private void CheckAndRequest(object sender, EventArgs e)
{
Debug.WriteLine("CheckAndRequest");
while (lastChunk != fs.ChunksState.Length && fs.ChunksState.Get(lastChunk))
{
lastChunk++;
}
lock (endPointManagers) {
int c = lastChunk;
foreach (EndPointManager epm in endPointManagers.Values)
{
if (epm.ClientFileState != null && epm.AllChunksFinished)
{
Dictionary <int, Chunk> chunks = new Dictionary <int, Chunk>();
for (; c < fs.NumberOfChunks && chunks.Count < 8; c++)
{
if (fs.ChunksState.Get(c) == false &&
this.requested.Get(c) == false &&
epm.ClientFileState.Get(c) == true)
{
int chunkPartCount, chunkSize;
if (c != fs.NumberOfChunks - 1)
{
chunkPartCount = Sizes.ChunkPartCount;
chunkSize = Sizes.ChunkSize;
}
else
{
chunkPartCount = Sizes.LastChunkPartsCount(fs.FileDescription.FileSize);
chunkSize = Sizes.LastChunkSize(fs.FileDescription.FileSize);
}
chunks.Add(c, new Chunk(c, epm, chunkPartCount, chunkSize));
this.requested.Set(c, true);
}
}
if (chunks.Count != 0)
{
epm.AssignNewChunks(chunks);
FileTransferCenter.ftc.ndm.RequestChunks(epm.EndPointId, this.fileId, chunks.Keys.ToArray());
}
}
}
}
}
private void SendLastChunk(int requester, int chunk)
{
byte[] chunkData = fs.FileManager.ReadChunkData(chunk);
int chunkPartsCount = Sizes.LastChunkPartsCount(fs.FileDescription.FileSize);
for (int i = 0; i < chunkPartsCount - 1; i++)
{
SendChunkPart(requester, chunk, i, chunkData, i * Sizes.ChunkPartSize, Sizes.ChunkPartSize);
}
int lastChunkPartSize = Sizes.LastChunkPartSize(fs.FileDescription.FileSize);
SendChunkPart(
requester,
chunk,
chunkPartsCount - 1,
chunkData,
(chunkPartsCount - 1) * Sizes.ChunkPartSize,
lastChunkPartSize);
}
public void ResendChunkPart(int requester, int chunkId, int chunkPartId)
{
if (paused)
{
return;
}
byte[] chunkPart;
if (chunkId == fs.NumberOfChunks - 1)
{
if (Sizes.LastChunkPartsCount(fs.FileDescription.FileSize) - 1 == chunkPartId)
{
chunkPart = fs.FileManager.ReadLastChunkLastPartData(chunkId, chunkPartId);
SendChunkPart(requester, chunkId, chunkPartId, chunkPart, 0, chunkPart.Length);
return;
}
}
chunkPart = fs.FileManager.GetDataOfChunkPart(chunkId, chunkPartId);
SendChunkPart(requester, chunkId, chunkPartId, chunkPart, 0, chunkPart.Length);
}