party's predecessor in interest had or could +give under the previous paragraph, plus a right to possession of the +Corresponding Source of the work from the predecessor in interest, if +the predecessor has it or can get it with reasonable efforts. + + You may not impose any further restrictions on the exercise of the +rights granted or affirmed under this License. For example, you may +not impose a license fee, royalty, or other charge for exercise of +rights granted under this License, and you may not initiate litigation +(including a cross-claim or counterclaim in a lawsuit) alleging that +any patent claim is infringed by making, using, selling, offering for +sale, or importing the Program or any portion of it. + + 11. Patents. + + A "contributor" is a copyright holder who authorizes use under this +License of the Program or a work on which the Program is based. The +work thus licensed is called the contributor's "contributor version". + + A contributor's "essential patent claims" are all patent claims +owned or controlled by the contributor, whether already acquired or +hereafter acquired, that would be infringed by some manner, permitted +by this License, of making, using, or selling its contributor version, +but do not include claims that would be infringed only as a +consequence of further modification of the contributor version. For +purposes of this definition, "control" includes the right to grant +patent sublicenses in a manner consistent with the requirements of +this License. + + Each contributor grants you a non-exclusive, worldwide, royalty-free +patent license under the contributor's essential patent claims, to +make, use, sell, offer for sale, import and otherwise run, modify and +propagate the contents of its contributor version. + + In the following three paragraphs, a "patent license" is any express +agreement or commitment, however denominated, not to enforce a patent +(such as an express permission to practice a patent or covenant not to +sue for patent infringement). To "grant" such a patent license to a +party means to make such an agreement or commitment not to enforce a +patent against the party. + + If you convey a covered work, knowingly relying on a patent license, +and the Corresponding Source of the work is not available for anyone +to copy, free of charge and under the terms of this License, through a +publicly available network server or other readily accessible means, +then you must either (1) cause the Corresponding Source to be so +available, or (2) arrange to deprive yourself of the benefit of the +patent license for this particular work, or (3) arrange, in a manner +consistent with the requirements of this License, to extend the patent +license to downstream recipients. "Knowingly relying" means you have +actual knowledge that, but for the patent license, your conveying the +covered work in a country, or your recipient's use of the covered work +in a country, would infringe one or more identifiable patents in that +country that you have reason to believe are valid. + + If, pursuant to or in connection with a single transaction or +arrangement, you convey, or propagate by procuring conveyance of, a +covered work, and grant a patent license to some of the parties +receiving the covered work authorizing them to use, propagate, modify +or convey a specific copy of the covered work, then the patent license +you grant is automatically extended to all recipients of the covered +work and works based on it. + + A patent license is "discriminatory" if it does not include within +the scope of its coverage, prohibits the exercise of, or is +conditioned on the non-exercise of one or more of the rights that are +specifically granted under this License. You may not convey a covered +work if you are a party to an arrangement with a third party that is +in the business of distributing software, under which you make payment +to the third party based on the extent of your activity of conveying +the work, and under which the third party grants, to any of the +parties who would receive the covered work from you, a discriminatory +patent license (a) in connection with copies of the covered work +conveyed by you (or copies made from those copies), or (b) primarily +for and in connection with specific products or compilations that +contain the covered work, unless you entered into that arrangement, +or that patent license was granted, prior to 28 March 2007. + + Nothing in this License shall be construed as excluding or limiting +any implied license or other defenses to infringement that may +otherwise be available to you under applicable patent law. + + 12. No Surrender of Others' Freedom. + + If conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot convey a +covered work so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you may +not convey it at all. For example, if you agree to terms that obligate you +to collect a royalty for further conveying from those to whom you convey +the Program, the only way you could satisfy both those terms and this +License would be to refrain entirely from conveying the Program. + + 13. Use with the GNU Affero General Public License. + + Notwithstanding any other provision of this License, you have +permission to link or combine any covered work with a work licensed +under version 3 of the GNU Affero General Public License into a single +combined work, and to convey the resulting work. The terms of this +License will continue to apply to the part which is the covered work, +but the special requirements of the GNU Affero General Public License, +section 13, concerning interaction through a network will apply to the +combination as such. + + 14. Revised Versions of this License. + + The Free Software Foundation may publish revised and/or new versions of +the GNU General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + + Each version is given a distinguishing version number. If the +Program specifies that a certain numbered version of the GNU General +Public License "or any later version" applies to it, you have the +option of following the terms and conditions either of that numbered +version or of any later version published by the Free Software +Foundation. If the Program does not specify a version number of the +GNU General Public License, you may choose any version ever published +by the Free Software Foundation. + + If the Program specifies that a proxy can decide which future +versions of the GNU General Public License can be used, that proxy's +public statement of acceptance of a version permanently authorizes you +to choose that version for the Program. + + Later license versions may give you additional or different +permissions. However, no additional obligations are imposed on any +author or copyright holder as a result of your choosing to follow a +later version. + + 15. Disclaimer of Warranty. + + THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY +APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM +IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF +ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + <program> Copyright (C) <year> <name of author> + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<https://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<https://www.gnu.org/licenses/why-not-lgpl.html>. diff --git a/README.md b/README.md new file mode 100644 index 0000000..8380caf --- /dev/null +++ b/README.md @@ -0,0 +1 @@ +## libakiyo: C Platform and Network Support Library diff --git a/include/aki/common.h b/include/aki/common.h new file mode 100644 index 0000000..64a41c8 --- /dev/null +++ b/include/aki/common.h @@ -0,0 +1,7 @@ +#pragma once + +#include "../../src/common.h" + +#include "../../src/util/buffer.h" +#include "../../src/util/packet.h" +#include "../../src/util/timer/timer.h" diff --git a/include/aki/file.h b/include/aki/file.h new file mode 100644 index 0000000..1935efa --- /dev/null +++ b/include/aki/file.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/util/file/file.h" diff --git a/include/aki/http.h b/include/aki/http.h new file mode 100644 index 0000000..1f75987 --- /dev/null +++ b/include/aki/http.h @@ -0,0 +1,5 @@ +#pragma once + +#ifdef AKIYO_HAS_CURL +#include "../../src/http.h" +#endif diff --git a/include/aki/line_processor.h b/include/aki/line_processor.h new file mode 100644 index 0000000..613106c --- /dev/null +++ b/include/aki/line_processor.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/line_processor.h" diff --git a/include/aki/packet_cache.h b/include/aki/packet_cache.h new file mode 100644 index 0000000..4d2b73c --- /dev/null +++ b/include/aki/packet_cache.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/packet_cache.h" diff --git a/include/aki/packet_pool.h b/include/aki/packet_pool.h new file mode 100644 index 0000000..bf854e1 --- /dev/null +++ b/include/aki/packet_pool.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../src/packet_pool.h" diff --git a/include/aki/packet_stream.h b/include/aki/packet_stream.h new file mode 100644 index 0000000..b1f4533 --- /dev/null +++ b/include/aki/packet_stream.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/packet_stream.h" diff --git a/include/aki/rpc2.h b/include/aki/rpc2.h new file mode 100644 index 0000000..f89c8d6 --- /dev/null +++ b/include/aki/rpc2.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/rpc2.h" diff --git a/include/aki/signal.h b/include/aki/signal.h new file mode 100644 index 0000000..6c7a071 --- /dev/null +++ b/include/aki/signal.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/signal.h" diff --git a/include/aki/socket.h b/include/aki/socket.h new file mode 100644 index 0000000..1eacda0 --- /dev/null +++ b/include/aki/socket.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/socket/socket.h" diff --git a/include/aki/thread.h b/include/aki/thread.h new file mode 100644 index 0000000..729b1d4 --- /dev/null +++ b/include/aki/thread.h @@ -0,0 +1,4 @@ +#pragma once + +#include "../../src/util/thread/thread.h" +#include "../../src/util/timer/timer.h" diff --git a/include/aki/timer.h b/include/aki/timer.h new file mode 100644 index 0000000..08f5ff3 --- /dev/null +++ b/include/aki/timer.h @@ -0,0 +1,3 @@ +#pragma once + +#include "../../src/timer.h" diff --git a/meson.build b/meson.build new file mode 100644 index 0000000..34a2686 --- /dev/null +++ b/meson.build @@ -0,0 +1,77 @@ +project('libakiyo', 'c', version: '0.1', + default_options: ['warning_level=2', 'c_std=c99']) + +compiler = meson.get_compiler('c') + +akiyo_src = [ + 'src/common.c', + 'src/loop.c', + 'src/timer.c', + 'src/signal.c', + 'src/packet_pool.c', + 'src/packet_cache.c', + 'src/packet_stream.c', + 'src/rpc.c', + 'src/line_processor.c', + 'src/winwrap.c', + 'src/util/error.c', + 'src/util/buffer.c', + 'src/util/packet.c', + 'src/util/file/util.c' +] +akiyo_inc = [include_directories('include')] +akiyo_deps = [] +akiyo_args = [] + +alabaster = subproject('libalabaster') +akiyo_deps += [alabaster.get_variable('alabaster')] + +threads = dependency('threads', required: false) +if threads.found() + akiyo_deps += [threads] +endif + +# libev gets embedded in ev_embed_compat.c. +libev = subproject('libev').get_variable('ev') +akiyo_src += ['src/ev_embed_compat.c'] +akiyo_deps += [libev] + +libcurl = dependency('libcurl', required: false) +akiyo_has_curl = libcurl.found() +if akiyo_has_curl + akiyo_src += ['src/http.c'] + akiyo_deps += [libcurl] + akiyo_args += ['-DAKIYO_HAS_CURL'] +endif + +if host_machine.system() != 'windows' + akiyo_src += [ + 'src/util/timer/timer_linux.c', + 'src/util/thread/thread_linux.c', + 'src/util/file/file_linux.c', + 'src/socket/socket_linux.c' + ] + akiyo_args += ['-D_GNU_SOURCE'] + akiyo_has_mmap = true +else + akiyo_src += [ + 'src/util/timer/timer_windows.c', + 'src/util/thread/thread_windows.c', + 'src/util/file/file_stdio.c', + 'src/socket/socket_windows.c' + ] + akiyo_deps += [ + compiler.find_library('psapi', required: true), + compiler.find_library('ws2_32', required: true) + ] + akiyo_args += ['-DAKIYO_FILE_STDIO_COMPAT'] + akiyo_has_mmap = false +endif + +akiyo = declare_dependency(include_directories: akiyo_inc, + dependencies: akiyo_deps, sources: akiyo_src, + compile_args: akiyo_args) + +if get_option('build-tests') and not meson.is_subproject() + executable('tests', ['test/test.c'], dependencies: [akiyo]) +endif diff --git a/meson_options.txt b/meson_options.txt new file mode 100644 index 0000000..891bc02 --- /dev/null +++ b/meson_options.txt @@ -0,0 +1 @@ +option('build-tests', type: 'boolean', value: true) diff --git a/src/common.c b/src/common.c new file mode 100644 index 0000000..b9ee5c2 --- /dev/null +++ b/src/common.c @@ -0,0 +1,34 @@ +#include <al/lib.h> +#include <al/random.h> + +#ifndef _WIN32 +#include <unistd.h> +#else +#include "winwrap.h" +#endif + +#include "common.h" +#include "winwrap.h" + +void aki_common_init(void) +{ + al_malloc_init(); + al_rand_init(); + + aki_windows_init(); + +#ifndef _WIN32 + al_set_page_size(sysconf(_SC_PAGESIZE)); +#else + SYSTEM_INFO