Linpools may use pages instead of xmalloc (e5a8eec6) · Commits · 戴 / Bird

lib/mempool.c

+18 −3

Original line number	Diff line number	Diff line
		@@ -37,9 +37,10 @@ const int lp_chunk_size = sizeof(struct lp_chunk);
		struct linpool {
		resource r;
		byte ptr, end;
		pool *p;
		struct lp_chunk first, current; /* Normal (reusable) chunks */
		struct lp_chunk first_large; / Large chunks */
		uint chunk_size, threshold, total, total_large;
		uint chunk_size, threshold, total:31, use_pages:1, total_large;
		};

		static void lp_free(resource *);
		@@ -69,6 +70,13 @@ linpool
		lp_new(pool p, uint blk)
		{
		linpool *m = ralloc(p, &lp_class);
		m->p = p;
		if (!blk)
		{
		m->use_pages = 1;
		blk = page_size - lp_chunk_size;
		}

		m->chunk_size = blk;
		m->threshold = 3*blk/4;
		return m;
		@@ -121,7 +129,11 @@ lp_alloc(linpool *m, uint size)
		else
		{
		/* Need to allocate a new chunk */
		if (m->use_pages)
		c = alloc_page(m->p);
		else
		c = xmalloc(sizeof(struct lp_chunk) + m->chunk_size);

		m->total += m->chunk_size;
		c->next = NULL;
		c->size = m->chunk_size;
		@@ -258,6 +270,9 @@ lp_free(resource *r)
		for(d=m->first; d; d = c)
		{
		c = d->next;
		if (m->use_pages)
		free_page(m->p, d);
		else
		xfree(d);
		}
		for(d=m->first_large; d; d = c)

+1 −1

Original line number	Diff line number	Diff line
		@@ -76,7 +76,7 @@ void lp_restore(linpool m, lp_state p); /* Restore state */
		extern const int lp_chunk_size;
		#define LP_GAS 1024
		#define LP_GOOD_SIZE(x) (((x + LP_GAS - 1) & (~(LP_GAS - 1))) - lp_chunk_size)
		#define lp_new_default(p) lp_new(p, LP_GOOD_SIZE(LP_GAS*4))
		#define lp_new_default(p) lp_new(p, 0)

		/* Slabs */