// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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.

#pragma once

#include "common/factory_creator.h"

#include "runtime/runtime_profile.h"

namespace doris {

class ResourceContext;

class CPUContext : public std::enable_shared_from_this<CPUContext> {

    ENABLE_FACTORY_CREATOR(CPUContext);

public:

    /*

    * 1. operate them thread-safe.

    * 2. all tasks are unified.

    * 3. should not be operated frequently, use local variables to update Counter.

    */

    struct Stats {

        RuntimeProfile::Counter* cpu_cost_ms_counter_;

        RuntimeProfile* profile() { return profile_.get(); }

        void init_profile() {

            profile_ = std::make_unique<RuntimeProfile>("MemoryContext");

            cpu_cost_ms_counter_ = ADD_COUNTER(profile_, "RevokeWaitTimeMs", TUnit::TIME_MS);

        }

        std::string debug_string() { return profile_->pretty_print(); }

    private:

        std::unique_ptr<RuntimeProfile> profile_;

    };

    CPUContext() { stats_.init_profile(); }

    virtual ~CPUContext() = default;

    RuntimeProfile* stats_profile() { return stats_.profile(); }

    int64_t cpu_cost_ms() const { return stats_.cpu_cost_ms_counter_->value(); }

    void update_cpu_cost_ms(int64_t delta) const;

    // Bind current thread to cgroup, only some load thread should do this.

    void bind_workload_group() {

        // TODO: Call workload group method to bind current thread to cgroup

    }

protected:

    friend class ResourceContext;

    void set_resource_ctx(ResourceContext* resource_ctx) { resource_ctx_ = resource_ctx; }

    Stats stats_;

    ResourceContext* resource_ctx_ {nullptr};

};

} // namespace doris