RE: RTOS/MSP432E401Y: semaphore for UART read

void tcpworker(uint32_t arg0, uint32_t arg1)
{
    int  clientfd = (int)arg0;
    int  bytesRcvd;
//    int  bytesSent;
//    char buffer[TCPPACKETSIZE];

    UART_read(uart4, &buffer1, 1);
    while(1)
    {
        while((bytesRcvd = recv(clientfd, buffer, TCPPACKETSIZE, 0)) > 0)          // Ethernet 2 serial
        {
            //  bytesSent = send(clientfd, buffer, bytesRcvd, 0);
            UART_write(uart4, &buffer, bytesRcvd);
        }

        if(Rx_flag  ==  1)
        {
            send(clientfd, buffer1, 1, 0);                                       // Serial 2 Ethernet
            Rx_flag =   0;
        }

    }

    close(clientfd);
}


/*********** tcp worker2 for Serial to Ethernet transmission  ***********************/
//void Serial2Ethernet(uint32_t arg0, uint32_t arg1)
//{
//    int  clientfd = (int)arg0;
//    if(UART_read(uart4, &buffer, 1) >   0)
//    {
//        send(clientfd, buffer, 1, 0);
//    }
//
////    UART_readCancel(uart4);
////    UART_read(uart4, &buffer, 1);
////    if(Rx_flag  ==  1)
////    {
////        send(clientfd, buffer, 1, 0);
////    }
//    close(clientfd);
//}

/************* uart read ready function  ********************************/
void uart4_read_ready_fxn(UART_Handle uart4, void *buffer, size_t num)
{
//    send(clientfd_Rx, buffer1, 1, 0);
    Rx_flag =   1;
//    UART_readCancel(uart4);
}