info; + GetSystemInfo(&info); + al_set_page_size(info.dwPageSize); +#endif +} + +void aki_common_close(void) +{ + aki_windows_close(); + + al_malloc_close(); +} diff --git a/src/common.h b/src/common.h new file mode 100644 index 0000000..da4b3e3 --- /dev/null +++ b/src/common.h @@ -0,0 +1,4 @@ +#pragma once + +void aki_common_init(void); +void aki_common_close(void); diff --git a/src/ev_embed_compat.c b/src/ev_embed_compat.c new file mode 100644 index 0000000..7fb39fb --- /dev/null +++ b/src/ev_embed_compat.c @@ -0,0 +1,29 @@ +#define EV_STANDALONE 1 +#define EV_USE_NANOSLEEP 1 +#define EV_USE_REALTIME 1 +#ifdef _WIN32 +#define FD_SETSIZE 2048 +#define EV_SELECT_IS_WINSOCKET 1 +#else +#define EV_AVOID_STDIO 1 +#endif + +#include "evwrap.h" +#if defined(__clang__) || defined(__GNUC__) +_Pragma("GCC diagnostic push") \ +_Pragma("GCC diagnostic ignored \"-Wstrict-aliasing\"") +_Pragma("GCC diagnostic ignored \"-Wcomment\"") +_Pragma("GCC diagnostic ignored \"-Wunused-value\"") +_Pragma("GCC diagnostic ignored \"-Wparentheses\"") +_Pragma("GCC diagnostic ignored \"-Wunused-parameter\"") +_Pragma("GCC diagnostic ignored \"-Wsign-compare\"") +_Pragma("GCC diagnostic ignored \"-Wreturn-type\"") +_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +#ifdef _WIN32 +_Pragma("GCC diagnostic ignored \"-Wextern-initializer\"") +#endif +#endif +#include <ev.c> +#if defined(__clang__) || defined(__GNUC__) +_Pragma("GCC diagnostic pop") +#endif diff --git a/src/evwrap.h b/src/evwrap.h new file mode 100644 index 0000000..331da06 --- /dev/null +++ b/src/evwrap.h @@ -0,0 +1,17 @@ +#pragma once + +#include <al/lib.h> + +#define EV_MULTIPLICITY 1 + +#define EV_STAT_ENABLE 0 +//#define EV_PERIODIC_ENABLE 0 +#define EV_SIGNAL_ENABLE 0 +#define EV_CHILD_ENABLE 0 +#define EV_IDLE_ENABLE 0 +#define EV_PREPARE_ENABLE 0 +#define EV_FORK_ENABLE 0 +#define EV_CLEANUP_ENABLE 0 +#define EV_EMBED_ENABLE 0 + +#include <ev.h> diff --git a/src/http.c b/src/http.c new file mode 100644 index 0000000..0036af2 --- /dev/null +++ b/src/http.c @@ -0,0 +1,256 @@ +#include <al/log.h> + +#include "http.h" + +#define USER_AGENT "Mozilla/5.0 (X11; Linux x86_64; rv:96.0) Gecko/20100101 Firefox/96.0" + +static void curl_socket_action_callback(struct ev_loop *loop, ev_io *w, s32 revents) +{ + (void)loop; + struct aki_http *http = (struct aki_http *)w->data; + + s32 action = ((revents & EV_READ) ? CURL_CSELECT_IN : 0) | ((revents & EV_WRITE) ? CURL_CSELECT_OUT : 0); + + s32 running; + CURLMcode mc = curl_multi_socket_action(http->multi_handle, http->sock, action, &running); + if (mc != CURLM_OK) { + al_log_error("http", "curl_multi_socket_action() failed (%s).", curl_multi_strerror(mc)); + return; + } + + http->handle_events(http); +} + +static void set_sock(struct aki_http *http, s32 what) +{ + http->event.data = http; + + s32 action = ((what & CURL_POLL_IN) ? EV_READ : 0) | ((what & CURL_POLL_OUT) ? EV_WRITE : 0); + + if (http->event.active) ev_io_stop(http->loop->ev, &http->event); + + ev_io_init(&http->event, curl_socket_action_callback, http->sock, action); + ev_io_start(http->loop->ev, &http->event); +} + +static s32 sock_callback(CURL *e, curl_socket_t s, s32 what, void *cbp, void *sockp) +{ + (void)e; + struct aki_http *http = (struct aki_http *)cbp; + if (what == CURL_POLL_REMOVE) { + http->sock = 0; + ev_io_stop(http->loop->ev, &http->event); + curl_multi_assign(http->multi_handle, http->sock, NULL); + } else { + if (!sockp) { + http->sock = s; + set_sock(http, what); + curl_multi_assign(http->multi_handle, http->sock, http); + } else { + set_sock(http, what); + } + } + return 0; +} + +static void timeout_callback(struct ev_loop *loop, ev_timer *w, s32 revents) +{ + (void)loop; + struct aki_http *http = (struct aki_http *)w->data; + (void)revents; + ev_timer_stop(http->loop->ev, w); + http->timer_started = false; + s32 running; + curl_multi_socket_action(http->multi_handle, CURL_SOCKET_TIMEOUT, 0, &running); + http->handle_events(http); +} + +static s32 timer_callback(CURLM *multi, s64 timeout_ms, void *userp) +{ + (void)multi; + struct aki_http *http = (struct aki_http *)userp; + if (timeout_ms == -1) { + ev_timer_stop(http->loop->ev, &http->timer); + return 0; + } + if (http->timer_started) { + ev_timer_stop(http->loop->ev, &http->timer); + } + http->timer.data = http; + ev_timer_init(&http->timer, timeout_callback, timeout_ms / 1000.0, 0.0); + http->timer_started = true; + ev_timer_start(http->loop->ev, &http->timer); + return 0; +} + +bool aki_http_init(struct aki_http *http) +{ + http->handle = curl_easy_init(); + if (!http->handle) goto err; + //curl_easy_setopt(http->handle, CURLOPT_VERBOSE, 1L); + curl_easy_setopt(http->handle, CURLOPT_NOPROGRESS, 1L); + curl_easy_setopt(http->handle, CURLOPT_USERAGENT, USER_AGENT); + http->multi_handle = curl_multi_init(); + if (!http->multi_handle) goto err; + curl_multi_setopt(http->multi_handle, CURLMOPT_SOCKETFUNCTION, sock_callback); + curl_multi_setopt(http->multi_handle, CURLMOPT_SOCKETDATA, http); + curl_multi_setopt(http->multi_handle, CURLMOPT_TIMERFUNCTION, timer_callback); + curl_multi_setopt(http->multi_handle, CURLMOPT_TIMERDATA, http); + http->url = NULL; + http->headers = NULL; + http->timer_started = false; + http->response_code = -1; + return true; +err: + if (http->handle) curl_easy_cleanup(http->handle); + if (http->multi_handle) curl_multi_cleanup(http->multi_handle); + return false; +} + +void aki_http_add_header(struct aki_http *http, str *header) +{ + char *c_str = al_str_to_c_str(header); + http->headers = curl_slist_append(http->headers, c_str); + al_free(c_str); +} + +void aki_http_set_url(struct aki_http *http, str *url) +{ + if (http->url) al_free(http->url); + http->url = al_str_to_c_str(url); + curl_easy_setopt(http->handle, CURLOPT_URL, http->url); +} + +void aki_http_set_range(struct aki_http *http, ssize_t start, ssize_t end) +{ + char range[64]; + if (start < 0) sprintf(range, "-%zd", end); + else if (end < 0) sprintf(range, "%zd-", start); + else sprintf(range, "%zd-%zd", start, end); + curl_easy_setopt(http->handle, CURLOPT_RANGE, range); +} + +void aki_http_close(struct aki_http *http) +{ + curl_easy_cleanup(http->handle); + curl_multi_cleanup(http->multi_handle); + al_free(http->url); +} + +static void stream_handle_events(struct aki_http *http) +{ + CURLMsg *msg; + s32 pending; + struct aki_http_stream *stream = (struct aki_http_stream *)http; + while ((msg = curl_multi_info_read(http->multi_handle, &pending))) { + switch (msg->msg) { + case CURLMSG_DONE: + al_assert(msg->easy_handle == http->handle); + if (msg->data.result != CURLE_OK) { + al_log_error("http", "Error handling curl_multi event (%s).", curl_easy_strerror(msg->data.result)); + return; + } + CURLMcode mc = curl_multi_remove_handle(http->multi_handle, msg->easy_handle); + if (mc != CURLM_OK) { + al_log_error("http", "curl_multi_remove_handle() failed (%s).", curl_multi_strerror(mc)); + return; + } + if (http->response_code < 0) { + curl_easy_getinfo(http->handle, CURLINFO_RESPONSE_CODE, &http->response_code); + } + if (http->response_code == 200) { + stream->callback(stream->userdata, AKI_HTTP_FINISHED, NULL, http->response_code); + } else if (http->response_code / 100 == 3) { + char *redirect_url = NULL; + curl_easy_getinfo(http->handle, CURLINFO_REDIRECT_URL, &redirect_url); + if (!redirect_url) { + stream->callback(stream->userdata, AKI_HTTP_ERROR, NULL, http->response_code); + return; + } + aki_http_set_url(http, al_str_c(redirect_url)); + mc = curl_multi_add_handle(http->multi_handle, http->handle); + if (mc != CURLM_OK) { + al_log_error("http", "curl_multi_add_handle() failed (%s).", curl_multi_strerror(mc)); + return; + } + stream->callback(stream->userdata, AKI_HTTP_REDIRECT, NULL, http->response_code); + } else { + stream->callback(stream->userdata, AKI_HTTP_ERROR, NULL, http->response_code); + } + return; + case CURLMSG_LAST: + al_log_warn("http", "Unhandled CURLMSG_LAST."); + break; + case CURLMSG_NONE: + al_log_warn("http", "Unhandled CURLMSG_NONE."); + break; + } + } +} + +bool aki_http_stream_init(struct aki_http_stream *stream) +{ + al_memset(stream, 0, sizeof(struct aki_http_stream)); + if (!aki_http_init(&stream->http)) return false; + stream->http.handle_events = stream_handle_events; + return true; +} + +static size_t stream_write_callback(char *buffer, size_t size, size_t nmemb, void *userdata) +{ + struct aki_http_stream *stream = (struct aki_http_stream *)userdata; + if (stream->http.response_code < 0) { + curl_easy_getinfo(stream->http.handle, CURLINFO_RESPONSE_CODE, &stream->http.response_code); + if (stream->http.response_code > 0) { + stream->callback(stream->userdata, AKI_HTTP_RESPONSE_CODE, NULL, stream->http.response_code); + curl_easy_getinfo(stream->http.handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T, &stream->http.content_length); + if (stream->http.content_length >= 0) { + stream->callback(stream->userdata, AKI_HTTP_CONTENT_LENGTH, NULL, (s64)stream->http.content_length); + } + } + } + return stream->callback(stream->userdata, AKI_HTTP_WRITE, (u8 *)buffer, size * nmemb); +} + +static size_t stream_read_callback(char *buffer, size_t size, size_t nmemb, void *userdata) +{ + struct aki_http_stream *stream = (struct aki_http_stream *)userdata; + return stream->callback(stream->userdata, AKI_HTTP_READ, (u8 *)buffer, size * nmemb); +} + +bool aki_http_stream_request(struct aki_http_stream *stream, u8 method, struct aki_event_loop *loop, + size_t (*callback)(void *, u8, u8 *, s64), void *userdata) +{ + al_assert(stream->http.url != NULL); + al_assert(stream->http.loop == NULL); + stream->http.loop = loop; + stream->callback = callback; + stream->userdata = userdata; + switch (method) { + case AKI_HTTP_HEAD: + curl_easy_setopt(stream->http.handle, CURLOPT_NOBODY, 1L); + break; + case AKI_HTTP_GET: + curl_easy_setopt(stream->http.handle, CURLOPT_HTTPGET, 1L); + break; + case AKI_HTTP_POST: + al_assert(false); // Not implemented. + } + curl_easy_setopt(stream->http.handle, CURLOPT_WRITEFUNCTION, stream_write_callback); + curl_easy_setopt(stream->http.handle, CURLOPT_WRITEDATA, stream); + curl_easy_setopt(stream->http.handle, CURLOPT_READFUNCTION, stream_read_callback); + curl_easy_setopt(stream->http.handle, CURLOPT_READDATA, stream); + // CURLM_RECURSIVE_API_CALL (8) also means we can't even call this + // while a callback is running on another thread. + CURLMcode mc = curl_multi_add_handle(stream->http.multi_handle, stream->http.handle); + if (mc != CURLM_OK) { + al_log_error("http", "curl_multi_add_handle() failed (%s).", curl_multi_strerror(mc)); + return false; + } + return true; +} + +void aki_http_stream_close(struct aki_http_stream *stream) +{ + aki_http_close(&stream->http); +} diff --git a/src/http.h b/src/http.h new file mode 100644 index 0000000..802a7f2 --- /dev/null +++ b/src/http.h @@ -0,0 +1,56 @@ +#pragma once + +#include <curl/curl.h> +#include <al/str.h> + +#include "util/buffer.h" + +#include "loop.h" + +enum { + AKI_HTTP_HEAD = 0, + AKI_HTTP_GET, + AKI_HTTP_POST, +}; + +struct aki_http { + ev_io event; + ev_timer timer; + bool timer_started; + struct aki_event_loop *loop; + CURL *handle; + CURLM *multi_handle; + char *url; + struct curl_slist *headers; + s64 response_code; + curl_off_t content_length; + curl_socket_t sock; + void (*handle_events)(struct aki_http *); +}; + +enum { + AKI_HTTP_WRITE = 0, + AKI_HTTP_READ, + AKI_HTTP_RESPONSE_CODE, + AKI_HTTP_CONTENT_LENGTH, + AKI_HTTP_FINISHED, + AKI_HTTP_REDIRECT, + AKI_HTTP_ERROR +}; + +struct aki_http_stream { + struct aki_http http; + size_t (*callback)(void *, u8, u8 *, s64); + void *userdata; +}; + +bool aki_http_init(struct aki_http *http); +void aki_http_add_header(struct aki_http *http, str *header); +void aki_http_set_url(struct aki_http *http, str *url); +void aki_http_set_range(struct aki_http *http, ssize_t start, ssize_t end); +void aki_http_close(struct aki_http *http); + +bool aki_http_stream_init(struct aki_http_stream *stream); +bool aki_http_stream_request(struct aki_http_stream *stream, u8 method, struct aki_event_loop *loop, + size_t (*callback)(void *, u8, u8 *, s64), void *userdata); +void aki_http_stream_close(struct aki_http_stream *stream); diff --git a/src/http_server.h b/src/http_server.h new file mode 100644 index 0000000..3f59c93 --- /dev/null +++ b/src/http_server.h @@ -0,0 +1,2 @@ +#pragma once + diff --git a/src/line_processor.c b/src/line_processor.c new file mode 100644 index 0000000..444142a --- /dev/null +++ b/src/line_processor.c @@ -0,0 +1,123 @@ +#include <al/log.h> + +#include "line_processor.h" + +// Read from a socket/fd and callback for each line. +// This isn't meant to be used seriously. In it's current state it's just to make testing easier. + +#define CHUNK_SIZE 512 +#define END al_str_c("X") + +struct line_processor_client { + ev_io event; + struct aki_socket s; + size_t index; + struct aki_buffer buf; + size_t mark; + struct aki_line_processor *pro; +}; + +static void read_callback(struct ev_loop *loop, ev_io *w, s32 revents) +{ + (void)loop; + struct line_processor_client *client = (struct line_processor_client *)w->data; + (void)revents; + + aki_buffer_ensure_size(&client->buf, client->index + CHUNK_SIZE); + u8 *ptr = aki_buffer_get_ptr(&client->buf, client->index); + ssize_t ret; + if (client->pro->type == AKI_LINE_PROCESSOR_SOCKET) { + ret = aki_socket_read(&client->s, ptr, CHUNK_SIZE); + } else { + ret = aki_read(client->pro->fd, ptr, CHUNK_SIZE); + } + if (ret <= 0) return; + + client->index += ret; + + str *delim = &client->pro->delim; + u32 offset = delim->len - 1; + ptr = aki_buffer_get_ptr(&client->buf, 0); + for (size_t i = client->mark; i < client->index - offset; i++) { + if (al_str_cmp(al_str_w((char *)ptr, i, (u32)(client->index - i)), delim, 0, delim->len) == 0) { + str *s = al_str_w((char *)ptr, 0, i); + if (al_str_eq(s, END)) { + ev_io_stop(client->pro->loop->ev, &client->event); + if (client->pro->type == AKI_LINE_PROCESSOR_SOCKET) { + aki_socket_close(&client->s); + } + aki_buffer_free(&client->buf); + al_free(client); + return; + } + client->pro->callback(client->pro->userdata, s); + size_t skip = i + offset + 1; + client->index = client->index - skip; + al_memmove(ptr, &ptr[skip], client->index); + client->mark = i = 0; + } + } + + client->mark = client->index; +} + +static void socket_connection_callback(struct ev_loop *loop, ev_io *w, s32 revents) +{ + (void)loop; + struct aki_line_processor *pro = (struct aki_line_processor *)w->data; + (void)revents; + struct line_processor_client *client = al_alloc_object(struct line_processor_client); + client->s.config.blocking = false; + client->s.config.no_delay = false; + if (!aki_socket_accept(pro->s, &client->s)) { + al_free(client); + return; + } + client->index = 0; + aki_buffer_init(&client->buf); + client->mark = 0; + client->pro = pro; + client->event.data = client; + ev_io_init(&client->event, read_callback, aki_socket_get_fd(&client->s), EV_READ); + ev_io_start(pro->loop->ev, &client->event); +} + +void aki_line_processor_init(struct aki_line_processor *pro, str *delim) +{ + al_str_clone(&pro->delim, delim); +} + +void aki_line_processor_open_socket(struct aki_line_processor *pro, struct aki_socket *socket) +{ + pro->type = AKI_LINE_PROCESSOR_SOCKET; + pro->s = socket; +} + +void aki_line_processor_open_fd(struct aki_line_processor *pro, s32 fd) +{ + pro->type = AKI_LINE_PROCESSOR_FD; + pro->fd = fd; +} + +void aki_line_processor_run(struct aki_line_processor *pro, struct aki_event_loop *loop) +{ + pro->loop = loop; + switch (pro->type) { + case AKI_LINE_PROCESSOR_SOCKET: + pro->event.data = pro; + ev_io_init(&pro->event, socket_connection_callback, aki_socket_get_fd(pro->s), EV_READ); + ev_io_start(pro->loop->ev, &pro->event); + break; + case AKI_LINE_PROCESSOR_FD: { // Not supported on windows. + struct line_processor_client *client = al_alloc_object(struct line_processor_client); + client->index = 0; + aki_buffer_init(&client->buf); + client->mark = 0; + client->pro = pro; + client->event.data = client; + ev_io_init(&client->event, read_callback, pro->fd, EV_READ); + ev_io_start(pro->loop->ev, &client->event); + break; + } + } +} diff --git a/src/line_processor.h b/src/line_processor.h new file mode 100644 index 0000000..7ce3ca3 --- /dev/null +++ b/src/line_processor.h @@ -0,0 +1,34 @@ +#pragma once + +#include <al/types.h> +#include <al/str.h> +#include <al/array.h> + +#include "util/buffer.h" +#include "util/thread/thread.h" +#include "util/file/file.h" +#include "socket/socket.h" + +#include "loop.h" +#include "signal.h" + +enum { + AKI_LINE_PROCESSOR_SOCKET = 0, + AKI_LINE_PROCESSOR_FD +}; + +struct aki_line_processor { + struct aki_event_loop *loop; + u8 type; + ev_io event; + struct aki_socket *s; + s32 fd; + str delim; + void (*callback)(void *, str *line); + void *userdata; +}; + +void aki_line_processor_init(struct aki_line_processor *pro, str *delim); +void aki_line_processor_open_socket(struct aki_line_processor *pro, struct aki_socket *socket); +void aki_line_processor_open_fd(struct aki_line_processor *pro, s32 fd); +void aki_line_processor_run(struct aki_line_processor *pro, struct aki_event_loop *loop); diff --git a/src/loop.c b/src/loop.c new file mode 100644 index 0000000..6598768 --- /dev/null +++ b/src/loop.c @@ -0,0 +1,35 @@ +#include "loop.h" + +bool aki_event_loop_init(struct aki_event_loop *loop) +{ + loop->ev = ev_loop_new(EVFLAG_AUTO); + //ev_set_timeout_collect_interval(loop->ev, 0.1); + //ev_set_io_collect_interval(loop->ev, 0.05); + return true; +} + +s32 aki_event_loop_run(struct aki_event_loop *loop) +{ + return ev_run(loop->ev, 0); +} + +s32 aki_event_loop_run_once(struct aki_event_loop *loop) +{ + return ev_run(loop->ev, EVRUN_ONCE); +} + +void aki_event_loop_break_one(struct aki_event_loop *loop) +{ + ev_break(loop->ev, EVBREAK_ONE); +} + +void aki_event_loop_break(struct aki_event_loop *loop) +{ + ev_break(loop->ev, EVBREAK_ALL); +} + +void aki_event_loop_destroy(struct aki_event_loop *loop) +{ + ev_loop_destroy(loop->ev); + loop->ev = NULL; +} diff --git a/src/loop.h b/src/loop.h new file mode 100644 index 0000000..aba49d9 --- /dev/null +++ b/src/loop.h @@ -0,0 +1,17 @@ +#pragma once + +#include <al/types.h> + +#include "evwrap.h" + +struct aki_event_loop { + struct ev_loop *ev; +}; + +bool aki_event_loop_init(struct aki_event_loop *loop); +s32 aki_event_loop_run(struct aki_event_loop *loop); +s32 aki_event_loop_run_once(struct aki_event_loop *loop); +void aki_event_loop_break_one(struct aki_event_loop *loop); +void aki_event_loop_break(struct aki_event_loop *loop); +bool aki_event_loop_is_broken(struct aki_event_loop *loop); +void aki_event_loop_destroy(struct aki_event_loop *loop); diff --git a/src/packet_cache.c b/src/packet_cache.c new file mode 100644 index 0000000..e08bee7 --- /dev/null +++ b/src/packet_cache.c @@ -0,0 +1,78 @@ +#include "packet_cache.h" + +void aki_packet_cache_init(struct aki_packet_cache *cache, u32 size) +{ + al_array_init(cache->cache); + al_array_reserve(cache->cache, size); + aki_cond_init(&cache->cond); + aki_mutex_init(&cache->mutex); + cache->disabled = false; +} + +bool aki_packet_cache_send_packet(struct aki_packet_cache *cache, struct aki_packet *packet) +{ + aki_mutex_lock(&cache->mutex); + if (cache->disabled) { + aki_mutex_unlock(&cache->mutex); + return false; + } + al_array_push(cache->cache, packet); + if (aki_cond_is_waiting(&cache->cond)) { + aki_cond_signal(&cache->cond); + } + aki_mutex_unlock(&cache->mutex); + return true; +} + +bool aki_packet_cache_wait(struct aki_packet_cache *cache) +{ + aki_mutex_lock(&cache->mutex); + if (cache->disabled) { + aki_mutex_unlock(&cache->mutex); + return false; + } + if (cache->cache.size == 0) { + aki_cond_wait(&cache->cond, &cache->mutex); + } + if (cache->disabled) { + aki_mutex_unlock(&cache->mutex); + return false; + } + aki_mutex_unlock(&cache->mutex); + return true; +} + +struct aki_packet *aki_packet_cache_pop(struct aki_packet_cache *cache) +{ + aki_mutex_lock(&cache->mutex); + struct aki_packet *packet = NULL; + if (cache->cache.size > 0) { + al_array_pop_at(cache->cache, 0, packet); + } + aki_mutex_unlock(&cache->mutex); + return packet; +} + +void aki_packet_cache_disable(struct aki_packet_cache *cache) +{ + aki_mutex_lock(&cache->mutex); + cache->disabled = true; + if (aki_cond_is_waiting(&cache->cond)) { + aki_cond_signal(&cache->cond); + } + aki_mutex_unlock(&cache->mutex); +} + +void aki_packet_cache_enable(struct aki_packet_cache *cache) +{ + aki_mutex_lock(&cache->mutex); + cache->disabled = false; + aki_mutex_unlock(&cache->mutex); +} + +void aki_packet_cache_free(struct aki_packet_cache *cache) +{ + al_array_free(cache->cache); + aki_mutex_destroy(&cache->mutex); + aki_cond_destroy(&cache->cond); +} diff --git a/src/packet_cache.h b/src/packet_cache.h new file mode 100644 index 0000000..980c586 --- /dev/null +++ b/src/packet_cache.h @@ -0,0 +1,24 @@ +#pragma once + +#include <al/array.h> + +#include "util/packet.h" +#include "util/thread/thread.h" + +#include "loop.h" +#include "evwrap.h" + +struct aki_packet_cache { + array(struct aki_packet *) cache; + struct aki_cond cond; + struct aki_mutex mutex; + bool disabled; +}; + +void aki_packet_cache_init(struct aki_packet_cache *cache, u32 size); +bool aki_packet_cache_send_packet(struct aki_packet_cache *cache, struct aki_packet *packet); +bool aki_packet_cache_wait(struct aki_packet_cache *cache); +struct aki_packet *aki_packet_cache_pop(struct aki_packet_cache *cache); +void aki_packet_cache_disable(struct aki_packet_cache *cache); +void aki_packet_cache_enable(struct aki_packet_cache *cache); +void aki_packet_cache_free(struct aki_packet_cache *cache); diff --git a/src/packet_pool.c b/src/packet_pool.c new file mode 100644 index 0000000..4c942b1 --- /dev/null +++ b/src/packet_pool.c @@ -0,0 +1,169 @@ +#include "packet_pool.h" + +static void return_internal(struct aki_packet_pool *pool, struct aki_packet *packet) +{ + aki_packet_reset(packet); + al_array_push(pool->empty, packet); + if (aki_cond_is_waiting(&pool->cond)) { + aki_cond_signal(&pool->cond); + } +} + +static void signal_callback(struct ev_loop *loop, ev_async *w, s32 revents) +{ + (void)loop; + struct aki_packet_pool *pool = (struct aki_packet_pool *)w->data; + (void)revents; + aki_mutex_lock(&pool->mutex); + while (pool->ready.size > 0) { + struct aki_packet *packet; + al_array_pop_at(pool->ready, 0, packet); + aki_mutex_unlock(&pool->mutex); + u8 ret = pool->callback(pool->userdata, packet); + al_assert(ret != AKI_PACKET_POOL_CLOSED); + aki_mutex_lock(&pool->mutex); + switch (ret) { + case AKI_PACKET_POOL_KEEP: // AKI_PACKET_POOL_NOP + break; + case AKI_PACKET_POOL_RETURN: + al_assert(pool->mode == AKI_PACKET_POOL_MODE_POOL); + return_internal(pool, packet); + break; + case AKI_PACKET_POOL_DISABLE: + al_assert(pool->mode == AKI_PACKET_POOL_MODE_POOL); + pool->disabled = true; + return_internal(pool, packet); + aki_mutex_unlock(&pool->mutex); + ret = pool->callback(pool->userdata, NULL); + al_assert(ret == AKI_PACKET_POOL_CLOSED); + // signal_callback must never be called again. + return; + } + } + aki_mutex_unlock(&pool->mutex); +} + +static void init_internal(struct aki_packet_pool *pool, u32 size, struct aki_event_loop *loop, + u8 mode, u8 (*callback)(void *, struct aki_packet *), void *userdata) +{ + pool->mode = mode; + pool->loop = loop; + al_array_init(pool->ready); + al_array_reserve(pool->ready, size); + if (pool->mode == AKI_PACKET_POOL_MODE_POOL) { + al_array_init(pool->empty); + al_array_reserve(pool->empty, size); + for (u32 i = 0; i < size; i++) { + al_array_push(pool->empty, aki_packet_create()); + } + } + pool->disabled = false; + aki_cond_init(&pool->cond); + aki_mutex_init(&pool->mutex); + pool->signal.data = pool; + ev_async_init(&pool->signal, signal_callback); + ev_async_start(pool->loop->ev, &pool->signal); + pool->callback = callback; + pool->userdata = userdata; +} + +void aki_packet_pool_init(struct aki_packet_pool *pool, u32 size, struct aki_event_loop *loop, + u8 (*callback)(void *, struct aki_packet *), void *userdata) +{ + init_internal(pool, size, loop, AKI_PACKET_POOL_MODE_POOL, callback, userdata); +} + +void aki_packet_pool_init_ex(struct aki_packet_pool *pool, u32 size, struct aki_event_loop *loop, + u8 mode, u8 (*callback)(void *, struct aki_packet *), void *userdata) +{ + init_internal(pool, size, loop, mode, callback, userdata); +} + +struct aki_packet *aki_packet_pool_get(struct aki_packet_pool *pool) +{ + al_assert(pool->mode == AKI_PACKET_POOL_MODE_POOL); + aki_mutex_lock(&pool->mutex); + if (!pool->disabled && !pool->empty.size) { + aki_cond_wait(&pool->cond, &pool->mutex); + } + if (pool->disabled) { + aki_mutex_unlock(&pool->mutex); + return NULL; + } + struct aki_packet *packet = al_array_pop(pool->empty); + aki_mutex_unlock(&pool->mutex); + return packet; +} + +void aki_packet_pool_submit(struct aki_packet_pool *pool, struct aki_packet *packet) +{ + aki_mutex_lock(&pool->mutex); + if (pool->disabled) { + aki_mutex_unlock(&pool->mutex); + return; + } + al_array_push(pool->ready, packet); + aki_mutex_unlock(&pool->mutex); + ev_async_send(pool->loop->ev, &pool->signal); +} + +void aki_packet_pool_return(struct aki_packet_pool *pool, struct aki_packet *packet) +{ + al_assert(pool->mode == AKI_PACKET_POOL_MODE_POOL); + aki_mutex_lock(&pool->mutex); + return_internal(pool, packet); + aki_mutex_unlock(&pool->mutex); +} + +void aki_packet_pool_disable(struct aki_packet_pool *pool) +{ + al_assert(pool->mode == AKI_PACKET_POOL_MODE_POOL); + aki_mutex_lock(&pool->mutex); + pool->disabled = true; + struct aki_packet *packet; + al_array_foreach(pool->ready, i, packet) { + aki_packet_reset(packet); + al_array_push(pool->empty, packet); + } + pool->ready.size = 0; + if (aki_cond_is_waiting(&pool->cond)) { + aki_cond_signal(&pool->cond); + } + aki_mutex_unlock(&pool->mutex); +} + +void aki_packet_pool_enable(struct aki_packet_pool *pool) +{ + al_assert(pool->mode == AKI_PACKET_POOL_MODE_POOL); + aki_mutex_lock(&pool->mutex); + pool->disabled = false; + aki_mutex_unlock(&pool->mutex); +} + +struct aki_packet *aki_packet_pool_pop(struct aki_packet_pool *pool) +{ + al_assert(pool->mode == AKI_PACKET_POOL_MODE_PASSTHROUGH); + struct aki_packet *packet = NULL; + if (pool->ready.size > 0) { + al_array_pop_at(pool->ready, 0, packet); + } + return packet; +} + +void aki_packet_pool_free(struct aki_packet_pool *pool) +{ + ev_async_stop(pool->loop->ev, &pool->signal); + aki_mutex_destroy(&pool->mutex); + aki_cond_destroy(&pool->cond); + struct aki_packet *packet; + if (pool->mode == AKI_PACKET_POOL_MODE_POOL) { + al_array_foreach(pool->empty, i, packet) { + aki_packet_free(packet); + } + al_array_free(pool->empty); + al_array_foreach(pool->ready, i, packet) { + aki_packet_free(packet); + } + } + al_array_free(pool->ready); +} diff --git a/src/packet_pool.h b/src/packet_pool.h new file mode 100644 index 0000000..2a2e608 --- /dev/null +++ b/src/packet_pool.h @@ -0,0 +1,63 @@ +#pragma once + +#include <al/array.h> + +#include "util/packet.h" +#include "util/thread/thread.h" + +#include "loop.h" + +// Steps (MODE_POOL): +// packet_get (block) \ Thread 2 +// packet_submit (signal async) / +// callback called \ Thread 1 +// packet_return (unblock) / +// pool_disable() +// join(thread1) && join(thread2) +// pool_free() + +// Steps (MODE_PASSTHROUGH): +// packet_submit (signal async) -> Thread 2 +// callback called -> Thread 1 +// join(thread1) && join(thread2) +// while (pop()) {} (empty pool) +// pool_free() + +enum { + AKI_PACKET_POOL_MODE_POOL = 0, + AKI_PACKET_POOL_MODE_PASSTHROUGH +}; + +enum { + AKI_PACKET_POOL_KEEP = 0, + AKI_PACKET_POOL_RETURN, + AKI_PACKET_POOL_DISABLE, + AKI_PACKET_POOL_CLOSED +}; + +#define AKI_PACKET_POOL_NOP AKI_PACKET_POOL_KEEP + +struct aki_packet_pool { + u8 mode; + array(struct aki_packet *) empty; + array(struct aki_packet *) ready; + struct aki_event_loop *loop; + struct aki_cond cond; + struct aki_mutex mutex; + ev_async signal; + bool disabled; + u8 (*callback)(void *, struct aki_packet *); + void *userdata; +}; + +void aki_packet_pool_init(struct aki_packet_pool *pool, u32 size, struct aki_event_loop *loop, + u8 (*callback)(void *, struct aki_packet *), void *userdata); +void aki_packet_pool_init_ex(struct aki_packet_pool *pool, u32 size, struct aki_event_loop *loop, + u8 mode, u8 (*callback)(void *, struct aki_packet *), void *userdata); +struct aki_packet *aki_packet_pool_get(struct aki_packet_pool *pool); +void aki_packet_pool_submit(struct aki_packet_pool *pool, struct aki_packet *packet); +void aki_packet_pool_return(struct aki_packet_pool *pool, struct aki_packet *packet); +void aki_packet_pool_disable(struct aki_packet_pool *pool); +void aki_packet_pool_enable(struct aki_packet_pool *pool); +struct aki_packet *aki_packet_pool_pop(struct aki_packet_pool *pool); +void aki_packet_pool_free(struct aki_packet_pool *pool); diff --git a/src/packet_stream.c b/src/packet_stream.c new file mode 100644 index 0000000..8da342f --- /dev/null +++ b/src/packet_stream.c @@ -0,0 +1,260 @@ +#include "packet_stream.h" + +static void init_internal(struct aki_packet_stream *stream) +{ + al_array_init(stream->out.queue); + stream->out.packet = NULL; + stream->out.have_data = false; + stream->in.packet = aki_packet_create(); + stream->in.index = 0; + stream->in.have_size = false; +} + +bool aki_packet_stream_init(struct aki_packet_stream *stream, u8 type, + void (*connection_callback)(void *, struct aki_packet_stream *), + void (*connection_closed_callback)(void *, struct aki_packet_stream *), + void (*packet_callback)(void *, struct aki_packet_stream *, struct aki_packet *), + void (*packet_sent_callback)(void *, struct aki_packet *), void *userdata) +{ + stream->connection_callback = connection_callback; + stream->connection_closed_callback = connection_closed_callback; + stream->packet_callback = packet_callback; + stream->packet_sent_callback = packet_sent_callback; + stream->flushed_callback = NULL; + stream->userdata = userdata; + stream->s.type = type; + stream->s.config.blocking = false; + stream->s.config.no_delay = false; + if (!aki_socket_init(&stream->s)) return false; + init_internal(stream); + stream->connected = false; + return true; +} + +void aki_packet_stream_set_no_delay(struct aki_packet_stream *stream, bool no_delay) +{ + aki_socket_set_no_delay(&stream->s, no_delay); +} + +static void stop_write_internal(struct aki_packet_stream *stream) +{ + stream->out.have_data = false; + ev_io_stop(stream->loop->ev, &stream->wevent); +} + +static void stop_internal(struct aki_packet_stream *stream) +{ + stream->connected = false; + if (stream->timer_started) { + ev_timer_stop(stream->loop->ev, &stream->timer); + stream->timer_started = false; + } + if (stream->revent.active) { + ev_io_stop(stream->loop->ev, &stream->revent); + } + if (stream->out.have_data) { + stop_write_internal(stream); + } + aki_socket_close(&stream->s); + stream->connection_closed_callback(stream->userdata, stream); +} + +static void stream_read_callback(struct ev_loop *loop, ev_io *w, s32 revents) +{ + (void)loop; + struct aki_packet_stream *stream = (struct aki_packet_stream *)w->data; + (void)revents; + u8 *ptr = aki_buffer_get_ptr(&stream->in.packet->buffer, stream->in.index); + u32 size = ((stream->in.have_size) ? aki_packet_size(stream->in.packet) : AKI_PACKET_HEADER_LENGTH); + ssize_t ret = aki_socket_read(&stream->s, ptr, size - stream->in.index); + if (ret <= 0) { + stop_internal(stream); + return; + } + stream->in.index += ret; + if (!stream->in.have_size && stream->in.index >= AKI_PACKET_HEADER_LENGTH) { + stream->in.have_size = true; + size = aki_packet_size(stream->in.packet); + aki_buffer_ensure_size(&stream->in.packet->buffer, size); + } + if (stream->in.have_size && stream->in.index >= size) { + struct aki_packet *packet = stream->in.packet; + stream->in.packet = aki_packet_create(); + stream->in.index = 0; + stream->in.have_size = false; + stream->packet_callback(stream->userdata, stream, packet); + // Stream could be invalid after this point. + } +} + +static void start_read_internal(struct aki_packet_stream *stream) +{ + ev_io_start(stream->loop->ev, &stream->revent); +} + +static void stream_write_callback(struct ev_loop *loop, ev_io *w, s32 revents) +{ + (void)loop; + struct aki_packet_stream *stream = (struct aki_packet_stream *)w->data; + (void)revents; + if (UNLIKELY(!stream->connected)) { + stream->connected = true; + stop_write_internal(stream); + // This needs to be called before starting to read because setting + // connection_closed_callback and/or packet_callback here should be valid. + stream->connection_callback(stream->userdata, stream); + start_read_internal(stream); + return; + } + if (!stream->out.packet) { + if (stream->out.queue.size > 0) { + al_array_pop_at(stream->out.queue, 0, stream->out.packet); + stream->out.index = 0; + } else { + stop_write_internal(stream); + return; + } + } + u8 *ptr = aki_buffer_get_ptr(&stream->out.packet->buffer, stream->out.index); + u32 size = aki_packet_size(stream->out.packet); + ssize_t ret = aki_socket_write(&stream->s, ptr, size - stream->out.index); + if (ret <= 0) { + stop_write_internal(stream); + return; + } + stream->out.index += ret; + if (stream->out.index >= size) { + stream->packet_sent_callback(stream->userdata, stream->out.packet); + stream->out.packet = NULL; + if (stream->out.queue.size == 0 && stream->flushed_callback) { + stream->flushed_callback(stream->userdata); + } + } +} + +static void socket_connection_callback(struct ev_loop *loop, ev_io *w, s32 revents) +{ + (void)loop; + struct aki_packet_stream *server = (struct aki_packet_stream *)w->data; + (void)revents; + struct aki_packet_stream *client = al_alloc_object(struct aki_packet_stream); + client->s.config.blocking = false; + client->s.config.no_delay = false; + if (!aki_socket_accept(&server->s, &client->s)) { + al_free(client); + return; + } + client->connected = true; + client->loop = server->loop; + init_internal(client); + server->connection_callback(server->userdata, client); + client->wevent.data = client; + ev_io_init(&client->wevent, stream_write_callback, + aki_socket_get_fd(&client->s), EV_WRITE); + client->revent.data = client; + ev_io_init(&client->revent, stream_read_callback, + aki_socket_get_fd(&client->s), EV_READ); + ev_io_start(client->loop->ev, &client->revent); +} + +void aki_packet_stream_listen(struct aki_packet_stream *stream, + struct aki_event_loop *loop, str *addr, s32 port) +{ + stream->loop = loop; + // wevent not used for listening. + stream->revent.data = stream; + ev_io_init(&stream->revent, socket_connection_callback, + aki_socket_get_fd(&stream->s), EV_READ); + ev_io_start(loop->ev, &stream->revent); + aki_socket_listen(&stream->s, addr, port); +} + +static void timeout_callback(struct ev_loop *loop, ev_timer *w, s32 revents) +{ + (void)loop; + struct aki_packet_stream *stream = (struct aki_packet_stream *)w->data; + (void)revents; + if (!stream->connected) stop_internal(stream); +} + +static void start_write_internal(struct aki_packet_stream *stream) +{ + stream->out.have_data = true; + ev_io_start(stream->loop->ev, &stream->wevent); +} + +void aki_packet_stream_connect(struct aki_packet_stream *stream, + struct aki_event_loop *loop, str *addr, s32 port) +{ + stream->loop = loop; + stream->revent.data = stream; + ev_io_init(&stream->revent, stream_read_callback, + aki_socket_get_fd(&stream->s), EV_READ); + stream->wevent.data = stream; + ev_io_init(&stream->wevent, stream_write_callback, + aki_socket_get_fd(&stream->s), EV_WRITE); + start_write_internal(stream); + stream->timer.data = stream; + ev_timer_init(&stream->timer, timeout_callback, 5.0, 0.0); + if (!aki_socket_connect(&stream->s, addr, port)) { + stop_internal(stream); + return; + } + stream->timer_started = true; + ev_timer_start(loop->ev, &stream->timer); +} + +void aki_packet_stream_pause(struct aki_packet_stream *stream) +{ + if (stream->connected && stream->revent.active) { + ev_io_stop(stream->loop->ev, &stream->revent); + } +} + +void aki_packet_stream_resume(struct aki_packet_stream *stream) +{ + if (stream->connected && !stream->revent.active) { + ev_io_start(stream->loop->ev, &stream->revent); + } +} + +void aki_packet_stream_send_packet(struct aki_packet_stream *stream, struct aki_packet *packet) +{ + al_assert(stream->connected); + aki_packet_write_size(packet); + al_array_push(stream->out.queue, packet); + if (!stream->out.have_data) { + start_write_internal(stream); + } +} + +void aki_packet_stream_flush(struct aki_packet_stream *stream, void (*flushed_callback)(void *)) +{ + stream->flushed_callback = flushed_callback; + if (!stream->out.have_data) { + stream->flushed_callback(stream->userdata); + } +} + +void aki_packet_stream_disconnect(struct aki_packet_stream *stream) +{ + if (stream->connected) { + aki_socket_shutdown(&stream->s); + aki_packet_stream_resume(stream); + } +} + +void aki_packet_stream_free(struct aki_packet_stream *stream) +{ + if (stream->in.packet) { + aki_packet_free(stream->in.packet); + } + if (stream->out.packet) { + stream->packet_sent_callback(stream->userdata, stream->out.packet); + } + struct aki_packet *packet; + al_array_foreach(stream->out.queue, i, packet) { + stream->packet_sent_callback(stream->userdata, packet); + } + al_array_free(stream->out.queue); +} diff --git a/src/packet_stream.h b/src/packet_stream.h new file mode 100644 index 0000000..027fac0 --- /dev/null +++ b/src/packet_stream.h @@ -0,0 +1,52 @@ +#pragma once + +#include <al/array.h> + +#include "util/packet.h" +#include "socket/socket.h" + +#include "loop.h" + +struct aki_packet_stream { + struct aki_socket s; + struct aki_event_loop *loop; + ev_io revent; + ev_io wevent; + ev_timer timer; + bool timer_started; + bool connected; + void (*connection_callback)(void *, struct aki_packet_stream *); + void (*connection_closed_callback)(void *, struct aki_packet_stream *); + void (*packet_callback)(void *, struct aki_packet_stream *, struct aki_packet *); + void (*packet_sent_callback)(void *, struct aki_packet *); + void (*flushed_callback)(void *); + void *userdata; + struct { + array(struct aki_packet *) queue; + struct aki_packet *packet; + bool have_data; + size_t index; + } out; + struct { + struct aki_packet *packet; + bool have_size; + size_t index; + } in; +}; + +bool aki_packet_stream_init(struct aki_packet_stream *stream, u8 type, + void (*connection_callback)(void *, struct aki_packet_stream *), + void (*connection_closed_callback)(void *, struct aki_packet_stream *), + void (*packet_callback)(void *, struct aki_packet_stream *, struct aki_packet *), + void (*packet_sent_callback)(void *, struct aki_packet *), void *userdata); +void aki_packet_stream_set_no_delay(struct aki_packet_stream *stream, bool no_delay); +void aki_packet_stream_listen(struct aki_packet_stream *stream, + struct aki_event_loop *loop, str *addr, s32 port); +void aki_packet_stream_connect(struct aki_packet_stream *stream, + struct aki_event_loop *loop, str *addr, s32 port); +void aki_packet_stream_pause(struct aki_packet_stream *stream); +void aki_packet_stream_resume(struct aki_packet_stream *stream); +void aki_packet_stream_send_packet(struct aki_packet_stream *stream, struct aki_packet *packet); +void