1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <stdint.h>
4 #include <sys/time.h>
5 #include <unistd.h>
6
clock_ms(void)7 uint32_t clock_ms(void)
8 {
9 struct timeval tv;
10 gettimeofday(&tv,NULL);
11 return (tv.tv_sec * 1000 + tv.tv_usec / 1000);
12 }
13
clock_us(void)14 uint64_t clock_us(void)
15 {
16 struct timeval tv;
17 gettimeofday(&tv,NULL);
18 return (tv.tv_sec * 1000000 + tv.tv_usec);
19 }
20
timestamp(char * fmt,int index,int start)21 void timestamp(char *fmt, int index, int start)
22 {
23 static long int st[128];
24 struct timeval t;
25
26 if (start)
27 {
28 printf("[%d %s]", index, fmt);
29 gettimeofday(&t,NULL);
30 st[index] = t.tv_sec * 1000000 + t.tv_usec;
31 }
32 else
33 {
34 gettimeofday(&t,NULL);
35 printf("[%d # cost %ld us]\n", index, (t.tv_sec * 1000000 + t.tv_usec) - st[index]);
36 }
37 }
38
39