osdTime.cpp File Reference

#include <sys/types.h>
#include <sys/socket.h>
#include <epicsStdio.h>
#include <rtems.h>
#include <errno.h>
#include <unistd.h>
#include <netinet/in.h>
#include <rtems/rtems_bsdnet_internal.h>
#include "epicsTime.h"
#include "osdTime.h"
#include "osiNTPTime.h"
#include "osiClockTime.h"
#include "generalTimeSup.h"

Include dependency graph for osdTime.cpp:

Go to the source code of this file.

Macros
#define	__BSD_VISIBLE   1
#define	EPICS_EXPOSE_LIBCOM_MONOTONIC_PRIVATE

Functions
int	rtems_bsdnet_get_ntp (int, int(*)(), struct timespec *)
void	osdTimeRegister (void)
int	osdNTPGet (struct timespec *ts)
void	osdNTPInit (void)
void	osdNTPReport (void)
int	osdTickGet (void)
int	osdTickRateGet (void)
int	epicsTime_gmtime (const time_t *pAnsiTime, struct tm *pTM)
	Break down a time_t into a struct tm in the UTC timezone. More...
int	epicsTime_localtime (const time_t *clock, struct tm *result)
	Break down a time_t into a struct tm in the local timezone. More...

Variables
rtems_interval	rtemsTicksPerSecond
double	rtemsTicksPerSecond_double
double	rtemsTicksPerTwoSeconds_double

Macro Definition Documentation

#define __BSD_VISIBLE   1

Definition at line 11 of file osdTime.cpp.

#define EPICS_EXPOSE_LIBCOM_MONOTONIC_PRIVATE

Definition at line 15 of file osdTime.cpp.

Function Documentation

int epicsTime_gmtime	(	const time_t *	pAnsiTime,
		struct tm *	pTM
	)

Break down a time_t into a struct tm in the UTC timezone.

Definition at line 120 of file osdTime.cpp.

{
    struct tm * pRet = gmtime_r ( pAnsiTime, pTM );
    if ( pRet ) {
        return epicsTimeOK;
    }
    else {
        return errno;
    }
}

int epicsTime_localtime	(	const time_t *	clock,
		struct tm *	result
	)

Break down a time_t into a struct tm in the local timezone.

Definition at line 131 of file osdTime.cpp.

{
    struct tm * pRet = localtime_r ( clock, result );
    if ( pRet ) {
        return epicsTimeOK;
    }
    else {
        return errno;
    }
}

int osdNTPGet

(

struct timespec *

ts

)

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();
}

int rtems_bsdnet_get_ntp	(	int	,
		int(*)()	,
		struct timespec *
	)

Variable Documentation

rtems_interval rtemsTicksPerSecond

Definition at line 142 of file osdTime.cpp.

double rtemsTicksPerSecond_double

Definition at line 143 of file osdTime.cpp.

double rtemsTicksPerTwoSeconds_double

Definition at line 143 of file osdTime.cpp.