public async Task LaunchBuildServerInfoFetchOperationAsync()
{
await TaskScheduler.Default;
CancelBuildStatusFetchOperation();
var launchToken = _launchCancellation.Next();
var buildServerAdapter = await GetBuildServerAdapterAsync().ConfigureAwait(false);
await _revisionGridView.SwitchToMainThreadAsync(launchToken);
_buildServerAdapter?.Dispose();
_buildServerAdapter = buildServerAdapter;
await TaskScheduler.Default;
if (buildServerAdapter == null || launchToken.IsCancellationRequested)
{
return;
}
var scheduler = NewThreadScheduler.Default;
// Run this first as it (may) force start queries
var runningBuildsObservable = buildServerAdapter.GetRunningBuilds(scheduler);
var fullDayObservable = buildServerAdapter.GetFinishedBuildsSince(scheduler, DateTime.Today - TimeSpan.FromDays(3));
var fullObservable = buildServerAdapter.GetFinishedBuildsSince(scheduler);
var fromNowObservable = buildServerAdapter.GetFinishedBuildsSince(scheduler, DateTime.Now);
var isBuildRunning = false;
var cancellationToken = new CompositeDisposable
{
fullDayObservable.OnErrorResumeNext(fullObservable)
.OnErrorResumeNext(Observable.Empty <BuildInfo>()
.DelaySubscription(TimeSpan.FromMinutes(1))
.OnErrorResumeNext(fromNowObservable)
.Retry()
.Repeat())
.ObserveOn(MainThreadScheduler.Instance)
.Subscribe(OnBuildInfoUpdate),
runningBuildsObservable.Do(_ => isBuildRunning = true)
.Finally(() =>
{
Thread.Sleep(TimeSpan.FromSeconds(isBuildRunning ? PollIntervalWhenSomeBuildsAreRunning : PollIntervalWhenNoBuildsAreRunning));
isBuildRunning = false;
})
.Retry()
.Repeat()
.ObserveOn(MainThreadScheduler.Instance)
.Subscribe(OnBuildInfoUpdate)
};
await _revisionGridView.SwitchToMainThreadAsync(launchToken);
CancelBuildStatusFetchOperation();
_buildStatusCancellationToken = cancellationToken;
}
public async Task LaunchBuildServerInfoFetchOperationAsync()
{
await TaskScheduler.Default;
CancelBuildStatusFetchOperation();
var launchToken = _launchCancellation.Next();
var buildServerAdapter = await GetBuildServerAdapterAsync().ConfigureAwait(false);
await _revisionGridView.SwitchToMainThreadAsync(launchToken);
_buildServerAdapter?.Dispose();
_buildServerAdapter = buildServerAdapter;
await TaskScheduler.Default;
if (buildServerAdapter == null || launchToken.IsCancellationRequested)
{
return;
}
var scheduler = NewThreadScheduler.Default;
// Run this first as it (may) force start queries
var runningBuildsObservable = buildServerAdapter.GetRunningBuilds(scheduler);
var fullDayObservable = buildServerAdapter.GetFinishedBuildsSince(scheduler, DateTime.Today - TimeSpan.FromDays(3));
var fullObservable = buildServerAdapter.GetFinishedBuildsSince(scheduler);
bool anyRunningBuilds = false;
var delayObservable = Observable.Defer(() => Observable.Empty <BuildInfo>()
.DelaySubscription(anyRunningBuilds ? ShortPollInterval : LongPollInterval));
var shouldLookForNewlyFinishedBuilds = false;
DateTime nowFrozen = DateTime.Now;
// All finished builds have already been retrieved,
// so looking for new finished builds make sense only if running builds have been found previously
var fromNowObservable = Observable.If(() => shouldLookForNewlyFinishedBuilds,
buildServerAdapter.GetFinishedBuildsSince(scheduler, nowFrozen)
.Finally(() => shouldLookForNewlyFinishedBuilds = false));
var cancellationToken = new CompositeDisposable
{
fullDayObservable.OnErrorResumeNext(fullObservable)
.OnErrorResumeNext(Observable.Empty <BuildInfo>()
.DelaySubscription(TimeSpan.FromMinutes(1))
.OnErrorResumeNext(fromNowObservable)
.Retry()
.Repeat())
.ObserveOn(MainThreadScheduler.Instance)
.Subscribe(OnBuildInfoUpdate),
runningBuildsObservable.Do(buildInfo =>
{
anyRunningBuilds = true;
shouldLookForNewlyFinishedBuilds = true;
})
.Retry()
.Concat(delayObservable)
.Finally(() => anyRunningBuilds = false)
.Repeat()
.ObserveOn(MainThreadScheduler.Instance)
.Subscribe(OnBuildInfoUpdate)
};
await _revisionGridView.SwitchToMainThreadAsync(launchToken);
CancelBuildStatusFetchOperation();
_buildStatusCancellationToken = cancellationToken;
}
