guardedalloc_alignment_test.cc

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/* SPDX-FileCopyrightText: 2014-2022 Blender Authors
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#include "testing/testing.h"
 
#include "BLI_utildefines.h"
 
#include "MEM_guardedalloc.h"
#include "guardedalloc_test_base.h"
 
#define CHECK_ALIGNMENT(ptr, align) EXPECT_EQ(size_t(ptr) % align, 0)
 
namespace {
 
void DoBasicAlignmentChecks(const int alignment)
{
  int *foo, *bar;
 
  foo = (int *)MEM_mallocN_aligned(sizeof(int) * 10, alignment, "test");
  CHECK_ALIGNMENT(foo, alignment);
 
  bar = (int *)MEM_dupallocN(foo);
  CHECK_ALIGNMENT(bar, alignment);
  MEM_freeN(bar);
 
  foo = (int *)MEM_reallocN(foo, sizeof(int) * 5);
  CHECK_ALIGNMENT(foo, alignment);
 
  foo = (int *)MEM_recallocN(foo, sizeof(int) * 5);
  CHECK_ALIGNMENT(foo, alignment);
 
  MEM_freeN(foo);
}
 
}  // namespace
 
TEST_F(LockFreeAllocatorTest, MEM_mallocN_aligned)
{
  DoBasicAlignmentChecks(1);
  DoBasicAlignmentChecks(2);
  DoBasicAlignmentChecks(4);
  DoBasicAlignmentChecks(8);
  DoBasicAlignmentChecks(16);
  DoBasicAlignmentChecks(32);
  DoBasicAlignmentChecks(256);
  DoBasicAlignmentChecks(512);
}
 
TEST_F(GuardedAllocatorTest, MEM_mallocN_aligned)
{
  DoBasicAlignmentChecks(1);
  DoBasicAlignmentChecks(2);
  DoBasicAlignmentChecks(4);
  DoBasicAlignmentChecks(8);
  DoBasicAlignmentChecks(16);
  DoBasicAlignmentChecks(32);
  DoBasicAlignmentChecks(256);
  DoBasicAlignmentChecks(512);
}