jehanne/qa/kern/psx.c

45 lines
1.0 KiB
C

/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
#include <u.h>
#include <lib9.h>
void
main(int argc, char *argv[])
{
int iter = 1000, i;
Waitmsg *w;
if (argc > 1)
iter = strtoul(argv[1], 0, 0);
for(i = 0; i < iter; i++) {
int pid;
pid = fork();
if (pid < 0) {
print("FAIL: fork()\n");
exits("FAIL");
}
if (pid == 0) {
char *args[] = {"ps", nil};
sys_exec("/arch/amd64/cmd/ps", (const char **)args);
fprint(2,"Exec fails: %r\n");
print("FAIL\n");
exits("FAIL");
}
w = wait();
if (w->msg[0] != 0) {
print("FAIL: %s\n", w->msg);
exits("FAIL");
}
}
// if we get here, we have survived. That's a miracle.
print("PASS\n");
exits("PASS");
}