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[/] [c0or1k/] [trunk/] [conts/] [posix/] [libposix/] [include/] [posix/] [bits/] [uClibc_mutex.h] - Rev 2
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/* Copyright (C) 2006 Manuel Novoa III <mjn3@codepoet.org> * * GNU Library General Public License (LGPL) version 2 or later. * * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. */ #ifndef _UCLIBC_MUTEX_H #define _UCLIBC_MUTEX_H #include <features.h> #ifdef __UCLIBC_HAS_THREADS__ #include <pthread.h> #include <bits/uClibc_pthread.h> #define __UCLIBC_MUTEX_TYPE pthread_mutex_t #define __UCLIBC_MUTEX(M) pthread_mutex_t M #define __UCLIBC_MUTEX_INIT(M,I) pthread_mutex_t M = I #define __UCLIBC_MUTEX_STATIC(M,I) static pthread_mutex_t M = I #define __UCLIBC_MUTEX_EXTERN(M) extern pthread_mutex_t M #define __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE(M) \ __pthread_mutex_lock(&(M)) #define __UCLIBC_MUTEX_UNLOCK_CANCEL_UNSAFE(M) \ __pthread_mutex_unlock(&(M)) #define __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE(M) \ __pthread_mutex_trylock(&(M)) #define __UCLIBC_MUTEX_CONDITIONAL_LOCK(M,C) \ do { \ struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \ if (C) { \ _pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \ (void (*) (void *))__pthread_mutex_unlock, \ &(M)); \ __pthread_mutex_lock(&(M)); \ } \ ((void)0) #define __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M,C) \ if (C) { \ _pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1); \ } \ } while (0) #define __UCLIBC_MUTEX_AUTO_LOCK_VAR(A) int A #define __UCLIBC_MUTEX_AUTO_LOCK(M,A,V) \ __UCLIBC_MUTEX_CONDITIONAL_LOCK(M,((A=(V)) == 0)) #define __UCLIBC_MUTEX_AUTO_UNLOCK(M,A) \ __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M,(A == 0)) #define __UCLIBC_MUTEX_LOCK(M) \ __UCLIBC_MUTEX_CONDITIONAL_LOCK(M, 1) #define __UCLIBC_MUTEX_UNLOCK(M) \ __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1) #else #define __UCLIBC_MUTEX(M) void *__UCLIBC_MUTEX_DUMMY_ ## M #define __UCLIBC_MUTEX_INIT(M,I) extern void *__UCLIBC_MUTEX_DUMMY_ ## M #define __UCLIBC_MUTEX_STATIC(M,I) extern void *__UCLIBC_MUTEX_DUMMY_ ## M #define __UCLIBC_MUTEX_EXTERN(M) extern void *__UCLIBC_MUTEX_DUMMY_ ## M #define __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE(M) ((void)0) #define __UCLIBC_MUTEX_UNLOCK_CANCEL_UNSAFE(M) ((void)0) #define __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE(M) (0) /* Always succeed? */ #define __UCLIBC_MUTEX_CONDITIONAL_LOCK(M,C) ((void)0) #define __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M,C) ((void)0) #define __UCLIBC_MUTEX_AUTO_LOCK_VAR(A) ((void)0) #define __UCLIBC_MUTEX_AUTO_LOCK(M,A,V) ((void)0) #define __UCLIBC_MUTEX_AUTO_UNLOCK(M,A) ((void)0) #define __UCLIBC_MUTEX_LOCK(M) ((void)0) #define __UCLIBC_MUTEX_UNLOCK(M) ((void)0) #endif #endif /* _UCLIBC_MUTEX_H */