45 lines
943 B
C++
45 lines
943 B
C++
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#ifndef MEMGRAPH_TRANSACTION_COMMIT_LOG_HPP
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#define MEMGRAPH_TRANSACTION_COMMIT_LOG_HPP
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#include <cstdint>
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#include <boost/dynamic_bitset/dynamic_bitset.hpp>
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#include "sync/spinlock.hpp"
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#include "sync/lockable.hpp"
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// optimize allocation performance by preallocating chunks in like 2MB or so
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// optimize memory by purging old transactions after vacuuming or something
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// this is not sustainable in the long run
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class CommitLog : Lockable<SpinLock>
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{
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void begin()
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{
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auto guard = this->acquire();
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log.push_back(0);
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}
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void mark_aborted(uint64_t)
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{
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// this would be useful in a different implementation
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}
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void mark_committed(uint64_t id)
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{
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auto guard = this->acquire();
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log.set(id, true);
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}
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bool is_committed(uint64_t id)
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{
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auto guard = this->acquire();
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return log[id];
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}
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private:
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boost::dynamic_bitset<uint64_t> log;
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};
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#endif
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