osdTime.h File Reference

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Functions
void	osdTimeRegister (void)
void	osdNTPInit (void)
int	osdNTPGet (struct timespec *)
void	osdNTPReport (void)
int	osdTickRateGet (void)
int	osdTickGet (void)

Function Documentation

int osdNTPGet

(

struct timespec *

)

Definition at line 45 of file osdTime.cpp.

{
    static unsigned bequiet;
    ssize_t ret;

    if (ntpSocket < 0)
        return -1;

    /* rtems_bsdnet_get_ntp() will send an NTP request, then
     * call recvfrom() exactly once to process the expected reply.
     * Any leftovers in the socket buffer (ie. duplicates of
     * previous replies) will cause problems.
     * So flush out the socket buffer first.
     */
    do {
        char junk[16];

        ret = recvfrom(ntpSocket, junk, sizeof(junk), MSG_DONTWAIT, NULL, NULL);
        if (ret == -1 && errno == EAGAIN) {
            break;
        }
        else if (ret == -1) {
            if (!bequiet) {
                printf("osdNTPGet cleaner error: %s\n", strerror(errno));
                bequiet = 1;
            }
            break;
        }
        else {
            bequiet = 0;
        }
    } while (ret > 0);

    return rtems_bsdnet_get_ntp(ntpSocket, NULL, ts);
}

void osdNTPInit

(

void

)

Definition at line 81 of file osdTime.cpp.

{
    struct sockaddr_in myAddr;

    ntpSocket = socket (AF_INET, SOCK_DGRAM, 0);
    if (ntpSocket < 0) {
        printf("osdNTPInit() Can't create socket: %s\n", strerror (errno));
        return;
    }
    memset (&myAddr, 0, sizeof myAddr);
    myAddr.sin_family = AF_INET;
    myAddr.sin_port = htons (0);
    myAddr.sin_addr.s_addr = htonl (INADDR_ANY);
    if (bind (ntpSocket, (struct sockaddr *)&myAddr, sizeof myAddr) < 0) {
        printf("osdNTPInit() Can't bind socket: %s\n", strerror (errno));
        close (ntpSocket);
        ntpSocket = -1;
    }
}

void osdNTPReport

(

void

)

Definition at line 101 of file osdTime.cpp.

{
}

int osdTickGet

(

void

)

Definition at line 105 of file osdTime.cpp.

{
    rtems_interval t;
    rtems_clock_get (RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &t);
    return t;
}

int osdTickRateGet

(

void

)

Definition at line 112 of file osdTime.cpp.

{
    return rtemsTicksPerSecond;
}

void osdTimeRegister

(

void

)

Definition at line 36 of file osdTime.cpp.

{
    /* Init NTP first so it can be used to sync ClockTime */
    NTPTime_Init(100);
    ClockTime_Init(CLOCKTIME_SYNC);

    osdMonotonicInit();
}