lockfile.c 1.4 KB

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  1. /* lockfile - Handle locking and unlocking of stream.
  2. Copyright (C) 1996, 1998 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Library General Public License as
  6. published by the Free Software Foundation; either version 2 of the
  7. License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Library General Public License for more details.
  12. You should have received a copy of the GNU Library General Public
  13. License along with the GNU C Library; see the file COPYING.LIB. If not,
  14. write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  15. Boston, MA 02111-1307, USA. */
  16. #include <stdio.h>
  17. #include <pthread.h>
  18. /* Note: glibc puts flockfile, funlockfile, and ftrylockfile in both
  19. * libc and libpthread. In uClibc, they are now in libc only. */
  20. void
  21. __fresetlockfiles (void)
  22. {
  23. FILE *fp;
  24. pthread_mutexattr_t attr;
  25. pthread_mutexattr_init(&attr);
  26. pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  27. for (fp = _stdio_openlist; fp != NULL; fp = fp->__nextopen)
  28. pthread_mutex_init(&fp->__lock, &attr);
  29. pthread_mutexattr_destroy(&attr);
  30. }