From 15740faf9fe9fe4be08965098bbf2947e096aeeb Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 14 Aug 2019 22:50:43 +0800
Subject: +Unity Runtime code

---
 Runtime/Allocator/TLSAllocator.cpp | 198 +++++++++++++++++++++++++++++++++++++
 1 file changed, 198 insertions(+)
 create mode 100644 Runtime/Allocator/TLSAllocator.cpp

(limited to 'Runtime/Allocator/TLSAllocator.cpp')

diff --git a/Runtime/Allocator/TLSAllocator.cpp b/Runtime/Allocator/TLSAllocator.cpp
new file mode 100644
index 0000000..00bf88b
--- /dev/null
+++ b/Runtime/Allocator/TLSAllocator.cpp
@@ -0,0 +1,198 @@
+#include "UnityPrefix.h"
+#include "TLSAllocator.h"
+#include "Runtime/Threads/Thread.h"
+#include "Runtime/Allocator/StackAllocator.h"
+
+#if ENABLE_MEMORY_MANAGER
+
+template <class UnderlyingAllocator>
+int TLSAllocator<UnderlyingAllocator>::s_NumberOfInstances = 0;
+
+template <class UnderlyingAllocator>
+UNITY_TLS_VALUE(UnderlyingAllocator*) TLSAllocator<UnderlyingAllocator>::m_UniqueThreadAllocator;
+
+template <class UnderlyingAllocator>
+TLSAllocator<UnderlyingAllocator>::TLSAllocator(const char* name)
+: BaseAllocator(name)
+{
+	if(s_NumberOfInstances != 0)
+		ErrorString("Only one instance of the TLS allocator is allowed because of TLS implementation");
+	s_NumberOfInstances++;
+	memset (m_ThreadTempAllocators, 0, sizeof(m_ThreadTempAllocators));
+}
+
+template <class UnderlyingAllocator>
+TLSAllocator<UnderlyingAllocator>::~TLSAllocator()
+{
+	s_NumberOfInstances--;
+}
+
+template <class UnderlyingAllocator>
+void TLSAllocator<UnderlyingAllocator>::ThreadInitialize(BaseAllocator *allocator)
+{
+	m_UniqueThreadAllocator = (UnderlyingAllocator*)allocator;
+
+	for(int i = 0; i < kMaxThreadTempAllocators; i++)
+	{
+		if(m_ThreadTempAllocators[i] == NULL)
+		{
+			m_ThreadTempAllocators[i] = (UnderlyingAllocator*) allocator;
+			break;
+		}
+	}
+
+}
+
+template <class UnderlyingAllocator>
+void TLSAllocator<UnderlyingAllocator>::ThreadCleanup()
+{
+	UnderlyingAllocator* allocator = m_UniqueThreadAllocator;
+	m_UniqueThreadAllocator = NULL;
+
+	for(int i = 0; i < kMaxThreadTempAllocators; i++)
+	{
+		if(m_ThreadTempAllocators[i] == allocator)
+		{
+			m_ThreadTempAllocators[i] = NULL;
+			break;
+		}
+	}
+	UNITY_DELETE(allocator, kMemManager);
+}
+
+template <class UnderlyingAllocator>
+void TLSAllocator<UnderlyingAllocator>::FrameMaintenance(bool cleanup)
+{
+	Assert(m_UniqueThreadAllocator->GetAllocatedMemorySize() == 0);
+}
+
+template <class UnderlyingAllocator>
+bool TLSAllocator<UnderlyingAllocator>::IsAssigned() const
+{
+	return m_UniqueThreadAllocator != NULL;
+}
+
+template <class UnderlyingAllocator>
+UnderlyingAllocator* TLSAllocator<UnderlyingAllocator>::GetCurrentAllocator()
+{
+	return m_UniqueThreadAllocator;
+}
+
+
+template <class UnderlyingAllocator>
+void* TLSAllocator<UnderlyingAllocator>::Allocate( size_t size, int align )
+{
+	UnderlyingAllocator* alloc = GetCurrentAllocator();
+	return alloc ? alloc->UnderlyingAllocator::Allocate(size, align) : NULL;
+}
+
+template <class UnderlyingAllocator>
+void* TLSAllocator<UnderlyingAllocator>::Reallocate( void* p, size_t size, int align )
