pidfile.c: not used anymore
BTW, previous change removed pidfile locking, -700 code (static compile)
This commit is contained in:
parent
af1c84360f
commit
ec1a4b5a52
@ -1,60 +0,0 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/* pidfile.c
|
||||
*
|
||||
* Functions to assist in the writing and removing of pidfiles.
|
||||
*
|
||||
* Russ Dill <Russ.Dill@asu.edu> 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);
|
||||
}
|
Loading…
Reference in New Issue
Block a user