// 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.

#include "runtime/memory/cache_manager.h"

#include "runtime/memory/cache_policy.h"

#include "runtime/runtime_profile.h"

namespace doris {

#include "common/compile_check_begin.h"

int64_t CacheManager::for_each_cache_prune_stale_wrap(

        std::function<void(CachePolicy* cache_policy)> func, RuntimeProfile* profile) {

    int64_t freed_size = 0;

    std::lock_guard<std::mutex> l(_caches_lock);

    for (const auto& pair : _caches) {

        auto* cache_policy = pair.second;

        if (!cache_policy->enable_prune()) {

            continue;

        }

        func(cache_policy);

        freed_size += cache_policy->profile()->get_counter("FreedMemory")->value();

        if (cache_policy->profile()->get_counter("FreedMemory")->value() != 0 && profile) {

            profile->add_child(cache_policy->profile(), true, nullptr);

        }

    }

    return freed_size;

}

int64_t CacheManager::for_each_cache_prune_stale(RuntimeProfile* profile) {

    if (need_prune(&_last_prune_stale_timestamp, "stale")) {

        return for_each_cache_prune_stale_wrap(

                [](CachePolicy* cache_policy) { cache_policy->prune_stale(); }, profile);

    }

    return 0;

}

int64_t CacheManager::for_each_cache_prune_all(RuntimeProfile* profile, bool force) {

    if (force || need_prune(&_last_prune_all_timestamp, "all")) {

        return for_each_cache_prune_stale_wrap(

                [force](CachePolicy* cache_policy) { cache_policy->prune_all(force); }, profile);

    }

    return 0;

}

int64_t CacheManager::cache_prune_all(CachePolicy::CacheType type, bool force) {

    std::lock_guard<std::mutex> l(_caches_lock);

    auto* cache_policy = _caches[type];

    cache_policy->prune_all(force);

    return cache_policy->profile()->get_counter("FreedMemory")->value();

}

int64_t CacheManager::for_each_cache_refresh_capacity(double adjust_weighted,

                                                      RuntimeProfile* profile) {

    int64_t freed_size = 0;

    std::lock_guard<std::mutex> l(_caches_lock);

    for (const auto& pair : _caches) {

        auto* cache_policy = pair.second;

        if (!cache_policy->enable_prune()) {

            continue;

        }

        cache_policy->adjust_capacity_weighted(adjust_weighted);

        freed_size += cache_policy->profile()->get_counter("FreedMemory")->value();

        if (cache_policy->profile()->get_counter("FreedMemory")->value() != 0 && profile) {

            profile->add_child(cache_policy->profile(), true, nullptr);

        }

    }

    return freed_size;

}

void CacheManager::for_each_cache_reset_initial_capacity(double adjust_weighted) {

    std::lock_guard<std::mutex> l(_caches_lock);

    for (const auto& pair : _caches) {

        pair.second->reset_initial_capacity(adjust_weighted);

    }

}

#include "common/compile_check_end.h"

} // namespace doris