Add a "console active" CLI command, which lets you find out which console device

is currently active for the Asterisk CLI, or to set it.  Also, knock multiple device
support off of the to-do list.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@99248 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_console.c

@@ -41,8 +41,6 @@
  * in at least one of the other console channel drivers that are not yet
  * implemented here are:
  *
- * - Multiple device support
- *   - with "active" CLI command
  * - Set Auto-answer from the dialplan
  * - transfer CLI command
  * - boost CLI command and .conf option
@@ -1129,6 +1127,87 @@ static char *cli_console_sendtext(struct ast_cli_entry *e, int cmd, struct ast_c
 	return CLI_SUCCESS;
 }
 
+static void set_active(struct console_pvt *pvt, const char *value)
+{
+	if (pvt == &globals) {
+		ast_log(LOG_ERROR, "active is only valid as a per-device setting\n");
+		return;
+	}
+
+	if (!ast_true(value))
+		return;
+
+	ast_rwlock_wrlock(&active_lock);
+	if (active_pvt)
+		unref_pvt(active_pvt);
+	active_pvt = ref_pvt(pvt);
+	ast_rwlock_unlock(&active_lock);
+}
+
+static char *cli_console_active(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
+{
+	struct console_pvt *pvt;
+
+	switch (cmd) {
+	case CLI_INIT:
+		e->command = "console active";
+		e->usage =
+			"Usage: console active [device]\n"
+			"       If no device is specified.  The active console device will be shown.\n"
+			"Otherwise, the specified device will become the console device active for\n"
+			"the Asterisk CLI.\n";
+		return NULL;
+	case CLI_GENERATE:
+		if (a->pos == e->args) {
+			struct ao2_iterator i;
+			int x = 0;
+			char *res = NULL;
+			i = ao2_iterator_init(pvts, 0);
+			while ((pvt = ao2_iterator_next(&i))) {
+				if (++x > a->n && !strncasecmp(pvt->name, a->word, strlen(a->word)))
+					res = ast_strdup(pvt->name);
+				unref_pvt(pvt);
+				if (res)
+					return res;
+			}
+		}
+		return NULL;
+	}
+
+	if (a->argc < e->args)
+		return CLI_SHOWUSAGE;
+
+	if (a->argc == e->args) {
+		pvt = get_active_pvt();
+
+		if (!pvt)
+			ast_cli(a->fd, "No device is currently set as the active console device.\n");
+		else {
+			console_pvt_lock(pvt);
+			ast_cli(a->fd, "The active console device is '%s'.\n", pvt->name);
+			console_pvt_unlock(pvt);
+			pvt = unref_pvt(pvt);
+		}
+
+		return CLI_SUCCESS;
+	}
+
+	if (!(pvt = find_pvt(a->argv[e->args]))) {
+		ast_cli(a->fd, "Could not find a device called '%s'.\n", a->argv[e->args]);
+		return CLI_FAILURE;
+	}
+
+	set_active(pvt, "yes");
+
+	console_pvt_lock(pvt);
+	ast_cli(a->fd, "The active console device has been set to '%s'\n", pvt->name);
+	console_pvt_unlock(pvt);
+
+	unref_pvt(pvt);
+
+	return CLI_SUCCESS;
+}
+
 static struct ast_cli_entry cli_console[] = {
 	AST_CLI_DEFINE(cli_console_dial,       "Dial an extension from the console"),
 	AST_CLI_DEFINE(cli_console_hangup,     "Hangup a call on the console"),
@@ -1139,6 +1218,7 @@ static struct ast_cli_entry cli_console[] = {
 	AST_CLI_DEFINE(cli_console_autoanswer, "Turn autoanswer on or off"),
 	AST_CLI_DEFINE(cli_list_available,     "List available devices"),
 	AST_CLI_DEFINE(cli_list_devices,       "List configured devices"),
+	AST_CLI_DEFINE(cli_console_active,     "View or Set the active console device"),
 };
 
 /*!
@@ -1187,23 +1267,6 @@ static void store_callerid(struct console_pvt *pvt, const char *value)
 	ast_string_field_set(pvt, cid_num, cid_num);
 }
 
-static void set_active(struct console_pvt *pvt, const char *value)
-{
-	if (pvt == &globals) {
-		ast_log(LOG_ERROR, "active is only valid as a per-device setting\n");
-		return;
-	}
-
-	if (!ast_true(value))
-		return;
-
-	ast_rwlock_wrlock(&active_lock);
-	if (active_pvt)
-		unref_pvt(active_pvt);
-	active_pvt = ref_pvt(pvt);
-	ast_rwlock_unlock(&active_lock);
-}
-
 /*!
  * \brief Store a configuration parameter in a pvt struct
  *