private void EnqueueFetchBlockJob(SyncAnnouncementDto syncAnnouncementDto, int retryTimes)
{
_blockSyncQueueService.Enqueue(async() =>
{
Logger.LogTrace(
$"Block sync: Fetch block, block height: {syncAnnouncementDto.SyncBlockHeight}, block hash: {syncAnnouncementDto.SyncBlockHash}.");
var fetchResult = false;
if (ValidateQueueAvailability())
{
fetchResult = await _blockFetchService.FetchBlockAsync(syncAnnouncementDto.SyncBlockHash,
syncAnnouncementDto.SyncBlockHeight, syncAnnouncementDto.SuggestedPeerPubkey);
}
if (fetchResult)
{
return;
}
if (retryTimes > 1)
{
EnqueueFetchBlockJob(syncAnnouncementDto, retryTimes - 1);
}
else if (_announcementCacheProvider.TryGetAnnouncementNextSender(syncAnnouncementDto.SyncBlockHash, out var senderPubKey))
{
syncAnnouncementDto.SuggestedPeerPubkey = senderPubKey;
EnqueueFetchBlockJob(syncAnnouncementDto, BlockSyncConstants.FetchBlockRetryTimes);
}
}, OSConstants.BlockFetchQueueName);
}
public async Task SyncByAnnouncementAsync(Chain chain, SyncAnnouncementDto syncAnnouncementDto)
{
if (syncAnnouncementDto.SyncBlockHash != null && syncAnnouncementDto.SyncBlockHeight <=
chain.LongestChainHeight + BlockSyncConstants.BlockSyncModeHeightOffset)
{
if (!_blockSyncQueueService.ValidateQueueAvailability(OSConstants.BlockFetchQueueName))
{
Logger.LogWarning("Block sync fetch queue is too busy.");
return;
}
EnqueueFetchBlockJob(syncAnnouncementDto, BlockSyncConstants.FetchBlockRetryTimes);
}
else
{
await _blockDownloadJobManager.EnqueueAsync(syncAnnouncementDto.SyncBlockHash, syncAnnouncementDto
.SyncBlockHeight,
syncAnnouncementDto.BatchRequestBlockCount, syncAnnouncementDto.SuggestedPeerPubkey);
}
}
