MPD
0.20.18
input
ProxyInputStream.hxx
Go to the documentation of this file.
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/*
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* Copyright 2003-2017 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_PROXY_INPUT_STREAM_HXX
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#define MPD_PROXY_INPUT_STREAM_HXX
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#include "
InputStream.hxx
"
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struct
Tag
;
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class
ProxyInputStream
:
public
InputStream
{
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protected
:
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InputStream
&
input
;
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public
:
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gcc_nonnull_all
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ProxyInputStream
(
InputStream
*_input);
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virtual
~ProxyInputStream
();
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ProxyInputStream
(
const
ProxyInputStream
&) =
delete
;
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ProxyInputStream
&
operator=
(
const
ProxyInputStream
&) =
delete
;
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/* virtual methods from InputStream */
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void
Check
()
override
;
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void
Update
()
override
;
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void
Seek
(
offset_type
new_offset)
override
;
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bool
IsEOF
() noexcept override;
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Tag
*
ReadTag
() override;
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bool
IsAvailable
() noexcept override;
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size_t
Read
(
void
*ptr,
size_t
read_size) override;
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protected:
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void
CopyAttributes
();
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};
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#endif
ProxyInputStream::Check
void Check() override
Check for errors that may have occurred in the I/O thread.
ProxyInputStream::operator=
ProxyInputStream & operator=(const ProxyInputStream &)=delete
gcc_nonnull_all
#define gcc_nonnull_all
Definition:
Compiler.h:122
ProxyInputStream::CopyAttributes
void CopyAttributes()
Copy public attributes from the underlying input stream to the "rewind" input stream.
ProxyInputStream::IsAvailable
bool IsAvailable() noexcept override
Returns true if the next read operation will not block: either data is available, or end-of-stream ha...
Tag
The meta information about a song file.
Definition:
Tag.hxx:34
InputStream::offset_type
::offset_type offset_type
Definition:
InputStream.hxx:38
InputStream
Definition:
InputStream.hxx:36
InputStream.hxx
ProxyInputStream::IsEOF
bool IsEOF() noexcept override
Returns true if the stream has reached end-of-file.
ProxyInputStream::Update
void Update() override
Update the public attributes.
ProxyInputStream::~ProxyInputStream
virtual ~ProxyInputStream()
ProxyInputStream::ProxyInputStream
gcc_nonnull_all ProxyInputStream(InputStream *_input)
ProxyInputStream
An InputStream that forwards all methods call to another InputStream instance.
Definition:
ProxyInputStream.hxx:32
ProxyInputStream::ReadTag
Tag * ReadTag() override
Reads the tag from the stream.
ProxyInputStream::Seek
void Seek(offset_type new_offset) override
Seeks to the specified position in the stream.
ProxyInputStream::input
InputStream & input
Definition:
ProxyInputStream.hxx:34
ProxyInputStream::Read
size_t Read(void *ptr, size_t read_size) override
Reads data from the stream into the caller-supplied buffer.
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