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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/metrics/leak_detector/custom_allocator.h"
#include <stddef.h>
namespace metrics {
namespace leak_detector {
namespace {
// Wrappers around new and delete.
void* DefaultAlloc(size_t size) {
return new char[size];
}
void DefaultFree(void* ptr, size_t /* size */) {
delete[] reinterpret_cast<char*>(ptr);
}
CustomAllocator::AllocFunc g_alloc_func = nullptr;
CustomAllocator::FreeFunc g_free_func = nullptr;
} // namespace
// static
void CustomAllocator::Initialize() {
Initialize(&DefaultAlloc, &DefaultFree);
}
// static
void CustomAllocator::Initialize(AllocFunc alloc_func, FreeFunc free_func) {
g_alloc_func = alloc_func;
g_free_func = free_func;
}
// static
bool CustomAllocator::Shutdown() {
g_alloc_func = nullptr;
g_free_func = nullptr;
return true;
}
// static
bool CustomAllocator::IsInitialized() {
return g_alloc_func && g_free_func;
}
// static
void* CustomAllocator::Allocate(size_t size) {
return g_alloc_func(size);
}
// static
void CustomAllocator::Free(void* ptr, size_t size) {
g_free_func(ptr, size);
}
} // namespace leak_detector
} // namespace metrics
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