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183 lines (133 loc) · 3 KB
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//
// HTTPFixedLengthStream.cpp
//
// $Id: //poco/1.4/Net/src/HTTPFixedLengthStream.cpp#1 $
//
// Library: Net
// Package: HTTP
// Module: HTTPFixedLengthStream
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Net/HTTPFixedLengthStream.h"
#include "Poco/Net/HTTPSession.h"
using Poco::BufferedStreamBuf;
namespace Poco {
namespace Net {
//
// HTTPFixedLengthStreamBuf
//
HTTPFixedLengthStreamBuf::HTTPFixedLengthStreamBuf(HTTPSession& session, ContentLength length, openmode mode):
HTTPBasicStreamBuf(HTTPBufferAllocator::BUFFER_SIZE, mode),
_session(session),
_length(length),
_count(0)
{
}
HTTPFixedLengthStreamBuf::~HTTPFixedLengthStreamBuf()
{
}
int HTTPFixedLengthStreamBuf::readFromDevice(char* buffer, std::streamsize length)
{
int n = 0;
if (_count < _length)
{
if (_count + length > _length)
length = static_cast<std::streamsize>(_length - _count);
n = _session.read(buffer, length);
if (n > 0) _count += n;
}
return n;
}
int HTTPFixedLengthStreamBuf::writeToDevice(const char* buffer, std::streamsize length)
{
int n = 0;
if (_count < _length)
{
if (_count + length > _length)
length = static_cast<std::streamsize>(_length - _count);
n = _session.write(buffer, length);
if (n > 0) _count += n;
}
return n;
}
//
// HTTPFixedLengthIOS
//
HTTPFixedLengthIOS::HTTPFixedLengthIOS(HTTPSession& session, HTTPFixedLengthStreamBuf::ContentLength length, HTTPFixedLengthStreamBuf::openmode mode):
_buf(session, length, mode)
{
poco_ios_init(&_buf);
}
HTTPFixedLengthIOS::~HTTPFixedLengthIOS()
{
try
{
_buf.sync();
}
catch (...)
{
}
}
HTTPFixedLengthStreamBuf* HTTPFixedLengthIOS::rdbuf()
{
return &_buf;
}
//
// HTTPFixedLengthInputStream
//
Poco::MemoryPool HTTPFixedLengthInputStream::_pool(sizeof(HTTPFixedLengthInputStream));
HTTPFixedLengthInputStream::HTTPFixedLengthInputStream(HTTPSession& session, HTTPFixedLengthStreamBuf::ContentLength length):
HTTPFixedLengthIOS(session, length, std::ios::in),
std::istream(&_buf)
{
}
HTTPFixedLengthInputStream::~HTTPFixedLengthInputStream()
{
}
void* HTTPFixedLengthInputStream::operator new(std::size_t size)
{
return _pool.get();
}
void HTTPFixedLengthInputStream::operator delete(void* ptr)
{
try
{
_pool.release(ptr);
}
catch (...)
{
poco_unexpected();
}
}
//
// HTTPFixedLengthOutputStream
//
Poco::MemoryPool HTTPFixedLengthOutputStream::_pool(sizeof(HTTPFixedLengthOutputStream));
HTTPFixedLengthOutputStream::HTTPFixedLengthOutputStream(HTTPSession& session, HTTPFixedLengthStreamBuf::ContentLength length):
HTTPFixedLengthIOS(session, length, std::ios::out),
std::ostream(&_buf)
{
}
HTTPFixedLengthOutputStream::~HTTPFixedLengthOutputStream()
{
}
void* HTTPFixedLengthOutputStream::operator new(std::size_t size)
{
return _pool.get();
}
void HTTPFixedLengthOutputStream::operator delete(void* ptr)
{
try
{
_pool.release(ptr);
}
catch (...)
{
poco_unexpected();
}
}
} } // namespace Poco::Net