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Copy pathKcpSession.cpp
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192 lines (156 loc) · 3.46 KB
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#include "KcpSession.h"
#include "UdpPacket.h"
#include "CommonPool.h"
#include "KcpEvent.h"
KcpSessionBase::KcpSessionBase():
__m_kcp(NULL)
{
}
KcpSessionBase::~KcpSessionBase()
{
}
ikcpcb* KcpSessionBase::init(uint32 session_id, const sockaddr * addr, uv_udp_t * udp)
{
__m_kcp = ikcp_create(session_id, (void *)this);
__m_kcp->output = KcpSessionBase::__kcpOutCallback;
memcpy((void *)&__m_addr, (const void *)addr, sizeof(sockaddr));
__m_udp = udp;
return __m_kcp;
}
void KcpSessionBase::destory()
{
if (__m_kcp != NULL)
{
ikcp_release(__m_kcp);
__m_kcp = NULL;
}
}
uint32 KcpSessionBase::getSessionId()
{
if (__m_kcp)
{
return __m_kcp->conv;
}
return 0;
}
uint32 KcpSessionBase::update(uint32 millisecond)
{
if (!__m_kcp)
return 0;
ikcp_update(__m_kcp, millisecond);
int peeksize = ikcp_peeksize(__m_kcp);
if (peeksize > 0)
{
UdpPacket * packet = _createPacket(peeksize);
if (ikcp_recv(__m_kcp, (char *)packet->contents(), peeksize) > 0)
{
packet->wpos(peeksize);
_onMsg(packet);
}
_recyclePacket(packet);
}
return ikcp_check(__m_kcp, millisecond);
}
int KcpSessionBase::send(const char * buf, int len)
{
return ikcp_send(__m_kcp, buf, len);
}
int KcpSessionBase::recv(const char * buf, long len)
{
return ikcp_input(__m_kcp, buf, len);
}
int KcpSessionBase::__kcpOutCallback(const char * buf, int len, struct IKCPCB *kcp, void *user)
{
KcpSessionBase * session = static_cast<KcpSessionBase *>(user);
return session->__udpSend(buf, len);
}
int KcpSessionBase::__udpSend(const char * buf, int len)
{
uv_buf_t msg = uv_buf_init((char *)buf, len);
return uv_udp_try_send(__m_udp, &msg, 1, &__m_addr);
}
void KcpSessionBase::flushKcp()
{
// 每次发送完调用flush，把数据刷出去，否则要下次update才出的去
if (__m_kcp) ikcp_flush(__m_kcp);
}
const ikcpcb* KcpSessionBase::getKcp()
{
return __m_kcp;
}
void KcpSessionBase::setStream()
{
// 设置成流模式后，上层逻辑需要处理消息包的边界
if (__m_kcp) __m_kcp->stream = 1;
}
//---------------------------------------------------------------
#include "XTime.h"
KcpSession::KcpSession(KcpEvent * event_, uint32 timeout) :
__m_kcpEvent(event_),
__m_nTimeout(timeout),
__m_nUpdateTime(0)
{
__userdata = NULL;
}
KcpSession::~KcpSession()
{
}
void KcpSession::start(uint32 ms)
{
__m_nTalkTime = XTime::iclock();
__m_timer.start(std::bind(&KcpSession::update, this), ms, ms);
}
void KcpSession::over()
{
__m_timer.stop();
}
void KcpSession::update()
{
uint32 currt = XTime::iclock();
if (currt >= __m_nUpdateTime)
{
__m_nUpdateTime = KcpSessionBase::update(currt);
}
if (currt > __m_nTalkTime + __m_nTimeout)
{
if (__m_kcpEvent)
__m_kcpEvent->onUdpTimeout(this);
}
}
void KcpSession::updateKcp()
{
uint32 currt = XTime::iclock();
__m_nUpdateTime = KcpSessionBase::update(currt);
}
UdpPacket * KcpSession::_createPacket(int size)
{
UdpPacket * packet = new UdpPacket;
if (size > 0)
{
packet->initSize(size);
}
return packet;
}
void KcpSession::_recyclePacket(UdpPacket * packet)
{
delete packet;
}
void KcpSession::_onMsg(UdpPacket * packet)
{
__m_nTalkTime = XTime::iclock();
if (__m_kcpEvent)
__m_kcpEvent->onMsg(this, packet->getMsgType(), packet);
}
void KcpSession::sendMsg(uint32 msgtype, UdpPacket * pack)
{
pack->writeHead(msgtype);
send(pack->sendStream(), pack->sendSize());
flushKcp();
}
void KcpSession::sendMsg(uint32 msgtype, const char* msg, uint32 len)
{
UdpPacket *pack = _createPacket();
pack->append(msg, len);
sendMsg(msgtype, pack);
_recyclePacket(pack);
}