fprime/Drv/TcpClient/TcpClientComponentImpl.cpp

// ======================================================================
// \title  TcpClientComponentImpl.cpp
// \author mstarch
// \brief  cpp file for TcpClientComponentImpl component implementation class
//
// \copyright
// Copyright 2009-2020, by the California Institute of Technology.
// ALL RIGHTS RESERVED.  United States Government Sponsorship
// acknowledged.
//
// ======================================================================

#include <limits>
#include <Drv/TcpClient/TcpClientComponentImpl.hpp>
#include <Fw/FPrimeBasicTypes.hpp>
#include "Fw/Types/Assert.hpp"


namespace Drv {

// ----------------------------------------------------------------------
// Construction, initialization, and destruction
// ----------------------------------------------------------------------

TcpClientComponentImpl::TcpClientComponentImpl(const char* const compName)
    : TcpClientComponentBase(compName) {}

SocketIpStatus TcpClientComponentImpl::configure(const char* hostname,
                                                 const U16 port,
                                                 const U32 send_timeout_seconds,
                                                 const U32 send_timeout_microseconds,
                                                 FwSizeType buffer_size) {

    // Check that ensures the configured buffer size fits within the limits fixed-width type, U32                                                
    FW_ASSERT(buffer_size <= std::numeric_limits<U32>::max(), static_cast<FwAssertArgType>(buffer_size));                                                   
    m_allocation_size = buffer_size; // Store the buffer size
    return m_socket.configure(hostname, port, send_timeout_seconds, send_timeout_microseconds);
}

TcpClientComponentImpl::~TcpClientComponentImpl() {}

// ----------------------------------------------------------------------
// Implementations for socket read task virtual methods
// ----------------------------------------------------------------------

IpSocket& TcpClientComponentImpl::getSocketHandler() {
    return m_socket;
}

Fw::Buffer TcpClientComponentImpl::getBuffer() {
    return allocate_out(0, static_cast<U32>(m_allocation_size));
}

void TcpClientComponentImpl::sendBuffer(Fw::Buffer buffer, SocketIpStatus status) {
    Drv::ByteStreamStatus recvStatus = ByteStreamStatus::OTHER_ERROR;
    if (status == SOCK_SUCCESS) {
        recvStatus = ByteStreamStatus::OP_OK;
    }
    else if (status == SOCK_NO_DATA_AVAILABLE) {
        recvStatus = ByteStreamStatus::RECV_NO_DATA;
    }
    else {
        recvStatus = ByteStreamStatus::OTHER_ERROR;
    }
    this->recv_out(0, buffer, recvStatus);
}

void TcpClientComponentImpl::connected() {
    if (isConnected_ready_OutputPort(0)) {
        this->ready_out(0);
    }

}

// ----------------------------------------------------------------------
// Handler implementations for user-defined typed input ports
// ----------------------------------------------------------------------

void TcpClientComponentImpl::send_handler(const FwIndexType portNum, Fw::Buffer& fwBuffer) {
    Drv::SocketIpStatus status = send(fwBuffer.getData(), fwBuffer.getSize());
    Drv::ByteStreamStatus returnStatus;
    switch (status) {
        case SOCK_INTERRUPTED_TRY_AGAIN:
            returnStatus = ByteStreamStatus::SEND_RETRY;
            break;
        case SOCK_SUCCESS:
            returnStatus = ByteStreamStatus::OP_OK;
            break;
        default:
            returnStatus = ByteStreamStatus::OTHER_ERROR;
            break;
    }
    // Return the buffer and status to the caller
    this->dataReturnOut_out(0, fwBuffer, returnStatus);
}

}  // end namespace Drv