/* This is just a quick test program to see how long a wait is * produced by a select loop with an exponential backoff. * * gcc -g -O2 -o test_select test_select.c * test_select * * Roy Fielding, 1996 */ #include #include #include int main (void) { int srv; long waittime = 4096; struct timeval tv; printf("Start\n"); while ((waittime > 0) && (waittime < 3000000)) { printf("%d\n", waittime); tv.tv_sec = waittime/1000000; tv.tv_usec = waittime%1000000; waittime <<= 1; srv = select(0, NULL, NULL, NULL, &tv); } printf("End\n"); exit(0); }