void V0ToV1AdapterProcess::registered(
const FrameworkID& _frameworkId,
const MasterInfo& masterInfo)
{
LOG(INFO) << "Registered with the Mesos master; invoking connected callback";
connect();
// We need this copy to populate the fields in `Event::Subscribed` upon
// receiving a `reregistered()` callback later.
frameworkId = _frameworkId;
// These events are queued and delivered to the scheduler upon receiving the
// subscribe call later. See comments in `send()` for more details.
{
Event event;
event.set_type(Event::SUBSCRIBED);
Event::Subscribed* subscribed = event.mutable_subscribed();
subscribed->mutable_framework_id()->CopyFrom(evolve(frameworkId.get()));
subscribed->set_heartbeat_interval_seconds(interval.secs());
subscribed->mutable_master_info()->CopyFrom(evolve(masterInfo));
received(event);
}
{
Event event;
event.set_type(Event::HEARTBEAT);
received(event);
}
}
void generate()
{
watch.start();
while (true) {
Duration elapsed = watch.elapsed();
if (duration.isSome() && elapsed >= duration.get()) {
LOG(INFO) << "LoadGenerator generated " << messages
<< " messages in " << elapsed << " (throughput = "
<< (messages / elapsed.secs()) << " messages/sec)";
LOG(INFO) << "Stopping LoadGenerator and scheduler driver";
terminate(self());
driver->stop();
return;
}
Stopwatch reconcile;
reconcile.start();
driver->reconcileTasks(vector<TaskStatus>());
messages++;
// Compensate for the driver call overhead.
os::sleep(std::max(
Duration::zero(),
Seconds(1) / qps - reconcile.elapsed()));
}
}
TEST(Time, timestamp) {
Time t;
ASSERT_FALSE(t);
t = Time::now();
ASSERT_TRUE(t);
Time t2 = t + Duration::mins(1);
Duration d = t2-t;
ASSERT_EQ(60, d.secs());
}
string command(
const set<string>& events,
const set<pid_t>& pids,
const Duration& duration)
{
ostringstream command;
command << "perf stat -x" << PERF_DELIMITER << " -a";
command << " --log-fd 1"; // Ensure all output goes to stdout.
command << " --event " << strings::join(",", events);
command << " --pid " << strings::join(",", pids);
command << " -- sleep " << stringify(duration.secs());
return command.str();
}
// Suspends execution for the given duration.
inline Try<Nothing> sleep(const Duration& duration)
{
timespec remaining;
remaining.tv_sec = static_cast<long>(duration.secs());
remaining.tv_nsec =
static_cast<long>((duration - Seconds(remaining.tv_sec)).ns());
while (nanosleep(&remaining, &remaining) == -1) {
if (errno == EINTR) {
continue;
} else {
return ErrnoError();
}
}
return Nothing();
}
inline std::ostream& operator<<(std::ostream& stream, const Duration& duration_)
{
// Output the duration in full double precision and save the old precision.
std::streamsize precision =
stream.precision(std::numeric_limits<double>::digits10);
// Parse the duration as the sign and the absolute value.
Duration duration = duration_;
if (duration_ < Duration::zero()) {
stream << "-";
// Duration::min() may not be representable as a positive Duration.
if (duration_ == Duration::min()) {
duration = Duration::max();
} else {
duration = duration_ * -1;
}
}
// First determine which bucket of time unit the duration falls into
// then check whether the duration can be represented as a whole
// number with this time unit or a smaller one.
// e.g. 1.42857142857143weeks falls into the 'Weeks' bucket but
// reads better with a smaller unit: '10days'. So we use 'days'
// instead of 'weeks' to output the duration.
int64_t nanoseconds = duration.ns();
if (duration < Microseconds(1)) {
stream << duration.ns() << Nanoseconds::units();
} else if (duration < Milliseconds(1)) {
if (nanoseconds % Duration::MICROSECONDS != 0) {
// We can't get a whole number using this unit but we can at
// one level down.
stream << duration.ns() << Nanoseconds::units();
} else {
stream << duration.us() << Microseconds::units();
}
} else if (duration < Seconds(1)) {
if (nanoseconds % Duration::MILLISECONDS != 0 &&
nanoseconds % Duration::MICROSECONDS == 0) {
stream << duration.us() << Microseconds::units();
} else {
stream << duration.ms() << Milliseconds::units();
}
} else if (duration < Minutes(1)) {
if (nanoseconds % Duration::SECONDS != 0 &&
nanoseconds % Duration::MILLISECONDS == 0) {
stream << duration.ms() << Milliseconds::units();
} else {
stream << duration.secs() << Seconds::units();
}
} else if (duration < Hours(1)) {
if (nanoseconds % Duration::MINUTES != 0 &&
nanoseconds % Duration::SECONDS == 0) {
stream << duration.secs() << Seconds::units();
} else {
stream << duration.mins() << Minutes::units();
}
} else if (duration < Days(1)) {
if (nanoseconds % Duration::HOURS != 0 &&
nanoseconds % Duration::MINUTES == 0) {
stream << duration.mins() << Minutes::units();
} else {
stream << duration.hrs() << Hours::units();
}
} else if (duration < Weeks(1)) {
if (nanoseconds % Duration::DAYS != 0 &&
nanoseconds % Duration::HOURS == 0) {
stream << duration.hrs() << Hours::units();
} else {
stream << duration.days() << Days::units();
}
} else {
if (nanoseconds % Duration::WEEKS != 0 &&
nanoseconds % Duration::DAYS == 0) {
stream << duration.days() << Days::units();
} else {
stream << duration.weeks() << Weeks::units();
}
}
// Return the stream to original formatting state.
stream.precision(precision);
return stream;
}
