private static Task WalkSingleBlockBlobAsync(
Stream stream,
SemaphoreSlim?blockActionSemaphore,
SingleBlockBlobCallbackAsync singleBlockCallback,
long bytesLeftInBlob)
{
return(ReadBlockAsync(
stream,
blockActionSemaphore,
bytesLeftInBlob,
async(blockBufferHandle, blockLength, blockHash) =>
{
try
{
var rollingId = new RollingBlobIdentifierWithBlocks();
var blobIdentifierWithBlocks = rollingId.Finalize(blockHash);
await singleBlockCallback(blockBufferHandle.Value, blockLength, blobIdentifierWithBlocks).ConfigureAwait(false);
}
finally
{
blockBufferHandle.Dispose();
blockActionSemaphore?.Release();
}
}));
}
private static void WalkSingleBlockBlob(Stream stream, SemaphoreSlim?blockActionSemaphore, SingleBlockBlobCallback singleBlockCallback, long bytesLeftInBlob)
{
ReadBlock(
stream,
blockActionSemaphore,
bytesLeftInBlob,
(blockBufferHandle, blockLength, blockHash) =>
{
try
{
var rollingId = new RollingBlobIdentifierWithBlocks();
var blobIdentifierWithBlocks = rollingId.Finalize(blockHash);
singleBlockCallback(blockBufferHandle.Value, blockLength, blobIdentifierWithBlocks);
}
finally
{
blockBufferHandle.Dispose();
blockActionSemaphore?.Release();
}
});
}
private static async Task WalkMultiBlockBlobAsync(
Stream stream,
SemaphoreSlim?blockActionSemaphore,
bool multiBlocksInParallel,
MultipleBlockBlobCallbackAsync multipleBlockCallback,
MultipleBlockBlobSealCallbackAsync multipleBlockSealCallback,
long bytesLeftInBlob)
{
var rollingId = new RollingBlobIdentifierWithBlocks();
BlobIdentifierWithBlocks?blobIdentifierWithBlocks = null;
var tasks = new List <Task>();
do
{
await ReadBlockAsync(
stream,
blockActionSemaphore,
bytesLeftInBlob,
async (blockBufferHandle, blockLength, blockHash) =>
{
bytesLeftInBlob -= blockLength;
bool isFinalBlock = bytesLeftInBlob == 0;
try
{
if (isFinalBlock)
{
blobIdentifierWithBlocks = rollingId.Finalize(blockHash);
}
else
{
rollingId.Update(blockHash);
}
}
catch
{
CleanupBufferAndSemaphore(blockBufferHandle, blockActionSemaphore);
throw;
}
Task multiBlockTask = Task.Run(async() =>
{
try
{
await multipleBlockCallback(blockBufferHandle.Value, blockLength, blockHash, isFinalBlock).ConfigureAwait(false);
}
finally
{
CleanupBufferAndSemaphore(blockBufferHandle, blockActionSemaphore);
}
});
tasks.Add(multiBlockTask);
if (!multiBlocksInParallel)
{
await multiBlockTask.ConfigureAwait(false);
}
}).ConfigureAwait(false);
}while (bytesLeftInBlob > 0);
await Task.WhenAll(tasks).ConfigureAwait(false);
await multipleBlockSealCallback(blobIdentifierWithBlocks).ConfigureAwait(false);
}
private static void WalkMultiBlockBlob(
Stream stream,
SemaphoreSlim?blockActionSemaphore,
bool multiBlocksInParallel,
MultipleBlockBlobCallback multipleBlockCallback,
MultipleBlockBlobSealCallback multipleBlockSealCallback,
long bytesLeftInBlob)
{
var rollingId = new RollingBlobIdentifierWithBlocks();
BlobIdentifierWithBlocks?blobIdentifierWithBlocks = null;
Lazy <List <Task> > tasks = new Lazy <List <Task> >(() => new List <Task>());
do
{
ReadBlock(
stream,
blockActionSemaphore,
bytesLeftInBlob,
(blockBufferHandle, blockLength, blockHash) =>
{
bytesLeftInBlob -= blockLength;
bool isFinalBlock = bytesLeftInBlob == 0;
try
{
if (isFinalBlock)
{
blobIdentifierWithBlocks = rollingId.Finalize(blockHash);
}
else
{
rollingId.Update(blockHash);
}
}
catch
{
CleanupBufferAndSemaphore(blockBufferHandle, blockActionSemaphore);
throw;
}
if (multiBlocksInParallel)
{
tasks.Value.Add(Task.Run(() =>
{
try
{
multipleBlockCallback(blockBufferHandle.Value, blockLength, blockHash, isFinalBlock);
}
finally
{
CleanupBufferAndSemaphore(blockBufferHandle, blockActionSemaphore);
}
}));
}
else
{
try
{
multipleBlockCallback(blockBufferHandle.Value, blockLength, blockHash, isFinalBlock);
}
finally
{
CleanupBufferAndSemaphore(blockBufferHandle, blockActionSemaphore);
}
}
});
}while (bytesLeftInBlob > 0);
if (tasks.IsValueCreated)
{
Task.WaitAll(tasks.Value.ToArray());
}
multipleBlockSealCallback(blobIdentifierWithBlocks);
}
