esp-open-rtos/libc/xtensa-lx106-elf/include/sys/stdio.h
Angus Gratton 689cf874b2 Provide our own newlib libc
Newlib 2.2.0 w/ nan ofeatures, xtensa patches, locking
implementation.

Built from https://github.com/projectgus/newlib-xtensa
branch xtensa-2_2_0-lock
commit daa6ae40cdc8099f54c3e68a586fc1b906169c5a

For more details, see:
https://github.com/SuperHouse/esp-open-rtos/wiki/libc-configuration

Closes #1
2015-07-15 15:17:59 +10:00

27 lines
807 B
C

#ifndef _NEWLIB_STDIO_H
#define _NEWLIB_STDIO_H
#include <sys/lock.h>
#include <sys/reent.h>
/* Internal locking macros, used to protect stdio functions. In the
general case, expand to nothing. Use __SSTR flag in FILE _flags to
detect if FILE is private to sprintf/sscanf class of functions; if
set then do nothing as lock is not initialised. */
#if !defined(_flockfile)
#ifndef __SINGLE_THREAD__
# define _flockfile(fp) (((fp)->_flags & __SSTR) ? 0 : __lock_acquire_recursive((fp)->_lock))
#else
# define _flockfile(fp) (_CAST_VOID 0)
#endif
#endif
#if !defined(_funlockfile)
#ifndef __SINGLE_THREAD__
# define _funlockfile(fp) (((fp)->_flags & __SSTR) ? 0 : __lock_release_recursive((fp)->_lock))
#else
# define _funlockfile(fp) (_CAST_VOID 0)
#endif
#endif
#endif /* _NEWLIB_STDIO_H */