src/common/memfill.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include <errno.h>
   4 #include <sys/resource.h>
   5 #include "test.h"
   6
   7 int t_memfill()
   8 {
   9         int r = 0;
  10         /* alloc mmap space with PROT_NONE */
  11         if (t_vmfill(0,0,0) < 0) {
  12                 t_error("vmfill failed: %s\n", strerror(errno));
  13                 r = -1;
  14         }
  15         /* limit brk space */
  16         if (t_setrlim(RLIMIT_DATA, 0) < 0)
  17                 r = -1;
  18         if (!r)
  19                 /* use up libc reserves if any */
  20                 while (malloc(1));
  21         return r;
  22 }