1 #ifndef _NEWLIB_STDIO_H 2 #define _NEWLIB_STDIO_H 3 4 #include <sys/lock.h> 5 #include <sys/reent.h> 6 7 /* Internal locking macros, used to protect stdio functions. In the 8 general case, expand to nothing. Use __SSTR flag in FILE _flags to 9 detect if FILE is private to sprintf/sscanf class of functions; if 10 set then do nothing as lock is not initialised. */ 11 #if !defined(_flockfile) 12 #ifndef __SINGLE_THREAD__ 13 # define _flockfile(fp) (((fp)->_flags & __SSTR) ? 0 : __lock_acquire_recursive((fp)->_lock)) 14 #else 15 # define _flockfile(fp) 16 #endif 17 #endif 18 19 #if !defined(_funlockfile) 20 #ifndef __SINGLE_THREAD__ 21 # define _funlockfile(fp) (((fp)->_flags & __SSTR) ? 0 : __lock_release_recursive((fp)->_lock)) 22 #else 23 # define _funlockfile(fp) 24 #endif 25 #endif 26 27 #endif /* _NEWLIB_STDIO_H */ 28