void* ArenaGrow(ArenaPool *pool, void *p, unsigned int size, unsigned int incr)
{
void *newp;
ARENA_ALLOCATE(newp, pool, size + incr);
if (newp)
memcpy(newp, p, size);
return newp;
}
void* RenderArena::allocate(size_t size)
{
m_totalSize += size;
#ifdef ADDRESS_SANITIZER
return ::malloc(size);
#elif !defined(NDEBUG)
// Use standard malloc so that memory debugging tools work.
ASSERT(this);
void* block = ::malloc(debugHeaderSize + size);
RenderArenaDebugHeader* header = static_cast<RenderArenaDebugHeader*>(block);
header->arena = this;
header->size = size;
header->signature = signature;
return static_cast<char*>(block) + debugHeaderSize;
#else
void* result = 0;
// Ensure we have correct alignment for pointers. Important for Tru64
size = ROUNDUP(size, sizeof(void*));
// Check recyclers first
if (size < gMaxRecycledSize) {
const int index = size >> 2;
result = m_recyclers[index];
if (result) {
// Need to move to the next object
void* next = *((void**)result);
m_recyclers[index] = next;
}
}
if (!result) {
// Allocate a new chunk from the arena
unsigned bytesAllocated = 0;
ARENA_ALLOCATE(result, &m_pool, size, &bytesAllocated);
m_totalAllocated += bytesAllocated;
}
return result;
#endif
}
void* RenderArena::allocate(size_t size)
{
#ifndef NDEBUG
// Use standard malloc so that memory debugging tools work.
assert(this);
void* block = ::malloc(sizeof(RenderArenaDebugHeader) + size);
RenderArenaDebugHeader* header = (RenderArenaDebugHeader*)block;
header->arena = this;
header->size = size;
header->signature = signature;
return header + 1;
#else
void* result = 0;
// Ensure we have correct alignment for pointers. Important for Tru64
size = ROUNDUP(size, sizeof(void*));
// Check recyclers first
if (size < gMaxRecycledSize) {
const int index = size >> 2;
result = m_recyclers[index];
if (result) {
// Need to move to the next object
void* next = *((void**)result);
m_recyclers[index] = next;
}
}
if (!result) {
// Allocate a new chunk from the arena
ARENA_ALLOCATE(result, &m_pool, size);
}
return result;
#endif
}