piler/src/tai.c
Janos SUTO 950211687f src: refactoring
Signed-off-by: Janos SUTO <sj@acts.hu>
2017-08-08 15:34:45 +02:00

71 lines
1.3 KiB
C

#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include "tai.h"
static char hex[16] = "0123456789abcdef";
void tai_pack(char *s, struct tai *t){
uint64 x = t->x;
s[7] = x & 255; x >>= 8;
s[6] = x & 255; x >>= 8;
s[5] = x & 255; x >>= 8;
s[4] = x & 255; x >>= 8;
s[3] = x & 255; x >>= 8;
s[2] = x & 255; x >>= 8;
s[1] = x & 255; x >>= 8;
s[0] = x;
}
void taia_pack(char *s, struct taia *t){
unsigned long x;
tai_pack(s, &t->sec);
s += 8;
x = t->atto;
s[7] = x & 255; x >>= 8;
s[6] = x & 255; x >>= 8;
s[5] = x & 255; x >>= 8;
s[4] = x;
x = t->nano;
s[3] = x & 255; x >>= 8;
s[2] = x & 255; x >>= 8;
s[1] = x & 255; x >>= 8;
s[0] = x;
}
void taia_now(struct taia *t){
struct timeval now;
gettimeofday(&now,(struct timezone *) 0);
t->sec.x = 4611686018427387914ULL + (uint64)now.tv_sec;
t->nano = 1000 * now.tv_usec + 500;
t->atto = 0;
}
void tai_timestamp(char *s){
struct tai now;
char nowpack[TAI_PACK];
int i;
now.x = 4611686018427387914ULL + (uint64)time((long *) 0);
tai_pack(nowpack, &now);
for (i = 0;i < 8;++i) {
*(s+i*2) = hex[(nowpack[i] >> 4) & 15];
*(s+i*2+1) = hex[nowpack[i] & 15];
}
*(s+2*TAI_PACK) = '\0';
}