MPD: fs/io/GunzipReader.hxx Source File

MPD 0.20.18

GunzipReader.hxx
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1 /*
2 * Copyright 2003-2017 The Music Player Daemon Project
3 * http://www.musicpd.org
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #ifndef MPD_GUNZIP_READER_HXX
21 #define MPD_GUNZIP_READER_HXX
22
23 #include "check.h"
24 #include "Reader.hxx"
25 #include "util/StaticFifoBuffer.hxx"
26 #include "Compiler.h"
27
28 #include <zlib.h>
29
33 class GunzipReader final : public Reader {
34 Reader &next;
35
36 bool eof = false;
37
38 z_stream z;
39
40 StaticFifoBuffer<Bytef, 4096> buffer;
41
42 public:
46 explicit GunzipReader(Reader &_next);
47
48 ~GunzipReader() {
49 inflateEnd(&z);
50 }
51
52 /* virtual methods from class Reader */
53 size_t Read(void *data, size_t size) override;
54
55 private:
56 bool FillBuffer();
57 };
58
59 #endif
Reader
An interface that can read bytes from a stream until the stream ends.
Definition: Reader.hxx:35
check.h
StaticFifoBuffer< Bytef, 4096 >
GunzipReader
A filter that decompresses data using zlib.
Definition: GunzipReader.hxx:33
Reader.hxx
GunzipReader::Read
size_t Read(void *data, size_t size) override
Read data from the stream.
GunzipReader::~GunzipReader
~GunzipReader()
Definition: GunzipReader.hxx:48
Compiler.h
StaticFifoBuffer.hxx
GunzipReader::GunzipReader
GunzipReader(Reader &_next)
Construct the filter.