aki_packet_stream_flush(struct aki_packet_stream *stream, void (*flushed_callback)(void *)); +void aki_packet_stream_disconnect(struct aki_packet_stream *stream); +void aki_packet_stream_free(struct aki_packet_stream *stream); diff --git a/src/rpc.c b/src/rpc.c new file mode 100644 index 0000000..edf73c0 --- /dev/null +++ b/src/rpc.c @@ -0,0 +1,146 @@ +#include "rpc2.h" + +static void connection_closed_callback(void *userdata, struct aki_packet_stream *s) +{ + struct aki_rpc_connection *conn = (struct aki_rpc_connection *)userdata; + al_assert(s == conn->stream); + conn->rpc->connection_closed_callback(conn->rpc->userdata, conn); +} + +static void packet_callback(void *userdata, struct aki_packet_stream *s, struct aki_packet *packet) +{ + struct aki_rpc_connection *conn = (struct aki_rpc_connection *)userdata; + s8 op = aki_packet_read_s8(packet); + u32 id = aki_packet_read_u32(packet); + if (op == -1) { // Response + struct aki_rpc_callback *callback; + al_array_foreach_ptr(conn->callbacks, i, callback) { + if (callback->id == id) { + callback->callback(callback->userdata, packet); + al_array_remove_at_iter(conn->callbacks, i); + break; + } + } + } else { // Command + struct aki_rpc_command *command; + al_array_foreach_ptr(conn->rpc->commands, i, command) { + if (command->op == op) { + struct aki_packet *rpacket = aki_packet_create(); + aki_packet_write_s8(rpacket, -1); + aki_packet_write_u32(rpacket, id); + if (command->callback(command->userdata, conn, packet, rpacket)) { + aki_packet_stream_send_packet(s, rpacket); + } else { + aki_packet_free(rpacket); + } + } + } + } +} + +static void packet_sent_callback(void *userdata, struct aki_packet *packet) +{ + (void)userdata; + aki_packet_free(packet); +} + +static void connection_callback(void *userdata, struct aki_packet_stream *s) +{ + struct aki_rpc *rpc = (struct aki_rpc *)userdata; + aki_packet_stream_set_no_delay(s, true); + struct aki_rpc_connection *conn = al_alloc_object(struct aki_rpc_connection); + al_array_push(rpc->connections, conn); + conn->rpc = rpc; + conn->stream = s; + // connection_callback will never be called twice for the same stream. + s->connection_closed_callback = connection_closed_callback; + s->packet_callback = packet_callback; + s->packet_sent_callback = packet_sent_callback; + s->flushed_callback = NULL; + // For aki_rpc_connect this overwrites rpc as userdata, whereas for aki_rpc_listen + // this is a new aki_packet_stream object. + s->userdata = conn; + al_array_init(conn->callbacks); + rpc->connection_callback(rpc->userdata, conn); +} + +bool aki_rpc_init(struct aki_rpc *rpc, u8 type, + void (*connection_callback)(void *, struct aki_rpc_connection *), + void (*connection_closed_callback)(void *, struct aki_rpc_connection *), void *userdata) +{ + rpc->type = type; + rpc->id = 0; + rpc->connection_callback = connection_callback; + rpc->connection_closed_callback = connection_closed_callback; + rpc->userdata = userdata; + al_array_init(rpc->connections); + al_array_init(rpc->commands); + return true; +} + +void aki_rpc_add_command(struct aki_rpc *rpc, struct aki_rpc_command *command) +{ + al_array_push(rpc->commands, *command); +} + +bool aki_rpc_listen(struct aki_rpc *rpc, struct aki_event_loop *loop, str *addr, s32 port) +{ + if (!aki_packet_stream_init(&rpc->stream, rpc->type, connection_callback, NULL, NULL, NULL, rpc)) { + return false; + } + aki_packet_stream_set_no_delay(&rpc->stream, true); + aki_packet_stream_listen(&rpc->stream, loop, addr, port); + return true; +} + +bool aki_rpc_connect(struct aki_rpc *rpc, struct aki_event_loop *loop, str *addr, s32 port) +{ + if (!aki_packet_stream_init(&rpc->stream, rpc->type, connection_callback, NULL, NULL, NULL, rpc)) { + return false; + } + aki_packet_stream_set_no_delay(&rpc->stream, true); + aki_packet_stream_connect(&rpc->stream, loop, addr, port); + return true; +} + +struct aki_packet *aki_rpc_get_packet(struct aki_rpc *rpc, s8 op) +{ + struct aki_packet *packet = aki_packet_create(); + aki_packet_write_s8(packet, op); + aki_packet_write_u32(packet, rpc->id); + rpc->id = al_u32_inc_wrap(rpc->id); + return packet; +} + +void aki_rpc_disconnect(struct aki_rpc *rpc) +{ + aki_packet_stream_disconnect(&rpc->stream); +} + +void aki_rpc_free(struct aki_rpc *rpc) +{ + aki_packet_stream_free(&rpc->stream); + struct aki_rpc_connection *conn; + al_array_foreach(rpc->connections, i, conn) { + al_array_free(conn->callbacks); + al_free(conn); + } + al_array_free(rpc->connections); + al_array_free(rpc->commands); +} + +#define get_packet_id(p) \ + *((u32 *)aki_buffer_get_ptr(&p->buffer, AKI_PACKET_HEADER_LENGTH + sizeof(s8))) + +void aki_rpc_connection_command(struct aki_rpc_connection *conn, struct aki_packet *packet, + void (*callback)(void *, struct aki_packet *), void *userdata) +{ + if (callback) { + al_array_push(conn->callbacks, ((struct aki_rpc_callback){ + .id = get_packet_id(packet), + .callback = callback, + .userdata = userdata + })); + } + aki_packet_stream_send_packet(conn->stream, packet); +} diff --git a/src/rpc2.h b/src/rpc2.h new file mode 100644 index 0000000..482ad56 --- /dev/null +++ b/src/rpc2.h @@ -0,0 +1,49 @@ +#pragma once + +#include <al/array.h> + +#include "util/packet.h" + +#include "packet_stream.h" + +struct aki_rpc_callback { + u32 id; + void (*callback)(void *, struct aki_packet *); + void *userdata; +}; + +struct aki_rpc_connection { + struct aki_rpc *rpc; + struct aki_packet_stream *stream; + array(struct aki_rpc_callback) callbacks; +}; + +struct aki_rpc_command { + s8 op; + bool (*callback)(void *, struct aki_rpc_connection *, struct aki_packet *, struct aki_packet *); + void *userdata; +}; + +struct aki_rpc { + u8 type; + struct aki_packet_stream stream; + array(struct aki_rpc_command) commands; + array(struct aki_rpc_connection *) connections; + u32 id; + void (*connection_callback)(void *, struct aki_rpc_connection *); + void (*connection_closed_callback)(void *, struct aki_rpc_connection *); + void *userdata; +}; + +bool aki_rpc_init(struct aki_rpc *rpc, u8 type, + void (*connection_callback)(void *, struct aki_rpc_connection *), + void (*connection_closed_callback)(void *, struct aki_rpc_connection *), void *userdata); +void aki_rpc_add_command(struct aki_rpc *rpc, struct aki_rpc_command *command); +bool aki_rpc_listen(struct aki_rpc *rpc, struct aki_event_loop *loop, str *addr, s32 port); +bool aki_rpc_connect(struct aki_rpc *rpc, struct aki_event_loop *loop, str *addr, s32 port); +struct aki_packet *aki_rpc_get_packet(struct aki_rpc *rpc, s8 op); +void aki_rpc_disconnect(struct aki_rpc *rpc); +void aki_rpc_free(struct aki_rpc *rpc); + +void aki_rpc_connection_command(struct aki_rpc_connection *conn, struct aki_packet *packet, + void (*callback)(void *, struct aki_packet *), void *userdata); diff --git a/src/signal.c b/src/signal.c new file mode 100644 index 0000000..0bc15b8 --- /dev/null +++ b/src/signal.c @@ -0,0 +1,33 @@ +#include "signal.h" + +static void signal_callback(struct ev_loop *loop, ev_async *w, s32 revents) +{ + (void)loop; + struct aki_signal *signal = (struct aki_signal *)w->data; + (void)revents; + signal->callback(signal->userdata); +} + +void aki_signal_init(struct aki_signal *signal, void (*callback)(void *), void *userdata) +{ + signal->callback = callback; + signal->userdata = userdata; + signal->signal.data = signal; + ev_async_init(&signal->signal, signal_callback); +} + +void aki_signal_start(struct aki_signal *signal, struct aki_event_loop *loop) +{ + signal->loop = loop; + ev_async_start(loop->ev, &signal->signal); +} + +void aki_signal_send(struct aki_signal *signal) +{ + ev_async_send(signal->loop->ev, &signal->signal); +} + +void aki_signal_stop(struct aki_signal *signal) +{ + ev_async_stop(signal->loop->ev, &signal->signal); +} diff --git a/src/signal.h b/src/signal.h new file mode 100644 index 0000000..46bbbdb --- /dev/null +++ b/src/signal.h @@ -0,0 +1,15 @@ +#pragma once + +#include "loop.h" + +struct aki_signal { + ev_async signal; + struct aki_event_loop *loop; + void (*callback)(void *); + void *userdata; +}; + +void aki_signal_init(struct aki_signal *signal, void (*callback)(void *), void *userdata); +void aki_signal_start(struct aki_signal *signal, struct aki_event_loop *loop); +void aki_signal_send(struct aki_signal *signal); +void aki_signal_stop(struct aki_signal *signal); diff --git a/src/socket/socket.h b/src/socket/socket.h new file mode 100644 index 0000000..ea307e7 --- /dev/null +++ b/src/socket/socket.h @@ -0,0 +1,66 @@ +#pragma once + +#ifndef _WIN32 +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <netinet/in.h> +#include <sys/un.h> +#else +#include "../winwrap.h" +#endif + +#include <al/types.h> +#include <al/str.h> + +enum { + AKI_SOCKET_TCP = 0, + AKI_SOCKET_UDP, + AKI_SOCKET_UNIX +}; + +struct aki_socket { + u8 type; + struct { + bool blocking; + bool no_delay; + } config; +#ifndef _WIN32 + s32 sock; + struct sockaddr_in addr_in; + struct sockaddr_un addr_un; +#else + SOCKET sock; + SOCKADDR_IN addr_in; +#endif +}; + +#ifndef _WIN32 +#define aki_read read +#else +#define aki_read _read +#endif + +#ifndef _WIN32 +#define aki_write write +#else +#define aki_write _write +#endif + +bool aki_socket_init(struct aki_socket *s); + +void aki_socket_set_blocking(struct aki_socket *s, bool blocking); +void aki_socket_set_no_delay(struct aki_socket *s, bool no_delay); + +bool aki_socket_listen(struct aki_socket *s, str *addr, s32 port); +bool aki_socket_accept(struct aki_socket *s, struct aki_socket *c); +bool aki_socket_connect(struct aki_socket *s, str *addr, s32 port); + +s32 aki_socket_get_fd(struct aki_socket *s); + +ssize_t aki_socket_read(struct aki_socket *s, void *buf, size_t size); +ssize_t aki_socket_write(struct aki_socket *s, void *buf, size_t size); +ssize_t aki_socket_sendto(struct aki_socket *s, void *buf, size_t size); + +void aki_socket_shutdown(struct aki_socket *s); +void aki_socket_close(struct aki_socket *s); diff --git a/src/socket/socket_linux.c b/src/socket/socket_linux.c new file mode 100644 index 0000000..b466dea --- /dev/null +++ b/src/socket/socket_linux.c @@ -0,0 +1,259 @@ +#include <unistd.h> +#include <sys/fcntl.h> +#include <netinet/tcp.h> +#include <netdb.h> +#include <signal.h> +#include <al/log.h> + +#include "../util/error.h" + +#include "socket.h" + +static void socket_set_blocking(struct aki_socket *s, bool blocking) +{ + s32 flags = fcntl(s->sock, F_GETFL, 0); + al_assert(flags != -1); + flags = blocking ? (flags & ~O_NONBLOCK) : (flags | O_NONBLOCK); + s32 ret = fcntl(s->sock, F_SETFL, flags); + al_assert(ret == 0); +} + +static void socket_set_no_delay(struct aki_socket *s, s32 no_delay) +{ + if (s->type == AKI_SOCKET_TCP) { + setsockopt(s->sock, IPPROTO_TCP, TCP_NODELAY, &no_delay, sizeof(no_delay)); + } +} + +static void socket_set_send_buf(struct aki_socket *s, u32 sndbuf) +{ + u32 send_queue_size = sndbuf; + setsockopt(s->sock, SOL_SOCKET, SO_SNDBUF, &send_queue_size, sizeof(send_queue_size)); + + socklen_t optlen = sizeof(send_queue_size); + getsockopt(s->sock, SOL_SOCKET, SO_SNDBUF, &send_queue_size, &optlen); + + if (send_queue_size != sndbuf * 2) { + al_log_warn("socket", "Failed to set SO_SNDBUF."); + } +} + +static void socket_set_recv_buf(struct aki_socket *s, u32 rcvbuf) +{ + u32 receive_queue_size = rcvbuf; + setsockopt(s->sock, SOL_SOCKET, SO_RCVBUF, &receive_queue_size, sizeof(receive_queue_size)); + + socklen_t optlen = sizeof(receive_queue_size); + getsockopt(s->sock, SOL_SOCKET, SO_RCVBUF, &receive_queue_size, &optlen); + + if (receive_queue_size != rcvbuf * 2) { + al_log_warn("socket", "Failed to set SO_RCVBUF."); + } +} + +bool aki_socket_init(struct aki_socket *s) +{ + switch (s->type) { + case AKI_SOCKET_TCP: + s->sock = socket(AF_INET, SOCK_STREAM, 0); + break; + case AKI_SOCKET_UDP: + s->sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + break; + case AKI_SOCKET_UNIX: + s->sock = socket(AF_UNIX, SOCK_STREAM, 0); + break; + } + + if (s->sock < 0) { + al_log_error("socket", "Failed to create socket."); + return false; + } + + aki_socket_set_blocking(s, s->config.blocking); + aki_socket_set_no_delay(s, s->config.no_delay); + + return true; +} + +void aki_socket_set_blocking(struct aki_socket *s, bool blocking) +{ + s->config.blocking = blocking; + socket_set_blocking(s, blocking); +} + +void aki_socket_set_no_delay(struct aki_socket *s, bool no_delay) +{ + s->config.no_delay = no_delay; + socket_set_no_delay(s, no_delay); +} + +bool aki_socket_accept(struct aki_socket *s, struct aki_socket *c) +{ + c->type = s->type; + + struct sockaddr_storage addr; + socklen_t len = sizeof(addr); + if((c->sock = accept(s->sock, (struct sockaddr *)&addr, &len)) == -1) { + return false; + } + + aki_socket_set_blocking(c, c->config.blocking); + aki_socket_set_no_delay(c, c->config.no_delay); + + switch (s->type) { + case AKI_SOCKET_TCP: { + s32 port = 0; + char ipstr[INET6_ADDRSTRLEN] = {0}; + if (addr.ss_family == AF_INET) { + struct sockaddr_in *s = (struct sockaddr_in *)&addr; + port = ntohs(s->sin_port); + inet_ntop(AF_INET, &s->sin_addr, ipstr, sizeof(ipstr)); + } else if (addr.ss_family == AF_INET6) { + struct sockaddr_in6 *s = (struct sockaddr_in6 *)&addr; + port = ntohs(s->sin6_port); + inet_ntop(AF_INET6, &s->sin6_addr, ipstr, sizeof(ipstr)); + } + al_log_info("socket", "Connection from %s:%d.", ipstr, port); + break; + } + case AKI_SOCKET_UNIX: { + al_log_info("socket", "Connection from a UNIX socket."); + break; + } + case AKI_SOCKET_UDP: { + al_assert(false); + } + } + + return true; +} + +bool aki_socket_listen(struct aki_socket *s, str *addr, s32 port) +{ + struct sockaddr *saddr = NULL; + socklen_t addrlen = 0; + + switch (s->type) { + case AKI_SOCKET_TCP: { + s->addr_in.sin_family = AF_INET; + s->addr_in.sin_addr.s_addr = htonl(INADDR_ANY); + s->addr_in.sin_port = htons(port); + saddr = (struct sockaddr *)&s->addr_in; + addrlen = sizeof(s->addr_in); + break; + } + case AKI_SOCKET_UNIX: { + char *c_str = al_str_to_c_str(addr); + s->addr_un.sun_family = AF_UNIX; + size_t len = al_strlen(c_str); + al_memcpy(s->addr_un.sun_path, c_str, len); + s->addr_un.sun_path[len] = '\0'; + al_free(c_str); + saddr = (struct sockaddr *)&s->addr_un; + addrlen = sizeof(s->addr_un); + break; + } + case AKI_SOCKET_UDP: { + al_assert(false); + } + } + + if (bind(s->sock, saddr, addrlen) < 0) { + al_log_error("socket", "Failed to bind (%.