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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/network/shared_dictionary_util.h"
#include "base/files/file_path.h"
#include "base/functional/bind.h"
#include "base/system/sys_info.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "content/public/browser/storage_partition.h"
#include "services/network/public/mojom/network_context.mojom.h"
namespace content {
namespace {
const uint64_t kDefaultCacheMaxSizeForInMemory = 20 * 1024 * 1024; // 20 MiB;
const uint64_t kMaxCacheMaxSizeForInMemory = 400 * 1024 * 1024; // 400 MiB;
const uint64_t kDefaultCacheMaxSizeForOnDisk = 300 * 1024 * 1024; // 300 MiB;
const uint64_t kMaxCacheMaxSizeForOnDisk = 400 * 1024 * 1024; // 400 MiB;
uint64_t CaliculateCacheMaxSizeForInMemory() {
uint64_t cache_max_size = kDefaultCacheMaxSizeForInMemory;
const uint64_t total_memory = base::SysInfo::AmountOfPhysicalMemory();
if (total_memory == 0) {
return cache_max_size;
}
// We want to use up to 1% of the computer's memory, with a limit of 400 MB,
// reached on system with more than 40 GB of RAM.
cache_max_size = total_memory / 100;
if (cache_max_size > kMaxCacheMaxSizeForInMemory) {
cache_max_size = kMaxCacheMaxSizeForInMemory;
}
return cache_max_size;
}
uint64_t CaliculateCacheMaxSizeForOnDisk(const base::FilePath& path) {
uint64_t cache_max_size = kDefaultCacheMaxSizeForOnDisk;
const int64_t available_disk_space =
base::SysInfo::AmountOfFreeDiskSpace(path);
if (available_disk_space <= 0) {
return cache_max_size;
}
// We want to use up to 1% of the available disk space, with a limit of 400
// MB, reached on system with more than 40 GB of available disk space.
cache_max_size = available_disk_space / 100;
if (cache_max_size > kMaxCacheMaxSizeForOnDisk) {
cache_max_size = kMaxCacheMaxSizeForOnDisk;
}
return cache_max_size;
}
} // namespace
void CalculateAndSetSharedDictionaryCacheMaxSize(
base::WeakPtr<StoragePartition> storage_partition,
const base::FilePath& path) {
base::ThreadPool::CreateSequencedTaskRunner(
{base::MayBlock(), base::TaskPriority::BEST_EFFORT})
->PostTaskAndReplyWithResult(
FROM_HERE,
path.empty() ? base::BindOnce(&CaliculateCacheMaxSizeForInMemory)
: base::BindOnce(&CaliculateCacheMaxSizeForOnDisk, path),
base::BindOnce(
[](base::WeakPtr<StoragePartition> storage_partition,
uint64_t cache_max_size) {
if (!storage_partition) {
return;
}
storage_partition->GetNetworkContext()
->SetSharedDictionaryCacheMaxSize(cache_max_size);
},
storage_partition));
}
} // namespace content
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