diff options
Diffstat (limited to 'libc/sysdeps/linux')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/uClibc_mutex.h | 68 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/bits/uClibc_stdio.h | 28 |
2 files changed, 84 insertions, 12 deletions
diff --git a/libc/sysdeps/linux/common/bits/uClibc_mutex.h b/libc/sysdeps/linux/common/bits/uClibc_mutex.h index 14aeb9c80..c6094c3d2 100644 --- a/libc/sysdeps/linux/common/bits/uClibc_mutex.h +++ b/libc/sysdeps/linux/common/bits/uClibc_mutex.h @@ -62,7 +62,55 @@ #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 +131,22 @@ #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 */ diff --git a/libc/sysdeps/linux/common/bits/uClibc_stdio.h b/libc/sysdeps/linux/common/bits/uClibc_stdio.h index 3631ef79f..a8cf4eb56 100644 --- a/libc/sysdeps/linux/common/bits/uClibc_stdio.h +++ b/libc/sysdeps/linux/common/bits/uClibc_stdio.h @@ -134,26 +134,26 @@ __UCLIBC_MUTEX_AUTO_LOCK_VAR(__infunc_user_locking) #define __STDIO_AUTO_THREADLOCK(__stream) \ - __UCLIBC_MUTEX_AUTO_LOCK((__stream)->__lock, __infunc_user_locking, \ + __UCLIBC_IO_MUTEX_AUTO_LOCK((__stream)->__lock, __infunc_user_locking, \ (__stream)->__user_locking) #define __STDIO_AUTO_THREADUNLOCK(__stream) \ - __UCLIBC_MUTEX_AUTO_UNLOCK((__stream)->__lock, __infunc_user_locking) + __UCLIBC_IO_MUTEX_AUTO_UNLOCK((__stream)->__lock, __infunc_user_locking) #define __STDIO_ALWAYS_THREADLOCK(__stream) \ - __UCLIBC_MUTEX_LOCK((__stream)->__lock) + __UCLIBC_IO_MUTEX_LOCK((__stream)->__lock) #define __STDIO_ALWAYS_THREADUNLOCK(__stream) \ - __UCLIBC_MUTEX_UNLOCK((__stream)->__lock) + __UCLIBC_IO_MUTEX_UNLOCK((__stream)->__lock) #define __STDIO_ALWAYS_THREADLOCK_CANCEL_UNSAFE(__stream) \ - __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE((__stream)->__lock) + __UCLIBC_IO_MUTEX_LOCK_CANCEL_UNSAFE((__stream)->__lock) #define __STDIO_ALWAYS_THREADTRYLOCK_CANCEL_UNSAFE(__stream) \ - __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE((__stream)->__lock) + __UCLIBC_IO_MUTEX_TRYLOCK_CANCEL_UNSAFE((__stream)->__lock) #define __STDIO_ALWAYS_THREADUNLOCK_CANCEL_UNSAFE(__stream) \ - __UCLIBC_MUTEX_UNLOCK_CANCEL_UNSAFE((__stream)->__lock) + __UCLIBC_IO_MUTEX_UNLOCK_CANCEL_UNSAFE((__stream)->__lock) #ifdef __UCLIBC_HAS_THREADS__ #define __STDIO_SET_USER_LOCKING(__stream) ((__stream)->__user_locking = 1) @@ -161,6 +161,14 @@ #define __STDIO_SET_USER_LOCKING(__stream) ((void)0) #endif +#ifdef __UCLIBC_HAS_THREADS__ +#ifdef __USE_STDIO_FUTEXES__ +#define STDIO_INIT_MUTEX(M) _IO_lock_init(M) +#else +#define STDIO_INIT_MUTEX(M) __stdio_init_mutex(& M) +#endif +#endif + /**********************************************************************/ #define __STDIO_IOFBF 0 /* Fully buffered. */ @@ -275,7 +283,7 @@ struct __STDIO_FILE_STRUCT { #endif #ifdef __UCLIBC_HAS_THREADS__ int __user_locking; - __UCLIBC_MUTEX(__lock); + __UCLIBC_IO_MUTEX(__lock); #endif /* Everything after this is unimplemented... and may be trashed. */ #if __STDIO_BUILTIN_BUF_SIZE > 0 @@ -351,9 +359,9 @@ extern void _stdio_term(void) attribute_hidden; extern struct __STDIO_FILE_STRUCT *_stdio_openlist; #ifdef __UCLIBC_HAS_THREADS__ -__UCLIBC_MUTEX_EXTERN(_stdio_openlist_add_lock); +__UCLIBC_IO_MUTEX_EXTERN(_stdio_openlist_add_lock); #ifdef __STDIO_BUFFERS -__UCLIBC_MUTEX_EXTERN(_stdio_openlist_del_lock); +__UCLIBC_IO_MUTEX_EXTERN(_stdio_openlist_del_lock); extern volatile int _stdio_openlist_use_count; /* _stdio_openlist_del_lock */ extern int _stdio_openlist_del_count; /* _stdio_openlist_del_lock */ #endif |