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25 lines
667 B
C++
25 lines
667 B
C++
#pragma once
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#include <Core/Types.h>
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#include <optional>
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#include <memory>
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#include <Common/ZooKeeper/ZooKeeperLock.h>
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#include <Common/ZooKeeper/ZooKeeper.h>
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namespace DB
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{
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/// Very simple wrapper for zookeeper ephemeral lock. It's better to have it
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/// because due to bad abstraction we use it in MergeTreeData.
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struct ZeroCopyLock
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{
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static inline const auto ZERO_COPY_LOCK_NAME = "part_exclusive_lock";
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ZeroCopyLock(const zkutil::ZooKeeperPtr & zookeeper, const std::string & lock_path, const std::string & lock_message);
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bool isLocked() const { return lock->isLocked(); }
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/// Actual lock
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std::unique_ptr<zkutil::ZooKeeperLock> lock;
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};
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}
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