private async Task <uint> SynchronizeOriginCore(ObjectInfos originInfos, ObjectInfos destinationInfos, CancellationToken cancellationToken)
{
var count = 0u;
foreach (var objectInfo in originInfos)
{
var name = objectInfo.Name;
if (destinationInfos.LastName is string lastName &&
string.CompareOrdinal(name, lastName) > 0)
{
break;
}
cancellationToken.ThrowIfCancellationRequested();
if (!objectInfo.IsHidden &&
!destinationInfos.HasObject(objectInfo))
{
await _taskManager.Enqueue(
this,
token => Upload(name, token),
cancellationToken);
}
originInfos.Skip();
++count;
}
return(count);
}
private async Task SynchronizeCore(CancellationToken cancellationToken)
{
string?lastName = null;
var originInfos = new ObjectInfos(_originReader, lastName);
var destinationInfos = new ObjectInfos(_destinationWriter, lastName);
while (true)
{
_logger?.LogDebug(Events.Populating, "Populating infos.");
await Task.WhenAll(
originInfos.Populate(cancellationToken),
destinationInfos.Populate(cancellationToken));
_logger?.LogDebug(Events.Populated, "Populated infos.");
var counts = await Task.WhenAll(
SynchronizeOrigin(originInfos, destinationInfos, cancellationToken),
SynchronizeDestination(originInfos, destinationInfos, cancellationToken));
if (!destinationInfos.IsLive && !originInfos.IsLive)
{
break;
}
if (counts[0] == 0 && counts[1] == 0)
{
throw new InvalidProgramException(
FormattableString.Invariant($"No progress for iteration.\nOrigin: {originInfos}\nDestination: {destinationInfos}\n"));
}
}
}
private async Task <uint> SynchronizeOrigin(ObjectInfos originInfos, ObjectInfos destinationInfos, CancellationToken cancellationToken)
{
_logger?.LogDebug(Events.SynchronizingOrigin, "Synchronizing origin, last name: \"{LastName}\".", originInfos.LastName);
uint count;
try
{
count = await SynchronizeOriginCore(originInfos, destinationInfos, cancellationToken);
}
catch (Exception exception)
{
_logger?.LogWarning(Events.SynchronizeOriginFailed, exception, "Failed to synchronize origin.");
throw;
}
_logger?.LogInformation(Events.SynchronizedOrigin, "Synchronized origin, count: {Count}, last name: \"{LastName}\".", count, originInfos.LastName);
return(count);
}