void calc_sort_time(int *parray,int size,void (*sortfunc)(int *,int),char *funcname)
{
struct timeval start,stop,diff;
memset(&start,0,sizeof(struct timeval));
memset(&stop,0,sizeof(struct timeval));
memset(&diff,0,sizeof(struct timeval));
gettimeofday(&start,NULL);
sortfunc(parray,size);
gettimeofday(&stop,NULL);
time_substract(&diff,&start,&stop);
printf("%s:%d s,%d us\n",funcname,(int)diff.tv_sec,(int)diff.tv_usec);
}
double Etime(char** cmd)
{
Remove_first(cmd); // remove "etime" in cmd
int i;
char *ifIR=NULL, *ifOR=NULL;
for(i=0; cmd[i]!=NULL;i++)
{
ifOR = strchr(cmd[i], '>');
if( ifOR!=NULL ) break; // if cmd contains >
}
for(i=0; cmd[i]!=NULL;i++)
{
ifIR = strchr(cmd[i], '<');
if( ifIR!=NULL ) break;// if cmd contains <
}
struct timeval start, finish, diff;
gettimeofday(&start, 0);
if(cmd[0] != NULL)
{
if( ifOR!=NULL )
output_red(cmd);
else if( ifIR!=NULL )
input_red(cmd);
else if((strcmp(cmd[0], "echo") == 0)||(strcmp(cmd[0], "exit") == 0))
check_command(cmd);
else
my_execute(cmd);
}
gettimeofday(&finish, 0);
time_substract(&diff, &start, &finish);
double duration = (double)diff.tv_sec + ((double)diff.tv_usec/1000000.0);
printf("Elapsed Time: %.9fs\n",duration);
return duration;
}
int main(int argc, char **argv)
{
int i = 30;
struct timeval start,stop,diff;
memset(&start,0,sizeof(struct timeval));
memset(&stop,0,sizeof(struct timeval));
memset(&diff,0,sizeof(struct timeval));
while( i -- )
{
gettimeofday(&start,0);
//×ÄҪ×µÄÂ..
// printf("hello world\n");
usleep(50);
gettimeofday(&stop,0);
time_substract(&diff,&start,&stop);
printf("usleep(50), Total time : %d s,%d us\n",(int)diff.tv_sec,(int)diff.tv_usec);
}
i = 30;
while( i -- )
{
gettimeofday(&start,0);
//×ÄҪ×µÄÂ..
// printf("hello world\n");
usleep(5000);
gettimeofday(&stop,0);
time_substract(&diff,&start,&stop);
printf("usleep(5000), Total time : %d s,%d us\n",(int)diff.tv_sec,(int)diff.tv_usec);
}
i = 30;
while( i -- )
{
gettimeofday(&start,0);
//×ÄҪ×µÄÂ..
// printf("hello world\n");
nanosleep(50000);
gettimeofday(&stop,0);
time_substract(&diff,&start,&stop);
printf("nanosleep(50000), Total time : %d s,%d us\n",(int)diff.tv_sec,(int)diff.tv_usec);
}
}
