void* linearMemAlign(size_t size, size_t alignment)
{
// Enforce minimum alignment
if (alignment < 16)
alignment = 16;
// Convert alignment to shift amount
int shift;
for (shift = 4; shift < 32; shift ++)
{
if ((1U<<shift) == alignment)
break;
}
if (shift == 32) // Invalid alignment
return nullptr;
// Initialize the pool if it is not ready
if (!sLinearPool.Ready() && !linearInit())
return nullptr;
// Allocate the chunk
MemChunk chunk;
if (!sLinearPool.Allocate(chunk, size, shift))
return nullptr;
auto node = newNode(chunk);
if (!node)
{
sLinearPool.Deallocate(chunk);
return nullptr;
}
if (rbtree_insert(&sAddrMap, &node->node));
return chunk.addr;
}
void Set(MemPool &pool, void *lms, const std::vector<const Factor*> &context) {
lmstate = lms;
numWords = context.size();
lastWords = (const Factor**) pool.Allocate(
sizeof(const Factor*) * numWords);
for (size_t i = 0; i < numWords; ++i) {
lastWords[i] = context[i];
}
}
void Init(MemPool &pool, const Factor *factor) {
lmstate = NULL;
numWords = 1;
lastWords = (const Factor**) pool.Allocate(sizeof(const Factor*));
lastWords[0] = factor;
}
