diff options
| author | Maria Matejka <mq@ucw.cz> | 2021-09-03 19:48:38 +0200 |
|---|---|---|
| committer | Maria Matejka <mq@ucw.cz> | 2021-10-13 19:00:36 +0200 |
| commit | e5a8eec6d720408139d0a209ef149848c5dcfbe3 (patch) | |
| tree | 96e0cb68f44cafd6b5e3f774f0900beb02441dd5 /lib | |
| parent | bea582cbb53e30dd32a5b6829c7443e0e5558d11 (diff) | |
Linpools may use pages instead of xmalloc
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/mempool.c | 21 | ||||
| -rw-r--r-- | lib/resource.h | 2 |
2 files changed, 19 insertions, 4 deletions
diff --git a/lib/mempool.c b/lib/mempool.c index 758882ce..8f300b81 100644 --- a/lib/mempool.c +++ b/lib/mempool.c @@ -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 */ - c = xmalloc(sizeof(struct lp_chunk) + m->chunk_size); + 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; @@ -258,7 +270,10 @@ lp_free(resource *r) for(d=m->first; d; d = c) { c = d->next; - xfree(d); + if (m->use_pages) + free_page(m->p, d); + else + xfree(d); } for(d=m->first_large; d; d = c) { diff --git a/lib/resource.h b/lib/resource.h index 597d6c17..26030aea 100644 --- a/lib/resource.h +++ b/lib/resource.h @@ -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 */ |