add examples...

example-clients/simple_client.c

@@ -37,6 +37,17 @@ process (jack_nframes_t nframes, void *arg)
 	return 0;      
 }
 
+char *session_callback( jack_session_event_t code, char *path, char *prefix, void *arg )
+{
+	printf( "session notification\n" );
+	printf( "path %s, prefix %s, type: %s", path, prefix, code == JackSessionSave ? "save" : "quit" );
+
+	if( code == JackSessionQuit )
+		exit(1); 
+
+	return strdup( "jack_simpleclient" );
+}
+
 /**
  * JACK calls this shutdown_callback if the server ever shuts down or
  * decides to disconnect the client.
@@ -88,6 +99,7 @@ main (int argc, char *argv[])
 
 	jack_on_shutdown (client, jack_shutdown, 0);
 
+	jack_set_session_callback( client, session_callback, NULL );
 	/* display the current sample rate. 
 	 */
 

tools/Makefile.am

@@ -38,6 +38,7 @@ bin_PROGRAMS = jack_load \
 	       jack_alias \
 	       jack_bufsize \
 	       jack_samplerate \
+	       jack_session_notify \
 	       jack_wait \
 	       $(JACK_TRANSPORT) \
 	       $(NETJACK_TOOLS)
@@ -96,6 +97,10 @@ jack_samplerate_SOURCES = samplerate.c
 jack_samplerate_LDFLAGS = @OS_LDFLAGS@
 jack_samplerate_LDADD = $(top_builddir)/libjack/libjack.la
 
+jack_session_notify_SOURCES = session_notify.c
+jack_session_notify_LDFLAGS = @OS_LDFLAGS@
+jack_session_notify_LDADD = $(top_builddir)/libjack/libjack.la
+
 if HAVE_READLINE
 jack_transport_SOURCES = transport.c
 jack_transport_LDFLAGS = -lreadline @READLINE_DEPS@ @OS_LDFLAGS@

tools/session_notify.c

@@ -0,0 +1,102 @@
+/*
+ *  smaplerate.c -- get current samplerate
+ *
+ *  Copyright (C) 2003 Jack O'Quin.
+ *  
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <jack/jack.h>
+#include <jack/transport.h>
+
+char *package;				/* program name */
+jack_client_t *client;
+
+jack_session_event_t notify_type;
+char *save_path = NULL;
+
+void jack_shutdown(void *arg)
+{
+	fprintf(stderr, "JACK shut down, exiting ...\n");
+	exit(1);
+}
+
+void signal_handler(int sig)
+{
+	jack_client_close(client);
+	fprintf(stderr, "signal received, exiting ...\n");
+	exit(0);
+}
+
+void parse_arguments(int argc, char *argv[])
+{
+
+	/* basename $0 */
+	package = strrchr(argv[0], '/');
+	if (package == 0)
+		package = argv[0];
+	else
+		package++;
+
+	if (argc==2) {
+		if( !strcmp( argv[1], "quit" ) ) {
+			notify_type = JackSessionQuit;
+			return;
+		}
+	}
+	if (argc==3) {
+		if( !strcmp( argv[1], "save" ) ) {
+			notify_type = JackSessionSave;
+			save_path = argv[2];
+		}
+
+	}
+	fprintf(stderr, "usage: %s quit|save [path]\n", package);
+	exit(9);
+}
+
+int main(int argc, char *argv[])
+{
+	parse_arguments(argc, argv);
+	int retval;
+
+	/* become a JACK client */
+	if ((client = jack_client_new(package)) == 0) {
+		fprintf(stderr, "JACK server not running?\n");
+		exit(1);
+	}
+
+	signal(SIGQUIT, signal_handler);
+	signal(SIGTERM, signal_handler);
+	signal(SIGHUP, signal_handler);
+	signal(SIGINT, signal_handler);
+
+	jack_on_shutdown(client, jack_shutdown, 0);
+
+
+	retval = jack_session_notify( client, notify_type, save_path );
+	printf( "session notify returned: %d", retval );
+
+
+	jack_client_close(client);
+
+	return 0;
+}