httpstream.cpp.svn-base

来自「很好用的网络封装库,不熟悉网络编程的人也可以使用。使用风格良好的标准c++编写。」· SVN-BASE 代码 · 共 181 行

//
// HTTPStream.cpp
//
// $Id: //poco/1.3/Net/src/HTTPStream.cpp#2 $
//
// Library: Net
// Package: HTTP
// Module:  HTTPStream
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#include "Poco/Net/HTTPStream.h"
#include "Poco/Net/HTTPSession.h"


namespace Poco {
namespace Net {


//
// HTTPStreamBuf
//


HTTPStreamBuf::HTTPStreamBuf(HTTPSession& session, openmode mode):
	HTTPBasicStreamBuf(HTTPBufferAllocator::BUFFER_SIZE, mode),
	_session(session),
	_mode(mode)
{
}


HTTPStreamBuf::~HTTPStreamBuf()
{
}


void HTTPStreamBuf::close()
{
	if (_mode & std::ios::out)
	{
		sync();
		_session.socket().shutdownSend();
	}
}


int HTTPStreamBuf::readFromDevice(char* buffer, std::streamsize length)
{
	return _session.read(buffer, length);
}


int HTTPStreamBuf::writeToDevice(const char* buffer, std::streamsize length)
{

	return _session.write(buffer, length);
}


//
// HTTPIOS
//


HTTPIOS::HTTPIOS(HTTPSession& session, HTTPStreamBuf::openmode mode):
	_buf(session, mode)
{
	poco_ios_init(&_buf);
}


HTTPIOS::~HTTPIOS()
{
	try
	{
		_buf.close();
	}
	catch (...)
	{
	}
}


HTTPStreamBuf* HTTPIOS::rdbuf()
{
	return &_buf;
}


//
// HTTPInputStream
//


Poco::MemoryPool HTTPInputStream::_pool(sizeof(HTTPInputStream));


HTTPInputStream::HTTPInputStream(HTTPSession& session):
	HTTPIOS(session, std::ios::in),
	std::istream(&_buf)
{
}


HTTPInputStream::~HTTPInputStream()
{
}


void* HTTPInputStream::operator new(std::size_t size)
{
	return _pool.get();
}


void HTTPInputStream::operator delete(void* ptr)
{
	_pool.release(ptr);
}


//
// HTTPOutputStream
//


Poco::MemoryPool HTTPOutputStream::_pool(sizeof(HTTPOutputStream));


HTTPOutputStream::HTTPOutputStream(HTTPSession& session):
	HTTPIOS(session, std::ios::out),
	std::ostream(&_buf)
{
}


HTTPOutputStream::~HTTPOutputStream()
{
}


void* HTTPOutputStream::operator new(std::size_t size)
{
	return _pool.get();
}


void HTTPOutputStream::operator delete(void* ptr)
{
	_pool.release(ptr);
}


} } // namespace Poco::Net