blocxx
src
blocxx
BaseStreamBuffer.hpp
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/*******************************************************************************
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* Copyright (C) 2005, Vintela, Inc. All rights reserved.
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* Copyright (C) 2006, Novell, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of
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* Vintela, Inc.,
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* nor Novell, Inc.,
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* nor the names of its contributors or employees may be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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#ifndef BLOCXX_BASESTREAMBUFFER_HPP_INCLUDE_GUARD_
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#define BLOCXX_BASESTREAMBUFFER_HPP_INCLUDE_GUARD_
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#include "blocxx/BLOCXX_config.h"
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#ifdef BLOCXX_HAVE_STREAMBUF
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#include <streambuf>
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#else
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#include <streambuf.h>
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#endif
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// The classes and functions defined in this file are not meant for general
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// use, they are internal implementation details. They may change at any time.
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namespace
BLOCXX_NAMESPACE
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{
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const
size_t
BASE_BUF_SIZE
= 256;
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const
size_t
HTTP_BUF_SIZE
= 4096;
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class
BLOCXX_COMMON_API
BaseStreamBuffer
:
public
std::streambuf
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{
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public
:
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enum
EDirectionFlag
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{
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E_IN
,
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E_OUT
,
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E_IN_OUT
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};
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BaseStreamBuffer
(EDirectionFlag direction,
size_t
bufSize = BASE_BUF_SIZE);
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~BaseStreamBuffer
();
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protected
:
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// for input
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int
underflow();
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//int pbackfail(int c);
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// for output
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std::streamsize xsputn(
const
char
* s, std::streamsize n);
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virtual
int
overflow(
int
c);
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virtual
int
sync();
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virtual
void
initBuffers();
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virtual
void
initGetBuffer();
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virtual
void
initPutBuffer();
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// meant to be overwritten (at least one of them)
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virtual
int
buffer_to_device(
const
char
* c,
int
n);
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virtual
int
buffer_from_device(
char
* c,
int
n);
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private
:
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std::streamsize
m_bufSize
;
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char
*
m_inputBuffer
;
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char
*
m_outputBuffer
;
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int
buffer_in();
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int
buffer_out();
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// prohibit copying and assigning
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// NO IMPLEMENTATION
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BaseStreamBuffer
(
const
BaseStreamBuffer
& arg);
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BaseStreamBuffer
&
operator=
(
const
BaseStreamBuffer
& arg);
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};
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}
// end namespace BLOCXX_NAMESPACE
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#endif
BLOCXX_NAMESPACE::BaseStreamBuffer
Definition
BaseStreamBuffer.hpp:58
BLOCXX_NAMESPACE::BaseStreamBuffer::EDirectionFlag
EDirectionFlag
Definition
BaseStreamBuffer.hpp:61
BLOCXX_NAMESPACE::BaseStreamBuffer::E_OUT
@ E_OUT
Definition
BaseStreamBuffer.hpp:63
BLOCXX_NAMESPACE::BaseStreamBuffer::E_IN
@ E_IN
Definition
BaseStreamBuffer.hpp:62
BLOCXX_NAMESPACE::BaseStreamBuffer::operator=
BaseStreamBuffer & operator=(const BaseStreamBuffer &arg)
BLOCXX_NAMESPACE::BaseStreamBuffer::m_outputBuffer
char * m_outputBuffer
Definition
BaseStreamBuffer.hpp:109
BLOCXX_NAMESPACE::BaseStreamBuffer::m_bufSize
std::streamsize m_bufSize
Definition
BaseStreamBuffer.hpp:107
BLOCXX_NAMESPACE::BaseStreamBuffer::BaseStreamBuffer
BaseStreamBuffer(const BaseStreamBuffer &arg)
BLOCXX_NAMESPACE::BaseStreamBuffer::m_inputBuffer
char * m_inputBuffer
Definition
BaseStreamBuffer.hpp:108
BLOCXX_NAMESPACE
Taken from RFC 1321.
Definition
AppenderLogger.cpp:48
BLOCXX_NAMESPACE::HTTP_BUF_SIZE
const size_t HTTP_BUF_SIZE
Definition
BaseStreamBuffer.hpp:56
BLOCXX_NAMESPACE::BASE_BUF_SIZE
const size_t BASE_BUF_SIZE
Definition
BaseStreamBuffer.hpp:55
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