/* pidfile.h - interact with pidfiles Copyright (c) 1995 Martin Schulze This file is part of the sysklogd package, a kernel and system log daemon. 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ /* read_pid * * Reads the specified pidfile and returns the read pid. * 0 is returned if either there's no pidfile, it's empty * or no pid can be read. */ int read_pid (char *pidfile); /* check_pid * * Reads the pid using read_pid and looks up the pid in the process * table (using /proc) to determine if the process already exists. If * so 1 is returned, otherwise 0. */ int check_pid (char *pidfile); /* write_pid * * Writes the pid to the specified file. If that fails 0 is * returned, otherwise the pid. */ int write_pid (char *pidfile); /* remove_pid * * Remove the the specified file. The result from unlink(2) * is returned */ int remove_pid (char *pidfile);