/* * Copyright (C) 2003-2010 The Music Player Daemon Project * http://www.musicpd.org * * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #include "client_internal.h" #include "idle.h" #include <assert.h> /** * Send "idle" response to this client. */ static void client_idle_notify(struct client *client) { unsigned flags, i; const char *const* idle_names; assert(client->idle_waiting); assert(client->idle_flags != 0); flags = client->idle_flags; client->idle_flags = 0; client->idle_waiting = false; idle_names = idle_get_names(); for (i = 0; idle_names[i]; ++i) { if (flags & (1 << i) & client->idle_subscriptions) client_printf(client, "changed: %s\n", idle_names[i]); } client_puts(client, "OK\n"); g_timer_start(client->last_activity); } static void client_idle_callback(gpointer data, gpointer user_data) { struct client *client = data; unsigned flags = GPOINTER_TO_UINT(user_data); if (client_is_expired(client)) return; client->idle_flags |= flags; if (client->idle_waiting && (client->idle_flags & client->idle_subscriptions)) { client_idle_notify(client); client_write_output(client); } } void client_manager_idle_add(unsigned flags) { assert(flags != 0); client_list_foreach(client_idle_callback, GUINT_TO_POINTER(flags)); } bool client_idle_wait(struct client *client, unsigned flags) { assert(!client->idle_waiting); client->idle_waiting = true; client->idle_subscriptions = flags; if (client->idle_flags & client->idle_subscriptions) { client_idle_notify(client); return true; } else return false; }