medfall

commit dc44416f2df4d85e2ef37b769d2a6f297cafa6b4
parent fbd656cc6811b2093dec674f6241860da0a038c1
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Sun Dec 18 23:12:53 +0200

Add win32_mutex.h

Diffstat:
platform_mutex.h
 | 
4
+++-
win32_mutex.h
 | 
42
++++++++++++++++++++++++++++++++++++++++++
2 files changed, 45 insertions(+), 1 deletion(-)
diff --git a/platform_mutex.h b/platform_mutex.h
@@ -3,7 +3,9 @@
 
 #include "platform.h"
 
-#if PLATFORM_UNIX
+#if PLATFORM_WINDOWS
+#include "win32_mutex.h"
+#elif PLATFORM_UNIX
 #include "unix_mutex.h"
 #else
 #error new platform
diff --git a/win32_mutex.h b/win32_mutex.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <windows.h>
+
+#include "log.h"
+
+struct Mutex {
+	HANDLE mutex;
+};
+
+inline void mutex_init( Mutex * mutex ) {
+	mutex->mutex = CreateMutex( NULL, FALSE, NULL );
+	int ok = pthread_mutex_init( &mutex->mutex, NULL );
+	if( ok != 0 ) {
+		err( 1, "pthread_mutex_init: %d", ok );
+	}
+}
+
+inline void mutex_destroy( Mutex * mutex ) {
+	if( CloseHandle( mutex->mutex ) == 0 ) {
+		FATAL( "CloseHandle failed" );
+	}
+}
+
+inline void mutex_lock( Mutex * mutex ) {
+	if( WaitForSingleObject( sem->sem, INFINITE ) == WAIT_FAILED ) {
+		FATAL( "WaitForSingleObject failed" );
+	}
+}
+
+inline bool mutex_trylock( Mutex * mutex ) {
+	DWORD ok = WaitForSingleObject( sem->sem, 0 );
+	if( ok == WAIT_FAILED ) FATAL( "WaitForSingleObject failed" );
+	if( ok == WAIT_TIMEOUT ) return false;
+	return true;
+}
+
+inline void mutex_unlock( Mutex * mutex ) {
+	if( ReleaseMutex( mutex->mutex ) == 0 ) {
+		FATAL( "ReleaseMutex failed" );
+	}
+}