public BlockStream(int foreachCount, uint uniqueBlockStreamId, Allocator allocator = Allocator.TempJob)
{
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (foreachCount <= 0)
{
throw new ArgumentException("foreachCount must be > 0", "foreachCount");
}
if (allocator <= Allocator.None)
{
throw new ArgumentException("Allocator must be Temp, TempJob or Persistent", "allocator");
}
#endif
m_Block = null;
m_AllocatorLabel = allocator;
m_UniqueBlockStreamId = uniqueBlockStreamId;
int blockCount = JobsUtility.MaxJobThreadCount;
int allocationSize = sizeof(BlockStreamData) + sizeof(Block *) * blockCount + sizeof(Range) * foreachCount;
byte *buffer = (byte *)UnsafeUtility.Malloc(allocationSize, 16, m_AllocatorLabel);
UnsafeUtility.MemClear(buffer, allocationSize);
m_Block = (BlockStreamData *)buffer;
m_Block->Allocator = m_AllocatorLabel;
m_Block->BlockCount = blockCount;
m_Block->Blocks = (Block **)(buffer + sizeof(BlockStreamData));
m_Block->Ranges = (Range *)((byte *)m_Block->Blocks + sizeof(Block *) * blockCount);
m_Block->RangeCount = foreachCount;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
DisposeSentinel.Create(out m_Safety, out m_DisposeSentinel, 0, m_AllocatorLabel);
#endif
}
public JobHandle Dispose(JobHandle inputDeps)
{
// [DeallocateOnJobCompletion] is not supported, but we want the deallocation to happen in a thread.
// DisposeSentinel needs to be cleared on main thread.
// AtomicSafetyHandle can be destroyed after the job was scheduled (Job scheduling will check that no jobs are writing to the container)
#if ENABLE_UNITY_COLLECTIONS_CHECKS
DisposeSentinel.Clear(ref m_DisposeSentinel);
#endif
var jobHandle = new DisposeJob {
BlockStream = this
}.Schedule(inputDeps);
m_Block = null;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
AtomicSafetyHandle.Release(m_Safety);
#endif
return(jobHandle);
}
internal Writer(ref NativeStream stream)
{
m_BlockStream = stream.m_Block;
m_ForeachIndex = int.MinValue;
m_ElementCount = -1;
m_CurrentBlock = null;
m_CurrentBlockEnd = null;
m_CurrentPtr = null;
m_FirstBlock = null;
m_NumberOfBlocks = 0;
m_FirstOffset = 0;
m_ThreadIndex = 0;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
m_Safety = stream.m_Safety;
m_Length = int.MaxValue;
m_MinIndex = int.MinValue;
m_MaxIndex = int.MinValue;
m_PassByRefCheck = null;
#endif
}
private void _Dispose()
{
if (m_Block == null)
{
return;
}
for (int i = 0; i != m_Block->BlockCount; i++)
{
Block *block = m_Block->Blocks[i];
while (block != null)
{
Block *next = block->Next;
UnsafeUtility.Free(block, m_AllocatorLabel);
block = next;
}
}
UnsafeUtility.Free(m_Block, m_AllocatorLabel);
m_Block = null;
}
void Deallocate()
{
if (m_Block == null)
{
return;
}
for (int i = 0; i != m_Block->BlockCount; i++)
{
Block *block = m_Block->Blocks[i];
while (block != null)
{
Block *next = block->Next;
UnsafeUtility.Free(block, m_AllocatorLabel);
block = next;
}
}
UnsafeUtility.Free(m_Block->Ranges, m_AllocatorLabel);
UnsafeUtility.Free(m_Block, m_AllocatorLabel);
m_Block = null;
m_AllocatorLabel = Allocator.Invalid;
}