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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/ttl_collection_cache.h"
#include <algorithm>
#include "mongo/db/service_context.h"
#include "mongo/logv2/log.h"
#include "mongo/util/fail_point.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kStorage
namespace mongo {
MONGO_FAIL_POINT_DEFINE(hangTTLCollectionCacheAfterRegisteringInfo);
namespace {
const auto getTTLCollectionCache = ServiceContext::declareDecoration<TTLCollectionCache>();
}
TTLCollectionCache& TTLCollectionCache::get(ServiceContext* ctx) {
return getTTLCollectionCache(ctx);
}
void TTLCollectionCache::registerTTLInfo(UUID uuid, const Info& info) {
{
stdx::lock_guard<Latch> lock(_ttlInfosLock);
_ttlInfos[uuid].push_back(info);
}
if (MONGO_unlikely(hangTTLCollectionCacheAfterRegisteringInfo.shouldFail())) {
LOGV2(4664000, "Hanging due to hangTTLCollectionCacheAfterRegisteringInfo fail point");
hangTTLCollectionCacheAfterRegisteringInfo.pauseWhileSet();
}
}
void TTLCollectionCache::deregisterTTLInfo(UUID uuid, const Info& info) {
stdx::lock_guard<Latch> lock(_ttlInfosLock);
auto infoIt = _ttlInfos.find(uuid);
fassert(5400705, infoIt != _ttlInfos.end());
auto& [_, infoVec] = *infoIt;
auto iter = std::find(infoVec.begin(), infoVec.end(), info);
fassert(40220, iter != infoVec.end());
infoVec.erase(iter);
if (infoVec.empty()) {
_ttlInfos.erase(infoIt);
}
}
TTLCollectionCache::InfoMap TTLCollectionCache::getTTLInfos() {
stdx::lock_guard<Latch> lock(_ttlInfosLock);
return _ttlInfos;
}
}; // namespace mongo
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