91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/*
|
|
* Copyright (c) 1999 - 2001 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "roken.h"
|
|
|
|
ROKEN_LIB_FUNCTION char * ROKEN_LIB_CALL
|
|
pid_file_write (const char *progname)
|
|
{
|
|
char *ret = NULL;
|
|
FILE *fp;
|
|
|
|
if (asprintf (&ret, "%s%s.pid", _PATH_VARRUN, progname) < 0 || ret == NULL)
|
|
return NULL;
|
|
fp = fopen (ret, "w");
|
|
if (fp == NULL) {
|
|
free (ret);
|
|
return NULL;
|
|
}
|
|
fprintf (fp, "%u", (unsigned)getpid());
|
|
fclose (fp);
|
|
return ret;
|
|
}
|
|
|
|
ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
|
|
pid_file_delete (char **filename)
|
|
{
|
|
if (*filename != NULL) {
|
|
unlink (*filename);
|
|
free (*filename);
|
|
*filename = NULL;
|
|
}
|
|
}
|
|
|
|
#ifndef HAVE_PIDFILE
|
|
static char *pidfile_path;
|
|
|
|
static void
|
|
pidfile_cleanup(void)
|
|
{
|
|
if(pidfile_path != NULL)
|
|
pid_file_delete(&pidfile_path);
|
|
}
|
|
|
|
ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
|
|
pidfile(const char *basename)
|
|
{
|
|
if(pidfile_path != NULL)
|
|
return;
|
|
if(basename == NULL)
|
|
basename = getprogname();
|
|
pidfile_path = pid_file_write(basename);
|
|
#if defined(HAVE_ATEXIT)
|
|
atexit(pidfile_cleanup);
|
|
#elif defined(HAVE_ON_EXIT)
|
|
on_exit(pidfile_cleanup);
|
|
#endif
|
|
}
|
|
#endif
|