// for GS_ARENA, count must be 4, 8, 16 or 20
void *__gs_mempool_alloc(unsigned int arena_id, unsigned int count)
{
gs_arena_t *arena = &gs_mempool[arena_id];
gs_memblock_t *memblk = arena->lastblock;
if (memblk == NULL) {
#ifdef TARG_IA64
// On IA64, the sizeof(gspin_t) is 32
GS_ASSERT(sizeof(gspin_t) == 32, "struct gspin size has changed.");
#else
GS_ASSERT(sizeof(gspin_t) == 20, "struct gspin size has changed.");
#endif
memblk = gs_new_memblock(0);
arena->firstblock = arena->lastblock = memblk;
arena->current_index = 0;
}
else if ((arena->current_index + count - 1) >=
((memblk->block_id + 1) << GS_BLOCK_IDX_SHIFT_AMT)) {
memblk = gs_new_memblock(memblk->block_id + 1);
arena->lastblock->next = memblk;
arena->lastblock = memblk;
if (count > 1) // this is needed to gaurantee locations to be contiguous
arena->current_index = memblk->block_id * GS_MEMBLOCK_SIZE;
}
gs_void_t *p = &memblk->mem[arena->current_index & GS_OFST_IN_BLK_MASK];
arena->current_index += count;
return p;
}
// for GS_ARENA, count must be 4, 8, 16 or 20
void *__gs_mempool_alloc(unsigned int arena_id, unsigned int count)
{
gs_arena_t *arena = &gs_mempool[arena_id];
gs_memblock_t *memblk = arena->lastblock;
if (memblk == NULL) {
memblk = gs_new_memblock(0);
arena->firstblock = arena->lastblock = memblk;
arena->current_index = 0;
}
else if ((arena->current_index + count - 1) >=
((memblk->block_id + 1) << GS_BLOCK_IDX_SHIFT_AMT)) {
memblk = gs_new_memblock(memblk->block_id + 1);
arena->lastblock->next = memblk;
arena->lastblock = memblk;
if (count > 1) // this is needed to gaurantee locations to be contiguous
arena->current_index = memblk->block_id * GS_MEMBLOCK_SIZE;
}
gs_void_t *p = &memblk->mem[arena->current_index & GS_OFST_IN_BLK_MASK];
arena->current_index += count;
return p;
}
