Changed the way Mutex are check for lock on Signal handling (should h…

…elp with freeze)

src/box86context.c

@@ -81,9 +81,8 @@ int unlockMutex()
     int ret = unlockCustommemMutex();
     int i;
     #define GO(A, B)                    \
-        i = checkMutex(&A);             \
+        i = checkUnlockMutex(&A);       \
         if(i) {                         \
-            pthread_mutex_unlock(&A);   \
             ret|=(1<<B);                \
         }
 

src/custommem.c

@@ -648,9 +648,8 @@ int unlockCustommemMutex()
     int ret = 0;
     int i = 0;
     #define GO(A, B)                    \
-        i = checkMutex(&A);             \
+        i = checkUnlockMutex(&A);       \
         if(i) {                         \
-            pthread_mutex_unlock(&A);   \
             ret|=(1<<B);                \
         }
     GO(mutex_blocks, 0)

src/include/threads.h

@@ -20,7 +20,7 @@ void fini_pthread_helper(box86context_t* context);
 // prepare an "emuthread structure" in pet and return address of function pointer for a "thread creation routine"
 void* my_prepare_thread(x86emu_t *emu, void* f, void* arg, int ssize, void** pet);
 
-//check if a mutex is locked by current thread (works only for PTHREAD_MUTEX_ERRORCHECK typed mutex)
-int checkMutex(void* m);
+//check and unlock if a mutex is locked by current thread (works only for PTHREAD_MUTEX_ERRORCHECK typed mutex)
+int checkUnlockMutex(void* m);
 
 #endif //_THREADS_H_

src/libtools/threads.c

@@ -843,15 +843,12 @@ void fini_pthread_helper(box86context_t* context)
 	}
 }
 
-int checkMutex(void* m)
+int checkUnlockMutex(void* m)
 {
 	pthread_mutex_t* mutex = (pthread_mutex_t*)m;
-	int ret = pthread_mutex_trylock(mutex);
+	int ret = pthread_mutex_unlock(mutex);
 	if(ret==0) {
-		pthread_mutex_unlock(mutex);
-		return 0;
-	}
-	if(ret==EDEADLK)
 		return 1;
+	}
 	return 0;
 }