mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 07:06:11 -04:00
Alexey Polyudov
2155b3ddeb
Signed-off-by: Alexey Polyudov <apolyudov@google.com> Change-Id: I9850950db8bd84f0904ea1a413151887f52098cf
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
#ifndef PLATFORM_API_CONDITION_VARIABLE_H_
|
|
#define PLATFORM_API_CONDITION_VARIABLE_H_
|
|
|
|
#include "platform/base/exception.h"
|
|
#include "absl/time/clock.h"
|
|
|
|
namespace location {
|
|
namespace nearby {
|
|
namespace api {
|
|
|
|
// The ConditionVariable class is a synchronization primitive that can be used
|
|
// to block a thread, or multiple threads at the same time, until another thread
|
|
// both modifies a shared variable (the condition), and notifies the
|
|
// ConditionVariable.
|
|
class ConditionVariable {
|
|
public:
|
|
virtual ~ConditionVariable() {}
|
|
|
|
// Notifies all the waiters that condition state has changed.
|
|
virtual void Notify() = 0;
|
|
|
|
// Waits indefinitely for Notify to be called.
|
|
// May return prematurely in case of interrupt, if supported by platform.
|
|
// Returns kSuccess, or kInterrupted on interrupt.
|
|
virtual Exception Wait() = 0;
|
|
|
|
// Waits while timeout has not expired for Notify to be called.
|
|
// May return prematurely in case of interrupt, if supported by platform.
|
|
// Returns kSuccess, or kInterrupted on interrupt.
|
|
virtual Exception Wait(absl::Duration timeout) = 0;
|
|
};
|
|
|
|
} // namespace api
|
|
} // namespace nearby
|
|
} // namespace location
|
|
|
|
#endif // PLATFORM_API_CONDITION_VARIABLE_H_
|