TTServer/cpp/src/base/BaseSocket.cpp at master · codeindeep/TTServer · GitHub

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#include "BaseSocket.h"

#include "EventDispatch.h"

typedef hash_map<net_handle_t, CBaseSocket*> SocketMap;

SocketMap g_socket_map;

void AddBaseSocket(CBaseSocket* pSocket)

{

g_socket_map.insert(make_pair((net_handle_t)pSocket->GetSocket(), pSocket));

}

void RemoveBaseSocket(CBaseSocket* pSocket)

{

g_socket_map.erase((net_handle_t)pSocket->GetSocket());

}

CBaseSocket* FindBaseSocket(net_handle_t fd)

{

CBaseSocket* pSocket = NULL;

SocketMap::iterator iter = g_socket_map.find(fd);

if (iter != g_socket_map.end())

{

pSocket = iter->second;

pSocket->AddRef();

}

return pSocket;

}

//////////////////////////////

CBaseSocket::CBaseSocket()

{

//log("CBaseSocket::CBaseSocket\n");

m_socket = INVALID_SOCKET;

m_state = SOCKET_STATE_IDLE;

}

CBaseSocket::~CBaseSocket()

{

//log("CBaseSocket::~CBaseSocket, socket=%d\n", m_socket);

}

int CBaseSocket::Listen(const char* server_ip, uint16_t port, callback_t callback, void* callback_data)

{

m_local_ip = server_ip;

m_local_port = port;

m_callback = callback;

m_callback_data = callback_data;

m_socket = socket(AF_INET, SOCK_STREAM, 0);

if (m_socket == INVALID_SOCKET)

{

printf("socket failed, err_code=%d\n", _GetErrorCode());

return NETLIB_ERROR;

}

_SetReuseAddr(m_socket);

_SetNonblock(m_socket);

sockaddr_in serv_addr;

_SetAddr(server_ip, port, &serv_addr);

int ret = bind(m_socket, (sockaddr*)&serv_addr, sizeof(serv_addr));

if (ret == SOCKET_ERROR)

{

log("bind failed, err_code=%d\n", _GetErrorCode());

closesocket(m_socket);

return NETLIB_ERROR;

}

ret = listen(m_socket, 64);

if (ret == SOCKET_ERROR)

{

log("listen failed, err_code=%d\n", _GetErrorCode());

closesocket(m_socket);

return NETLIB_ERROR;

}

m_state = SOCKET_STATE_LISTENING;

//log("CBaseSocket::Listen on %s:%d\n", server_ip, port);

AddBaseSocket(this);

CEventDispatch::Instance()->AddEvent(m_socket, SOCKET_READ | SOCKET_EXCEP);

return NETLIB_OK;

}

net_handle_t CBaseSocket::Connect(const char* server_ip, uint16_t port, callback_t callback, void* callback_data)

{

log("CBaseSocket::Connect, server_ip=%s, port=%d\n", server_ip, port);

m_remote_ip = server_ip;

m_remote_port = port;

m_callback = callback;

m_callback_data = callback_data;

m_socket = socket(AF_INET, SOCK_STREAM, 0);

if (m_socket == INVALID_SOCKET)

{

log("socket failed, err_code=%d\n", _GetErrorCode());

return NETLIB_INVALID_HANDLE;

}

_SetNonblock(m_socket);

_SetNoDelay(m_socket);

sockaddr_in serv_addr;

_SetAddr(server_ip, port, &serv_addr);

int ret = connect(m_socket, (sockaddr*)&serv_addr, sizeof(serv_addr));

if ( (ret == SOCKET_ERROR) && (!_IsBlock(_GetErrorCode())) )

{

log("connect failed, err_code=%d\n", _GetErrorCode());

closesocket(m_socket);

return NETLIB_INVALID_HANDLE;

}

m_state = SOCKET_STATE_CONNECTING;

AddBaseSocket(this);

CEventDispatch::Instance()->AddEvent(m_socket, SOCKET_ALL);

return (net_handle_t)m_socket;

}

int CBaseSocket::Send(void* buf, int len)

{

if (m_state != SOCKET_STATE_CONNECTED)

return NETLIB_ERROR;

int ret = send(m_socket, (char*)buf, len, 0);

if (ret == SOCKET_ERROR)

{

int err_code = _GetErrorCode();

if (_IsBlock(err_code))

{

#if ((defined _WIN32) || (defined __APPLE__))

CEventDispatch::Instance()->AddEvent(m_socket, SOCKET_WRITE);

#endif

ret = 0;

//log("socket send block fd=%d\n", m_socket);

}

else

{

log("!!!send failed, error code: %d\n", err_code);

}

return ret;

}

int CBaseSocket::Recv(void* buf, int len)

{

return recv(m_socket, (char*)buf, len, 0);

}

int CBaseSocket::Close()

{

CEventDispatch::Instance()->RemoveEvent(m_socket, SOCKET_ALL);

RemoveBaseSocket(this);

closesocket(m_socket);

ReleaseRef();

return 0;

}

void CBaseSocket::OnRead()

{

if (m_state == SOCKET_STATE_LISTENING)

{

_AcceptNewSocket();

}

else

{

u_long avail = 0;

if ( (ioctlsocket(m_socket, FIONREAD, &avail) == SOCKET_ERROR) || (avail == 0) )

{

m_callback(m_callback_data, NETLIB_MSG_CLOSE, (net_handle_t)m_socket, NULL);

}

else

{

m_callback(m_callback_data, NETLIB_MSG_READ, (net_handle_t)m_socket, NULL);

}

void CBaseSocket::OnWrite()

{

#if ((defined _WIN32) || (defined __APPLE__))

