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#pragma once
#include "mutex.h"
#include <util/generic/ptr.h>
#include <util/generic/noncopyable.h>
#include <util/datetime/base.h>
#include <utility>
class TCondVar {
public:
TCondVar();
~TCondVar();
void BroadCast() noexcept;
void Signal() noexcept;
/*
* returns false if failed by timeout
*/
bool WaitD(TMutex& m, TInstant deadline) noexcept;
template <typename P>
inline bool WaitD(TMutex& m, TInstant deadline, P pred) noexcept {
while (!pred()) {
if (!WaitD(m, deadline)) {
return pred();
}
}
return true;
}
/*
* returns false if failed by timeout
*/
inline bool WaitT(TMutex& m, TDuration timeout) noexcept {
return WaitD(m, timeout.ToDeadLine());
}
template <typename P>
inline bool WaitT(TMutex& m, TDuration timeout, P pred) noexcept {
return WaitD(m, timeout.ToDeadLine(), std::move(pred));
}
/*
* infinite wait
*/
inline void WaitI(TMutex& m) noexcept {
WaitD(m, TInstant::Max());
}
template <typename P>
inline void WaitI(TMutex& m, P pred) noexcept {
WaitD(m, TInstant::Max(), std::move(pred));
}
// deprecated
inline void Wait(TMutex& m) noexcept {
WaitI(m);
}
template <typename P>
inline void Wait(TMutex& m, P pred) noexcept {
WaitI(m, std::move(pred));
}
private:
class TImpl;
THolder<TImpl> Impl_;
};
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