diff options
Diffstat (limited to 'libc/sysdeps/linux/common/bits/uClibc_mutex.h')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/uClibc_mutex.h | 78 |
1 files changed, 73 insertions, 5 deletions
diff --git a/libc/sysdeps/linux/common/bits/uClibc_mutex.h b/libc/sysdeps/linux/common/bits/uClibc_mutex.h index 14aeb9c80..3e3d0066a 100644 --- a/libc/sysdeps/linux/common/bits/uClibc_mutex.h +++ b/libc/sysdeps/linux/common/bits/uClibc_mutex.h @@ -22,6 +22,9 @@ #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_INIT_VAR(M) \ + ((M) = (pthread_mutex_t) PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) + #define __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE(M) \ __pthread_mutex_lock(&(M)) @@ -29,12 +32,13 @@ __pthread_mutex_unlock(&(M)) #define __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE(M) \ - __pthread_mutex_trylock(&(M)) + __pthread_mutex_trylock,(&(M)) #define __UCLIBC_MUTEX_CONDITIONAL_LOCK(M,C) \ do { \ struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \ - if (C) { \ + int __infunc_need_locking = (C); \ + if (__infunc_need_locking) { \ _pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \ (void (*) (void *))__pthread_mutex_unlock, \ &(M)); \ @@ -43,7 +47,7 @@ ((void)0) #define __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M,C) \ - if (C) { \ + if (__infunc_need_locking) { \ _pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1); \ } \ } while (0) @@ -62,7 +66,55 @@ #define __UCLIBC_MUTEX_UNLOCK(M) \ __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1) -#else +#ifdef __USE_STDIO_FUTEXES__ + +#include <bits/stdio-lock.h> + +#define __UCLIBC_IO_MUTEX(M) _IO_lock_t M +#define __UCLIBC_IO_MUTEX_LOCK(M) _IO_lock_lock(M) +#define __UCLIBC_IO_MUTEX_UNLOCK(M) _IO_lock_unlock(M) +#define __UCLIBC_IO_MUTEX_TRYLOCK(M) _IO_lock_trylock(M) +#define __UCLIBC_IO_MUTEX_INIT(M) _IO_lock_t M = _IO_lock_initializer +#define __UCLIBC_IO_MUTEX_EXTERN(M) extern _IO_lock_t M + +#define __UCLIBC_IO_MUTEX_CONDITIONAL_LOCK(M,C) \ + if (C) { \ + _IO_lock_lock(M); \ + } + +#define __UCLIBC_IO_MUTEX_CONDITIONAL_UNLOCK(M,C) \ + if (C) { \ + _IO_lock_unlock(M); \ + } + +#define __UCLIBC_IO_MUTEX_AUTO_LOCK(M,A,V) \ + __UCLIBC_IO_MUTEX_CONDITIONAL_LOCK(M,((A=(V))) == 0) + +#define __UCLIBC_IO_MUTEX_AUTO_UNLOCK(M,A) \ + __UCLIBC_IO_MUTEX_CONDITIONAL_UNLOCK(M,((A) == 0)) + +#define __UCLIBC_IO_MUTEX_LOCK_CANCEL_UNSAFE(M) _IO_lock_lock(M) +#define __UCLIBC_IO_MUTEX_UNLOCK_CANCEL_UNSAFE(M) _IO_lock_unlock(M) + +#else /* of __USE_STDIO_FUTEXES__ */ + +#define __UCLIBC_IO_MUTEX(M) __UCLIBC_MUTEX(M) +#define __UCLIBC_IO_MUTEX_LOCK(M) __UCLIBC_MUTEX_CONDITIONAL_LOCK(M, 1) +#define __UCLIBC_IO_MUTEX_UNLOCK(M) __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1) +#define __UCLIBC_IO_MUTEX_TRYLOCK(M) __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE(M) +#define __UCLIBC_IO_MUTEX_INIT(M) __UCLIBC_MUTEX_INIT(M, PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) +#define __UCLIBC_IO_MUTEX_EXTERN(M) __UCLIBC_MUTEX_EXTERN(M) +#define __UCLIBC_IO_MUTEX_AUTO_LOCK(M,A,V) __UCLIBC_MUTEX_AUTO_LOCK(M,A,V) +#define __UCLIBC_IO_MUTEX_AUTO_UNLOCK(M,A) __UCLIBC_MUTEX_AUTO_UNLOCK(M,A) +#define __UCLIBC_IO_MUTEX_LOCK_CANCEL_UNSAFE(M) __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE(M) +#define __UCLIBC_IO_MUTEX_UNLOCK_CANCEL_UNSAFE(M) __UCLIBC_MUTEX_UNLOCK_CANCEL_UNSAFE(M) +#define __UCLIBC_IO_MUTEX_CONDITIONAL_LOCK(M,C) __UCLIBC_MUTEX_CONDITIONAL_LOCK(M, 1) +#define __UCLIBC_IO_MUTEX_CONDITIONAL_UNLOCK(M,C) __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1) + +#endif /* of __USE_STDIO_FUTEXES__ */ + + +#else /* of __UCLIBC_HAS_THREADS__ */ #define __UCLIBC_MUTEX(M) void *__UCLIBC_MUTEX_DUMMY_ ## M #define __UCLIBC_MUTEX_INIT(M,I) extern void *__UCLIBC_MUTEX_DUMMY_ ## M @@ -83,6 +135,22 @@ #define __UCLIBC_MUTEX_LOCK(M) ((void)0) #define __UCLIBC_MUTEX_UNLOCK(M) ((void)0) -#endif +#define __UCLIBC_IO_MUTEX(M) __UCLIBC_MUTEX(M) +#define __UCLIBC_IO_MUTEX_LOCK(M) __UCLIBC_MUTEX_CONDITIONAL_LOCK(M, 1) +#define __UCLIBC_IO_MUTEX_UNLOCK(M) __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1) +#define __UCLIBC_IO_MUTEX_TRYLOCK(M) __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE(M) +#define __UCLIBC_IO_MUTEX_INIT(M) __UCLIBC_MUTEX_INIT(M, PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) +#define __UCLIBC_IO_MUTEX_EXTERN(M) __UCLIBC_MUTEX_EXTERN(M) +#define __UCLIBC_IO_MUTEX_AUTO_LOCK(M,A,V) __UCLIBC_MUTEX_AUTO_LOCK(M,A,V) +#define __UCLIBC_IO_MUTEX_AUTO_UNLOCK(M,A) __UCLIBC_MUTEX_AUTO_UNLOCK(M,A) +#define __UCLIBC_IO_MUTEX_LOCK_CANCEL_UNSAFE(M) __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE(M) +#define __UCLIBC_IO_MUTEX_UNLOCK_CANCEL_UNSAFE(M) __UCLIBC_MUTEX_UNLOCK_CANCEL_UNSAFE(M) +#define __UCLIBC_IO_MUTEX_CONDITIONAL_LOCK(M,C) __UCLIBC_MUTEX_CONDITIONAL_LOCK(M, 1) +#define __UCLIBC_IO_MUTEX_CONDITIONAL_UNLOCK(M,C) __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1) + +#endif /* of __UCLIBC_HAS_THREADS__ */ + +#define __UCLIBC_IO_MUTEX_TRYLOCK_CANCEL_UNSAFE(M) \ + __UCLIBC_IO_MUTEX_TRYLOCK(M) #endif /* _UCLIBC_MUTEX_H */ |