/* the Music Player Daemon (MPD) * Copyright (C) 2008 Max Kellermann <max@duempel.org> * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "notify.h" #include "os_compat.h" #include "log.h" #include "utils.h" void initNotify(Notify *notify) { if (pipe(notify->fds) < 0) FATAL("Couldn't open pipe: %s", strerror(errno)); if (set_nonblocking(notify->fds[1]) < 0) FATAL("Couldn't set non-blocking on notify fd: %s", strerror(errno)); } void waitNotify(Notify *notify) { char buffer[64]; if (read(notify->fds[0], buffer, sizeof(buffer)) < 0) FATAL("error reading from pipe: %s\n", strerror(errno)); } void signalNotify(Notify *notify) { char buffer = 0; if (write(notify->fds[1], &buffer, sizeof(buffer)) < 0 && errno != EAGAIN && errno != EINTR) FATAL("error writing to pipe: %s\n", strerror(errno)); }