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#ifndef AL_RWLOCK_H
#define AL_RWLOCK_H
#include "bool.h"
#include "atomic.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
RefCount read_count;
RefCount write_count;
ATOMIC_FLAG read_lock;
ATOMIC_FLAG read_entry_lock;
ATOMIC_FLAG write_lock;
} RWLock;
#define RWLOCK_STATIC_INITIALIZE { ATOMIC_INIT_STATIC(0), ATOMIC_INIT_STATIC(0), \
ATOMIC_FLAG_INIT, ATOMIC_FLAG_INIT, ATOMIC_FLAG_INIT }
void RWLockInit(RWLock *lock);
void ReadLock(RWLock *lock);
void ReadUnlock(RWLock *lock);
void WriteLock(RWLock *lock);
void WriteUnlock(RWLock *lock);
#ifdef __cplusplus
}
#endif
#endif /* AL_RWLOCK_H */
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