bool ClientSession::PostRecv()
{
if ( !IsConnected() )
{
return false;
}
DWORD recvbytes = 0;
DWORD flags = 0;
WSABUF buf;
buf.len = (ULONG)m_RecvBuffer.GetFreeSpaceSize();
buf.buf = (char*)m_RecvBuffer.GetBuffer();
memset( &m_OverlappedRecv, 0, sizeof( OverlappedIO ) );
// 비동기 입력 호출이 완료 되었을 때 콜백 함수가 실행 되면
// 어느 호출이 부른 것인지를 식별하기 위해
// ClientSession* 를 담고 있는 멤버변수 mObject에 this (현재 객체) 주소 대입
m_OverlappedRecv.m_Object = this;
/// 비동기 입출력 시작
if ( SOCKET_ERROR == WSARecv( m_Socket, &buf, 1, &recvbytes, &flags, &m_OverlappedRecv, RecvCompletion ) )
{
if ( WSAGetLastError() != WSA_IO_PENDING )
{
return false;
}
}
// Overlapped IO 요청 했음. 카운트 증가
IncOverlappedRequest();
return true;
}
bool ClientSession::PostRecv()
{
if ( !IsConnected() )
return false;
DWORD recvbytes = 0;
DWORD flags = 0;
WSABUF buf;
buf.len = (ULONG)mRecvBuffer.GetFreeSpaceSize();
buf.buf = (char*)mRecvBuffer.GetBuffer();
memset( &mOverlappedRecv, 0, sizeof(OverlappedIO) );
mOverlappedRecv.mObject = this;
/// 비동기 입출력 시작
if ( SOCKET_ERROR == WSARecv(mSocket, &buf, 1, &recvbytes, &flags, &mOverlappedRecv, RecvCompletion) )
{
if ( WSAGetLastError() != WSA_IO_PENDING )
return false;
}
IncOverlappedRequest();
return true;
}
bool ClientSession::SendFlush()
{
if (!IsConnected())
return false;
/// 보낼 데이터가 없으면 그냥 리턴
if (mSendBuffer.GetContiguiousBytes() == 0)
return true;
DWORD sendbytes = 0;
DWORD flags = 0;
WSABUF buf;
buf.len = (ULONG)mSendBuffer.GetContiguiousBytes();
buf.buf = (char*)mSendBuffer.GetBufferStart();
memset(&mOverlappedSend, 0, sizeof(OverlappedIO));
mOverlappedSend.mObject = this;
// 비동기 입출력 시작
if (SOCKET_ERROR == WSASend(mSocket, &buf, 1, &sendbytes, flags, &mOverlappedSend, SendCompletion))
{
if (WSAGetLastError() != WSA_IO_PENDING)
return false;
}
IncOverlappedRequest();
//assert(buf.len == sendbytes);
return true;
}
bool ClientSession::Send(PacketHeader* pkt)
{
if ( !IsConnected() )
return false;
/// 버퍼 용량 부족인 경우는 끊어버림
if ( false == mSendBuffer.Write((char*)pkt, pkt->mSize) )
{
Disconnect();
return false;
}
/// 보낼 데이터가 있는지 검사
if ( mSendBuffer.GetContiguiousBytes() == 0 )
{
/// 방금전에 write 했는데, 데이터가 없다면 뭔가 잘못된 것
assert(false);
Disconnect();
return false;
}
DWORD sendbytes = 0;
DWORD flags = 0;
WSABUF buf;
buf.len = (ULONG)mSendBuffer.GetContiguiousBytes();
buf.buf = (char*)mSendBuffer.GetBufferStart();
memset( &mOverlappedSend, 0, sizeof(OverlappedIO) );
mOverlappedSend.mObject = this;
// 비동기 입출력 시작
if ( SOCKET_ERROR == WSASend(mSocket, &buf, 1, &sendbytes, flags, &mOverlappedSend, SendCompletion) )
{
if ( WSAGetLastError() != WSA_IO_PENDING )
return false;
}
IncOverlappedRequest();
return true;
}