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// class AnotherClock
// ==================
class AnotherClock {
// 'AnotherClock' is a C++11-compatible clock that is very similar to
// 'bsl::chrono::steady_clock'. The only difference is that it uses a
// different epoch; it begins 10000 "ticks" after the beginning of
// 'steady_clock's epoch.
private:
typedef bsl::chrono::steady_clock base_clock;
public:
typedef base_clock::duration duration;
typedef base_clock::rep rep;
typedef base_clock::period period;
typedef bsl::chrono::time_point<AnotherClock> time_point;
static const bool is_steady = base_clock::is_steady;
// CLASS METHODS
static time_point now();
// Return a time point representing the time since the beginning of the
// epoch.
};
// CLASS METHODS
AnotherClock::time_point AnotherClock::now()
{
base_clock::duration ret = base_clock::now().time_since_epoch();
return AnotherClock::time_point(ret - duration(10000));
}
// ===============
// class HalfClock
// ===============
class HalfClock {
// 'HalfClock' is a C++11-compatible clock that is very similar to
// 'bsl::chrono::steady_clock'. The difference is that it runs "half as
// fast" as 'steady_clock'.
private:
typedef bsl::chrono::steady_clock base_clock;
public:
typedef base_clock::duration duration;
typedef base_clock::rep rep;
typedef base_clock::period period;
typedef bsl::chrono::time_point<HalfClock> time_point;
static const bool is_steady = base_clock::is_steady;
// CLASS METHODS
static time_point now();
// Return a time point representing the time since the beginning of the
// epoch.
};
// CLASS METHODS
HalfClock::time_point HalfClock::now()
{
base_clock::duration ret = base_clock::now().time_since_epoch();
return HalfClock::time_point(ret/2);
}
// BDE_VERIFY pragma: pop
template <class CLOCK>
int WaitForTimeout(bslmt::Condition& mX, bslmt::Mutex *m, int secondsToWait)
// Wait on the specified 'Condition' 'mX' for the specified 'secondsToWait'
// seconds based on the specified 'CLOCK'. If the call to 'timedWait'
// (using the specified mutex 'm') returns 'e_TIMED_OUT', indicating that
// a timeout has occurred, verify that at least that much time has elapsed
// (measured by the clock).
{
typename CLOCK::time_point tp = CLOCK::now() +
bsl::chrono::seconds(secondsToWait);
int ret = mX.timedWait(m, tp);
if (bslmt::Condition::e_TIMED_OUT == ret) {
ASSERT(CLOCK::now() >= tp);
}
return ret;
}
#endif
// ============================================================================
// MAIN PROGRAM
// ----------------------------------------------------------------------------
int main(int argc, char *argv[])
{
int test = argc > 1 ? atoi(argv[1]) : 0;
verbose = argc > 2;
veryVerbose = argc > 3;
cout << "TEST " << __FILE__ << " CASE " << test << endl;
switch (test) { case 0:
case 3: {