ARI: Implement channel hold/unhold.

This puts the channel on hold (rather than queueing a frame from the channel).

(closes issue ASTERISK-21619)

Review: https://reviewboard.asterisk.org/r/2647/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@393332 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/stasis_app.h

@@ -173,6 +173,18 @@ int stasis_app_control_continue(struct stasis_app_control *control, const char *
  */
 int stasis_app_control_answer(struct stasis_app_control *control);
 
+/*!
+ * \brief Place the channel associated with the control on hold.
+ * \param control Control for \c res_stasis.
+ */
+void stasis_app_control_hold(struct stasis_app_control *control);
+
+/*!
+ * \brief Remove the channel associated with the control from hold.
+ * \param control Control for \c res_stasis.
+ */
+void stasis_app_control_unhold(struct stasis_app_control *control);
+
 /*!
  * \brief Returns the most recent snapshot for the associated channel.
  *

res/stasis/control.c

@@ -207,6 +207,32 @@ int stasis_app_control_continue(struct stasis_app_control *control, const char *
 	return 0;
 }
 
+static void *app_control_hold(struct stasis_app_control *control,
+	struct ast_channel *chan, void *data)
+{
+	ast_indicate(control->channel, AST_CONTROL_HOLD);
+
+	return NULL;
+}
+
+void stasis_app_control_hold(struct stasis_app_control *control)
+{
+	stasis_app_send_command_async(control, app_control_hold, NULL);
+}
+
+static void *app_control_unhold(struct stasis_app_control *control,
+	struct ast_channel *chan, void *data)
+{
+	ast_indicate(control->channel, AST_CONTROL_UNHOLD);
+
+	return NULL;
+}
+
+void stasis_app_control_unhold(struct stasis_app_control *control)
+{
+	stasis_app_send_command_async(control, app_control_unhold, NULL);
+}
+
 struct ast_channel_snapshot *stasis_app_control_get_snapshot(
 	const struct stasis_app_control *control)
 {

res/stasis_http/resource_channels.c

@@ -150,11 +150,32 @@ void stasis_http_unmute_channel(struct ast_variable *headers, struct ast_unmute_
 }
 void stasis_http_hold_channel(struct ast_variable *headers, struct ast_hold_channel_args *args, struct stasis_http_response *response)
 {
-	ast_log(LOG_ERROR, "TODO: stasis_http_hold_channel\n");
+	RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
+
+	control = find_control(response, args->channel_id);
+	if (control == NULL) {
+		/* Response filled in by find_control */
+		return;
+	}
+
+	stasis_app_control_hold(control);
+
+	stasis_http_response_no_content(response);
 }
+
 void stasis_http_unhold_channel(struct ast_variable *headers, struct ast_unhold_channel_args *args, struct stasis_http_response *response)
 {
-	ast_log(LOG_ERROR, "TODO: stasis_http_unhold_channel\n");
+	RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
+
+	control = find_control(response, args->channel_id);
+	if (control == NULL) {
+		/* Response filled in by find_control */
+		return;
+	}
+
+	stasis_app_control_unhold(control);
+
+	stasis_http_response_no_content(response);
 }
 
 void stasis_http_play_on_channel(struct ast_variable *headers,