diff options
Diffstat (limited to 'libc/stdio/fileext.h')
| -rw-r--r-- | libc/stdio/fileext.h | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/libc/stdio/fileext.h b/libc/stdio/fileext.h index c074b4b..6cacc0f 100644 --- a/libc/stdio/fileext.h +++ b/libc/stdio/fileext.h @@ -33,6 +33,7 @@ #define _FILEEXT_H_ #include <pthread.h> +#include <stdbool.h> __BEGIN_DECLS @@ -40,14 +41,18 @@ __BEGIN_DECLS * file extension */ struct __sfileext { - struct __sbuf _ub; /* ungetc buffer */ + struct __sbuf _ub; /* ungetc buffer */ struct wchar_io_data _wcio; /* wide char io status */ - pthread_mutex_t _lock; /* file lock */ + pthread_mutex_t _lock; /* file lock */ + bool _stdio_handles_locking; /* __fsetlocking support */ }; -#define _FILEEXT_INITIALIZER {{NULL,0},{0},PTHREAD_RECURSIVE_MUTEX_INITIALIZER} - +#if defined(__cplusplus) +#define _EXT(fp) reinterpret_cast<__sfileext*>((fp)->_ext._base) +#else #define _EXT(fp) ((struct __sfileext *)((fp)->_ext._base)) +#endif + #define _UB(fp) _EXT(fp)->_ub #define _FLOCK(fp) _EXT(fp)->_lock @@ -56,7 +61,12 @@ do { \ _UB(fp)._base = NULL; \ _UB(fp)._size = 0; \ WCIO_INIT(fp); \ - _FLOCK(fp).value = __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE; \ + pthread_mutexattr_t attr; \ + pthread_mutexattr_init(&attr); \ + pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); \ + pthread_mutex_init(&_FLOCK(fp), &attr); \ + pthread_mutexattr_destroy(&attr); \ + _EXT(fp)->_stdio_handles_locking = true; \ } while (0) #define _FILEEXT_SETUP(f, fext) \ |