Attachment 295519 Details for Bug 433403 – print the ntpd shared memory

print the ntpd shared memory

ntpshm.c (text/plain), 1.02 KB, created by Miroslav Lichvar on 2008-02-21 15:21:40 UTC

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Creator: Miroslav Lichvar

Created: 2008-02-21 15:21:40 UTC

Size: 1.02 KB

patch

obsolete

>#include <sys/types.h>
>#include <sys/shm.h>
>#include <stdio.h>
>#include <unistd.h>
>
>struct shmTime {
>	int    mode; /* 0 - if valid set
>		      *       use values, 
>		      *       clear valid
>		      * 1 - if valid set 
>		      *       if count before and after read of values is equal,
>		      *         use values 
>		      *       clear valid
>		      */
>	int    count;
>	time_t clockTimeStampSec;
>	int    clockTimeStampUSec;
>	time_t receiveTimeStampSec;
>	int    receiveTimeStampUSec;
>	int    leap;
>	int    precision;
>	int    nsamples;
>	int    valid;
>	int    dummy[10]; 
>};
>
>int main() {
>	int shmid = 0, lastvalid = 0, lastcount = 0;
>	struct shmTime *p;
>
>	shmid=shmget (0x4e545030, sizeof (struct shmTime), 0);
>	if (shmid==-1 || ((long)(p = (struct shmTime *)shmat (shmid, 0, 0))) == -1)
>		return 1;
>
>	while (1) {
>		if (lastcount != p->count || lastvalid != p->valid)
>			printf("count: %d, valid: %d, ts: %ld\n", p->count, p->valid, p->receiveTimeStampSec);
>		lastcount = p->count;
>		lastvalid = p->valid;
>		usleep(10000);
>	}
>
>	return 0;
>}

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Attachments on bug 433403: 295519 | 295786 | 296034