diff options
Diffstat (limited to 'src/common/mempool.c')
| -rw-r--r-- | src/common/mempool.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/common/mempool.c b/src/common/mempool.c index 06f23ad94f..ca196530db 100644 --- a/src/common/mempool.c +++ b/src/common/mempool.c @@ -210,6 +210,8 @@ mp_pool_get(mp_pool_t *pool) ASSERT(!chunk->prev); --pool->n_empty_chunks; + if (pool->n_empty_chunks < pool->min_empty_chunks) + pool->min_empty_chunks = pool->n_empty_chunks; } else { /* We have no used or empty chunks: allocate a new chunk. */ chunk = mp_chunk_new(pool); @@ -375,11 +377,20 @@ mp_pool_new(size_t item_size, size_t chunk_capacity) } /** If there are more than <b>n</b> empty chunks in <b>pool</b>, free the - * exces ones that have been empty for the longest. */ + * exces ones that have been empty for the longest. (If <b>n</b> is less + * than zero, free only empty chunks that were not used since the last + * call to mp_pool_clean(), leaving only -<b>n</b>.) */ void mp_pool_clean(mp_pool_t *pool, int n) { mp_chunk_t *chunk, **first_to_free; + if (n < 0) { + n = pool->min_empty_chunks + (-n); + if (n < pool->n_empty_chunks) + pool->min_empty_chunks = n; + } + ASSERT(n>=0); + first_to_free = &pool->empty_chunks; while (*first_to_free && n > 0) { first_to_free = &(*first_to_free)->next; |