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/*
* Example UPnP device/service, implementing the BinaryLight device and
* SwitchPower services to emulate a light switch.
*
* The user interface is as minimal as possible so that the GUPnP concepts and
* best practises are more apparent. For a better implementation of
* BinaryLight, see gupnp-tools.
*
* This example code is in the public domain.
*/
#include <libgupnp/gupnp.h>
#include <stdlib.h>
static GMainLoop *main_loop;
static enum {
OFF = 0,
ON = 1,
TOGGLE
} mode;
static gboolean quiet;
static gint repeat_counter = 1;
static gint repeat_delay;
static GOptionEntry entries[] =
{
{ "quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet, "Turn off output", NULL },
{ "repeat-counter", 'c', 0, G_OPTION_ARG_INT, &repeat_counter, "Repeat counter", "value" },
{ "repeat-delay", 'd', 0, G_OPTION_ARG_INT, &repeat_delay, "Delay in [ms] between each iteration", "value" },
{ NULL }
};
static void
send_cmd (GUPnPServiceProxy *proxy)
{
GError *error = NULL;
gboolean target;
GUPnPServiceProxyAction *action;
if (mode == TOGGLE) {
/* We're toggling, so first fetch the current status */
action = gupnp_service_proxy_action_new ("GetStatus", NULL);
gupnp_service_proxy_call_action (proxy, action, NULL, &error);
if (error != NULL)
goto error;
gupnp_service_proxy_action_get_result (action,
&error,
"ResultStatus", G_TYPE_BOOLEAN, &target, NULL);
g_clear_pointer (&action, gupnp_service_proxy_action_unref);
if (error != NULL)
goto error;
/* And then toggle it */
target = ! target;
} else {
/* Mode is a boolean, so the target is the mode thanks to our well chosen
enumeration values. */
target = mode;
}
/* Set the target */
action = gupnp_service_proxy_action_new ("SetTarget",
"newTargetValue", G_TYPE_BOOLEAN, target, NULL);
gupnp_service_proxy_call_action (proxy, action, NULL, &error);
g_clear_pointer (&action, gupnp_service_proxy_action_unref);
if (error != NULL) {
goto error;
} else {
if (!quiet) {
g_print ("Set switch to %s.\n", target ? "on" : "off");
}
}
done:
/* Only manipulate the first light switch that is found */
if (--repeat_counter <= 0) {
g_main_loop_quit (main_loop);
}
return;
error:
g_clear_pointer (&action, gupnp_service_proxy_action_unref);
g_printerr ("Cannot set switch: %s\n", error->message);
g_error_free (error);
goto done;
}
static gboolean timeout_func (gpointer user_data)
{
GUPnPServiceProxy *proxy = (GUPnPServiceProxy *) user_data;
send_cmd (proxy);
return TRUE;
}
static void
service_proxy_available_cb (G_GNUC_UNUSED GUPnPControlPoint *cp,
GUPnPServiceProxy *proxy)
{
if (repeat_counter>0)
{
send_cmd (proxy);
g_timeout_add (repeat_delay, timeout_func, proxy);
} else {
g_main_loop_quit (main_loop);
}
}
static void
usage (GOptionContext *optionContext)
{
gchar *help_text;
help_text = g_option_context_get_help (optionContext, TRUE, NULL);
g_printerr ("%s", help_text);
g_free (help_text);
}
int
main (int argc, char **argv)
{
GOptionContext *optionContext;
GError *error = NULL;
GUPnPContext *context;
GUPnPControlPoint *cp;
optionContext = g_option_context_new ("[on|off|toggle]");
g_option_context_add_main_entries (optionContext, entries, NULL);
if (!g_option_context_parse (optionContext, &argc, &argv, &error))
{
g_print ("option parsing failed: %s\n", error->message);
exit (1);
}
/* Check and parse command line arguments */
if (argc != 2) {
usage (optionContext);
return EXIT_FAILURE;
}
if (g_str_equal (argv[1], "on")) {
mode = ON;
} else if (g_str_equal (argv[1], "off")) {
mode = OFF;
} else if (g_str_equal (argv[1], "toggle")) {
mode = TOGGLE;
} else {
usage (optionContext);
return EXIT_FAILURE;
}
/* Create the UPnP context */
context = gupnp_context_new_for_address (NULL,
0,
GSSDP_UDA_VERSION_1_0,
&error);
if (error) {
g_printerr ("Error creating the GUPnP context: %s\n",
error->message);
g_error_free (error);
return EXIT_FAILURE;
}
/* Create the control point, searching for SwitchPower services */
cp = gupnp_control_point_new (context,
"urn:schemas-upnp-org:service:SwitchPower:1");
/* Connect to the service-found callback */
g_signal_connect (cp,
"service-proxy-available",
G_CALLBACK (service_proxy_available_cb),
NULL);
/* Start searching when the main loop runs */
gssdp_resource_browser_set_active (GSSDP_RESOURCE_BROWSER (cp), TRUE);
/* Run the main loop */
main_loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (main_loop);
/* Cleanup */
g_main_loop_unref (main_loop);
g_object_unref (cp);
g_object_unref (context);
return EXIT_SUCCESS;
}
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