faux/lub/partition/partition_findcreate_local_heap.c

/*
 * partition_findcreate_local_heap.c
 */
#include "private.h"

/*-------------------------------------------------------- */
lub_heap_t *lub_partition_findcreate_local_heap(lub_partition_t * this)
{
	/* see whether one already exists */
	lub_heap_t *local_heap = 0;
	if (this->m_spec.use_local_heap) {
		local_heap = lub_partition__get_local_heap(this);
		if (!local_heap) {
			size_t required;

			/* work out how big the local heap will be... */
			required =
			    lub_heap_overhead_size(this->m_spec.
						   max_local_block_size,
						   this->m_spec.
						   num_local_max_blocks);
			/* 
			 * create a local heap for the current thread which 
			 * just contains a cache
			 */
			(void)lub_partition_global_realloc(this,
							   (char **)&local_heap,
							   required,
							   LUB_HEAP_ALIGN_NATIVE);
			if (local_heap) {
				/* initialise the heap object */
				lub_heap_create(local_heap, required);
				lub_heap_cache_init(local_heap,
						    this->m_spec.
						    max_local_block_size,
						    this->m_spec.
						    num_local_max_blocks);

				/* store this in the thread specific storage */
				lub_partition__set_local_heap(this, local_heap);
			}
		}
	}
	return local_heap;
}

/*-------------------------------------------------------- */