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Merge pull request #2348 from ben-clayton/thread-local

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Simplify PoolAlloc by using `thread_local`
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John Kessenich 2020-07-22 11:47:06 +07:00 • committed by GitHub
commit 11fa4d0d56
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4 changed files with 16 additions and 150 deletions
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2
glslang/Include/InitializeGlobals.h
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@ -37,7 +37,7 @@
namespace glslang {
bool InitializePoolIndex();
inline bool InitializePoolIndex() { return true; } // DEPRECATED: No need to call
} // end namespace glslang

28
glslang/MachineIndependent/PoolAlloc.cpp
View file

@ -35,34 +35,28 @@
#include "../Include/Common.h"
#include "../Include/PoolAlloc.h"
#include "../Include/InitializeGlobals.h"
#include "../OSDependent/osinclude.h"
namespace glslang {
// Process-wide TLS index
OS_TLSIndex PoolIndex;
namespace {
thread_local TPoolAllocator* threadPoolAllocator = nullptr;
TPoolAllocator* GetDefaultThreadPoolAllocator()
{
thread_local TPoolAllocator defaultAllocator;
return &defaultAllocator;
}
} // anonymous namespace
// Return the thread-specific current pool.
TPoolAllocator& GetThreadPoolAllocator()
{
return *static_cast<TPoolAllocator*>(OS_GetTLSValue(PoolIndex));
return *(threadPoolAllocator ? threadPoolAllocator : GetDefaultThreadPoolAllocator());
}
// Set the thread-specific current pool.
void SetThreadPoolAllocator(TPoolAllocator* poolAllocator)
{
OS_SetTLSValue(PoolIndex, poolAllocator);
}
// Process-wide set up of the TLS pool storage.
bool InitializePoolIndex()
{
// Allocate a TLS index.
if ((PoolIndex = OS_AllocTLSIndex()) == OS_INVALID_TLS_INDEX)
return false;
return true;
threadPoolAllocator = poolAllocator;
}
//