implement a startup monitor, move code to src/startup.c

include/startup.h

@@ -0,0 +1,35 @@
+/*
+ * vim:ts=4:sw=4:expandtab
+ *
+ * i3 - an improved dynamic tiling window manager
+ *
+ * © 2009-2011 Michael Stapelberg and contributors
+ *
+ * See file LICENSE for license information.
+ *
+ */
+#ifndef _STARTUP_H
+#define _STARTUP_H
+
+#define SN_API_NOT_YET_FROZEN 1
+#include <libsn/sn-monitor.h>
+
+/**
+ * Starts the given application by passing it through a shell. We use double
+ * fork to avoid zombie processes. As the started application’s parent exits
+ * (immediately), the application is reparented to init (process-id 1), which
+ * correctly handles childs, so we don’t have to do it :-).
+ *
+ * The shell is determined by looking for the SHELL environment variable. If
+ * it does not exist, /bin/sh is used.
+ *
+ */
+void start_application(const char *command);
+
+/**
+ * Called by libstartup-notification when something happens
+ *
+ */
+void startup_monitor_event(SnMonitorEvent *event, void *userdata);
+
+#endif