*s:%d).", AL_STR_PRINTF(addr), port); + return false; + } + + if (listen(s->sock, SOMAXCONN) < 0) { + al_log_error("socket", "Failed to listen (%.*s:%d).", AL_STR_PRINTF(addr), port); + return false; + } + + al_log_info("socket", "Listening on %.*s:%d.", AL_STR_PRINTF(addr), port); + + signal(SIGPIPE, SIG_IGN); + + return true; +} + +bool aki_socket_connect(struct aki_socket *s, str *addr, s32 port) +{ + switch (s->type) { + case AKI_SOCKET_TCP: { + char *c_str = al_str_to_c_str(addr); + struct hostent *hptr = gethostbyname(c_str); + al_free(c_str); + + if (!hptr) { + al_log_error("socket", "Failed to parse address."); + return false; + } + + if (hptr->h_addrtype != AF_INET) { + al_log_error("socket", "Bad address family."); + return false; + } + + s->addr_in.sin_family = AF_INET; + s->addr_in.sin_addr.s_addr = ((struct in_addr *)hptr->h_addr_list[0])->s_addr; + s->addr_in.sin_port = htons(port); + + s32 ret = connect(s->sock, (struct sockaddr *)&s->addr_in, sizeof(s->addr_in)); + + if (ret != 0 && errno != 115) { + al_log_error("socket", "Failed to connect: %s (%d).", aki_strerror(errno), errno); + return false; + } + + break; + } + case AKI_SOCKET_UNIX: { + s->addr_un.sun_family = AF_UNIX; + al_memcpy(s->addr_un.sun_path, addr->data, addr->len); + s->addr_un.sun_path[addr->len] = '\0'; + if (connect(s->sock, (struct sockaddr *)&s->addr_un, sizeof(s->addr_un)) < 0) { + al_log_error("socket", "Failed to connect: %s (%d).", aki_strerror(errno), errno); + return false; + } + break; + } + case AKI_SOCKET_UDP: { + al_assert(false); + } + } + + signal(SIGPIPE, SIG_IGN); + + return true; +} + +ssize_t aki_socket_read(struct aki_socket *s, void *buf, size_t size) +{ + return recv(s->sock, buf, size, 0); +} + +ssize_t aki_socket_write(struct aki_socket *s, void *buf, size_t size) +{ + return send(s->sock, buf, size, MSG_NOSIGNAL); +} + +ssize_t aki_socket_sendto(struct aki_socket *s, void *buf, size_t size) +{ + return sendto(s->sock, buf, size, 0, (const struct sockaddr *)&s->addr_un, sizeof(s->addr_un)); +} + +s32 aki_socket_get_fd(struct aki_socket *s) +{ + return s->sock; +} + +void aki_socket_shutdown(struct aki_socket *s) +{ + shutdown(s->sock, SHUT_RDWR); +} + +void aki_socket_close(struct aki_socket *s) +{ + close(s->sock); +} + diff --git a/src/socket/socket_windows.c b/src/socket/socket_windows.c new file mode 100644 index 0000000..6e72aea --- /dev/null +++ b/src/socket/socket_windows.c @@ -0,0 +1,130 @@ +#include <al/log.h> + +#include "socket.h" + +static void socket_set_blocking(struct aki_socket *s, bool blocking) +{ + u_long mode = (blocking) ? 0 : 1; + ioctlsocket(s->sock, FIONBIO, &mode); +} + +static void socket_set_no_delay(struct aki_socket *s, s32 no_delay) +{ + (void)s; + (void)no_delay; +} + +bool aki_socket_init(struct aki_socket *s) +{ + switch (s->type) { + case AKI_SOCKET_TCP: + s->sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + break; + case AKI_SOCKET_UDP: + al_assert(false); + return false; + case AKI_SOCKET_UNIX: + al_assert(false); + return false; + } + + if (s->sock == INVALID_SOCKET) { + al_log_error("socket", "Failed to create socket."); + return false; + } + + aki_socket_set_blocking(s, s->config.blocking); + aki_socket_set_no_delay(s, s->config.no_delay); + + return true; +} + +void aki_socket_set_blocking(struct aki_socket *s, bool blocking) +{ + s->config.blocking = blocking; + socket_set_blocking(s, blocking); +} + +void aki_socket_set_no_delay(struct aki_socket *s, bool no_delay) +{ + s->config.no_delay = no_delay; + socket_set_no_delay(s, no_delay); +} + +bool aki_socket_listen(struct aki_socket *s, str *addr, s32 port) +{ + s->addr_in.sin_family = AF_INET; + s->addr_in.sin_addr.s_addr = INADDR_ANY; + s->addr_in.sin_port = htons(port); + al_memset(&(s->addr_in.sin_zero), '\0', 8); + if (bind(s->sock, (SOCKADDR *)&s->addr_in, sizeof(s->addr_in)) == SOCKET_ERROR) { + al_log_error("socket", "Failed to bind (%.*s:%d).", AL_STR_PRINTF(addr), port); + return false; + } + if (listen(s->sock, SOMAXCONN) == SOCKET_ERROR) { + al_log_error("socket", "Failed to listen (%.*s:%d).", AL_STR_PRINTF(addr), port); + return false; + } + return true; +} + +bool aki_socket_accept(struct aki_socket *s, struct aki_socket *c) +{ + c->type = s->type; + + if ((c->sock = accept(s->sock, NULL, NULL)) == INVALID_SOCKET) { + return false; + } + + aki_socket_set_blocking(c, c->config.blocking); + aki_socket_set_no_delay(c, c->config.no_delay); + + return true; +} + +bool aki_socket_connect(struct aki_socket *s, str *addr, s32 port) +{ + s->addr_in.sin_family = AF_INET; + char *c_str = al_str_to_c_str(addr); + InetPton(AF_INET, c_str, &s->addr_in.sin_addr.s_addr); + al_free(c_str); + s->addr_in.sin_port = htons(port); + al_memset(&(s->addr_in.sin_zero), '\0', 8); + if (connect(s->sock, (SOCKADDR *)&s->addr_in, sizeof(s->addr_in)) == SOCKET_ERROR) { + return false; + } + return true; +} + +s32 aki_socket_get_fd(struct aki_socket *s) +{ + return _open_osfhandle(s->sock, 0); +} + +ssize_t aki_socket_read(struct aki_socket *s, void *buf, size_t size) +{ + return recv(s->sock, buf, (s32)size, 0); +} + +ssize_t aki_socket_write(struct aki_socket *s, void *buf, size_t size) +{ + return send(s->sock, buf, (s32)size, 0); +} + +ssize_t aki_socket_sendto(struct aki_socket *s, void *buf, size_t size) +{ + (void)s; + (void)buf; + (void)size; + return 0; +} + +void aki_socket_shutdown(struct aki_socket *s) +{ + if (shutdown(s->sock, SD_SEND) == SOCKET_ERROR) {} +} + +void aki_socket_close(struct aki_socket *s) +{ + closesocket(s->sock); +} diff --git a/src/timer.c b/src/timer.c new file mode 100644 index 0000000..e730ad5 --- /dev/null +++ b/src/timer.c @@ -0,0 +1,25 @@ +#include "timer.h" + +static void timer_callback(struct ev_loop *loop, ev_timer *w, s32 revents) +{ + (void)loop; + struct aki_timer *timer = (struct aki_timer *)w->data; + (void)revents; + timer->callback(timer->userdata, timer); +} + +void aki_timer_init(struct aki_timer *timer, struct aki_event_loop *loop, + aki_os_tstamp repeat, void (*callback)(void *, struct aki_timer *), void *userdata) +{ + timer->loop = loop; + timer->callback = callback; + timer->userdata = userdata; + timer->timer.data = timer; + timer->timer.repeat = repeat; + ev_init(&timer->timer, timer_callback); +} + +void aki_timer_again(struct aki_timer *timer) +{ + ev_timer_again(timer->loop->ev, &timer->timer); +} diff --git a/src/timer.h b/src/timer.h new file mode 100644 index 0000000..03b2f43 --- /dev/null +++ b/src/timer.h @@ -0,0 +1,17 @@ +#pragma once + +#include "util/thread/thread.h" + +#include "evwrap.h" +#include "loop.h" + +struct aki_timer { + ev_timer timer; + struct aki_event_loop *loop; + void (*callback)(void *, struct aki_timer *); + void *userdata; +}; + +void aki_timer_init(struct aki_timer *timer, struct aki_event_loop *loop, + aki_os_tstamp repeat, void (*callback)(void *, struct aki_timer *), void *userdata); +void aki_timer_again(struct aki_timer *timer); diff --git a/src/util/buffer.c b/src/util/buffer.c new file mode 100644 index 0000000..26e242c --- /dev/null +++ b/src/util/buffer.c @@ -0,0 +1,42 @@ +#include "buffer.h" + +#define INITIAL_SIZE 128 + +void aki_buffer_ensure_size(struct aki_buffer *buf, size_t size) +{ + if (buf->alloc >= size) return; + if (size < INITIAL_SIZE) buf->alloc = INITIAL_SIZE; + else buf->alloc = al_next_power_of_two(size); + buf->data = buf->data ? al_realloc(buf->data, buf->alloc) : al_malloc(buf->alloc); +} + +void aki_buffer_init(struct aki_buffer *buf) +{ + buf->data = NULL; + buf->size = 0; + buf->alloc = 0; +} + +void aki_buffer_write(struct aki_buffer *buf, void *data, size_t index, size_t size) +{ + size_t reach = index + size; + aki_buffer_ensure_size(buf, reach); + if (reach > buf->size) buf->size = reach; + al_memcpy(&buf->data[index], data, size); +} + +u8 *aki_buffer_get_ptr(struct aki_buffer *buf, size_t index) +{ + return &buf->data[index]; +} + +void aki_buffer_read(struct aki_buffer *buf, void *ptr, size_t index, size_t size) +{ + al_assert(index + size <= buf->size); + al_memcpy(ptr, &buf->data[index], size); +} + +void aki_buffer_free(struct aki_buffer *buf) +{ + if (buf->data && buf->alloc > 0) al_free(buf->data); +} diff --git a/src/util/buffer.h b/src/util/buffer.h new file mode 100644 index 0000000..3c40b3a --- /dev/null +++ b/src/util/buffer.h @@ -0,0 +1,17 @@ +#pragma once + +#include <al/types.h> +#include <al/lib.h> + +struct aki_buffer { + u8 *data; + size_t size; + size_t alloc; +}; + +void aki_buffer_init(struct aki_buffer *buf); +void aki_buffer_ensure_size(struct aki_buffer *buf, size_t size); +void aki_buffer_write(struct aki_buffer *buf, void *data, size_t index, size_t size); +u8 *aki_buffer_get_ptr(struct aki_buffer *buf, size_t index); +void aki_buffer_read(struct aki_buffer *buf, void *ptr, size_t index, size_t size); +void aki_buffer_free(struct aki_buffer *buf); diff --git a/src/util/error.c b/src/util/error.c new file mode 100644 index 0000000..f055416 --- /dev/null +++ b/src/util/error.c @@ -0,0 +1,7 @@ +#include "error.h" + +#ifndef _WIN32 +__thread char errorbuf[ERROR_STR_MAXLEN]; +#else +__declspec(thread) char errorbuf[ERROR_STR_MAXLEN]; +#endif diff --git a/src/util/error.h b/src/util/error.h new file mode 100644 index 0000000..d014faa --- /dev/null +++ b/src/util/error.h @@ -0,0 +1,21 @@ +#include <al/lib.h> + +#include <errno.h> + +#define ERROR_STR_MAXLEN 94 + +#ifndef _WIN32 +extern __thread char errorbuf[ERROR_STR_MAXLEN]; +#else +extern __declspec(thread) char errorbuf[ERROR_STR_MAXLEN]; +#endif + +static inline char *aki_strerror(s32 errnum) +{ +#ifndef _WIN32 + strerror_r(errnum, errorbuf, ERROR_STR_MAXLEN); +#else + strerror_s(errorbuf, ERROR_STR_MAXLEN, errnum); +#endif + return errorbuf; +} diff --git a/src/util/file/file.c b/src/util/file/file.c new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/src/util/file/file.c diff --git a/src/util/file/file.h b/src/util/file/file.h new file mode 100644 index 0000000..465d76a --- /dev/null +++ b/src/util/file/file.h @@ -0,0 +1,82 @@ +#pragma once + +#ifdef AKIYO_FILE_STDIO_COMPAT +#include <stdio.h> +#else +#ifndef _WIN32 +#include <dirent.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/stat.h> +#include <sys/stat.h> +#include <sys/mman.h> +#endif +#endif + +#include <al/str.h> + +enum { + AKI_ENTRY_FILE = 0, + AKI_ENTRY_DIR, + AKI_ENTRY_OTHER +}; + +struct aki_file { +#ifdef AKIYO_FILE_STDIO_COMPAT + FILE *file; +#else +#ifndef _WIN32 + s32 fd; +#else + // WINDOWS +#endif +#endif + size_t filesize; +}; + +struct aki_dir { +#ifdef AKIYO_FILE_STDIO_COMPAT +#else +#ifndef _WIN32 + DIR *dir; +#else + // WINDOWS +#endif +#endif + str path; +}; + +struct aki_dir_entry { + u8 type; +#ifdef AKIYO_FILE_STDIO_COMPAT +#else +#ifndef _WIN32 + struct dirent *entry; +#else + // WINDOWS +#endif +#endif + str name; + str path; +}; + +bool aki_file_open(struct aki_file *file, str *path, bool create); +bool aki_file_exists(str *path); +bool aki_file_truncate(struct aki_file *file, off_t size); +off_t aki_file_seek(struct aki_file *file, off_t offset, s32 whence); +size_t aki_file_get_filesize(struct aki_file *file); +bool aki_file_write(struct aki_file *file, void *buf, size_t size); +bool aki_file_read(struct aki_file *file, void *buf, size_t size); +s32 aki_file_read_as_str(struct aki_file *file, str *out); +s32 aki_file_read_as_c_str(struct aki_file *file, char **out); +void *aki_file_mmap(struct aki_file *file); +void *aki_file_mremap(struct aki_file *file, size_t size, void *old_map); +void aki_file_munmap(struct aki_file *file, void *map); +void aki_file_close(struct aki_file *file); + +bool aki_dir_open(struct aki_dir *dir, str *path); +void aki_dir_close(struct aki_dir *dir); +bool aki_dir_exists(str *path); +bool aki_dir_create(str *path); +bool aki_dir_read(struct aki_dir *dir, struct aki_dir_entry *entry); +void aki_dir_entry_free(struct aki_dir_entry *entry); diff --git a/src/util/file/file_linux.c b/src/util/file/file_linux.c new file mode 100644 index 0000000..97e9688 --- /dev/null +++ b/src/util/file/file_linux.c @@ -0,0 +1,203 @@ +#include <sys/mman.h> +#include <al/log.h> + +#include "../error.h" + +#include "file.h" + +bool aki_file_open(struct aki_file *file, str *path, bool create) +{ + char *c_str = al_str_to_c_str(path); + s32 flags = O_RDWR; + if (create) flags |= O_CREAT; + file->fd = open(c_str, flags, 0666); + al_free(c_str); + if (file->fd == -1) { + al_log_error("file", "open(%.