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/*
* 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 <string>
#include <assert.h>
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.
*/
std::string 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 empty if unknown.
*/
std::string mime;
input_stream(const input_plugin &_plugin,
const char *_uri, Mutex &_mutex, Cond &_cond)
:plugin(_plugin), uri(_uri),
mutex(_mutex), cond(_cond),
ready(false), seekable(false),
size(-1), offset(0) {
assert(_uri != NULL);
}
};
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
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