+{ 
+	UnderlyingAllocator* alloc = GetCurrentAllocator();
+	if(!alloc)
+		return NULL;
+	if(alloc->UnderlyingAllocator::Contains(p))
+		return alloc->UnderlyingAllocator::Reallocate(p, size, align);
+	
+	return NULL;
+}
+
+template <class UnderlyingAllocator>
+void TLSAllocator<UnderlyingAllocator>::Deallocate( void* p )
+{
+	UnderlyingAllocator* alloc = GetCurrentAllocator();
+	DebugAssert(alloc);
+	DebugAssert(alloc->UnderlyingAllocator::Contains(p));
+	return alloc->UnderlyingAllocator::Deallocate(p);
+}
+
+template <class UnderlyingAllocator>
+bool TLSAllocator<UnderlyingAllocator>::TryDeallocate( void* p )
+{
+	UnderlyingAllocator* alloc = GetCurrentAllocator();
+	if(!alloc)
+		return false;
+
+	if(!alloc->UnderlyingAllocator::Contains(p))
+		return false;
+
+	alloc->UnderlyingAllocator::Deallocate(p);
+	return true;
+}
+
+
+template <class UnderlyingAllocator>
+bool TLSAllocator<UnderlyingAllocator>::Contains( const void* p )
+{
+	UnderlyingAllocator* alloc = GetCurrentAllocator();
+	if(alloc && alloc->UnderlyingAllocator::Contains(p))
+		return true;
+	return false;
+}
+
+template <class UnderlyingAllocator>
+size_t TLSAllocator<UnderlyingAllocator>::GetAllocatedMemorySize( ) const
+{
+	size_t allocated = 0;
+	for(int i = 0; i < kMaxThreadTempAllocators; i++)
+	{
+		if(m_ThreadTempAllocators[i] != NULL)
+			allocated += m_ThreadTempAllocators[i]->UnderlyingAllocator::GetAllocatedMemorySize();
+	}
+	return allocated;
+}
+
+template <class UnderlyingAllocator>
+size_t TLSAllocator<UnderlyingAllocator>::GetAllocatorSizeTotalUsed() const
+{
+	size_t total = 0;
+	for(int i = 0; i < kMaxThreadTempAllocators; i++)
+	{
+		if(m_ThreadTempAllocators[i] != NULL)
+			total += m_ThreadTempAllocators[i]->UnderlyingAllocator::GetAllocatorSizeTotalUsed();
+	}
+	return total;
+}
+
+template <class UnderlyingAllocator>
+size_t TLSAllocator<UnderlyingAllocator>::GetReservedSizeTotal() const
+{
+	size_t total = 0;
+	for(int i = 0; i < kMaxThreadTempAllocators; i++)
+	{
+		if(m_ThreadTempAllocators[i] != NULL)
+			total += m_ThreadTempAllocators[i]->UnderlyingAllocator::GetReservedSizeTotal();
+	}
+	return total;
+}
+
+template <class UnderlyingAllocator>
+size_t TLSAllocator<UnderlyingAllocator>::GetPtrSize( const void* ptr ) const
+{
+	// all allocators have the same allocation header
+	return m_ThreadTempAllocators[0]->UnderlyingAllocator::GetPtrSize(ptr);
+}
+
+template <class UnderlyingAllocator>
+ProfilerAllocationHeader* TLSAllocator<UnderlyingAllocator>::GetProfilerHeader( const void* ptr ) const
+{
+	return m_ThreadTempAllocators[0]->UnderlyingAllocator::GetProfilerHeader(ptr);
+}
+
+
+template <class UnderlyingAllocator>
+bool TLSAllocator<UnderlyingAllocator>::CheckIntegrity()
+{
+	bool succes = true;
+	for(int i = 0; i < kMaxThreadTempAllocators; i++)
+	{
+		if(m_ThreadTempAllocators[i] != NULL)
+			succes &= m_ThreadTempAllocators[i]->UnderlyingAllocator::CheckIntegrity();
+	}
+	return succes;
+}
+
+template class TLSAllocator< StackAllocator >;
+
+#endif // #if ENABLE_MEMORY_MANAGER
-- 
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