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/*
* Copyright (C) 2003-2014 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_BUFFERED_READER_HXX
#define MPD_BUFFERED_READER_HXX
#include "check.h"
#include "Compiler.h"
#include "util/DynamicFifoBuffer.hxx"
#include "util/Error.hxx"
#include <stddef.h>
class Reader;
class Error;
class BufferedReader {
static constexpr size_t MAX_SIZE = 512 * 1024;
Reader &reader;
DynamicFifoBuffer<char> buffer;
Error last_error;
bool eof;
public:
BufferedReader(Reader &_reader)
:reader(_reader), buffer(4096), eof(false) {}
gcc_pure
bool Check() const {
return !last_error.IsDefined();
}
bool Check(Error &error) const {
if (last_error.IsDefined()) {
error.Set(last_error);
return false;
} else
return true;
}
bool Fill(bool need_more);
gcc_pure
WritableBuffer<void> Read() const {
return buffer.Read().ToVoid();
}
void Consume(size_t n) {
buffer.Consume(n);
}
char *ReadLine();
};
#endif
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