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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).
#pragma once
#include "rocksdb/env.h"
namespace ROCKSDB_NAMESPACE {
class MockTimeEnv : public EnvWrapper {
public:
explicit MockTimeEnv(Env* base) : EnvWrapper(base) {}
virtual Status GetCurrentTime(int64_t* time) override {
assert(time != nullptr);
assert(current_time_ <=
static_cast<uint64_t>(std::numeric_limits<int64_t>::max()));
*time = static_cast<int64_t>(current_time_);
return Status::OK();
}
virtual uint64_t NowMicros() override {
assert(current_time_ <= std::numeric_limits<uint64_t>::max() / 1000000);
return current_time_ * 1000000;
}
virtual uint64_t NowNanos() override {
assert(current_time_ <= std::numeric_limits<uint64_t>::max() / 1000000000);
return current_time_ * 1000000000;
}
uint64_t RealNowMicros() { return target()->NowMicros(); }
void set_current_time(uint64_t time) {
assert(time >= current_time_);
current_time_ = time;
}
private:
std::atomic<uint64_t> current_time_{0};
};
} // namespace ROCKSDB_NAMESPACE
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