From 9fb3646511998310fc8c967c239803f38b2bdc5b Mon Sep 17 00:00:00 2001
From: Andrew Opalach <andrew@akon.city>
Date: Sun, 25 May 2025 18:35:12 -0400
Subject: Windows XP support

Signed-off-by: Andrew Opalach <andrew@akon.city>
---
 src/util/thread/thread.h         |  4 +++
 src/util/thread/thread_windows.c | 59 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+)

(limited to 'src/util/thread')

diff --git a/src/util/thread/thread.h b/src/util/thread/thread.h
index 6ea5722..142aa3c 100644
--- a/src/util/thread/thread.h
+++ b/src/util/thread/thread.h
@@ -47,7 +47,11 @@ struct nn_mutex {
 
 struct nn_cond {
 #ifdef NAUNET_ON_WINDOWS
+#ifdef NAUNET_WIN32_COMPAT_MODE
+    HANDLE event;
+#else
     CONDITION_VARIABLE cond;
+#endif
 #else
     pthread_cond_t cond;
 #endif
diff --git a/src/util/thread/thread_windows.c b/src/util/thread/thread_windows.c
index 9ce85e2..8722d0a 100644
--- a/src/util/thread/thread_windows.c
+++ b/src/util/thread/thread_windows.c
@@ -1,3 +1,5 @@
+#include <al/lib.h>
+
 #include "thread.h"
 
 NTSTATUS(__stdcall *NtDelayExecution)(BOOL Alertable, PLARGE_INTEGER DelayInterval);
@@ -42,6 +44,28 @@ void nn_thread_detach(struct nn_thread *thread)
 }
 */
 
+/*
+void nn_mutex_init(struct nn_mutex *mutex)
+{
+    mutex->mutex = CreateMutex(NULL, FALSE, NULL);
+}
+
+void nn_mutex_lock(struct nn_mutex *mutex)
+{
+    WaitForSingleObject(mutex->mutex, INFINITE);
+}
+
+void nn_mutex_unlock(struct nn_mutex *mutex)
+{
+    ReleaseMutex(mutex->mutex);
+}
+
+void nn_mutex_destroy(struct nn_mutex *mutex)
+{
+    CloseHandle(mutex->mutex);
+}
+*/
+
 void nn_mutex_init(struct nn_mutex *mutex)
 {
     InitializeCriticalSection(&mutex->mutex);
@@ -62,6 +86,40 @@ void nn_mutex_destroy(struct nn_mutex *mutex)
     DeleteCriticalSection(&mutex->mutex);
 }
 
+#ifdef NAUNET_WIN32_COMPAT_MODE
+void nn_cond_init(struct nn_cond *cond)
+{
+    cond->condition = true;
+    cond->event = CreateEvent(NULL, TRUE, FALSE, NULL);
+}
+
+void nn_cond_wait(struct nn_cond *cond, struct nn_mutex *mutex)
+{
+    al_assert(cond->condition);
+    cond->condition = false;
+    nn_mutex_unlock(mutex);
+    WaitForSingleObject(cond->event, INFINITE);
+    ResetEvent(cond->event);
+    nn_mutex_lock(mutex);
+}
+
+bool nn_cond_is_waiting(struct nn_cond *cond)
+{
+    return !cond->condition;
+}
+
+void nn_cond_signal(struct nn_cond *cond)
+{
+    al_assert(!cond->condition);
+    cond->condition = true;
+    SetEvent(cond->event);
+}
+
+void nn_cond_destroy(struct nn_cond *cond)
+{
+    CloseHandle(cond->event);
+}
+#else
 void nn_cond_init(struct nn_cond *cond)
 {
     cond->condition = true;
@@ -91,3 +149,4 @@ void nn_cond_destroy(struct nn_cond *cond)
 {
     (void)cond;
 }
+#endif
-- 
cgit v1.2.3-101-g0448