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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include "test_util/sync_point.h"
#include <assert.h>
#include <atomic>
#include <condition_variable>
#include <functional>
#include <mutex>
#include <string>
#include <thread>
#include <unordered_map>
#include <unordered_set>
#include "port/port.h"
#include "util/random.h"
#pragma once
#ifndef NDEBUG
namespace ROCKSDB_NAMESPACE {
struct SyncPoint::Data {
Data() : enabled_(false) {}
// Enable proper deletion by subclasses
virtual ~Data() {}
// successor/predecessor map loaded from LoadDependency
std::unordered_map<std::string, std::vector<std::string>> successors_;
std::unordered_map<std::string, std::vector<std::string>> predecessors_;
std::unordered_map<std::string, std::function<void(void*)> > callbacks_;
std::unordered_map<std::string, std::vector<std::string> > markers_;
std::unordered_map<std::string, std::thread::id> marked_thread_id_;
std::mutex mutex_;
std::condition_variable cv_;
// sync points that have been passed through
std::unordered_set<std::string> cleared_points_;
std::atomic<bool> enabled_;
int num_callbacks_running_ = 0;
void LoadDependency(const std::vector<SyncPointPair>& dependencies);
void LoadDependencyAndMarkers(const std::vector<SyncPointPair>& dependencies,
const std::vector<SyncPointPair>& markers);
bool PredecessorsAllCleared(const std::string& point);
void SetCallBack(const std::string& point,
const std::function<void(void*)>& callback) {
std::lock_guard<std::mutex> lock(mutex_);
callbacks_[point] = callback;
}
void ClearCallBack(const std::string& point);
void ClearAllCallBacks();
void EnableProcessing() {
enabled_ = true;
}
void DisableProcessing() {
enabled_ = false;
}
void ClearTrace() {
std::lock_guard<std::mutex> lock(mutex_);
cleared_points_.clear();
}
bool DisabledByMarker(const std::string& point,
std::thread::id thread_id) {
auto marked_point_iter = marked_thread_id_.find(point);
return marked_point_iter != marked_thread_id_.end() &&
thread_id != marked_point_iter->second;
}
void Process(const std::string& point, void* cb_arg);
};
} // namespace ROCKSDB_NAMESPACE
#endif // NDEBUG
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