chromium/third_party/glslang/src/glslang/MachineIndependent/PoolAlloc.cpp

//
// Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions
// are met:
//
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//    notice, this list of conditions and the following disclaimer.
//
//    Redistributions in binary form must reproduce the above
//    copyright notice, this list of conditions and the following
//    disclaimer in the documentation and/or other materials provided
//    with the distribution.
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//    Neither the name of 3Dlabs Inc. Ltd. nor the names of its
//    contributors may be used to endorse or promote products derived
//    from this software without specific prior written permission.
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// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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#include "../Include/Common.h"
#include "../Include/PoolAlloc.h"

// Mostly here for target that do not support threads such as WASI.
#ifdef DISABLE_THREAD_SUPPORT
#define THREAD_LOCAL 
#else
#define THREAD_LOCAL …
#endif

namespace glslang {

namespace {
THREAD_LOCAL TPoolAllocator* threadPoolAllocator = …;

TPoolAllocator* GetDefaultThreadPoolAllocator()
{ … }
} // anonymous namespace

// Return the thread-specific current pool.
TPoolAllocator& GetThreadPoolAllocator()
{ … }

// Set the thread-specific current pool.
void SetThreadPoolAllocator(TPoolAllocator* poolAllocator)
{ … }

//
// Implement the functionality of the TPoolAllocator class, which
// is documented in PoolAlloc.h.
//
TPoolAllocator::TPoolAllocator(int growthIncrement, int allocationAlignment) : … { … }

TPoolAllocator::~TPoolAllocator()
{ … }

//
// Check a single guard block for damage
//
#ifdef GUARD_BLOCKS
void TAllocation::checkGuardBlock(unsigned char* blockMem, unsigned char val, const char* locText) const
#else
void TAllocation::checkGuardBlock(unsigned char*, unsigned char, const char*) const
#endif
{ … }

void TPoolAllocator::push()
{ … }

//
// Do a mass-deallocation of all the individual allocations
// that have occurred since the last push(), or since the
// last pop(), or since the object's creation.
//
// The deallocated pages are saved for future allocations.
//
void TPoolAllocator::pop()
{ … }

//
// Do a mass-deallocation of all the individual allocations
// that have occurred.
//
void TPoolAllocator::popAll()
{ … }

void* TPoolAllocator::allocate(size_t numBytes)
{ … }

//
// Check all allocations in a list for damage by calling check on each.
//
void TAllocation::checkAllocList() const
{ … }

} // end namespace glslang