ModuleDevelopmentKit/TemplateSocket.cpp at master · GameProgressive/ModuleDevelopmentKit · GitHub

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/*
	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public License
	along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#defineMDK_EXPORT_FUNCTIONS1/*Export the methods*/
#include"TemplateSocket.h"

#include<string.h>
#include<uv.h>
#include<stdlib.h>

#include"Utility.h"

/* Prototypes */
intuv_udp_getpeername(constuv_udp_t* handle, structsockaddr* name, int* namelen);
voidlibuv_callback_allocate_buffer(uv_handle_t *handle, size_t size, uv_buf_t* buf);
voidlibuv_callback_on_close(uv_handle_t *handle);
voidlibuv_callback_when_tcp_write_finished(uv_write_t* req, int status);
voidlibuv_callback_when_udp_write_finished(uv_udp_send_t* req, int);

MDKDLLAPICTemplateSocket::CTemplateSocket()
{
	m_sockType = SOCKET_TCP;
	m_socket = NULL;

uv_loop_t* real_loop = (uv_loop_t*)malloc(sizeof(uv_loop_t));
uv_loop_init(real_loop);
	m_loop = (mdk_loop)real_loop;
}

MDKDLLAPICTemplateSocket::~CTemplateSocket()
{
if (m_socket)
free(m_socket);

if (m_loop)
	{
uv_loop_t* real_loop = (uv_loop_t*)m_loop;
while (uv_loop_close(real_loop) != UV_EBUSY);
free(real_loop);
	}

	m_loop = NULL;
	m_socket = NULL;
}

intMDKDLLAPICTemplateSocket::StartServer()
{
returnuv_run((uv_loop_t*)m_loop, UV_RUN_DEFAULT);
}

voidMDKDLLAPICTemplateSocket::Close(mdk_socket socket)
{
uv_close((uv_handle_t*)socket, libuv_callback_on_close);
}

voidMDKDLLAPICTemplateSocket::StopServer()
{
if (m_sockType == SOCKET_UDP)
	{
uv_udp_recv_stop((uv_udp_t*)m_socket);
	}

Close(m_socket);
uv_stop((uv_loop_t*)m_loop);
}

voidMDKDLLAPICTemplateSocket::WriteTCP(mdk_socket socket, void *data, size_t size)
{
uv_write_t *req = (uv_write_t*)malloc(sizeof(uv_write_t));
uv_buf_t buf;
uv_stream_t* real_socket = (uv_stream_t*)socket;

#ifdef _DEBUG
LOG_INFO("Socket", "TCP: Sending %s to client", (char*)data);
#endif
	buf.len = size;
	buf.base = (char*)data;

uv_write(req, real_socket, &buf, 1, libuv_callback_when_tcp_write_finished);
}

voidMDKDLLAPICTemplateSocket::WriteUDP(mdk_socket socket, void *data, size_t size, conststructsockaddr* addr)
{
uv_udp_send_t* req = (uv_udp_send_t*)malloc(sizeof(uv_udp_send_t));
uv_buf_t buf;

#ifdef _DEBUG
LOG_INFO("Socket", "UDP: Sending %s to client", (char*)data);
#endif
	buf.len = size;
	buf.base = (char*)data;

uv_udp_send(req, (uv_udp_t*)socket, &buf, 1, addr, libuv_callback_when_udp_write_finished);
}

voidMDKDLLAPICTemplateSocket::WriteUDP(mdk_socket socket, std::string str, conststructsockaddr* addr)
{
WriteUDP(socket, (void*)str.c_str(), str.length(), addr);
}

voidMDKDLLAPICTemplateSocket::WriteUDP(mdk_socket socket, constchar* data, conststructsockaddr* addr)
{
WriteUDP(socket, (void*)data, strlen(data), addr);
}

voidMDKDLLAPICTemplateSocket::WriteTCP(mdk_socket socket, std::string str)
{
WriteTCP(socket, (void*)str.c_str(), str.length());
}

voidMDKDLLAPICTemplateSocket::WriteTCP(mdk_socket socket, constchar* data)
{
WriteTCP(socket, (void*)data, strlen(data));
}

intMDKDLLAPICTemplateSocket::GetIPFromSocket(mdk_socket socket)
{
structsockaddr_in clientaddr;
socklen_t clientaddr_len;
uv_handle_t* real_socket = (uv_handle_t*)socket;
	CTemplateSocket* socket_ptr = NULL;

if (!real_socket->data)
return -1;

	socket_ptr = (CTemplateSocket*)real_socket->data;

if (socket_ptr->GetType() == SOCKET_UDP)
uv_udp_getpeername((constuv_udp_t*)socket, (structsockaddr*)&clientaddr, (int*)&clientaddr_len);
else
uv_tcp_getpeername((constuv_tcp_t*)socket, (structsockaddr*)&clientaddr, (int*)&clientaddr_len);

return clientaddr.sin_addr.s_addr;
}

MDKDLLAPI CClientData* CTemplateSocket::GetSocketExtraData(mdk_socket socket)
{
uv_stream_t* real_socket = (uv_stream_t*)socket;
return (CClientData*)real_socket->data;
}

/* Virtual functions */
MDKDLLAPIvoidCTemplateSocket::OnTCPRead(mdk_socket, constchar *, ssize_t) {}
MDKDLLAPIboolCTemplateSocket::OnTCPNewConnection(mdk_socket, int) { returntrue; }
MDKDLLAPIvoidCTemplateSocket::OnUDPRead(mdk_socket, conststructsockaddr* addr, constchar *, ssize_t) {}

// UV Callbacks
voidlibuv_callback_on_close(uv_handle_t* handle)
{
if (handle)
	{
// Remove the pointer of CTemplateSocket
if (handle->data)
 handle->data = NULL;

free(handle);
	}
}

voidlibuv_callback_when_tcp_write_finished(uv_write_t* req, int)
{
if (req)
free(req);
}

voidlibuv_callback_when_udp_write_finished(uv_udp_send_t* req, int)
{
if (req)
free(req);
}

voidlibuv_callback_allocate_buffer(uv_handle_t*, size_t size, uv_buf_t *buf)
{
	*buf = uv_buf_init((char*)malloc(size), size);
}

/* uv_udp_getpeername (since it dosen't exists in libUV)*/
#ifdef _WIN32
	#defines_addr S_un.S_addr

intuv_udp_getpeername(constuv_udp_t* handle, structsockaddr* name, int* namelen)
	{
int result;

if (handle->socket == INVALID_SOCKET) {
returnUV_EINVAL;
 }

 result = getpeername(handle->socket, name, namelen);
if (result != 0)
 {
returnuv_translate_sys_error(WSAGetLastError());
 }

return0;
	}
#else
//Internal definition
	#if defined(__APPLE__)
intuv___stream_fd(constuv_stream_t* handle);
 #defineuv__stream_fd(handle) (uv___stream_fd((constuv_stream_t*) (handle)))
	#else
 #defineuv__stream_fd(handle) ((handle)->io_watcher.fd)
	#endif/* defined(__APPLE__) */

intuv_udp_getpeername(constuv_udp_t* handle, structsockaddr* name, int* namelen)
	{
socklen_t socklen;

if (uv__stream_fd(handle) < 0)
returnUV_EINVAL; /* FIXME(bnoordhuis) UV_EBADF */

/* sizeof(socklen_t) != sizeof(int) on some systems. */
 socklen = (socklen_t) *namelen;

if (getpeername(uv__stream_fd(handle), name, &socklen))
return -errno;

 *namelen = (int) socklen;
return0;
	}
#endif
/* End of uv_udp_getpeername */