CEventDispatch::Instance()->RemoveEvent(m_socket, SOCKET_WRITE);

#endif

if (m_state == SOCKET_STATE_CONNECTING)

{

int error = 0;

unsigned int len = sizeof(error);

getsockopt(m_socket, SOL_SOCKET, SO_ERROR, (void*)&error, &len);

if (error) {

m_callback(m_callback_data, NETLIB_MSG_CLOSE, (net_handle_t)m_socket, NULL);

} else {

m_state = SOCKET_STATE_CONNECTED;

m_callback(m_callback_data, NETLIB_MSG_CONFIRM, (net_handle_t)m_socket, NULL);

}

else

{

m_callback(m_callback_data, NETLIB_MSG_WRITE, (net_handle_t)m_socket, NULL);

}

void CBaseSocket::OnClose()

{

m_state = SOCKET_STATE_CLOSING;

m_callback(m_callback_data, NETLIB_MSG_CLOSE, (net_handle_t)m_socket, NULL);

}

void CBaseSocket::SetSendBufSize(uint32_t send_size)

{

int ret = setsockopt(m_socket, SOL_SOCKET, SO_SNDBUF, &send_size, 4);

if (ret == SOCKET_ERROR) {

log("set SO_SNDBUF failed for fd=%d\n", m_socket);

}

socklen_t len = 4;

int size = 0;

getsockopt(m_socket, SOL_SOCKET, SO_SNDBUF, &size, &len);

log("socket=%d send_buf_size=%d\n", m_socket, size);

}

void CBaseSocket::SetRecvBufSize(uint32_t recv_size)

{

int ret = setsockopt(m_socket, SOL_SOCKET, SO_RCVBUF, &recv_size, 4);

if (ret == SOCKET_ERROR) {

log("set SO_RCVBUF failed for fd=%d\n", m_socket);

}

socklen_t len = 4;

int size = 0;

getsockopt(m_socket, SOL_SOCKET, SO_RCVBUF, &size, &len);

log("socket=%d recv_buf_size=%d\n", m_socket, size);

}

int CBaseSocket::_GetErrorCode()

{

#ifdef _WIN32

return WSAGetLastError();

#else

return errno;

#endif

}

bool CBaseSocket::_IsBlock(int error_code)

{

#ifdef _WIN32

return ( (error_code == WSAEINPROGRESS) || (error_code == WSAEWOULDBLOCK) );

#else

return ( (error_code == EINPROGRESS) || (error_code == EWOULDBLOCK) );

#endif

}

void CBaseSocket::_SetNonblock(SOCKET fd)

{

#ifdef _WIN32

u_long nonblock = 1;

int ret = ioctlsocket(fd, FIONBIO, &nonblock);

#else

int ret = fcntl(fd, F_SETFL, O_NONBLOCK | fcntl(fd, F_GETFL));

#endif

if (ret == SOCKET_ERROR)

{

log("_SetNonblock failed, err_code=%d\n", _GetErrorCode());

}

void CBaseSocket::_SetReuseAddr(SOCKET fd)

{

BOOL reuse = TRUE;

int ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&reuse, sizeof(reuse));

if (ret == SOCKET_ERROR)

{

log("_SetReuseAddr failed, err_code=%d\n", _GetErrorCode());

}

void CBaseSocket::_SetNoDelay(SOCKET fd)

{

BOOL nodelay = TRUE;

int ret = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char*)&nodelay, sizeof(nodelay));

if (ret == SOCKET_ERROR)

{

log("_SetNoDelay failed, err_code=%d\n", _GetErrorCode());

}

void CBaseSocket::_SetAddr(const char* ip, const uint16_t port, sockaddr_in* pAddr)

{

memset(pAddr, 0, sizeof(sockaddr_in));

pAddr->sin_family = AF_INET;

pAddr->sin_port = htons(port);

pAddr->sin_addr.s_addr = inet_addr(ip);

if (pAddr->sin_addr.s_addr == INADDR_NONE)

{

hostent* host = gethostbyname(ip);

if (host == NULL)

{

log("gethostbyname failed, ip=%s\n", ip);

return;

}

pAddr->sin_addr.s_addr = *(uint32_t*)host->h_addr;

}

void CBaseSocket::_AcceptNewSocket()

{

SOCKET fd = 0;

sockaddr_in peer_addr;

socklen_t addr_len = sizeof(sockaddr_in);

char ip_str[64];

while ( (fd = accept(m_socket, (sockaddr*)&peer_addr, &addr_len)) != INVALID_SOCKET )

{

CBaseSocket* pSocket = new CBaseSocket();

uint32_t ip = ntohl(peer_addr.sin_addr.s_addr);

uint16_t port = ntohs(peer_addr.sin_port);

snprintf(ip_str, sizeof(ip_str), "%d.%d.%d.%d", ip >> 24, (ip >> 16) & 0xFF, (ip >> 8) & 0xFF, ip & 0xFF);

//log("AcceptNewSocket, socket=%d from %s:%d\n", fd, ip_str, port);

pSocket->SetSocket(fd);

pSocket->SetCallback(m_callback);

pSocket->SetCallbackData(m_callback_data);

pSocket->SetState(SOCKET_STATE_CONNECTED);

pSocket->SetRemoteIP(ip_str);

pSocket->SetRemotePort(port);

_SetNoDelay(fd);

_SetNonblock(fd);

AddBaseSocket(pSocket);

CEventDispatch::Instance()->AddEvent(fd, SOCKET_READ | SOCKET_EXCEP);

m_callback(m_callback_data, NETLIB_MSG_CONNECT, (net_handle_t)fd, NULL);

}

TTServer/cpp/src/base/BaseSocket.cpp at master · codeindeep/TTServer · GitHub

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