public Task <Result <Unit> > RetryStopService(string name,
int maxAttempts, TimeSpan retryInterval)
{
return(Retry.GetAsync(
getValue: () => GetService(name)
.MapAsync(s =>
{
if (s.Status == ServiceControllerStatus.Stopped)
{
return true;
}
else
{
s.Stop();
return false;
}
}),
predicate: result => result.HasValue && result.Value,
getErrorMessage: result => result.HasValue
? "Timed out without getting an acceptable value."
: $"Timed out with exception: '{result.Error.Message}'",
maxAttempts: maxAttempts,
interval: retryInterval)
.IgnoreAsync());
}
public Task <Result <Unit> > RetryStartService(string name,
int maxAttempts, TimeSpan retryInterval)
{
const string alreadyRunning = "An instance of the service is already running";
return(Retry.GetAsync(
getValue: () => GetService(name)
.MapAsync(s =>
{
if (s.Status == ServiceControllerStatus.Running)
{
return true;
}
else
{
s.Start();
return false;
}
}),
predicate: result =>
(result.HasValue && result.Value) ||
(!result.HasValue && result.Error.InnerException.Message == alreadyRunning),
getErrorMessage: result => result.HasValue
? "Timed out without getting an acceptable value."
: $"Timed out with exception: '{result.Error.Message}'",
maxAttempts: maxAttempts,
interval: retryInterval)
.IgnoreAsync()
.CatchAsync(er => er.InnerException.Message == alreadyRunning,
er => Unit.Value.AsResult()));
}
