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#include "UnityPrefix.h"
#include "BatchDeleteObjects.h"
#include "Runtime/Threads/Thread.h"
#include "Runtime/BaseClasses/BaseObject.h"
#include "Runtime/Mono/MonoIncludes.h"
#include "Runtime/Profiler/Profiler.h"
#include "Runtime/Threads/ThreadedStreamBuffer.h"
PROFILER_INFORMATION(gBatchDeleteObjects, "BatchDeleteObjects", kProfilerLoading)
PROFILER_INFORMATION(gBatchDeleteObjectsThread, "BatchDeleteObjectsThread", kProfilerLoading)
// @TODO: On Angrybots on OS X. We spent 4ms deleting objects in singlethreaded mode on the main thread and 1ms in multithreaded mode on the main thread.
#define MULTI_THREADED_DELETE 0
// Some classes do not support being deallocated on the main thread.
bool DoesClassRequireMainThreadDeallocation (int classID)
{
if (classID == ClassID(Shader) || classID == ClassID(PhysicMaterial) || classID == ClassID(Mesh) ||
classID == ClassID(Texture) || classID == ClassID(Texture2D) || classID == ClassID(Texture3D) || classID == ClassID(Cubemap) )
return true;
else
return false;
}
#if MULTI_THREADED_DELETE
#define kTerminateInstruction reinterpret_cast<Object*> (0x1)
struct BatchDeleteManager;
static BatchDeleteManager* gBatchDeleteManager = NULL;
static void* BatchDeleteStep2Threaded (void* userData);
struct BatchDeleteManager
{
Thread thread;
ThreadedStreamBuffer streamBuffer;
///////@TODO: Handle when we are out of ring buffer memory.
BatchDeleteManager ()
: streamBuffer (ThreadedStreamBuffer::kModeThreaded, 1024 * 256 * sizeof(Object*) )
{
}
};
void InitializeBatchDelete ()
{
gBatchDeleteManager = UNITY_NEW(BatchDeleteManager, kMemGarbageCollector);
gBatchDeleteManager->thread.SetName ("BatchDeleteObjects");
gBatchDeleteManager->thread.Run(BatchDeleteStep2Threaded, mono_domain_get());
}
void CleanupBatchDelete ()
{
// Send terminate instruction & wait for thread to complete
gBatchDeleteManager->streamBuffer.WriteValueType<Object*> (kTerminateInstruction);
gBatchDeleteManager->streamBuffer.WriteSubmitData ();
gBatchDeleteManager->thread.WaitForExit();
UNITY_DELETE(gBatchDeleteManager, kMemGarbageCollector);
}
BatchDelete CreateBatchDelete (size_t size)
{
size_t allocationSize = sizeof(Object*)*size;
void* objectArray = gBatchDeleteManager->streamBuffer.GetWriteDataPointer (allocationSize, sizeof(Object*));
BatchDelete batchInfo;
batchInfo.reservedObjectCount = size;
batchInfo.objectCount = 0;
batchInfo.objects = reinterpret_cast<Object**> (objectArray);
return batchInfo;
}
static void* BatchDeleteStep2Threaded (void* userData)
{
// Attach mono thread
MonoThread* thread = mono_thread_attach((MonoDomain*)userData);
ThreadedStreamBuffer& threadedStreamBuffer = gBatchDeleteManager->streamBuffer;
while (true)
{
Object* object = threadedStreamBuffer.ReadValueType<Object*> ();
// Terminate instruction. Stop the thread.
if (object == kTerminateInstruction)
return NULL;
// Delete the object
if (object != NULL)
delete_object_internal_step2 (object);
threadedStreamBuffer.ReadReleaseData ();
}
// Detach mono thread
mono_thread_detach(thread);
return NULL;
}
void SharkBeginRemoteProfiling ();
void SharkEndRemoteProfiling ();
/// Callbacks like ScriptableObject.OnDestroy etc must be called before invoking this function.
void BatchDeleteObjectInternal (const SInt32* unloadObjects, int size)
{
if (size == 0)
return;
PROFILER_AUTO(gBatchDeleteObjects, NULL)
BatchDelete batch = CreateBatchDelete (size);
int destroyObjectIndex = 0;
for (int i=0;i<size;i++)
{
Object* object = Object::IDToPointer(unloadObjects[i]);
batch.objects[destroyObjectIndex] = object;
}
batch.objectCount = destroyObjectIndex;
CommitBatchDelete(batch);
}
void CommitBatchDelete (BatchDelete& batchDelete)
{
Assert(batchDelete.reservedObjectCount >= batchDelete.objectCount);
LockObjectCreation();
for (int i=0;i<batchDelete.objectCount;i++)
{
Object* object = batchDelete.objects[i];
if (object == NULL)
continue;
delete_object_internal_step1 (object);
int classID = object->GetClassID();
if (DoesClassRequireMainThreadDeallocation (classID))
{
bool requiresThreadCleanup = object->MainThreadCleanup ();
/// DoesClassRequireMainThreadDeallocation does not agree with MainThreadCleanup
/// Fix DoesClassRequireMainThreadDeallocation or MainThreadCleanup for that class.
Assert(requiresThreadCleanup);
}
}
for (int i=batchDelete.objectCount;i<batchDelete.reservedObjectCount;i++)
batchDelete.objects[i] = NULL;
UnlockObjectCreation();
gBatchDeleteManager->streamBuffer.WriteSubmitData ();
}
#else
BatchDelete CreateBatchDelete (size_t size)
{
BatchDelete batch;
batch.objects = (Object**)UNITY_MALLOC(kMemGarbageCollector, sizeof(Object*)*size);
batch.reservedObjectCount = size;
batch.objectCount = 0;
return batch;
}
void CommitBatchDelete (BatchDelete& batchDelete)
{
PROFILER_AUTO(gBatchDeleteObjectsThread, NULL)
Assert(batchDelete.reservedObjectCount >= batchDelete.objectCount);
LockObjectCreation();
for (int i=0;i<batchDelete.objectCount;i++)
{
Object* object = batchDelete.objects[i];
if (object != NULL)
{
delete_object_internal_step1 (object);
delete_object_internal_step2 (object);
}
}
UnlockObjectCreation();
// Cleanup temp storage
UNITY_FREE(kMemGarbageCollector, batchDelete.objects);
}
void BatchDeleteObjectInternal (const SInt32* unloadObjects, int size)
{
PROFILER_AUTO(gBatchDeleteObjectsThread, NULL)
BatchDelete batchInfo = CreateBatchDelete (size);
batchInfo.objectCount = size;
for (int i=0;i<size;i++)
batchInfo.objects[i] = Object::IDToPointer(unloadObjects[i]);
CommitBatchDelete (batchInfo);
}
void InitializeBatchDelete ()
{
}
void CleanupBatchDelete ()
{
}
#endif
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