*s) failed (%s).", AL_STR_PRINTF(path), aki_strerror(errno)); + return false; + } + struct stat sb; + s32 res = fstat(file->fd, &sb); + if (res == -1) { + al_log_error("file", "fstat() failed (%s).", aki_strerror(errno)); + close(file->fd); + return false; + } + file->filesize = sb.st_size; + return true; +} + +bool aki_file_exists(str *path) +{ + char *c_str = al_str_to_c_str(path); + s32 ret = access(c_str, F_OK); + al_free(c_str); + if (ret != 0) { + al_log_error("file", "access(%.*s, F_OK) failed (%s).", AL_STR_PRINTF(path), aki_strerror(errno)); + } + return ret == 0; +} + +off_t aki_file_seek(struct aki_file *file, off_t offset, s32 whence) +{ + off_t res = lseek(file->fd, offset, whence); + if (res == (off_t)-1) { + al_log_error("file", "lseek(%jd, %d) failed (%s).", (intmax_t)offset, whence, aki_strerror(errno)); + } + return res; +} + +bool aki_file_truncate(struct aki_file *file, off_t size) +{ + s32 ret = ftruncate(file->fd, size); + if (ret != 0) { + al_log_error("file", "ftruncate(%jd) failed (%s).", (intmax_t)size, aki_strerror(errno)); + return false; + } + file->filesize = size; + return true; +} + +size_t aki_file_get_filesize(struct aki_file *file) +{ + return file->filesize; +} + +#define file_io_loop(call, fail_case) \ + size_t bc = 0; \ + ssize_t res; \ + do { \ + res = call(file->fd, buf, size - bc); \ + if (fail_case) { \ + al_log_error("file", ""#call"() failed (%s).", aki_strerror(errno)); \ + return false; \ + } \ + bc += res; \ + } while (bc < size); \ + return true + +bool aki_file_write(struct aki_file *file, void *buf, size_t size) +{ + file_io_loop(write, (res == -1)); +} + +bool aki_file_read(struct aki_file *file, void *buf, size_t size) +{ + file_io_loop(read, (res == -1)); +} + +void *aki_file_mmap(struct aki_file *file) +{ + void *map = mmap(NULL, file->filesize, PROT_READ | PROT_WRITE, MAP_SHARED, file->fd, 0L); + if (map == MAP_FAILED) { + al_log_error("file", "mmap() failed (%s).", aki_strerror(errno)); + return NULL; + } + return map; +} + +void *aki_file_mremap(struct aki_file *file, size_t size, void *old_map) +{ + printf("old_size: %zu, new_size: %zu\n", file->filesize, size); + void *map = mremap(old_map, file->filesize, size, MREMAP_MAYMOVE); + if (map == MAP_FAILED) { + al_log_error("file", "mremap(%p, %zu, %zu) failed (%s).", old_map, + file->filesize, size, aki_strerror(errno)); + return NULL; + } + return map; +} + +void aki_file_munmap(struct aki_file *file, void *map) +{ + s32 ret = munmap(map, file->filesize); + if (ret != 0) { + al_log_error("file", "munmap(%p, %zu) failed (%s).", map, file->filesize, aki_strerror(errno)); + } +} + +void aki_file_close(struct aki_file *file) +{ + close(file->fd); +} + +bool aki_dir_open(struct aki_dir *dir, str *path) +{ + char *c_str = al_str_to_c_str(path); + dir->dir = opendir(c_str); + al_free(c_str); + if (!dir->dir) { + al_log_error("file", "opendir(%.*s) failed (%s).", AL_STR_PRINTF(path), aki_strerror(errno)); + return false; + } + al_str_clone(&dir->path, path); + return true; +} + +void aki_dir_close(struct aki_dir *dir) +{ + al_str_free(&dir->path); + closedir(dir->dir); +} + +bool aki_dir_exists(str *path) +{ + struct aki_dir dir; + char *c_str = al_str_to_c_str(path); + dir.dir = opendir(c_str); + al_free(c_str); + if (!dir.dir) { + if (errno != ENOENT) { + al_log_error("file", "opendir(%.*s) failed (%s).", AL_STR_PRINTF(path), aki_strerror(errno)); + } + return false; + } + return true; +} + +bool aki_dir_create(str *path) +{ + char *c_str = al_str_to_c_str(path); + s32 ret = mkdir(c_str, 0700); + al_free(c_str); + if (ret == -1) { + al_log_error("file", "mkdir(%.*s) failed (%s).", AL_STR_PRINTF(path), aki_strerror(errno)); + return false; + } + return true; +} + +bool aki_dir_read(struct aki_dir *dir, struct aki_dir_entry *entry) +{ + errno = 0; + entry->entry = readdir(dir->dir); + if (!entry->entry) { + if (errno) { + al_log_error("file", "readdir() failed (%s).", aki_strerror(errno)); + } + return false; + } + switch (entry->entry->d_type) { + case DT_REG: + case DT_UNKNOWN: + entry->type = AKI_ENTRY_FILE; + break; + case DT_DIR: + entry->type = AKI_ENTRY_DIR; + break; + default: + entry->type = AKI_ENTRY_OTHER; + break; + } + al_str_clone(&entry->name, al_str_c(entry->entry->d_name)); + al_str_clone(&entry->path, &dir->path); + al_str_cat(&entry->path, al_str_c("/")); + al_str_cat(&entry->path, &entry->name); + return true; +} + +void aki_dir_entry_free(struct aki_dir_entry *entry) +{ + al_str_free(&entry->name); + al_str_free(&entry->path); +} diff --git a/src/util/file/file_stdio.c b/src/util/file/file_stdio.c new file mode 100644 index 0000000..52d8761 --- /dev/null +++ b/src/util/file/file_stdio.c @@ -0,0 +1,100 @@ +#include <al/log.h> + +#include "../error.h" + +#include "file.h" + +bool aki_file_open(struct aki_file *file, str *path, bool create) +{ + char *c_str = al_str_to_c_str(path); + const char *mode = create ? "wb+" : "rb+"; +#ifndef _WIN32 + file->file = fopen(c_str, mode); +#else + errno_t ret = fopen_s(&file->file, c_str, mode); +#endif + al_free(c_str); +#ifndef _WIN32 + if (!file->file) { +#else + if (ret != 0) { +#endif + al_log_error("file_stdio", "fopen(%.*s) failed (%s).", AL_STR_PRINTF(path), aki_strerror(errno)); + return false; + } + off_t pos = aki_file_seek(file, 0, SEEK_END); + if (pos == -1) { + aki_file_close(file); + return false; + } + file->filesize = pos; + rewind(file->file); + return true; +} + +bool aki_file_exists(str *path) +{ + (void)path; + return false; +} + +off_t aki_file_seek(struct aki_file *file, off_t offset, s32 whence) +{ + if (fseek(file->file, offset, whence) != 0) { + al_log_error("file_stdio", "fseek(%jd, %d) failed (%s).", (intmax_t)offset, + whence, aki_strerror(errno)); + return -1; + } + return ftell(file->file); +} + +bool aki_file_truncate(struct aki_file *file, off_t size) +{ + (void)file; + (void)size; + return true; +} + +size_t aki_file_get_filesize(struct aki_file *file) +{ + return file->filesize; +} + +bool aki_file_write(struct aki_file *file, void *buf, size_t size) +{ + size_t ret = fwrite(buf, size, 1, file->file); + if (ret == 0) { + al_log_error("file_stdio", "fwrite(%zu) failed (%s).", size, aki_strerror(errno)); + return false; + } + return true; +} + +bool aki_file_read(struct aki_file *file, void *buf, size_t size) +{ + size_t ret = fread(buf, size, 1, file->file); + if (ret == 0) { + al_log_error("file_stdio", "fread(%zu) failed (%s).", size, aki_strerror(errno)); + return false; + } + return true; +} + +void *aki_file_mmap(struct aki_file *file) +{ + (void)file; + al_assert(false); + return NULL; +} + +void aki_file_close(struct aki_file *file) +{ + fclose(file->file); +} + +bool aki_dir_open(struct aki_dir *dir, str *path) { (void)dir; (void)path; return false; } +void aki_dir_close(struct aki_dir *dir) { (void)dir; } +bool aki_dir_exists(str *path) { (void)path; return false; } +bool aki_dir_create(str *path) { (void)path; return false; } +bool aki_dir_read(struct aki_dir *dir, struct aki_dir_entry *entry) { (void)dir; (void)entry; return false; } +void aki_dir_entry_free(struct aki_dir_entry *entry) { (void)entry; } diff --git a/src/util/file/util.c b/src/util/file/util.c new file mode 100644 index 0000000..e893de7 --- /dev/null +++ b/src/util/file/util.c @@ -0,0 +1,25 @@ +#include "file.h" + +s32 aki_file_read_as_str(struct aki_file *file, str *out) +{ + size_t size = file->filesize; + al_str_sized(out, size); + if (!aki_file_read(file, (void *)out->data, size)) { + al_str_free(out); + return -1; + } + out->len = size; + return size; +} + +s32 aki_file_read_as_c_str(struct aki_file *file, char **out) +{ + size_t size = file->filesize; + *out = al_malloc(size + 1); + if (!aki_file_read(file, (void *)*out, size)) { + al_free(*out); + return -1; + } + (*out)[size] = '\n'; + return size; +} diff --git a/src/util/packet.c b/src/util/packet.c new file mode 100644 index 0000000..c58d656 --- /dev/null +++ b/src/util/packet.c @@ -0,0 +1,104 @@ +#include "packet.h" + +struct aki_packet *aki_packet_create(void) +{ + struct aki_packet *packet = (struct aki_packet *)al_malloc(sizeof(struct aki_packet)); + aki_buffer_init(&packet->buffer); + aki_packet_reset(packet); + return packet; +} + +struct aki_packet *aki_packet_clone(struct aki_packet *packet) +{ + struct aki_packet *c = aki_packet_create(); + aki_buffer_ensure_size(&c->buffer, packet->buffer.size); + al_memcpy(aki_buffer_get_ptr(&c->buffer, 0), aki_buffer_get_ptr(&packet->buffer, 0), packet->buffer.size); + c->windex = packet->windex; + c->rindex = packet->rindex; + return c; +} + +void aki_packet_reset(struct aki_packet *packet) +{ + aki_buffer_ensure_size(&packet->buffer, AKI_PACKET_HEADER_LENGTH); + packet->rindex = AKI_PACKET_HEADER_LENGTH; + packet->windex = AKI_PACKET_HEADER_LENGTH; +} + +void aki_packet_write_size(struct aki_packet *packet) +{ + *((u32 *)aki_buffer_get_ptr(&packet->buffer, 0)) = packet->windex; +} + +u32 aki_packet_size(struct aki_packet *packet) +{ + return *((u32 *)aki_buffer_get_ptr(&packet->buffer, 0)); +} + +#define DEFINE_PACKET_WRITE_FUNC(type) \ + void aki_packet_write_##type(struct aki_packet *packet, type v) \ + { \ + AKI_PACKET_WRITE_TYPE(packet, type, v); \ + } + +DEFINE_PACKET_WRITE_FUNC(u8) +DEFINE_PACKET_WRITE_FUNC(s8) +DEFINE_PACKET_WRITE_FUNC(u16) +DEFINE_PACKET_WRITE_FUNC(s16) +DEFINE_PACKET_WRITE_FUNC(u32) +DEFINE_PACKET_WRITE_FUNC(s32) +DEFINE_PACKET_WRITE_FUNC(u64) +DEFINE_PACKET_WRITE_FUNC(s64) +DEFINE_PACKET_WRITE_FUNC(f32) +DEFINE_PACKET_WRITE_FUNC(f64) + +void aki_packet_write_string(struct aki_packet *packet, str *s) +{ + AKI_PACKET_WRITE_TYPE(packet, u32, s->len); + AKI_PACKET_WRITE_DATA(packet, s->data, s->len); +} + +void aki_packet_write_buffer(struct aki_packet *packet, struct aki_buffer *buf) +{ + AKI_PACKET_WRITE_TYPE(packet, size_t, buf->size); + AKI_PACKET_WRITE_DATA(packet, aki_buffer_get_ptr(buf, 0), buf->size); +} + +#define DEFINE_PACKET_READ_FUNC(type) \ + type aki_packet_read_##type(struct aki_packet *packet) \ + { \ + type r; \ + AKI_PACKET_READ_TYPE(packet, type, r); \ + return r; \ + } + +DEFINE_PACKET_READ_FUNC(u8) +DEFINE_PACKET_READ_FUNC(s8) +DEFINE_PACKET_READ_FUNC(u16) +DEFINE_PACKET_READ_FUNC(s16) +DEFINE_PACKET_READ_FUNC(u32) +DEFINE_PACKET_READ_FUNC(s32) +DEFINE_PACKET_READ_FUNC(u64) +DEFINE_PACKET_READ_FUNC(s64) +DEFINE_PACKET_READ_FUNC(f32) +DEFINE_PACKET_READ_FUNC(f64) + +void aki_packet_read_string(struct aki_packet *packet, str *s) +{ + AKI_PACKET_READ_TYPE(packet, u32, s->len); + AKI_PACKET_READ_DATA(packet, s->len, s->data); + s->alloc = 0; +} + +void aki_packet_read_buffer(struct aki_packet *packet, struct aki_buffer *buf) +{ + AKI_PACKET_READ_TYPE(packet, size_t, buf->size); + AKI_PACKET_READ_DATA(packet, buf->size, buf->data); + buf->alloc = 0; +} + +void aki_packet_free(struct aki_packet *packet) +{ + aki_buffer_free(&packet->buffer); + al_free(packet); +} diff --git a/src/util/packet.h b/src/util/packet.h new file mode 100644 index 0000000..14acf68 --- /dev/null +++ b/src/util/packet.h @@ -0,0 +1,65 @@ +#pragma once + +#include <al/types.h> +#include <al/str.h> +#include <al/array.h> + +#include "../util/buffer.h" + +#define AKI_PACKET_HEADER_LENGTH (u32)(sizeof(u32)) + +struct aki_packet { + struct aki_buffer buffer; + u32 rindex; + u32 windex; + void *userdata; +}; + +#define AKI_PACKET_WRITE_TYPE(p, type, v) \ + aki_buffer_write(&(p)->buffer, &(v), (p)->windex, sizeof(type)); \ + (p)->windex += (u32)sizeof(type) + +#define AKI_PACKET_WRITE_DATA(p, data, len) \ + aki_buffer_write(&(p)->buffer, (data), (p)->windex, (len)); \ + (p)->windex += (u32)len + +#define AKI_PACKET_READ_TYPE(p, type, r) \ + r = *((type *)aki_buffer_get_ptr(&(p)->buffer, (p)->rindex)); \ + (p)->rindex += (u32)sizeof(type); + +#define AKI_PACKET_READ_DATA(p, len, r) \ + r = (void *)aki_buffer_get_ptr(&(p)->buffer, (p)->rindex); \ + (p)->rindex += (u32)len; + +struct aki_packet *aki_packet_create(void); +struct aki_packet *aki_packet_clone(struct aki_packet *packet); +void aki_packet_reset(struct aki_packet *packet); + +void aki_packet_write_size(struct aki_packet *packet); +u32 aki_packet_size(struct aki_packet *packet); + +void aki_packet_write_s8(struct aki_packet *packet, s8 v); +void aki_packet_write_u8(struct aki_packet *packet, u8 v); +void aki_packet_write_s16(struct aki_packet *packet, s16 v); +void aki_packet_write_u16(struct aki_packet *packet, u16 v); +void aki_packet_write_s32(struct aki_packet *packet, s32 v); +void