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// Copyright 2017 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/task_scheduler_util/renderer/initialization.h"
#include <map>
#include <string>
#include "base/command_line.h"
#include "base/logging.h"
#include "base/task_scheduler/task_traits.h"
#include "base/threading/platform_thread.h"
#include "components/task_scheduler_util/common/variations_util.h"
namespace task_scheduler_util {
namespace {
enum WorkerPoolType : size_t {
BACKGROUND = 0,
BACKGROUND_BLOCKING,
FOREGROUND,
FOREGROUND_BLOCKING,
WORKER_POOL_COUNT // Always last.
};
} // namespace
std::vector<base::SchedulerWorkerPoolParams> GetRendererWorkerPoolParams() {
using ThreadPriority = base::ThreadPriority;
std::vector<SchedulerImmutableWorkerPoolParams> immutable_worker_pool_params;
DCHECK_EQ(BACKGROUND, immutable_worker_pool_params.size());
immutable_worker_pool_params.emplace_back("RendererBackground",
ThreadPriority::BACKGROUND);
DCHECK_EQ(BACKGROUND_BLOCKING, immutable_worker_pool_params.size());
immutable_worker_pool_params.emplace_back("RendererBackgroundBlocking",
ThreadPriority::BACKGROUND);
DCHECK_EQ(FOREGROUND, immutable_worker_pool_params.size());
immutable_worker_pool_params.emplace_back("RendererForeground",
ThreadPriority::NORMAL);
DCHECK_EQ(FOREGROUND_BLOCKING, immutable_worker_pool_params.size());
immutable_worker_pool_params.emplace_back("RendererForegroundBlocking",
ThreadPriority::NORMAL);
return GetWorkerPoolParams(immutable_worker_pool_params,
GetVariationParamsFromCommandLine(
*base::CommandLine::ForCurrentProcess()));
}
size_t RendererWorkerPoolIndexForTraits(const base::TaskTraits& traits) {
const bool is_background =
traits.priority() == base::TaskPriority::BACKGROUND;
if (traits.may_block() || traits.with_base_sync_primitives())
return is_background ? BACKGROUND_BLOCKING : FOREGROUND_BLOCKING;
return is_background ? BACKGROUND : FOREGROUND;
}
} // namespace task_scheduler_util
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