Method Receive

examples/ThirdPartyLibs/clsocket/src/SimpleSocket.cpp:698–807

------------------------------------------------------------------------------ Receive() - Attempts to receive a block of data on an established connection. Data is received in an internal buffer managed by the class. This buffer is only valid until the next call to Receive(), a call to Close(), or until the object goes out of scope. ----------------------------------------------------------

//
//------------------------------------------------------------------------------
int32 CSimpleSocket::Receive(int32 nMaxBytes, uint8 *pBuffer)
{
	m_nBytesReceived = 0;

	//--------------------------------------------------------------------------
	// If the socket is invalid then return false.
	//--------------------------------------------------------------------------
	if (IsSocketValid() == false)
	{
		return m_nBytesReceived;
	}

	uint8 *pWorkBuffer = pBuffer;
	if (pBuffer == NULL)
	{
		//--------------------------------------------------------------------------
		// Free existing buffer and allocate a new buffer the size of
		// nMaxBytes.
		//--------------------------------------------------------------------------
		if ((m_pBuffer != NULL) && (nMaxBytes != m_nBufferSize))
		{
			delete[] m_pBuffer;
			m_pBuffer = NULL;
		}

		//--------------------------------------------------------------------------
		// Allocate a new internal buffer to receive data.
		//--------------------------------------------------------------------------
		if (m_pBuffer == NULL)
		{
			m_nBufferSize = nMaxBytes;
			m_pBuffer = new uint8[nMaxBytes];
		}

		pWorkBuffer = m_pBuffer;
	}

	SetSocketError(SocketSuccess);

	m_timer.Initialize();
	m_timer.SetStartTime();

	switch (m_nSocketType)
	{
			//----------------------------------------------------------------------
			// If zero bytes are received, then return.  If SocketERROR is
			// received, free buffer and return CSocket::SocketError (-1) to caller.
			//----------------------------------------------------------------------
		case CSimpleSocket::SocketTypeTcp:
		{
			do
			{
				m_nBytesReceived = RECV(m_socket, (pWorkBuffer + m_nBytesReceived),
										nMaxBytes, m_nFlags);
				TranslateSocketError();
			} while ((GetSocketError() == CSimpleSocket::SocketInterrupted));

			break;