Add an initial interactive mode to gatttool

Mode required to allow better GATT procedures control. Some scenarios
require sequential commands without disconnection and delay between
operations. It is also desirable to change some connection parameters
of an active connection.

3 files changed, 161 insertions, 0 deletions

diff --git a/attrib/gatttool.c b/attrib/gatttool.c
index b9f00870..c3d0472b 100644
--- a/attrib/gatttool.c
+++ b/attrib/gatttool.c
@@ -42,6 +42,7 @@
 #include "gattrib.h"
 #include "glib-helper.h"
 #include "gatt.h"
+#include "gatttool.h"
 
 /* Minimum MTU for L2CAP connections over BR/EDR */
 #define ATT_MIN_MTU_L2CAP 48
@@ -64,6 +65,7 @@ static gboolean opt_char_desc = FALSE;
 static gboolean opt_le = FALSE;
 static gboolean opt_char_write = FALSE;
 static gboolean opt_char_write_req = FALSE;
+static gboolean opt_interactive = FALSE;
 static GMainLoop *event_loop;
 static gboolean got_error = FALSE;
 
@@ -594,6 +596,8 @@ static GOptionEntry gatt_options[] = {
 		"Listen for notifications and indications", NULL },
 	{ "le", 0, 0, G_OPTION_ARG_NONE, &opt_le,
 		"Use Bluetooth Low Energy transport", NULL },
+	{ "interactive", 'I', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
+		&opt_interactive, "Use interactive mode", NULL },
 	{ NULL },
 };
 
@@ -651,6 +655,11 @@ int main(int argc, char *argv[])
 		g_error_free(gerr);
 	}
 
+	if (opt_interactive) {
+		interactive();
+		goto done;
+	}
+
 	if (opt_primary)
 		callback = primary;
 	else if (opt_characteristics)
diff --git a/attrib/gatttool.h b/attrib/gatttool.h
new file mode 100644
index 00000000..ed5d9d68
--- /dev/null
+++ b/attrib/gatttool.h
@@ -0,0 +1,24 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2011  Nokia Corporation
+ *
+ *
+ *  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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+int interactive(void);
diff --git a/attrib/interactive.c b/attrib/interactive.c
new file mode 100644
index 00000000..06536096
--- /dev/null
+++ b/attrib/interactive.c
@@ -0,0 +1,128 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2011  Nokia Corporation
+ *
+ *
+ *  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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+#include <strings.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <glib.h>
+
+#include <readline/readline.h>
+#include <readline/history.h>
+
+#include "gatttool.h"
+
+static GMainLoop *event_loop;
+
+static void cmd_help(int argcp, char **argvp);
+
+static void cmd_exit(int argcp, char **argvp)
+{
+	rl_callback_handler_remove();
+	g_main_loop_quit(event_loop);
+}
+
+static struct {
+	const char *cmd;
+	void (*func)(int argcp, char **argvp);
+	const char *desc;
+} commands[] = {
+	{ "help",	cmd_help,	"Show this help"},
+	{ "exit",	cmd_exit,	"Exit interactive mode"},
+	{ NULL, NULL, NULL}
+};
+
+static void cmd_help(int argcp, char **argvp)
+{
+	int i;
+
+	for (i = 0; commands[i].cmd; i++)
+		printf("%-12s\t%s\n", commands[i].cmd, commands[i].desc);
+}
+
+static void parse_line(char *line_read)
+{
+	gchar **argvp;
+	int argcp;
+	int i;
+
+	if (line_read == NULL) {
+		printf("\n");
+		cmd_exit(0, NULL);
+		return;
+	}
+
+	line_read = g_strstrip(line_read);
+
+	if (*line_read == '\0')
+		return;
+
+	add_history(line_read);
+
+	g_shell_parse_argv(line_read, &argcp, &argvp, NULL);
+
+	for (i = 0; commands[i].cmd; i++)
+		if (strcasecmp(commands[i].cmd, argvp[0]) == 0)
+			break;
+
+	if (commands[i].cmd)
+		commands[i].func(argcp, argvp);
+	else
+		printf("%s: command not found\n", argvp[0]);
+
+	g_strfreev(argvp);
+}
+
+static gboolean prompt_read(GIOChannel *chan, GIOCondition cond,
+							gpointer user_data)
+{
+	if (cond & (G_IO_HUP | G_IO_ERR | G_IO_NVAL)) {
+		g_io_channel_unref(chan);
+		return FALSE;
+	}
+
+	rl_callback_read_char();
+
+	return TRUE;
+}
+
+int interactive(void)
+{
+	GIOChannel *pchan;
+	gint events;
+
+	event_loop = g_main_loop_new(NULL, FALSE);
+
+	pchan = g_io_channel_unix_new(fileno(stdin));
+	g_io_channel_set_close_on_unref(pchan, TRUE);
+	events = G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL;
+	g_io_add_watch(pchan, events, prompt_read, NULL);
+
+	rl_callback_handler_install("> ", parse_line);
+
+	g_main_loop_run(event_loop);
+
+	rl_callback_handler_remove();
+	g_io_channel_unref(pchan);
+	g_main_loop_unref(event_loop);
+
+	return 0;
+}