aki_packet_write_u32(struct aki_packet *packet, u32 v); +void aki_packet_write_s64(struct aki_packet *packet, s64 v); +void aki_packet_write_u64(struct aki_packet *packet, u64 v); +void aki_packet_write_f32(struct aki_packet *packet, f32 v); +void aki_packet_write_string(struct aki_packet *packet, str *s); +void aki_packet_write_buffer(struct aki_packet *packet, struct aki_buffer *buf); + +s8 aki_packet_read_s8(struct aki_packet *packet); +u8 aki_packet_read_u8(struct aki_packet *packet); +s16 aki_packet_read_s16(struct aki_packet *packet); +u16 aki_packet_read_u16(struct aki_packet *packet); +s32 aki_packet_read_s32(struct aki_packet *packet); +u32 aki_packet_read_u32(struct aki_packet *packet); +s64 aki_packet_read_s64(struct aki_packet *packet); +u64 aki_packet_read_u64(struct aki_packet *packet); +f32 aki_packet_read_f32(struct aki_packet *packet); +void aki_packet_read_string(struct aki_packet *packet, str *s); +void aki_packet_read_buffer(struct aki_packet *packet, struct aki_buffer *buf); + +void aki_packet_free(struct aki_packet *packet); diff --git a/src/util/thread/thread.h b/src/util/thread/thread.h new file mode 100644 index 0000000..eb63b8d --- /dev/null +++ b/src/util/thread/thread.h @@ -0,0 +1,66 @@ +#pragma once + +#include <al/types.h> + +#ifndef _WIN32 +#include <pthread.h> +#else +#include "../../winwrap.h" +#endif + +struct aki_thread { +#ifndef _WIN32 + pthread_t thread; +#else + HANDLE thread; +#endif +}; + +struct aki_mutex { +#ifndef _WIN32 + pthread_mutex_t mutex; +#else + CRITICAL_SECTION mutex; +#endif +}; + +struct aki_cond { +#ifndef _WIN32 + pthread_cond_t cond; +#else + CONDITION_VARIABLE cond; +#endif + bool condition; +}; + +typedef f64 aki_os_tstamp; + +#define AKI_TS_FROM_USEC(usec) (usec * 1e-6) + +#ifndef _WIN32 +#define AKI_THREADCALL +typedef void * aki_thread_result; +#else +#define AKI_THREADCALL __stdcall +typedef unsigned long aki_thread_result; +#endif + +typedef aki_thread_result (AKI_THREADCALL * aki_thread_func)(void *); + +void aki_thread_sleep(aki_os_tstamp ts); + +void aki_thread_create(struct aki_thread *thread, aki_thread_func func, void *userdata); +void aki_thread_join(struct aki_thread *thread); +//void aki_thread_cancel(struct aki_thread *thread); +//void aki_thread_detach(struct aki_thread *thread); + +void aki_mutex_init(struct aki_mutex *mutex); +void aki_mutex_lock(struct aki_mutex *mutex); +void aki_mutex_unlock(struct aki_mutex *mutex); +void aki_mutex_destroy(struct aki_mutex *mutex); + +void aki_cond_init(struct aki_cond *cond); +void aki_cond_wait(struct aki_cond *cond, struct aki_mutex *mutex); +bool aki_cond_is_waiting(struct aki_cond *cond); +void aki_cond_signal(struct aki_cond *cond); +void aki_cond_destroy(struct aki_cond *cond); diff --git a/src/util/thread/thread_linux.c b/src/util/thread/thread_linux.c new file mode 100644 index 0000000..0214ed8 --- /dev/null +++ b/src/util/thread/thread_linux.c @@ -0,0 +1,86 @@ +#include <al/types.h> +#include <time.h> + +#include "../error.h" + +#include "thread.h" + +void aki_thread_sleep(aki_os_tstamp ts) +{ + struct timespec tv; + tv.tv_sec = (s64)ts; + tv.tv_nsec = (s64)((ts - tv.tv_sec) * 1e9); + while (nanosleep(&tv, &tv) == -1 && errno == EINTR) {} +} + +void aki_thread_create(struct aki_thread *thread, aki_thread_func func, void *userdata) +{ + pthread_create(&thread->thread, NULL, func, userdata); +} + +void aki_thread_join(struct aki_thread *thread) +{ + pthread_join(thread->thread, NULL); +} + +/* +void aki_thread_cancel(struct aki_thread *thread) +{ + pthread_cancel(thread->thread); +} + +void aki_thread_detach(struct aki_thread *thread) +{ + pthread_detach(thread->thread); +} +*/ + +void aki_mutex_init(struct aki_mutex *mutex) +{ + pthread_mutex_init(&mutex->mutex, NULL); +} + +void aki_mutex_lock(struct aki_mutex *mutex) +{ + pthread_mutex_lock(&mutex->mutex); +} + +void aki_mutex_unlock(struct aki_mutex *mutex) +{ + pthread_mutex_unlock(&mutex->mutex); +} + +void aki_mutex_destroy(struct aki_mutex *mutex) +{ + pthread_mutex_destroy(&mutex->mutex); +} + +void aki_cond_init(struct aki_cond *cond) +{ + cond->condition = true; + pthread_cond_init(&cond->cond, NULL); +} + +void aki_cond_wait(struct aki_cond *cond, struct aki_mutex *mutex) +{ + cond->condition = false; + while (!cond->condition) { + pthread_cond_wait(&cond->cond, &mutex->mutex); + } +} + +bool aki_cond_is_waiting(struct aki_cond *cond) +{ + return !cond->condition; +} + +void aki_cond_signal(struct aki_cond *cond) +{ + cond->condition = true; + pthread_cond_signal(&cond->cond); +} + +void aki_cond_destroy(struct aki_cond *cond) +{ + pthread_cond_destroy(&cond->cond); +} diff --git a/src/util/thread/thread_windows.c b/src/util/thread/thread_windows.c new file mode 100644 index 0000000..9ea9ead --- /dev/null +++ b/src/util/thread/thread_windows.c @@ -0,0 +1,81 @@ +#include "thread.h" + +NTSTATUS(__stdcall *NtDelayExecution)(BOOL Alertable, PLARGE_INTEGER DelayInterval); + +void aki_thread_sleep(aki_os_tstamp ts) +{ + LARGE_INTEGER intr; + intr.QuadPart = -1 * (s64)(ts * 1e7); + NtDelayExecution(false, &intr); +} + +void aki_thread_create(struct aki_thread *thread, aki_thread_func func, void *userdata) +{ + thread->thread = CreateThread(NULL, 0, func, userdata, 0, NULL); +} + +void aki_thread_join(struct aki_thread *thread) +{ + WaitForSingleObject(thread->thread, INFINITE); + CloseHandle(thread->thread); +} + +/* +void aki_thread_cancel(struct aki_thread *thread) +{ +} + +void aki_thread_detach(struct aki_thread *thread) +{ +} +*/ + +void aki_mutex_init(struct aki_mutex *mutex) +{ + InitializeCriticalSection(&mutex->mutex); +} + +void aki_mutex_lock(struct aki_mutex *mutex) +{ + EnterCriticalSection(&mutex->mutex); +} + +void aki_mutex_unlock(struct aki_mutex *mutex) +{ + LeaveCriticalSection(&mutex->mutex); +} + +void aki_mutex_destroy(struct aki_mutex *mutex) +{ + DeleteCriticalSection(&mutex->mutex); +} + +void aki_cond_init(struct aki_cond *cond) +{ + cond->condition = true; + InitializeConditionVariable(&cond->cond); +} + +void aki_cond_wait(struct aki_cond *cond, struct aki_mutex *mutex) +{ + cond->condition = false; + while (!cond->condition) { + SleepConditionVariableCS(&cond->cond, &mutex->mutex, INFINITE); + } +} + +bool aki_cond_is_waiting(struct aki_cond *cond) +{ + return !cond->condition; +} + +void aki_cond_signal(struct aki_cond *cond) +{ + cond->condition = true; + WakeConditionVariable(&cond->cond); +} + +void aki_cond_destroy(struct aki_cond *cond) +{ + (void)cond; +} diff --git a/src/util/timer/timer.h b/src/util/timer/timer.h new file mode 100644 index 0000000..2bf6b95 --- /dev/null +++ b/src/util/timer/timer.h @@ -0,0 +1,6 @@ +#pragma once + +#include <al/types.h> + +u64 aki_get_timestamp(void); +f64 aki_get_tick(void); diff --git a/src/util/timer/timer_linux.c b/src/util/timer/timer_linux.c new file mode 100644 index 0000000..d93bfdc --- /dev/null +++ b/src/util/timer/timer_linux.c @@ -0,0 +1,17 @@ +#include <time.h> + +#include "timer.h" + +u64 aki_get_timestamp(void) +{ + struct timespec spec; + clock_gettime(CLOCK_REALTIME, &spec); + return 1e6 * spec.tv_sec + spec.tv_nsec * 1e-3; +} + +f64 aki_get_tick(void) +{ + struct timespec spec; + clock_gettime(CLOCK_MONOTONIC, &spec); + return spec.tv_sec + spec.tv_nsec * 1e-9; +} diff --git a/src/util/timer/timer_windows.c b/src/util/timer/timer_windows.c new file mode 100644 index 0000000..37a8fd8 --- /dev/null +++ b/src/util/timer/timer_windows.c @@ -0,0 +1,39 @@ +#include <al/lib.h> + +#include "../../winwrap.h" + +#include "timer.h" + +f64 aki_get_tick(void) +{ + LARGE_INTEGER result; + QueryPerformanceCounter(&result); + return (result.QuadPart/(f64)performance_frequency.QuadPart); +} + +static SYSTEMTIME unix_epoch = { + .wYear = 1970, + .wMonth = 1, + .wDayOfWeek = 4, + .wDay = 1, + .wHour = 0, + .wMinute = 0, + .wSecond = 0, + .wMilliseconds = 0 +}; + +u64 aki_get_timestamp(void) +{ + FILETIME result0, result1; + SystemTimeToFileTime(&unix_epoch, &result0); + ULARGE_INTEGER li0 = { + .LowPart = result0.dwLowDateTime, + .HighPart = result0.dwHighDateTime + }; + GetSystemTimePreciseAsFileTime(&result1); + ULARGE_INTEGER li1 = { + .LowPart = result1.dwLowDateTime, + .HighPart = result1.dwHighDateTime + }; + return (li1.QuadPart - li0.QuadPart) / 10; +} diff --git a/src/winwrap.c b/src/winwrap.c new file mode 100644 index 0000000..a0a1229 --- /dev/null +++ b/src/winwrap.c @@ -0,0 +1,35 @@ +#include "winwrap.h" + +void aki_windows_init(void) +{ +#ifdef _WIN32 + CoInitialize(NULL); + + WSADATA data; + WSAStartup(MAKEWORD(2,2), &data); + + ULONG actual_resolution; + NTSTATUS(__stdcall *ZwSetTimerResolution)( + IN ULONG RequestedResolution, IN BOOLEAN Set, OUT PULONG ActualResolution) = ( + NTSTATUS(__stdcall*)(ULONG, BOOLEAN, PULONG))GetProcAddress( + GetModuleHandleW(L"ntdll"), "ZwSetTimerResolution"); + ZwSetTimerResolution(1, TRUE, &actual_resolution); + + NtDelayExecution = (NTSTATUS(__stdcall*)(BOOL, PLARGE_INTEGER))GetProcAddress( + GetModuleHandleW(L"ntdll"), "NtDelayExecution"); + + QueryPerformanceFrequency(&performance_frequency); +#endif +} + +void aki_windows_close(void) +{ +#ifdef _WIN32 + WSACleanup(); + CoUninitialize(); +#endif +} + +#ifdef _WIN32 +LARGE_INTEGER performance_frequency; +#endif diff --git a/src/winwrap.h b/src/winwrap.h new file mode 100644 index 0000000..83cf7ea --- /dev/null +++ b/src/winwrap.h @@ -0,0 +1,15 @@ +#pragma once + +#include <al/lib.h> + +#ifdef _WIN32 +#include <winsock2.h> +#include <ws2tcpip.h> +#include <io.h> +#include <windows.h> +extern NTSTATUS(__stdcall *NtDelayExecution)(BOOL Alertable, PLARGE_INTEGER DelayInterval); +extern LARGE_INTEGER performance_frequency; +#endif + +void aki_windows_init(void); +void aki_windows_close(void); diff --git a/subprojects/libev.wrap b/subprojects/libev.wrap new file mode 100644 index 0000000..21430df --- /dev/null +++ b/subprojects/libev.wrap @@ -0,0 +1,13 @@ +[wrap-file] +directory = libev-4.33 + +source_url = http://dist.schmorp.de/libev/libev-4.33.tar.gz +source_filename = libev-4.33.tar.gz +source_hash = 507eb7b8d1015fbec5b935f34ebed15bf346bed04a11ab82b8eee848c4205aea + +patch_directory = libev + +diff_files = libev/libev_aki_sleep.diff + +[provide] +dependency_names = libev diff --git a/subprojects/packagefiles/libev/libev_aki_sleep.diff b/subprojects/packagefiles/libev/libev_aki_sleep.diff new file mode 100644 index 0000000..ef1efec --- /dev/null +++ b/subprojects/packagefiles/libev/libev_aki_sleep.diff @@ -0,0 +1,37 @@ +--- ev.c 2020-03-18 08:27:32.000000000 -0400 ++++ ../ev.c 2023-09-21 16:15:10.219097499 -0400 +@@ -216,6 +216,8 @@ + + #include <signal.h> + ++#include "../../src/util/thread/thread.h" ++ + #ifdef EV_H + # include EV_H + #else +@@ -2216,24 +2218,7 @@ + { + if (delay > EV_TS_CONST (0.)) + { +-#if EV_USE_NANOSLEEP +- struct timespec ts; +- +- EV_TS_SET (ts, delay); +- nanosleep (&ts, 0); +-#elif defined _WIN32 +- /* maybe this should round up, as ms is very low resolution */ +- /* compared to select (µs) or nanosleep (ns) */ +- Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); +-#else +- struct timeval tv; +- +- /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ +- /* something not guaranteed by newer posix versions, but guaranteed */ +- /* by older ones */ +- EV_TV_SET (tv, delay); +- select (0, 0, 0, 0, &tv); +-#endif ++ aki_thread_sleep (delay); + } + } + diff --git a/subprojects/packagefiles/libev/meson.build b/subprojects/packagefiles/libev/meson.build new file mode 100644 index 0000000..c8a370f --- /dev/null +++ b/subprojects/packagefiles/libev/meson.build @@ -0,0 +1,2 @@ +project('libev', 'c', version: '4.33') +ev = declare_dependency(include_directories: include_directories('.')) diff --git a/test/test.c b/test/test.c new file mode 100644 index 0000000..bf1654b --- /dev/null +++ b/test/test.c @@ -0,0 +1,63 @@ +#include <aki/common.h> +#include <aki/thread.h> +#include <aki/line_processor.h> +#include <aki/timer.h> + +aki_thread_result AKI_THREADCALL test_thread(void *userdata) +{ + (void)userdata; + for (u32 i = 0; i < 10; i++) { + printf("Yo\n"); + aki_thread_sleep(1.0); + } + return 0; +} + +static struct aki_event_loop loop; + +static void line_callback(void *userdata, str *line) +{ + (void)userdata; + al_printf("%.*s\n", AL_STR_PRINTF(line)); + if (al_str_eq(line, al_str_c("quit"))) aki_event_loop_break(&loop); +} + +static void timer_callback(void *userdata, struct aki_timer *timer) +{ + printf("Yo\n"); + aki_timer_again(timer); +} + +s32 main(void) +{ + aki_common_init(); + + aki_event_loop_init(&loop); + + struct aki_timer timer; + aki_timer_init(&timer, &loop, 1.0, timer_callback, NULL); + aki_timer_again(&timer); + + /* + struct aki_thread thread; + aki_thread_create(&thread, test_thread, NULL); + aki_thread_join(&thread); + */ + +#ifndef _WIN32 + /* + struct aki_line_processor pro; + pro.callback = line_callback; + pro.userdata = NULL; + aki_line_processor_init(&pro, al_str_c("\n")); + aki_line_processor_open_fd(&pro, STDIN_FILENO); + aki_line_processor_run(&pro, &loop); + */ +#endif + + aki_event_loop_run(&loop); + + aki_common_close(); + + return 0; +} |