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/*
$Id: unix_pipe_connection.cpp,v 1.1 2001/02/15 13:18:52 mbn Exp $
------------------------------------------------------------------------
ClanLib, the platform independent game SDK.
This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
version 2. See COPYING for details.
For a total list of contributers see CREDITS.
------------------------------------------------------------------------
*/
#include "Core/precomp.h"
#ifdef USE_NETWORK
#include <API/Core/System/error.h>
#include "API/Core/System/cl_assert.h"
#include <Core/Network/Generic/network_delivery_impl.h>
#include <Core/Network/Unix/network_delivery_unix.h>
#include <Core/Network/Unix/network_delivery_pipe.h>
#include <string.h>
#include <errno.h>
/******************************************************************************
Unix PipeConnection implementation
******************************************************************************/
CL_UnixPipeConnection::CL_UnixPipeConnection(int _read, int _write)
{
read = _read;
write = _write;
is_connection_lost = false;
}
CL_UnixPipeConnection::~CL_UnixPipeConnection()
{
close(read);
close(write);
}
bool CL_UnixPipeConnection::peek()
{
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(read, &rfds);
timeval timeout;
memset(&timeout, 0, sizeof(timeval));
int retval = select(read+1, &rfds, NULL, NULL, &timeout);
return retval > 0;
}
CL_ConnectionPacket CL_UnixPipeConnection::receive()
{
unsigned long size_data = read_int();
unsigned char *data = new unsigned char[size_data];
read_data(data, size_data);
CL_ConnectionPacket ret;
ret.size = size_data;
ret.data = data;
return ret;
}
void CL_UnixPipeConnection::send(CL_ConnectionPacket message)
{
write_int(message.size);
write_data(message.data, message.size);
}
bool CL_UnixPipeConnection::connection_lost()
{
return is_connection_lost;
}
unsigned long CL_UnixPipeConnection::read_int()
{
unsigned long ret;
read_data(&ret, sizeof(unsigned long));
return ret;
}
void CL_UnixPipeConnection::read_data(void *dest, int size_data)
{
int total_read = 0;
while (total_read < size_data)
{
int res = ::read(
read,
((unsigned char *) dest)+total_read,
size_data-total_read);
if (res == 0)
{
std::cout << "OH MY GOD - TIME TO QUIT" << std::endl;
is_connection_lost = true;
return;
}
total_read += res;
}
}
void CL_UnixPipeConnection::write_int(unsigned long value)
{
write_data(&value, sizeof(unsigned long));
}
inline void CL_UnixPipeConnection::write_data(void *data, unsigned int size)
{
::write(write, data, size);
}
#endif // USE_NETWORK
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