chromium/base/metrics/persistent_histogram_storage.cc

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/metrics/persistent_histogram_storage.h"

#include <cinttypes>
#include <string_view>

#include "base/files/file_util.h"
#include "base/files/important_file_writer.h"
#include "base/logging.h"
#include "base/metrics/persistent_histogram_allocator.h"
#include "base/metrics/persistent_memory_allocator.h"
#include "base/process/memory.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/time/time.h"
#include "build/build_config.h"

#if BUILDFLAG(IS_WIN)
#include <windows.h>
// Must be after <windows.h>
#include <memoryapi.h>
#elif BUILDFLAG(IS_POSIX) || BUILDFLAG(IS_FUCHSIA)
#include <sys/mman.h>
#endif

namespace {

constexpr size_t kAllocSize = …;  // 1 MiB

void* AllocateLocalMemory(size_t size) { … }

}  // namespace

namespace base {

PersistentHistogramStorage::PersistentHistogramStorage(
    std::string_view allocator_name,
    StorageDirManagement storage_dir_management)
    : … { … }

PersistentHistogramStorage::~PersistentHistogramStorage() { … }

}  // namespace base