lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 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 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public License as |
| 7 | published by the Free Software Foundation; either version 2.1 of the |
| 8 | License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
| 17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 18 | Boston, MA 02111-1307, USA. */ |
| 19 | |
| 20 | #include <bits/libc-lock.h> |
| 21 | #include <stdio.h> |
| 22 | #include <pthread.h> |
| 23 | #include "internals.h" |
| 24 | |
| 25 | /* Note: glibc puts flockfile, funlockfile, and ftrylockfile in both |
| 26 | * libc and libpthread. In uClibc, they are now in libc only. */ |
| 27 | |
| 28 | void |
| 29 | __flockfilelist(void) |
| 30 | { |
| 31 | } |
| 32 | |
| 33 | void |
| 34 | __funlockfilelist(void) |
| 35 | { |
| 36 | } |
| 37 | |
| 38 | void |
| 39 | __fresetlockfiles (void) |
| 40 | { |
| 41 | FILE *fp; |
| 42 | |
| 43 | pthread_mutexattr_t attr; |
| 44 | |
| 45 | __pthread_mutexattr_init (&attr); |
| 46 | __pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE_NP); |
| 47 | |
| 48 | for (fp = _stdio_openlist; fp != NULL; fp = fp->__nextopen) |
| 49 | pthread_mutex_init (&fp->__lock, &attr); |
| 50 | |
| 51 | pthread_mutexattr_destroy(&attr); |
| 52 | } |