private unsafe void OnRunButtonClick(object sender, EventArgs e)
{
if (!EstimateTime(false))
{
return;
}
double start, end;
double.TryParse(startTextBox.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out start);
double.TryParse(endTextBox.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out end);
if (estimatedTime.TotalMinutes > 0.5)
{
string timeString;
if (estimatedTime == TimeSpan.MaxValue)
{
timeString = Tx.T("time.infinitely");
}
else
{
timeString = estimatedTime.ToTextString();
}
if (MessageBox.Show(this, Tx.T("find diffs.errors.interval too big", Tx.N(distance), timeString), Tx.T("main.warning"),
MessageBoxButtons.OKCancel, MessageBoxIcon.Warning) != DialogResult.OK)
{
return;
}
}
long starti = *(long *)&start;
long endi = *(long *)&end;
if (starti > endi)
{
long swap = starti;
starti = endi;
endi = swap;
}
distance = (endi - starti);
long currentProcessed = 0, lastProcessed = 0;
long differencesFound = 0;
SpinLock syncLock = new SpinLock();
ProgressDialog progressDialog = new ProgressDialog {
Text = Tx.T("find diffs.finding.title"),
MainInstruction = Tx.T("find diffs.finding.description"),
Line1 = Tx.T("find diffs.finding.progress", "0", Tx.N(distance)),
ShowInTaskbar = false,
MinimizeBox = false
};
ThreadPool.UnsafeQueueUserWorkItem(delegate {
BeginInvoke((MethodInvoker) delegate {
progressDialog.ShowDialog(this);
});
Stopwatch sw = Stopwatch.StartNew();
Parallel.For(starti, endi, (xi, state) => {
double x = *(double *)ξ
bool isFirst = true;
double computedMinY = double.MaxValue, computedMaxY = double.MinValue;
foreach (ListView.Item item in listView.Items)
{
if (item.NumericValueSource == null || item.CheckState != CheckState.Checked)
{
continue;
}
double y = item.NumericValueSource.Evaluate(x);
if (isFirst)
{
isFirst = false;
computedMinY = y;
computedMaxY = y;
}
else
{
if (y > computedMaxY)
{
computedMaxY = y;
}
else if (y < computedMinY)
{
computedMinY = y;
}
}
}
bool lockTaken = false;
syncLock.Enter(ref lockTaken);
if (!isFirst && computedMinY != computedMaxY)
{
graph.AddDifferenceUnsafe(x, computedMinY, computedMaxY);
differencesFound++;
}
if (sw.ElapsedMilliseconds > 4000)
{
if (progressDialog.IsCancelled)
{
if (lockTaken)
{
syncLock.Exit();
}
state.Stop();
return;
}
sw.Stop();
long delta = (currentProcessed - lastProcessed);
long rate = delta * 1000 / (long)sw.Elapsed.TotalMilliseconds;
TimeSpan remaining = TimeSpan.FromSeconds((distance - currentProcessed) / rate);
lastProcessed = currentProcessed;
BeginInvoke((MethodInvoker) delegate {
progressDialog.Line1 = Tx.T("find diffs.finding.progress", Tx.N(lastProcessed), Tx.N(distance));
progressDialog.Line2 = Tx.T("main.remaining time", remaining.ToTextString());
progressDialog.Progress = (int)(lastProcessed * 100 / distance);
});
sw.Restart();
}
currentProcessed++;
if (lockTaken)
{
syncLock.Exit();
}
});
sw.Stop();
BeginInvoke((MethodInvoker) delegate {
progressDialog.TaskCompleted();
if (!progressDialog.IsCancelled)
{
MessageBox.Show(this,
Tx.T("find diffs.complete.description",
Tx.N(distance),
Tx.N(differencesFound),
Tx.N(differencesFound * 100 / distance)),
Tx.T("find diffs.complete.title"),
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
});
}, null);
}