include/stdio_ext.h

   1 #ifndef _STDIO_EXT_H
   2
   3 # include <stdio-common/stdio_ext.h>
   4
   5 extern int __fsetlocking_internal (FILE *__fp, int __type) attribute_hidden;
   6
   7 #define __fsetlocking(fp, type) \
   8   ({ int __result = ((fp->_flags & _IO_USER_LOCK)                       \
   9                      ? FSETLOCKING_BYCALLER : FSETLOCKING_INTERNAL);    \
  10                                                                         \
  11      if (type != FSETLOCKING_QUERY)                                     \
  12        {                                                                \
  13          fp->_flags &= ~_IO_USER_LOCK;                                  \
  14          if (type == FSETLOCKING_BYCALLER)                              \
  15            fp->_flags |= _IO_USER_LOCK;                                 \
  16        }                                                                \
  17                                                                         \
  18      __result;                                                          \
  19   })
  20
  21
  22 #endif