async Task Replace(StreamReader reader, StreamWriter writer)
{
Targets.Init();
DateTime lastUpdateTime = DateTime.Now;
long cnt = 0;
const int chunkSize = 100000;
while (true)
{
var buffer = new char[chunkSize];
var n = await reader.ReadAsync(buffer, 0, buffer.Length);
if (n == 0)
{
break;
}
cnt += n;
Array.Resize(ref buffer, n);
await writer.WriteAsync(await Task.Run(() => Replace_SubMethod(buffer)));
var time = DateTime.Now;
if ((time - lastUpdateTime).TotalSeconds > 0.1)
{
lastUpdateTime = time;
this.Title = $"Processing {cnt} / {reader.BaseStream.Length} ({(100.0 * cnt / reader.BaseStream.Length).ToString("F3")}%)";
}
}
this.Title = $"OK - {DateTime.Now}";
}
async Task ReplaceMultiThread(StreamReader reader, StreamWriter writer)
{
await Task.Run(() =>
{
Targets.Init();
DateTime lastUpdateTime = DateTime.Now;
long cnt = 0;
const int chunkSize = 100000;
ThreadPool.SetMaxThreads(50, 50);
var runningCount = 1;
AutoResetEvent done = new AutoResetEvent(false);
Dictionary <int, string> results = new Dictionary <int, string>();
int writeIndex = 0;
for (int readIndex = 0; ; readIndex++)
{
var buffer = new char[chunkSize];
var n = reader.ReadBlock(buffer, 0, buffer.Length);
if (n == 0)
{
break;
}
cnt += n;
Array.Resize(ref buffer, n);
var time = DateTime.Now;
if ((time - lastUpdateTime).TotalSeconds > 0.1)
{
lastUpdateTime = time;
Dispatcher.Invoke(() => this.Title = $"Processing {cnt} / {reader.BaseStream.Length} ({(100.0 * cnt / reader.BaseStream.Length).ToString("F3")}%)");
}
Interlocked.Increment(ref runningCount);
ThreadPool.QueueUserWorkItem(new WaitCallback(o =>
{
var result = Replace_SubMethod((char[])((object[])o)[1]);
lock (results)
{
results.Add((int)((object[])o)[0], result);
while (results.ContainsKey(writeIndex))
{
var str = results[writeIndex];
results.Remove(writeIndex);
writer.Write(str);
writeIndex++;
}
}
if (0 == Interlocked.Decrement(ref runningCount))
{
done.Set();
}
}), new object[] { readIndex, buffer });
}
if (0 == Interlocked.Decrement(ref runningCount))
{
done.Set();
}
done.WaitOne();
Dispatcher.Invoke(() => this.Title = $"OK - {DateTime.Now}");
});
}
