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[CHANGE] Reworked ExtendedBackgroundService.cs with State logic and actions

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max
2025-10-08 18:22:16 +02:00
parent b8d2573d78
commit 2f19d60be0
7 changed files with 230 additions and 86 deletions
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95
Manager.App/Services/ExtendedBackgroundService.cs
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@@ -7,52 +7,91 @@ public abstract class ExtendedBackgroundService(string name, string description,
: BackgroundService
{
private TaskCompletionSource _resumeSignal = new(TaskCreationOptions.RunContinuationsAsynchronously);
private readonly List<ServiceAction> _actions = [];
private TaskCompletionSource? _manualContinue;
public ServiceState State { get; private set; } = ServiceState.Stopped;
public CircularBuffer<ServiceEvent> ProgressEvents { get; } = new(500);
public string Name { get; } = name;
public string Description { get; set; } = description;
public TimeSpan ExecuteInterval { get; set; } = executeInterval ?? TimeSpan.FromMinutes(1);
public string Description { get; } = description;
public TimeSpan ExecuteInterval { get; } = executeInterval ?? TimeSpan.FromSeconds(5);
public IReadOnlyList<ServiceAction> Actions => _actions;
protected void AddActions(IEnumerable<ServiceAction> actions)
{
_actions.AddRange(actions);
}
protected sealed override async Task ExecuteAsync(CancellationToken stoppingToken)
{
State = ServiceState.Running;
logger.LogInformation("Initializing background service: {ServiceName}", Name);
_actions.AddRange(
[
new ServiceAction("Start", "Start the service (after the service is stopped of faulted.)", Start, () => State is ServiceState.Stopped or ServiceState.Faulted),
new ServiceAction("Pause", "Pause the service", Pause, () => State != ServiceState.Paused),
new ServiceAction("Resume", "Resume the service", Resume, () => State != ServiceState.Running)
]);
await InitializeAsync(stoppingToken);
try
while (!stoppingToken.IsCancellationRequested)
{
logger.LogInformation("Running background service: {ServiceName}", Name);
while (!stoppingToken.IsCancellationRequested)
if (State == ServiceState.Running)
{
if (State == ServiceState.Paused)
try
{
_resumeSignal = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
await _resumeSignal.Task.WaitAsync(stoppingToken);
}
logger.LogInformation("Started running background service: {ServiceName}", Name);
while (!stoppingToken.IsCancellationRequested)
{
if (State == ServiceState.Paused)
{
_resumeSignal = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
await _resumeSignal.Task.WaitAsync(stoppingToken);
}
await ExecuteServiceAsync(stoppingToken);
await Task.Delay(ExecuteInterval, stoppingToken);
await ExecuteServiceAsync(stoppingToken);
await Task.Delay(ExecuteInterval, stoppingToken);
}
}
catch (OperationCanceledException e)
{
logger.LogInformation(e, "Service {ServiceName} received cancellation", Name);
}
catch (Exception e)
{
State = ServiceState.Faulted;
logger.LogError(e, "Background service {ServiceName} faulted!", Name);
LogEvent("Error executing background service.", LogSeverity.Error);
}
finally
{
State = ServiceState.Stopped;
}
}
}
catch (Exception e)
{
if (e is not OperationCanceledException)
{
State = ServiceState.Faulted;
logger.LogError(e,"Background service {ServiceName} faulted!", Name);
throw;
}
logger.LogInformation(e,"Service {ServiceName} received cancellation", Name);
}
finally
{
State = ServiceState.Stopped;
_manualContinue = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
var delayTask = Task.Delay(TimeSpan.FromMinutes(5), stoppingToken);
await Task.WhenAny(delayTask, _manualContinue.Task);
_manualContinue = null;
}
}
protected void LogEvent(string message, LogSeverity severity = LogSeverity.Info) => ProgressEvents.Add(new ServiceEvent(string.Intern(Name), message, DateTime.UtcNow, severity));
public void Start()
{
if (State is ServiceState.Stopped or ServiceState.Faulted)
{
State = ServiceState.Running;
_manualContinue?.TrySetResult();
LogEvent("Started service.");
}
}
public void Pause()
{
if (State == ServiceState.Running)
@@ -94,4 +133,6 @@ public enum ServiceState
Paused
}
public record struct ServiceEvent(string Source, string Message, DateTime DateUtc, LogSeverity Severity);
public record struct ServiceEvent(string Source, string Message, DateTime DateUtc, LogSeverity Severity);
public record ServiceAction(string Id, string Description, Action Action, Func<bool> IsEnabled);