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