Initial checkin

daemonize.h

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+/* 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__
+#define __DAEMONIZE_H__
+
+#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
+