38 lines
687 B
C++
38 lines
687 B
C++
#ifndef MEMGRAPH_UTILS_SYNC_CASLOCK_HPP
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#define MEMGRAPH_UTILS_SYNC_CASLOCK_HPP
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#include <atomic>
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#include <unistd.h>
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class CasLock
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{
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public:
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void lock()
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{
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bool locked = false;
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while(!lock_flag.compare_exchange_weak(locked, true,
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std::memory_order_release,
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std::memory_order_relaxed))
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{
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usleep(250);
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}
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}
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void unlock()
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{
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lock_flag.store(0, std::memory_order_release);
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}
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bool locked()
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{
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return lock_flag.load(std::memory_order_relaxed);
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}
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private:
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std::atomic<bool> lock_flag;
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};
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#endif
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