chromium/third_party/perfetto/src/trace_processor/util/bump_allocator.cc

/*
 * Copyright (C) 2023 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "src/trace_processor/util/bump_allocator.h"

#include <limits>
#include <optional>

#include "perfetto/base/compiler.h"
#include "perfetto/base/logging.h"
#include "perfetto/ext/base/utils.h"

namespace perfetto {
namespace trace_processor {
namespace {

// TODO(b/266983484): consider using base::PagedMemory unless a) we are on a
// platform where that doesn't make sense (WASM) b) we are trying to do heap
// profiling.
base::AlignedUniquePtr<uint8_t[]> Allocate(uint32_t size) { … }

}  // namespace

BumpAllocator::BumpAllocator() = default;

BumpAllocator::~BumpAllocator() { … }

BumpAllocator::AllocId BumpAllocator::Alloc(uint32_t size) { … }

void BumpAllocator::Free(AllocId id) { … }

void* BumpAllocator::GetPointer(AllocId id) { … }

uint64_t BumpAllocator::EraseFrontFreeChunks() { … }

BumpAllocator::AllocId BumpAllocator::PastTheEndId() { … }

std::optional<BumpAllocator::AllocId> BumpAllocator::TryAllocInLastChunk(
    uint32_t size) { … }

}  // namespace trace_processor
}  // namespace perfetto