23 lines
536 B
C
23 lines
536 B
C
#ifndef AL_RWLOCK_H
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#define AL_RWLOCK_H
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#include "bool.h"
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#include "atomic.h"
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typedef struct {
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RefCount read_count;
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RefCount write_count;
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volatile int read_lock;
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volatile int read_entry_lock;
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volatile int write_lock;
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} RWLock;
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#define RWLOCK_STATIC_INITIALIZE { STATIC_REFCOUNT_INIT(0), STATIC_REFCOUNT_INIT(0), false, false, false }
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void RWLockInit(RWLock *lock);
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void ReadLock(RWLock *lock);
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void ReadUnlock(RWLock *lock);
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void WriteLock(RWLock *lock);
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void WriteUnlock(RWLock *lock);
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#endif /* AL_RWLOCK_H */
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