gecko/xpcom/tests/TestJemalloc.cpp
2012-05-21 12:12:37 +01:00

79 lines
1.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* Ideally, this test would be in memory/test/. But I couldn't get it to build
* there (couldn't find TestHarness.h). I think memory/ is processed too early
* in the build. So it's here.
*/
#include "TestHarness.h"
#include "jemalloc.h"
static inline bool
TestOne(size_t size)
{
size_t req = size;
size_t adv = je_malloc_usable_size_in_advance(req);
char* p = (char*)malloc(req);
size_t usable = moz_malloc_usable_size(p);
if (adv != usable) {
fail("je_malloc_usable_size_in_advance(%d) --> %d; "
"malloc_usable_size(%d) --> %d",
req, adv, req, usable);
return false;
}
free(p);
return true;
}
static inline bool
TestThree(size_t size)
{
return TestOne(size - 1) && TestOne(size) && TestOne(size + 1);
}
static nsresult
TestJemallocUsableSizeInAdvance()
{
#define K * 1024
#define M * 1024 * 1024
/*
* Test every size up to a certain point, then (N-1, N, N+1) triplets for a
* various sizes beyond that.
*/
for (size_t n = 0; n < 16 K; n++)
if (!TestOne(n))
return NS_ERROR_UNEXPECTED;
for (size_t n = 16 K; n < 1 M; n += 4 K)
if (!TestThree(n))
return NS_ERROR_UNEXPECTED;
for (size_t n = 1 M; n < 8 M; n += 128 K)
if (!TestThree(n))
return NS_ERROR_UNEXPECTED;
passed("je_malloc_usable_size_in_advance");
return NS_OK;
}
int main(int argc, char** argv)
{
int rv = 0;
ScopedXPCOM xpcom("jemalloc");
if (xpcom.failed())
return 1;
if (NS_FAILED(TestJemallocUsableSizeInAdvance()))
rv = 1;
return rv;
}