Exemplo n.º 1
0
HRESULT Read(SOCKET socket, MemoryBuffer& buffer)
{
	const size_t position = buffer.GetPosition();
	const size_t size = buffer.GetSize();

	int length = static_cast<int>(size - position);

	char* data = reinterpret_cast<char*>(buffer.GetData()) + position;

	const int status = recv(socket, data, length, 0);

	if (status <= 0)
	{
		const DWORD code = WSAGetLastError();
		const HRESULT result = (WSAEWOULDBLOCK == code) ? S_FALSE : E_FAIL;
		return result;
	}
	length -= status;
	buffer.SetPosition(position + status);

	if (length > 0)
	{
		return S_FALSE;
	}
	return S_OK;
}
Exemplo n.º 2
0
HRESULT CLrpStClientImpl::Invoke(MemoryBuffer& buffer)
{
	uint32 size = static_cast<uint32>(buffer.GetSize());
	if (size < sizeof(uint32))
	{
		throw runtime_error("Input buffer is too small");
	}
	buffer.SetPosition(0);
	WriteInt32(size - 4, buffer);

	buffer.SetPosition(12);

	uint16 componentId = ReadUInt16(buffer);
	uint16 methodId = ReadUInt16(buffer);
	Translate(componentId, methodId);

	buffer.SetPosition(12);
	WriteUInt16(componentId, buffer);
	WriteUInt16(methodId, buffer);

	CTimeout timeout(m_operationTimeoutInMs);

	if (!SendEx(m_socket, timeout, buffer.GetData(), buffer.GetSize()))
	{
		closesocket(m_socket);
		m_socket = INVALID_SOCKET;
		throw runtime_error("Couldn't send data");
	}
	if (!ReceiveEx(m_socket, timeout, buffer))
	{
		closesocket(m_socket);
		m_socket = INVALID_SOCKET;
		throw runtime_error("Couldn't receive data");
	}
	buffer.SetPosition(12);
	const HRESULT result = ReadInt32(buffer);
	return result;
}
Exemplo n.º 3
0
HRESULT Write(SOCKET socket, MemoryBuffer& buffer)
{
	const size_t position = buffer.GetPosition();
	const size_t size = buffer.GetSize();

	int length = static_cast<int>(size - position);

	const char* data = reinterpret_cast<const char*>(buffer.GetData()) + position;

	const int status = send(socket, data, length, 0);

	if (status < 0)
	{
		return E_FAIL;
	}
	length -= status;
	buffer.SetPosition(position + status);

	if (length > 0)
	{
		return S_FALSE;
	}
	return S_OK;
}