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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
#include "API/Network/NetSession/netstream.h"
#include "API/Network/NetSession/netsession.h"
#include "netstream_generic.h"
#include "netsession_generic.h"
#include "netcomputer_generic.h"
#include <cstring>
/////////////////////////////////////////////////////////////////////////////
// CL_NetStream construction:
CL_NetStream::CL_NetStream(
const std::string &netstream,
CL_NetComputer &dest)
: impl(new CL_NetStream_Generic(netstream, dest, dest.impl->netsession))
{
input.netstream = impl;
output.netstream = impl;
if (impl) impl->add_ref();
}
CL_NetStream::CL_NetStream(const CL_NetStream ©)
: impl(copy.impl)
{
input.netstream = impl;
output.netstream = impl;
if (impl) impl->add_ref();
}
CL_NetStream::~CL_NetStream()
{
if (impl) impl->release_ref();
}
/////////////////////////////////////////////////////////////////////////////
// CL_NetStream attributes:
CL_EventTrigger *CL_NetStream::get_read_trigger()
{
return &impl->read_trigger;
}
CL_EventTrigger *CL_NetStream::get_write_trigger()
{
return &impl->write_trigger;
}
CL_NetComputer CL_NetStream::get_computer()
{
return impl->computer;
}
/////////////////////////////////////////////////////////////////////////////
// CL_NetStream operations:
CL_NetStream &CL_NetStream::operator =(const CL_NetStream ©)
{
if (impl) impl->release_ref();
impl = copy.impl;
if (impl) impl->add_ref();
input.netstream = impl;
output.netstream = impl;
return *this;
}
int CL_NetStream::send(const void *data, int size)
{
if (impl->closed) return 0;
impl->computer->send_stream_message(impl->channel_id, std::string((const char *) data, size));
return size;
}
#define cl_min(a, b) ((a < b) ? a : b)
int CL_NetStream::recv(void *data, int size)
{
char *_data = (char *) data;
int received = 0;
while (true)
{
impl->read_trigger.wait();
CL_MutexSection mutex_section(&impl->mutex);
while (!impl->receive_queue.empty())
{
std::string &chunk = impl->receive_queue.front();
std::string::size_type copy_size = cl_min(static_cast<unsigned int>(size-received), chunk.length());
memcpy(_data + received, chunk.data(), copy_size);
received += copy_size;
if (copy_size == chunk.length()) impl->receive_queue.pop();
else chunk = chunk.substr(copy_size);
if (received == size) return received;
}
if (impl->closed) return received;
impl->read_trigger.reset();
}
return received;
}
/////////////////////////////////////////////////////////////////////////////
// CL_NetStream implementation:
CL_NetStream::CL_NetStream(CL_NetStream_Generic *impl)
: impl(impl)
{
input.netstream = impl;
output.netstream = impl;
if (impl) impl->add_ref();
}
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