File: daemonize.h

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/* $Id: daemonize.h,v 1.8 2012/09/27 16:00:44 nanard Exp $ */
/* MiniUPnP project
 * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
 * (c) 2006 Thomas Bernard
 * This software is subject to the conditions detailed
 * in the LICENCE file provided within the distribution */

#ifndef DAEMONIZE_H_INCLUDED
#define DAEMONIZE_H_INCLUDED

#include "config.h"

#ifndef USE_DAEMON
/* daemonize()
 * "fork" to background, detach from terminal, etc...
 * returns: pid of the daemon, exits upon failure */
int
daemonize(void);
#endif

/* writepidfile()
 * write the pid to a file */
int
writepidfile(const char * fname, int pid);

/* checkforrunning()
 * check for another instance running
 * returns: 0 only instance
 *          -1 invalid filename
 *          -2 another instance running  */
int
checkforrunning(const char * fname);

#endif