/// <summary>
/// Marks the specified <see cref="IPromise"/> as failure. If the
/// <see cref="IPromise"/> is done already, log a message.
/// </summary>
/// <param name="promise">The <see cref="IPromise"/> to complete.</param>
/// <param name="cause">The <see cref="Exception"/> to fail the <see cref="IPromise"/> with.</param>
/// <param name="logger">The <see cref="IInternalLogger"/> to use to log a failure message.</param>
public static void SafeSetFailure(IPromise promise, Exception cause, IInternalLogger logger)
{
if (!promise.IsVoid && !promise.TrySetException(cause) && logger is object)
{
logger.FailedToMarkAPromiseAsFailure(promise, cause);
}
}
/// <summary>
/// Try to mark the <see cref="IPromise"/> as failure and log if <paramref name="logger"/> is not <c>null</c> in case this fails.
/// </summary>
/// <param name="p"></param>
/// <param name="cause"></param>
/// <param name="logger"></param>
public static void TryFailure(IPromise p, Exception cause, IInternalLogger logger)
{
if (!p.TrySetException(cause) && logger is object)
{
logger.FailedToMarkAPromiseAsFailure(p, cause);
}
}
/// <summary>
/// Marks the specified <see cref="IPromise"/> as failure. If the
/// <see cref="IPromise"/> is done already, log a message.
/// </summary>
/// <param name="promise">The <see cref="IPromise"/> to complete.</param>
/// <param name="cause">The <see cref="Exception"/> to fail the <see cref="IPromise"/> with.</param>
/// <param name="logger">The <see cref="IInternalLogger"/> to use to log a failure message.</param>
public static void SafeSetFailure(IPromise promise, Exception cause, IInternalLogger logger)
{
if (!promise.IsVoid && !promise.TrySetException(cause) && logger.WarnEnabled)
{
var err = promise.Task.Exception?.InnerException;
if (err is null)
{
logger.FailedToMarkAPromiseAsFailure(promise, cause);
}
else
{
logger.FailedToMarkAPromiseAsFailureFailed(promise, cause, err);
}
}
}
