private void SerializeChunk(object context)
{
SerializeChunkParms parms = (SerializeChunkParms)context;
try {
SerializeChunk(parms.Output, parms.ChunkNumber, parms.ChunkOffset, parms.ChunkSize, parms, parms.PreviousLock, parms.DeferredFormatter);
} catch (Exception ex) {
parms.Exceptions.Add(ex);
}
}
void IDeferredSerializable.FinishSerialization(Stream output, DeferredFormatter context)
{
bool useCompression = context.UseCompression;
// formatVersion = 0 for GZIP, or 1 for uncompressed
if (useCompression)
{
output.WriteByte(0);
}
else
{
output.WriteByte(1);
}
// chunkSize
WriteUInt(output, serializationChunkSize);
uint chunkCount = (uint)((this.length + (long)serializationChunkSize - 1) / (long)serializationChunkSize);
PaintDotNet.Threading.ThreadPool threadPool = new PaintDotNet.Threading.ThreadPool(Processor.LogicalCpuCount);
ArrayList exceptions = ArrayList.Synchronized(new ArrayList(Processor.LogicalCpuCount));
WaitCallback callback = new WaitCallback(SerializeChunk);
object previousLock = null;
for (uint chunk = 0; chunk < chunkCount; ++chunk)
{
long chunkOffset = (long)chunk * (long)serializationChunkSize;
uint chunkSize = Math.Min((uint)serializationChunkSize, (uint)(this.length - chunkOffset));
SerializeChunkParms parms = new SerializeChunkParms(output, chunk, chunkOffset, chunkSize, previousLock, context, exceptions);
threadPool.QueueUserWorkItem(callback, parms);
previousLock = parms;
}
threadPool.Drain();
output.Flush();
if (exceptions.Count > 0)
{
throw new SerializationException("Exception thrown by worker thread", (Exception)exceptions[0]);
}
return;
}
void IDeferredSerializable.FinishSerialization(Stream output, DeferredFormatter context)
{
bool useCompression = context.UseCompression;
// formatVersion = 0 for GZIP, or 1 for uncompressed
if (useCompression)
{
output.WriteByte(0);
}
else
{
output.WriteByte(1);
}
// chunkSize
WriteUInt(output, serializationChunkSize);
uint chunkCount = (uint)((this.length + (long)serializationChunkSize - 1) / (long)serializationChunkSize);
PaintDotNet.Threading.ThreadPool threadPool = new PaintDotNet.Threading.ThreadPool(Processor.LogicalCpuCount);
ArrayList exceptions = ArrayList.Synchronized(new ArrayList(Processor.LogicalCpuCount));
WaitCallback callback = new WaitCallback(SerializeChunk);
object previousLock = null;
for (uint chunk = 0; chunk < chunkCount; ++chunk)
{
long chunkOffset = (long)chunk * (long)serializationChunkSize;
uint chunkSize = Math.Min((uint)serializationChunkSize, (uint)(this.length - chunkOffset));
SerializeChunkParms parms = new SerializeChunkParms(output, chunk, chunkOffset, chunkSize, previousLock, context, exceptions);
threadPool.QueueUserWorkItem(callback, parms);
previousLock = parms;
}
threadPool.Drain();
output.Flush();
if (exceptions.Count > 0)
{
throw new SerializationException("Exception thrown by worker thread", (Exception)exceptions[0]);
}
return;
}
