lockfile.c 1.5 KB

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  1. /* lockfile - Handle locking and unlocking of stream.
  2. Copyright (C) 1996, 1998, 2000 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 Lesser General Public License as
  6. published by the Free Software Foundation; either version 2.1 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. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser 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 <bits/libc-lock.h>
  17. #include <stdio.h>
  18. #include <pthread.h>
  19. #include "internals.h"
  20. /* Note: glibc puts flockfile, funlockfile, and ftrylockfile in both
  21. * libc and libpthread. In uClibc, they are now in libc only. */
  22. void
  23. __flockfilelist(void)
  24. {
  25. }
  26. void
  27. __funlockfilelist(void)
  28. {
  29. }
  30. void
  31. __fresetlockfiles (void)
  32. {
  33. FILE *fp;
  34. pthread_mutexattr_t attr;
  35. __pthread_mutexattr_init (&attr);
  36. __pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  37. for (fp = _stdio_openlist; fp != NULL; fp = fp->__nextopen)
  38. pthread_mutex_init (&fp->__lock, &attr);
  39. pthread_mutexattr_destroy(&attr);
  40. }