//#include "/usr/include/signal.h"
#include <SDL/SDL.h>
#include <pthread.h>
-#include <assert.h>
#define NORETURN __attribute__((noreturn))
+#include <stdbool.h>
#include <logdebug.h> // Kernel land, but uses standards
+#include <errno.h>
// === CODE ===
void Threads_Glue_Yield(void)
int Threads_Glue_SemSignal( void *Ptr, int AmmountToAdd )
{
- int i;
- for( i = 0; i < AmmountToAdd; i ++ )
+ for( int i = 0; i < AmmountToAdd; i ++ )
SDL_SemPost( Ptr );
return AmmountToAdd;
}
-// --------------------------------------------------------------------
-// Event handling
-// --------------------------------------------------------------------
-int RWLock_AcquireRead(tRWLock *Lock)
+void Threads_Glue_SemDestroy( void *Ptr )
{
- if( !Lock->ReaderWaiting ) {
- Lock->ReaderWaiting = malloc(sizeof(pthread_rwlock_t));
- pthread_rwlock_init( (void*)Lock->ReaderWaiting, 0 );
- }
- pthread_rwlock_rdlock( (void*)Lock->ReaderWaiting );
- return 0;
+ SDL_DestroySemaphore(Ptr);
}
-int RWLock_AcquireWrite(tRWLock *Lock)
+
+// ---
+// Short Locks
+// ---
+void Threads_int_ShortLock(void **MutexPtr)
{
- if( !Lock->ReaderWaiting ) {
- Lock->ReaderWaiting = malloc(sizeof(pthread_rwlock_t));
- pthread_rwlock_init( (void*)Lock->ReaderWaiting, 0 );
+ if( !*MutexPtr ) {
+ *MutexPtr = malloc( sizeof(pthread_mutex_t) );
+ pthread_mutexattr_t attr;
+ pthread_mutexattr_init(&attr);
+ pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
+ pthread_mutex_init(*MutexPtr, NULL);
+ }
+ if( pthread_mutex_lock(*MutexPtr) ) {
+ fprintf(stderr, "ERROR: Mutex pointer %p double locked\n", MutexPtr);
+ AcessNative_Exit();
}
- pthread_rwlock_wrlock( (void*)Lock->ReaderWaiting );
- return 0;
}
-void RWLock_Release(tRWLock *Lock)
+
+void Threads_int_ShortRel(void **MutexPtr)
{
- pthread_rwlock_unlock( (void*)Lock->ReaderWaiting );
+ pthread_mutex_unlock(*MutexPtr);
+}
+
+int Threads_int_ShortHas(void **Ptr)
+{
+ if( !*Ptr )
+ return 0;
+ int rv = pthread_mutex_trylock(*Ptr);
+ if( rv == 0 ) {
+ pthread_mutex_unlock(*Ptr);
+ return 0;
+ }
+ if( rv == EBUSY ) {
+ return 0;
+ }
+ return 1;
}