diff options
Diffstat (limited to 'libc/sysdeps/linux/common')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/uClibc_stdio.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/uClibc_stdio.h b/libc/sysdeps/linux/common/bits/uClibc_stdio.h index 40cd5fe70..e378489a4 100644 --- a/libc/sysdeps/linux/common/bits/uClibc_stdio.h +++ b/libc/sysdeps/linux/common/bits/uClibc_stdio.h @@ -119,6 +119,9 @@ #ifdef __UCLIBC_HAS_THREADS__ /* Need this for pthread_mutex_t. */ #include <bits/pthreadtypes.h> +#if defined __UCLIBC_HAS_FUTEXES__ && defined _LIBC +#include <bits/stdio-lock.h> +#endif /* user_locking * 0 : do auto locking/unlocking @@ -134,6 +137,31 @@ #define __STDIO_AUTO_THREADLOCK_VAR int __infunc_user_locking +#if defined __UCLIBC_HAS_FUTEXES__ && defined _LIBC + +#define __STDIO_SET_USER_LOCKING(__stream) ((__stream)->__user_locking = 1) + +#define __STDIO_AUTO_THREADLOCK(__stream) \ + if ((__infunc_user_locking = (__stream)->__user_locking) == 0) { \ + _IO_lock_lock((__stream)->_lock); \ + } + +#define __STDIO_AUTO_THREADUNLOCK(__stream) \ + if (__infunc_user_locking == 0) { \ + _IO_lock_unlock((__stream)->_lock); \ + } + +#define __STDIO_ALWAYS_THREADLOCK(__stream) \ + _IO_lock_lock((__stream)->_lock) + +#define __STDIO_ALWAYS_THREADTRYLOCK(__stream) \ + _IO_lock_trylock((__stream)->_lock) + +#define __STDIO_ALWAYS_THREADUNLOCK(__stream) \ + _IO_lock_unlock((__stream)->_lock) + +#else + #define __STDIO_AUTO_THREADLOCK(__stream) \ if ((__infunc_user_locking = (__stream)->__user_locking) == 0) { \ __pthread_mutex_lock(&(__stream)->__lock); \ @@ -155,6 +183,8 @@ #define __STDIO_ALWAYS_THREADUNLOCK(__stream) \ __pthread_mutex_unlock(&(__stream)->__lock) +#endif + #else /* __UCLIBC_HAS_THREADS__ */ #define __STDIO_AUTO_THREADLOCK_VAR ((void)0) @@ -283,8 +313,12 @@ struct __STDIO_FILE_STRUCT { #endif #ifdef __UCLIBC_HAS_THREADS__ int __user_locking; +#if defined __UCLIBC_HAS_FUTEXES__ && defined _LIBC + _IO_lock_t _lock; +#else pthread_mutex_t __lock; #endif +#endif /* Everything after this is unimplemented... and may be trashed. */ #if __STDIO_BUILTIN_BUF_SIZE > 0 unsigned char __builtinbuf[__STDIO_BUILTIN_BUF_SIZE]; @@ -358,7 +392,11 @@ extern void _stdio_term(void); extern struct __STDIO_FILE_STRUCT *_stdio_openlist; #ifdef __UCLIBC_HAS_THREADS__ +#if defined __UCLIBC_HAS_FUTEXES__ && defined _LIBC +extern _IO_lock_t _stdio_openlist_lock; +#else extern pthread_mutex_t _stdio_openlist_lock; +#endif extern int _stdio_openlist_delflag; extern int _stdio_user_locking; extern void __stdio_init_mutex(pthread_mutex_t *m); |