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33 lines
640 B
C++
33 lines
640 B
C++
#include "platform/base/cancellation_flag.h"
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namespace location {
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namespace nearby {
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CancellationFlag::CancellationFlag() {
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mutex_ = std::make_unique<absl::Mutex>();
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}
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CancellationFlag::CancellationFlag(bool cancelled) {
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mutex_ = std::make_unique<absl::Mutex>();
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cancelled_ = cancelled;
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}
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void CancellationFlag::Cancel() {
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absl::MutexLock lock(mutex_.get());
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if (cancelled_) {
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// Someone already cancelled. Return immediately.
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return;
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}
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cancelled_ = true;
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}
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bool CancellationFlag::Cancelled() const {
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absl::MutexLock lock(mutex_.get());
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return cancelled_;
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}
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} // namespace nearby
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} // namespace location
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