mutex.h revision 49dbdb0186eb23d87d685b96eaefa9ec3c71d9b8
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano/*
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano * Copyright (C) 1998-2000 Internet Software Consortium.
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano *
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0ad19a3fc3de5592e2453070a818a5a41687900edlezcano * copyright notice and this permission notice appear in all copies.
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano *
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0ad19a3fc3de5592e2453070a818a5a41687900edlezcano * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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0ad19a3fc3de5592e2453070a818a5a41687900edlezcano */
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#ifndef ISC_MUTEX_H
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#define ISC_MUTEX_H 1
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#include <pthread.h>
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#include <isc/result.h> /* for ISC_R_ codes */
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano
0ad19a3fc3de5592e2453070a818a5a41687900edlezcanotypedef pthread_mutex_t isc_mutex_t;
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano/* XXX We could do fancier error handling... */
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#define isc_mutex_init(mp) \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ((pthread_mutex_init((mp), NULL) == 0) ? \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ISC_R_SUCCESS : ISC_R_UNEXPECTED)
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#define isc_mutex_lock(mp) \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ((pthread_mutex_lock((mp)) == 0) ? \
b113348ebd1d8e8ca005dc42bf887d4ea1ef0eb4dlezcano ISC_R_SUCCESS : ISC_R_UNEXPECTED)
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#define isc_mutex_unlock(mp) \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ((pthread_mutex_unlock((mp)) == 0) ? \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ISC_R_SUCCESS : ISC_R_UNEXPECTED)
06efeb5c0ee772cde7d551cfb41577df65f74470dlezcano#define isc_mutex_trylock(mp) \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ((pthread_mutex_trylock((mp)) == 0) ? \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ISC_R_SUCCESS : ISC_R_LOCKBUSY)
06efeb5c0ee772cde7d551cfb41577df65f74470dlezcano#define isc_mutex_destroy(mp) \
06efeb5c0ee772cde7d551cfb41577df65f74470dlezcano ((pthread_mutex_destroy((mp)) == 0) ? \
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano ISC_R_SUCCESS : ISC_R_UNEXPECTED)
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano#endif /* ISC_MUTEX_H */
0ad19a3fc3de5592e2453070a818a5a41687900edlezcano