/// <summary>
/// Execute an action. On error retry multiple times, sleep between the retries.
/// </summary>
// ReSharper disable once UnusedMember.Global
public static void Protect(
Action action,
ZlpSimpleFileAccessProtectorInformation info = null)
{
info = info ?? new ZlpSimpleFileAccessProtectorInformation();
if (info.Use)
{
var count = 0;
while (true)
{
try
{
action?.Invoke();
return;
}
catch (Exception x)
{
Trace.TraceWarning($@"Error during file operation. ('{info.Info}'): {x.Message}");
if (count++ > info.RetryCount)
{
throw new ZlpSimpleFileAccessProtectorException(
string.Format(Resources.TriedTooOften, info.RetryCount), x);
}
else
{
if (info.DoGarbageCollectBeforeSleep)
{
Trace.TraceInformation(
$@"Error '{x}' during file operation, tried {count} times, doing a garbage collect now.");
GC.Collect();
}
Trace.TraceInformation(
$@"Error '{x}' during file operation, tried {count} times, sleeping for {info
.SleepDelaySeconds} seconds and retry again.");
Thread.Sleep(TimeSpan.FromSeconds(info.SleepDelaySeconds));
}
}
}
}
else
{
action?.Invoke();
}
}
/// <summary>
/// Execute an action. On error retry multiple times, sleep between the retries.
/// </summary>
// ReSharper disable once UnusedMember.Global
public static T Protect <T>(
Func <T> func,
ZlpSimpleFileAccessProtectorInformation info = null)
{
info = info ?? new ZlpSimpleFileAccessProtectorInformation();
if (info.Use)
{
var count = 0;
while (true)
{
try
{
return(func.Invoke());
}
catch (Exception x)
{
Trace.TraceWarning($@"Error during file operation. ('{info.Info}'): {x.Message}");
if (count++ > info.RetryCount)
{
throw new ZlpSimpleFileAccessProtectorException(
string.Format(
info.RetryCount == 1
? Resources.TriedTooOftenSingular
: Resources.TriedTooOftenPlural, info.RetryCount), x);
}
else
{
var p = new HandleExceptionInfo(x, count);
info.HandleException?.Invoke(p);
if (p.WantThrow)
{
throw new ZlpSimpleFileAccessProtectorException(
string.Format(
info.RetryCount == 1
? Resources.TriedTooOftenSingular
: Resources.TriedTooOftenPlural, info.RetryCount), x);
}
if (info.DoGarbageCollectBeforeSleep)
{
Trace.TraceInformation(
$@"Error '{x}' during file operation, tried {
count
} times, doing a garbage collect now.");
DoGarbageCollect();
}
Trace.TraceInformation(
$@"Error '{x}' during file operation, tried {count} times, sleeping for {
info
.SleepDelaySeconds
} seconds and retry again.");
Thread.Sleep(TimeSpan.FromSeconds(info.SleepDelaySeconds));
}
}
}
}
else
{
return(func.Invoke());
}
}
