/* * Copyright (C) 2003-2013 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. */ #ifndef MPD_INPUT_STREAM_HXX #define MPD_INPUT_STREAM_HXX #include "input_stream.h" #include "check.h" #include "thread/Mutex.hxx" #include "thread/Cond.hxx" #include "gcc.h" #include #include struct input_stream { /** * the plugin which implements this input stream */ const struct input_plugin &plugin; /** * The absolute URI which was used to open this stream. May * be NULL if this is unknown. */ char *uri; /** * A mutex that protects the mutable attributes of this object * and its implementation. It must be locked before calling * any of the public methods. * * This object is allocated by the client, and the client is * responsible for freeing it. */ Mutex &mutex; /** * A cond that gets signalled when the state of this object * changes from the I/O thread. The client of this object may * wait on it. Optional, may be NULL. * * This object is allocated by the client, and the client is * responsible for freeing it. */ Cond &cond; /** * indicates whether the stream is ready for reading and * whether the other attributes in this struct are valid */ bool ready; /** * if true, then the stream is fully seekable */ bool seekable; /** * the size of the resource, or -1 if unknown */ goffset size; /** * the current offset within the stream */ goffset offset; /** * the MIME content type of the resource, or NULL if unknown */ char *mime; input_stream(const input_plugin &_plugin, const char *_uri, Mutex &_mutex, Cond &_cond) :plugin(_plugin), uri(g_strdup(_uri)), mutex(_mutex), cond(_cond), ready(false), seekable(false), size(-1), offset(0), mime(nullptr) { assert(_uri != NULL); } ~input_stream() { g_free(uri); g_free(mime); } }; gcc_nonnull(1) static inline void input_stream_lock(struct input_stream *is) { is->mutex.lock(); } gcc_nonnull(1) static inline void input_stream_unlock(struct input_stream *is) { is->mutex.unlock(); } #endif