40 lines
692 B
C
40 lines
692 B
C
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <time.h>
|
||
|
|
|
||
|
|
unsigned long
|
||
|
|
getTick ()
|
||
|
|
{
|
||
|
|
static unsigned long init = 0;
|
||
|
|
unsigned long t;
|
||
|
|
struct timespec ts;
|
||
|
|
|
||
|
|
clock_gettime(CLOCK_REALTIME, &ts);
|
||
|
|
t = ts.tv_nsec / 1000000;
|
||
|
|
t += ts.tv_sec * 1000;
|
||
|
|
if (init == 0)
|
||
|
|
init = t;
|
||
|
|
return t - init;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
if (argc > 1 && !strcmp(argv[1], "wait")) {
|
||
|
|
long int ms = 1000;
|
||
|
|
const char *f = NULL;
|
||
|
|
if (argc > 2)
|
||
|
|
ms = atol(argv[2]);
|
||
|
|
if (argc > 3)
|
||
|
|
nice(atoi(argv[3]));
|
||
|
|
if (argc > 4)
|
||
|
|
f = argv[4][0] ? argv[4] : NULL;
|
||
|
|
ms += getTick();
|
||
|
|
while (ms > getTick())
|
||
|
|
if (f && !access(f, R_OK))
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|