diff options
Diffstat (limited to 'libc/sysdeps')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/uClibc_stdio.h | 48 |
1 files changed, 40 insertions, 8 deletions
diff --git a/libc/sysdeps/linux/common/bits/uClibc_stdio.h b/libc/sysdeps/linux/common/bits/uClibc_stdio.h index 5b6b35496..bd584692e 100644 --- a/libc/sysdeps/linux/common/bits/uClibc_stdio.h +++ b/libc/sysdeps/linux/common/bits/uClibc_stdio.h @@ -148,24 +148,47 @@ #define __STDIO_AUTO_THREADLOCK_VAR int __infunc_user_locking #define __STDIO_AUTO_THREADLOCK(__stream) \ + do { \ + struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \ if ((__infunc_user_locking = (__stream)->__user_locking) == 0) { \ + _pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \ + __pthread_mutex_unlock, \ + &(__stream)->__lock); \ __pthread_mutex_lock(&(__stream)->__lock); \ - } + } \ + ((void)0) #define __STDIO_AUTO_THREADUNLOCK(__stream) \ if (__infunc_user_locking == 0) { \ - __pthread_mutex_unlock(&(__stream)->__lock); \ - } + _pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1);\ + } \ + } while (0) #define __STDIO_SET_USER_LOCKING(__stream) ((__stream)->__user_locking = 1) #define __STDIO_ALWAYS_THREADLOCK(__stream) \ + do { \ + struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \ + _pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \ + __pthread_mutex_unlock, \ + &(__stream)->__lock); \ + __pthread_mutex_lock(&(__stream)->__lock); \ + ((void)0) + +/* #define __STDIO_ALWAYS_THREADTRYLOCK(__stream) \ */ +/* __pthread_mutex_trylock(&(__stream)->__lock) */ + +#define __STDIO_ALWAYS_THREADUNLOCK(__stream) \ + _pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1); \ + } while (0) + +#define __STDIO_ALWAYS_THREADLOCK_CANCEL_UNSAFE(__stream) \ __pthread_mutex_lock(&(__stream)->__lock) -#define __STDIO_ALWAYS_THREADTRYLOCK(__stream) \ +#define __STDIO_ALWAYS_THREADTRYLOCK_CANCEL_UNSAFE(__stream) \ __pthread_mutex_trylock(&(__stream)->__lock) -#define __STDIO_ALWAYS_THREADUNLOCK(__stream) \ +#define __STDIO_ALWAYS_THREADUNLOCK_CANCEL_UNSAFE(__stream) \ __pthread_mutex_unlock(&(__stream)->__lock) #else /* __UCLIBC_HAS_THREADS__ */ @@ -178,9 +201,13 @@ #define __STDIO_SET_USER_LOCKING(__stream) ((void)0) #define __STDIO_ALWAYS_THREADLOCK(__stream) ((void)0) -#define __STDIO_ALWAYS_THREADTRYLOCK(__stream) (0) /* Always succeed. */ +/* #define __STDIO_ALWAYS_THREADTRYLOCK(__stream) (0) /\* Always succeed. *\/ */ #define __STDIO_ALWAYS_THREADUNLOCK(__stream) ((void)0) +#define __STDIO_ALWAYS_THREADLOCK_CANCEL_UNSAFE(__stream) ((void)0) +#define __STDIO_ALWAYS_THREADTRYLOCK_CANCEL_UNSAFE(__stream) (0) /* Ok? */ +#define __STDIO_ALWAYS_THREADUNLOCK_CANCEL_UNSAFE(__stream) ((void)0) + #endif /* __UCLIBC_HAS_THREADS__ */ /**********************************************************************/ @@ -343,6 +370,7 @@ struct __STDIO_FILE_STRUCT { #define __FLAG_FREEFILE 0x2000U #define __FLAG_FREEBUF 0x4000U #define __FLAG_LARGEFILE 0x8000U /* fixed! == 0_LARGEFILE for linux */ +#define __FLAG_FAILED_FREOPEN __FLAG_LARGEFILE /* Note: In no-buffer mode, it would be possible to pack the necessary * flags into one byte. Since we wouldn't be buffering and there would @@ -371,8 +399,12 @@ extern void _stdio_term(void) attribute_hidden; extern struct __STDIO_FILE_STRUCT *_stdio_openlist; #ifdef __UCLIBC_HAS_THREADS__ -extern pthread_mutex_t _stdio_openlist_lock; -extern int _stdio_openlist_delflag; +extern pthread_mutex_t _stdio_openlist_add_lock; +#ifdef __STDIO_BUFFERS +extern pthread_mutex_t _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 extern int _stdio_user_locking; /* #ifdef _LIBC */ extern void __stdio_init_mutex(pthread_mutex_t *m) attribute_hidden; |