///////////////////////////////////////////////////////////////////////
public void Start(
long iterations
)
{
Reset(false);
this.iterations += iterations;
startCount = PerformanceOps.GetCount();
}
public static void Start(
ref long startCount, /* out */
ref double microseconds /* in, out */
)
{
microseconds = 0;
startCount = PerformanceOps.GetCount();
}
///////////////////////////////////////////////////////////////////////
public static void Stop(
long startCount, /* in */
ref long stopCount, /* out */
ref double microseconds /* in, out */
)
{
stopCount = PerformanceOps.GetCount();
microseconds += PerformanceOps.GetMicroseconds(
startCount, stopCount, 1);
}
///////////////////////////////////////////////////////////////////////
public void Stop()
{
stopCount = PerformanceOps.GetCount();
microseconds += PerformanceOps.GetMicroseconds(
startCount, stopCount, iterations);
if (!quiet)
{
Report();
}
}
///////////////////////////////////////////////////////////////////////
public static ReturnCode Wait(
Interpreter interpreter,
long microseconds,
bool timeout,
bool strict,
ref Result error
) /* THREAD-SAFE */
{
ReturnCode code = ReturnCode.Ok;
if (interpreter != null)
{
int waitCount;
if ((waitCount = interpreter.EnterWait()) > 0)
{
if (microseconds == 0)
{
#if WINFORMS
//
// NOTE: If necessary, process all Windows messages
// from the queue.
//
if (!strict)
{
code = WindowOps.ProcessEvents(
interpreter, ref error);
}
if (code == ReturnCode.Ok)
#endif
{
//
// NOTE: Yield to other running threads. This
// also gives them an opportunity to cancel
// the script in progress on this thread.
//
HostOps.Yield();
}
}
else
{
//
// NOTE: Keep track of how many iterations through
// the loop we take.
//
int iterations = 0;
//
// HACK: Account for our processing overhead; use half
// of the requested delay.
//
int milliseconds = ConversionOps.ToInt(
PerformanceOps.GetMilliseconds(microseconds) /
WaitDivisor);
if (milliseconds < 0)
{
milliseconds = 0;
}
if (milliseconds > WaitMaximumSleepTime)
{
milliseconds = WaitMaximumSleepTime;
}
//
// NOTE: For more precise timing, use the high-resolution
// CPU performance counter.
//
long startCount = PerformanceOps.GetCount();
//
// BUGFIX: Make sure the slop time does not exceed the
// actual wait.
//
long slopMicroseconds = Math.Min(
microseconds / WaitSlopDivisor, WaitSlopMinimumTime);
//
// NOTE: Delay for approximately the specified number of
// microseconds, optionally timing out if we cannot
// obtain the interpreter lock before the time period
// elapses.
//
while (((code = Interpreter.EventReady(interpreter,
timeout ? milliseconds : _Timeout.Infinite,
ref error)) == ReturnCode.Ok) &&
!PerformanceOps.HasElapsed(startCount,
microseconds, slopMicroseconds))
{
#if WINFORMS
if (!strict)
{
code = WindowOps.ProcessEvents(interpreter, ref error);
if (code != ReturnCode.Ok)
{
break;
}
}
#endif
HostOps.SleepOrMaybeComplain(interpreter, milliseconds); iterations++;
}
long stopCount = PerformanceOps.GetCount();
double elapsedMicroseconds = PerformanceOps.GetMicroseconds(
startCount, stopCount, 1);
TraceOps.DebugTrace(String.Format(
"Wait: code = {0}, iterations = {1}, microseconds = {2}, " +
"elapsedMicroseconds = {3}, sleepMilliseconds = {4}, " +
"slopMicroseconds = {5}, differenceMicroseconds = {6}, " +
"waitCount = {7}, error = {8}",
code, iterations, microseconds, elapsedMicroseconds, milliseconds,
slopMicroseconds, elapsedMicroseconds - (double)microseconds,
waitCount, FormatOps.WrapOrNull(true, true, error)),
typeof(EventOps).Name, TracePriority.EventDebug);
}
/* IGNORED */
interpreter.ExitWait();
}
else
{
error = "wait subsystem locked";
code = ReturnCode.Error;
}
}
else
{
error = "invalid interpreter";
code = ReturnCode.Error;
}
return(code);
}
