diff options
Diffstat (limited to 'src/vppinfra/pool.h')
| -rw-r--r-- | src/vppinfra/pool.h | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/src/vppinfra/pool.h b/src/vppinfra/pool.h index c74e76f0a4c..d7be8cb1f01 100644 --- a/src/vppinfra/pool.h +++ b/src/vppinfra/pool.h @@ -422,6 +422,20 @@ _pool_free (void *v) return 0; } +static_always_inline uword +pool_get_first_index (void *pool) +{ + pool_header_t *h = pool_header (pool); + return clib_bitmap_first_clear (h->free_bitmap); +} + +static_always_inline uword +pool_get_next_index (void *pool, uword last) +{ + pool_header_t *h = pool_header (pool); + return clib_bitmap_next_clear (h->free_bitmap, last + 1); +} + /** Free a pool. */ #define pool_free(p) (p) = _pool_free(p) @@ -509,17 +523,16 @@ do { \ @c pool_foreach which builds a vector of active indices, and a vec_foreach() (or plain for-loop) to walk the active index vector. */ + +#define pool_foreach2(VAR,POOL) \ + if (POOL) \ + for (VAR = POOL + pool_get_first_index (POOL); \ + VAR < vec_end (POOL); \ + VAR = POOL + pool_get_next_index (POOL, VAR - POOL)) + #define pool_foreach(VAR,POOL,BODY) \ -do { \ - uword _pool_foreach_lo, _pool_foreach_hi; \ - pool_foreach_region (_pool_foreach_lo, _pool_foreach_hi, (POOL), \ - ({ \ - for ((VAR) = (POOL) + _pool_foreach_lo; \ - (VAR) < (POOL) + _pool_foreach_hi; \ - (VAR)++) \ - do { BODY; } while (0); \ - })); \ -} while (0) + pool_foreach2(VAR,POOL) \ + { BODY; } /** Returns pointer to element at given index. @@ -553,13 +566,16 @@ do { \ _pool_var(rv); \ }) +#define pool_foreach_index2(i,v) \ + if (v) \ + for (i = pool_get_first_index (v); \ + i < vec_len (v); \ + i = pool_get_next_index (v, i)) \ + /** Iterate pool by index. */ #define pool_foreach_index(i,v,body) \ - for ((i) = 0; (i) < vec_len (v); (i)++) \ - { \ - if (! pool_is_free_index ((v), (i))) \ - do { body; } while (0); \ - } + pool_foreach_index2 (i,v) \ + { body; } /** * @brief Remove all elements from a pool in a safe way |