Group PJ_RW_MUTEX¶
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group
PJ_RW_MUTEX Reader/writer mutex is a classic synchronization object where multiple readers can acquire the mutex, but only a single writer can acquire the mutex.
Typedefs
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typedef struct pj_rwmutex_t
pj_rwmutex_t¶ Opaque declaration for reader/writer mutex. Reader/writer mutex is a classic synchronization object where multiple readers can acquire the mutex, but only a single writer can acquire the mutex.
Functions
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pj_status_t
pj_rwmutex_create(pj_pool_t *pool, const char *name, pj_rwmutex_t **mutex)¶ Create reader/writer mutex.
- Parameters
pool – Pool to allocate memory for the mutex.
name – Name to be assigned to the mutex.
mutex – Pointer to receive the newly created mutex.
- Returns
PJ_SUCCESS on success, or the error code.
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pj_status_t
pj_rwmutex_lock_read(pj_rwmutex_t *mutex)¶ Lock the mutex for reading.
- Parameters
mutex – The mutex.
- Returns
PJ_SUCCESS on success, or the error code.
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pj_status_t
pj_rwmutex_lock_write(pj_rwmutex_t *mutex)¶ Lock the mutex for writing.
- Parameters
mutex – The mutex.
- Returns
PJ_SUCCESS on success, or the error code.
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pj_status_t
pj_rwmutex_unlock_read(pj_rwmutex_t *mutex)¶ Release read lock.
- Parameters
mutex – The mutex.
- Returns
PJ_SUCCESS on success, or the error code.
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pj_status_t
pj_rwmutex_unlock_write(pj_rwmutex_t *mutex)¶ Release write lock.
- Parameters
mutex – The mutex.
- Returns
PJ_SUCCESS on success, or the error code.
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pj_status_t
pj_rwmutex_destroy(pj_rwmutex_t *mutex)¶ Destroy reader/writer mutex.
- Parameters
mutex – The mutex.
- Returns
PJ_SUCCESS on success, or the error code.
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typedef struct pj_rwmutex_t