C++ (Cpp) sdGetWouldBlock Examples

Example #1

File: main.c Project: aithon/aithon

void flushInterface(void)
{
   // empty output buffer
   while (sdPutWouldBlock(_interface));

   // very small sleep to reduce chance of race conditions
   chThdSleepMilliseconds(1);

   // empty input buffer
   while (!sdGetWouldBlock(_interface))
      sdGet(_interface);
}

Example #2

File: vexlcd.c Project: Highway-Man/ConVEX-Installer

void
vexLcdCheckReceiveMessage( LcdData *lcd )
{
    int16_t i;

    // any characters
    if( sdGetWouldBlock(lcd->sdp) )
        return;

    // read up to 16 bytes from serial port
    for(i=0;i<16;i++)
        {
        int16_t c;

        c = sdGetTimeout( lcd->sdp, TIME_IMMEDIATE);
        if( c != Q_TIMEOUT )
            lcd->rxbuf[i] = c;
        else
            break;
        }

    // 6 chars ?
    if( i == 6 )
        {
        // lcd message ?
        if( (lcd->rxbuf[0] == 0xAA) && (lcd->rxbuf[1] == 0x55) && (lcd->rxbuf[2] == 0x16))
            // verify checksum
            if( !((lcd->rxbuf[4] + lcd->rxbuf[5]) & 0xFF) )
                lcd->buttons = lcd->rxbuf[4];
        }

    // flush anything left
    if( !sdGetWouldBlock(lcd->sdp) )
        {
        chSysLock();
        chIQResetI( &(lcd->sdp)->iqueue );
        chSysUnlock();
        }

}

Example #3

File: main.c Project: Impact2585/convex

static void
cmd_apollo( vexStream *chp, int argc, char *argv[])
{
    (void)argc;
    (void)argv;

    apolloInit();

    // run until any key press
    //while( chIOGetWouldBlock(chp) )
    while( sdGetWouldBlock((SerialDriver *)chp) )
        {
        apolloUpdate();

        //chThdSleepMilliseconds(50);
        }

    apolloDeinit();
}