static
void
makeprocs(void)
{
int i, status, failcount;
pid_t pids[NJOBS];
printf("Job size approximately %lu bytes\n", (unsigned long) JOBSIZE);
printf("Forking %d jobs; total load %luk\n", NJOBS,
(unsigned long) (NJOBS * JOBSIZE)/1024);
for (i=0; i<NJOBS; i++) {
pids[i] = fork();
if (pids[i]<0) {
warn("fork");
}
if (pids[i]==0) {
/* child */
go(i);
}
}
failcount=0;
for (i=0; i<NJOBS; i++) {
if (pids[i]<0) {
failcount++;
}
else {
if (waitpid(pids[i], &status, 0)<0) {
err(1, "waitpid");
}
if (status_is_failure(status)) {
failcount++;
}
}
}
if (failcount>0) {
printf("%d subprocesses failed\n", failcount);
exit(1);
}
printf("Test complete\n");
}
static
void
makeprocs(bool dowait)
{
int i, status, failcount;
struct usem s1, s2;
pid_t pids[NJOBS];
if (dowait) {
semcreate("1", &s1);
semcreate("2", &s2);
}
tprintf("Job size approximately %lu bytes\n", (unsigned long) JOBSIZE);
tprintf("Forking %d jobs; total load %luk\n", NJOBS,
(unsigned long) (NJOBS * JOBSIZE)/1024);
for (i=0; i<NJOBS; i++) {
pids[i] = fork();
if (pids[i]<0) {
warn("fork");
}
if (pids[i]==0) {
/* child */
if (dowait) {
//tsay("Process %d forked\n", i);
semopen(&s1);
semopen(&s2);
semV(&s1, 1);
semP(&s2, 1);
semclose(&s1);
semclose(&s2);
}
go(i);
}
}
if (dowait) {
semopen(&s1);
semopen(&s2);
//tsay("Waiting for fork...\n");
semP(&s1, NJOBS);
//tsay("Starting computation.\n");
semV(&s2, NJOBS);
}
failcount=0;
for (i=0; i<NJOBS; i++) {
if (pids[i]<0) {
failcount++;
}
else {
if (waitpid(pids[i], &status, 0)<0) {
err(1, "waitpid");
}
if (status_is_failure(status)) {
failcount++;
}
}
}
if (failcount>0) {
printf("%d subprocesses failed\n", failcount);
exit(1);
}
nprintf("\n");
tprintf("Test complete\n");
success(TEST161_SUCCESS, SECRET, "/testbin/parallelvm");
semclose(&s1);
semclose(&s2);
semdestroy(&s1);
semdestroy(&s2);
}
