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Make mallocx() OOM test more robust.

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Make mallocx() OOM testing work correctly even on systems that can
allocate the majority of virtual address space in a single contiguous
region.
This commit is contained in:
Jason Evans 2015-09-24 16:44:16 -07:00
parent d260f442ce
commit 03eb37e8fd
1 changed files with 14 additions and 3 deletions
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17
test/integration/mallocx.c
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@ -52,9 +52,20 @@ TEST_BEGIN(test_oom)
hugemax = get_huge_size(get_nhuge()-1);
/* In practice hugemax is too large to be allocated. */
assert_ptr_null(mallocx(hugemax, 0),
"Expected OOM for mallocx(size=%#zx, 0)", hugemax);
/*
* It should be impossible to allocate two objects that each consume
* more than half the virtual address space.
*/
{
void *p;
p = mallocx(hugemax, 0);
if (p != NULL) {
assert_ptr_null(mallocx(hugemax, 0),
"Expected OOM for mallocx(size=%#zx, 0)", hugemax);
dallocx(p, 0);
}
}
#if LG_SIZEOF_PTR == 3
size = ZU(0x8000000000000000);