medfall

commit 1866f96788a08c71ab1c8af2526741b4b3abf8b8
parent 1a6367f2f0acca37fbcba6b3385c681c8f094595
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Sun Feb 19 13:06:41 +0200

Use CRITICAL_SECTION in win32_mutex

Diffstat:
win32_mutex.h
 | 
24
++++++------------------
1 file changed, 6 insertions(+), 18 deletions(-)
diff --git a/win32_mutex.h b/win32_mutex.h
@@ -5,37 +5,25 @@
 #include "log.h"
 
 struct Mutex {
-	HANDLE mutex;
+	CRITICAL_SECTION cs;
 };
 
 inline void mutex_init( Mutex * mutex ) {
-	mutex->mutex = CreateMutex( NULL, FALSE, NULL );
-	if( mutex->mutex == NULL ) {
-		FATAL( "CreateMutex failed" );
-	}
+	InitializeCriticalSection( &mutex->cs );
 }
 
 inline void mutex_destroy( Mutex * mutex ) {
-	if( CloseHandle( mutex->mutex ) == 0 ) {
-		FATAL( "CloseHandle failed" );
-	}
+	DeleteCriticalSection( &mutex->cs );
 }
 
 inline void mutex_lock( Mutex * mutex ) {
-	if( WaitForSingleObject( mutex->mutex, INFINITE ) == WAIT_FAILED ) {
-		FATAL( "WaitForSingleObject failed" );
-	}
+	EnterCriticalSection( &mutex->cs );
 }
 
 inline bool mutex_trylock( Mutex * mutex ) {
-	DWORD ok = WaitForSingleObject( mutex->mutex, 0 );
-	if( ok == WAIT_FAILED ) FATAL( "WaitForSingleObject failed" );
-	if( ok == WAIT_TIMEOUT ) return false;
-	return true;
+	return TryEnterCriticalSection( &mutex->cs ) != 0;
 }
 
 inline void mutex_unlock( Mutex * mutex ) {
-	if( ReleaseMutex( mutex->mutex ) == 0 ) {
-		FATAL( "ReleaseMutex failed" );
-	}
+	LeaveCriticalSection( &mutex->cs );
 }