ec1a4b5a5
Denis Vlasenko
2007-03-26
Subject
pidfile.c: not used anymore BTW, previous change removed pidfile locking, -700 code (static compile)
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networking/udhcp/pidfile.c+0 -60
| @@ -1,60 +0,0 @@ | |
| - | /* vi: set sw=4 ts=4: */ |
| - | /* pidfile.c |
| - | * |
| - | * Functions to assist in the writing and removing of pidfiles. |
| - | * |
| - | * Russ Dill <[email protected]> September 2001 |
| - | * |
| - | * This program is free software; you can redistribute it and/or modify |
| - | * it under the terms of the GNU General Public License as published by |
| - | * the Free Software Foundation; either version 2 of the License, or |
| - | * (at your option) any later version. |
| - | * |
| - | * This program is distributed in the hope that it will be useful, |
| - | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| - | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| - | * GNU General Public License for more details. |
| - | * |
| - | * You should have received a copy of the GNU General Public License |
| - | * along with this program; if not, write to the Free Software |
| - | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| - | */ |
| - | |
| - | #include "common.h" |
| - | |
| - | |
| - | static const char *saved_pidfile; |
| - | |
| - | static void pidfile_delete(void) |
| - | { |
| - | if (saved_pidfile) unlink(saved_pidfile); |
| - | } |
| - | |
| - | |
| - | int pidfile_acquire(const char *pidfile) |
| - | { |
| - | int pid_fd; |
| - | if (!pidfile) return -1; |
| - | |
| - | pid_fd = open(pidfile, O_CREAT|O_WRONLY|O_TRUNC, 0644); |
| - | if (pid_fd < 0) { |
| - | bb_perror_msg("cannot open pidfile %s", pidfile); |
| - | } else { |
| - | lockf(pid_fd, F_LOCK, 0); |
| - | if (!saved_pidfile) |
| - | atexit(pidfile_delete); |
| - | saved_pidfile = pidfile; |
| - | } |
| - | |
| - | return pid_fd; |
| - | } |
| - | |
| - | |
| - | void pidfile_write_release(int pid_fd) |
| - | { |
| - | if (pid_fd < 0) return; |
| - | |
| - | fdprintf(pid_fd, "%d\n", getpid()); |
| - | lockf(pid_fd, F_UNLCK, 0); |
| - | close(pid_fd); |
| - | } |