Method serial_read

serial_port/serial_port.cpp:510–543

---------------------------------------------------------*\ | serial_read | | Reads bytes from the serial port into | | Returns the number of bytes actually read | | If less than bytes are available, it will read| | all available bytes | \*----------------------------

|    all available bytes                                    |
\*---------------------------------------------------------*/
int serial_port::serial_read(char * buffer, int length)
{
    /*-----------------------------------------------------*\
    | Windows-specific code path for serial read            |
    \*-----------------------------------------------------*/
#ifdef _WIN32
    DWORD bytesread;
    ReadFile(file_descriptor, buffer, length, &bytesread, NULL);
    return bytesread;
#endif

    /*-----------------------------------------------------*\
    | Linux-specific code path for serial read              |
    \*-----------------------------------------------------*/
#ifdef __linux__
    int bytesread;
    bytesread = read(file_descriptor, buffer, length);
    return bytesread;
#endif

    /*-----------------------------------------------------*\
    | MacOS-specific code path for serial read              |
    \*-----------------------------------------------------*/
#ifdef __APPLE__
    int bytesread;
    bytesread = read(file_descriptor, buffer, length);
    return bytesread;
#endif

    /*-----------------------------------------------------*\
    | Return 0 on unsupported platforms                     |
    \*-----------------------------------------------------*/
    return 0;
}

/*---------------------------------------------------------*\
|  serial_write                                             |