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/* Check that TRT happens when we reach the #threads implementation limit.
#progos: linux
*/
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#include <unistd.h>
#include <sched.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
int
process (void *arg)
{
int i;
for (i = 0; i < 500; i++)
if (sched_yield ())
abort ();
return 0;
}
int
main (void)
{
int pid;
int i;
int stacksize = 16384;
for (i = 0; i < 1000; i++)
{
char *stack = malloc (stacksize);
if (stack == NULL)
abort ();
pid = clone (process, (char *) stack + stacksize - 64,
(CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND)
| SIGCHLD, "ab");
if (pid <= 0)
{
/* FIXME: Read sysconf instead of magic number. */
if (i < 60)
{
fprintf (stderr, "Bad clone %d\n", pid);
abort ();
}
if (errno == EAGAIN)
{
printf ("pass\n");
exit (0);
}
}
}
abort ();
}
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