| // Copyright 2021 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "partition_alloc/partition_root.h" |
| |
| #include <cstring> |
| |
| #include "partition_alloc/partition_alloc_base/component_export.h" |
| #include "partition_alloc/partition_alloc_base/no_destructor.h" |
| |
| namespace partition_alloc::internal { |
| |
| namespace { |
| constexpr PartitionOptions kConfig{}; |
| } // namespace |
| |
| PA_COMPONENT_EXPORT(PARTITION_ALLOC) |
| PartitionRoot& PCScanMetadataAllocator() { |
| static internal::base::NoDestructor<PartitionRoot> allocator(kConfig); |
| return *allocator; |
| } |
| |
| // TODO(tasak): investigate whether PartitionAlloc tests really need this |
| // function or not. If we found no tests need, remove it. |
| void ReinitPCScanMetadataAllocatorForTesting() { |
| // First, purge memory owned by PCScanMetadataAllocator. |
| PCScanMetadataAllocator().PurgeMemory(PurgeFlags::kDecommitEmptySlotSpans | |
| PurgeFlags::kDiscardUnusedSystemPages); |
| // Then, reinit the allocator. |
| PCScanMetadataAllocator().ResetForTesting(true); // IN-TEST |
| PCScanMetadataAllocator().Init(kConfig); |
| } |
| |
| } // namespace partition_alloc::internal |
