daemonize, versioncmp: Generally useful functions from tripe.

[mLib] / daemonize.h

diff --git a/daemonize.h b/daemonize.h
new file mode 100644 (file)
index 0000000..7ab8a83
--- /dev/null
+++ b/daemonize.h
@@ -0,0 +1,68 @@
+/* -*-c-*-
+ *
+ * $Id$
+ *
+ * Become a daemon, detaching from terminals
+ *
+ * (c) 2007 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------* 
+ *
+ * This file is part of the mLib utilities library.
+ *
+ * mLib is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ * 
+ * mLib 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 Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with mLib; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#ifndef MLIB_DAEMONIZE_H
+#define MLIB_DAEMONIZE_H
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+/*----- Functions provided ------------------------------------------------*/
+
+/* --- @detachtty@ --- *
+ *
+ * Arguments:  ---
+ *
+ * Returns:    ---
+ *
+ * Use:                Detaches from the current terminal and ensures it can never
+ *             acquire a new one.  Calls @fork@.
+ */
+
+extern void detachtty(void);
+
+/* --- @daemonize@ --- *
+ *
+ * Arguments:  ---
+ *
+ * Returns:    Zero if OK, nonzero on failure.
+ *
+ * Use:                Becomes a daemon.
+ */
+
+extern int daemonize(void);
+
+/*----- That's all, folks -------------------------------------------------*/
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif