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#pragma once
#include <util/system/condvar.h>
#include <util/system/mutex.h>
class TTestSync {
private:
unsigned Current;
TMutex Mutex;
TCondVar CondVar;
public:
TTestSync()
: Current(0)
{
}
void Inc() {
TGuard<TMutex> guard(Mutex);
DoInc();
CondVar.BroadCast();
}
unsigned Get() {
TGuard<TMutex> guard(Mutex);
return Current;
}
void WaitFor(unsigned n) {
TGuard<TMutex> guard(Mutex);
Y_VERIFY(Current <= n, "too late, waiting for %d, already %d", n, Current);
while (n > Current) {
CondVar.WaitI(Mutex);
}
}
void WaitForAndIncrement(unsigned n) {
TGuard<TMutex> guard(Mutex);
Y_VERIFY(Current <= n, "too late, waiting for %d, already %d", n, Current);
while (n > Current) {
CondVar.WaitI(Mutex);
}
DoInc();
CondVar.BroadCast();
}
void CheckAndIncrement(unsigned n) {
TGuard<TMutex> guard(Mutex);
Y_VERIFY(Current == n, "must be %d, currently %d", n, Current);
DoInc();
CondVar.BroadCast();
}
void Check(unsigned n) {
TGuard<TMutex> guard(Mutex);
Y_VERIFY(Current == n, "must be %d, currently %d", n, Current);
}
private:
void DoInc() {
unsigned r = ++Current;
Y_UNUSED(r);
}
};
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