/// <summary>
/// Wraps sharing violations that could occur on a file IO operation.
/// </summary>
/// <param name="action">The action to execute. May not be null.</param>
/// <param name="exceptionsCallback">The exceptions callback. May be null.</param>
/// <param name="retryCount">The retry count.</param>
/// <param name="waitTime">The wait time in milliseconds.</param>
public static void WrapSharingViolations(WrapSharingViolationsCallback action, WrapSharingViolationsExceptionsCallback exceptionsCallback = null, int retryCount = 10, int waitTime = 100)
{
if (action == null)
throw new ArgumentNullException("action");
for (int i = 0; i < retryCount; i++)
{
try
{
action();
return;
}
catch (IOException ioe)
{
if ((IsSharingViolation(ioe) && (i < (retryCount - 1))) || (ioe is FileNotFoundException))
{
var wait = true;
if (exceptionsCallback != null)
{
wait = exceptionsCallback(ioe, i, retryCount, waitTime);
}
if (wait)
{
System.Threading.Thread.Sleep(waitTime);
}
}
else
{
throw;
}
}
}
}
/// <summary>
/// Wraps sharing violations that could occur on a file IO operation.
/// </summary>
/// <param name="action">The action to execute. May not be null.</param>
/// <param name="exceptionsCallback">The exceptions callback. May be null.</param>
/// <param name="retryCount">The retry count.</param>
/// <param name="waitTime">The wait time in milliseconds.</param>
public static void Wrap(WrapSharingViolationsCallback action, WrapSharingViolationsExceptionsCallback exceptionsCallback, int retryCount, int waitTime)
{
if (action == null)
{
throw new ArgumentNullException(nameof(action));
}
for (int i = 0; i < retryCount; i++)
{
try
{
action();
return;
}
catch (IOException ioe)
{
if ((IsSharingViolation(ioe)) && (i < (retryCount - 1)))
{
bool wait = true;
if (exceptionsCallback != null)
{
wait = exceptionsCallback(ioe, i, retryCount, waitTime);
}
if (wait)
{
System.Threading.Thread.Sleep(waitTime);
}
}
else
{
throw;
}
}
}
}
public static T WrapSharingViolations <T>(Func <T> action, WrapSharingViolationsExceptionsCallback exceptionsCallback, int retryCount, int waitTime, bool throwOnError)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
for (int i = 0; i < retryCount; i++)
{
try
{
return(action());
}
catch (Exception e)
{
if ((IsSharingViolation(e as IOException) || e is UnauthorizedAccessException) &&
i < (retryCount - 1))
{
bool wait = true;
if (exceptionsCallback != null)
{
wait = exceptionsCallback(e, i, retryCount, waitTime);
}
if (wait)
{
Thread.Sleep(waitTime);
}
}
else
{
if (throwOnError)
{
throw;
}
// else continue
}
}
}
return(default(T));
}
