| public IncrementWithAction ( long expectedCount, System.Action act ) : bool | ||
| expectedCount | long | |
| act | System.Action | |
| 리턴 | bool | |
protected override void ReadModifyWriteState(Action <SmartSyncState> act)
{
int retries = 5;
int sleepIntervalMs = 1000;
for (; ;)
{
var current = _counter.GetCurrent();
var success = _counter.IncrementWithAction(current, () =>
{
var state = ReadState();
act(state);
var nextStateFile = _stateFile.FullName + ".next";
using (var fs = new FileStream(nextStateFile, FileMode.Create, FileAccess.Write))
{
SmartSyncState.WriteToStream(fs, state);
}
File.Replace(nextStateFile, _stateFile.FullName, null, true);
});
if (success)
{
return;
}
else
{
if (retries < 0)
{
throw new System.IO.IOException("Unable to update after several retries.");
}
System.Threading.Thread.Sleep(sleepIntervalMs);
sleepIntervalMs *= 2;
retries--;
}
}
}
