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// Copyright 2020 Google LLC
//
// Licensed 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
//
// https://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.
#ifndef PLATFORM_PUBLIC_PENDING_JOB_REGISTRY_H_
#define PLATFORM_PUBLIC_PENDING_JOB_REGISTRY_H_
#include "absl/base/thread_annotations.h"
#include "absl/time/time.h"
#include "internal/platform/mutex.h"
namespace location {
namespace nearby {
// A global registry of running tasks. The goal is to help us monitor
// tasks that are either waiting too long for their turn or they never finish
class PendingJobRegistry {
public:
static PendingJobRegistry& GetInstance();
~PendingJobRegistry();
void AddPendingJob(const std::string& name, absl::Time post_time);
void RemovePendingJob(const std::string& name, absl::Time post_time);
void AddRunningJob(const std::string& name, absl::Time post_time);
void RemoveRunningJob(const std::string& name, absl::Time post_time);
void ListJobs();
private:
PendingJobRegistry();
std::string CreateKey(const std::string& name, absl::Time post_time);
Mutex mutex_;
absl::flat_hash_map<const std::string, absl::Time> pending_jobs_
ABSL_GUARDED_BY(mutex_);
absl::flat_hash_map<const std::string, absl::Time> running_jobs_
ABSL_GUARDED_BY(mutex_);
absl::Time list_jobs_time_ ABSL_GUARDED_BY(mutex_) = absl::UnixEpoch();
};
} // namespace nearby
} // namespace location
#endif // PLATFORM_PUBLIC_PENDING_JOB_REGISTRY_H_
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