Refactored memtx_tree code so that memtx_tree.h contained only
the signature of the tree object constructor memtx_tree_index_new,
while all implementation details were in memtx_tree.c.
This will further allow to template the implementation details.
Needed for #3961
---
src/box/memtx_tree.c | 62 ++++++++++++++++++++++++++++++++++++++--
src/box/memtx_tree.h | 68 ++------------------------------------------
2 files changed, 63 insertions(+), 67 deletions(-)
diff --git a/src/box/memtx_tree.c b/src/box/memtx_tree.c
index f851fb869..2e8adb682 100644
--- a/src/box/memtx_tree.c
+++ b/src/box/memtx_tree.c
@@ -39,6 +39,64 @@
#include <third_party/qsort_arg.h>
#include <small/mempool.h>
+/**
+ * Struct that is used as a key in BPS tree definition.
+ */
+struct memtx_tree_key_data {
+ /** Sequence of msgpacked search fields. */
+ const char *key;
+ /** Number of msgpacked search fields. */
+ uint32_t part_count;
+};
+
+/**
+ * BPS tree element vs key comparator.
+ * Defined in header in order to allow compiler to inline it.
+ * @param tuple - tuple to compare.
+ * @param key_data - key to compare with.
+ * @param def - key definition.
+ * @retval 0 if tuple == key in terms of def.
+ * @retval <0 if tuple < key in terms of def.
+ * @retval >0 if tuple > key in terms of def.
+ */
+static int
+memtx_tree_compare_key(const struct tuple *tuple,
+ const struct memtx_tree_key_data *key_data,
+ struct key_def *def)
+{
+ return tuple_compare_with_key(tuple, key_data->key,
+ key_data->part_count, def);
+}
+
+#define BPS_TREE_NAME memtx_tree
+#define BPS_TREE_BLOCK_SIZE (512)
+#define BPS_TREE_EXTENT_SIZE MEMTX_EXTENT_SIZE
+#define BPS_TREE_COMPARE(a, b, arg) tuple_compare(a, b, arg)
+#define BPS_TREE_COMPARE_KEY(a, b, arg) memtx_tree_compare_key(a, b, arg)
+#define bps_tree_elem_t struct tuple *
+#define bps_tree_key_t struct memtx_tree_key_data *
+#define bps_tree_arg_t struct key_def *
+
+#include "salad/bps_tree.h"
+
+#undef BPS_TREE_NAME
+#undef BPS_TREE_BLOCK_SIZE
+#undef BPS_TREE_EXTENT_SIZE
+#undef BPS_TREE_COMPARE
+#undef BPS_TREE_COMPARE_KEY
+#undef bps_tree_elem_t
+#undef bps_tree_key_t
+#undef bps_tree_arg_t
+
+struct memtx_tree_index {
+ struct index base;
+ struct memtx_tree tree;
+ struct tuple **build_array;
+ size_t build_array_size, build_array_alloc_size;
+ struct memtx_gc_task gc_task;
+ struct memtx_tree_iterator gc_iterator;
+};
+
/* {{{ Utilities. *************************************************/
static int
@@ -683,7 +741,7 @@ static const struct index_vtab memtx_tree_index_vtab = {
/* .end_build = */ memtx_tree_index_end_build,
};
-struct memtx_tree_index *
+struct index *
memtx_tree_index_new(struct memtx_engine *memtx, struct index_def *def)
{
if (!mempool_is_initialized(&memtx->tree_iterator_pool)) {
@@ -707,5 +765,5 @@ memtx_tree_index_new(struct memtx_engine *memtx, struct
index_def *def)
struct key_def *cmp_def = memtx_tree_index_cmp_def(index);
memtx_tree_create(&index->tree, cmp_def, memtx_index_extent_alloc,
memtx_index_extent_free, memtx);
- return index;
+ return &index->base;
}
diff --git a/src/box/memtx_tree.h b/src/box/memtx_tree.h
index bbc8b2419..edeaebab9 100644
--- a/src/box/memtx_tree.h
+++ b/src/box/memtx_tree.h
@@ -30,78 +30,16 @@
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
-#include <stddef.h>
-#include <stdint.h>
-
-#include "index.h"
-#include "memtx_engine.h"
#if defined(__cplusplus)
extern "C" {
#endif /* defined(__cplusplus) */
+struct index;
+struct index_def;
struct memtx_engine;
-/**
- * Struct that is used as a key in BPS tree definition.
- */
-struct memtx_tree_key_data
-{
- /** Sequence of msgpacked search fields */
- const char *key;
- /** Number of msgpacked search fields */
- uint32_t part_count;
-};
-
-/**
- * BPS tree element vs key comparator.
- * Defined in header in order to allow compiler to inline it.
- * @param tuple - tuple to compare.
- * @param key_data - key to compare with.
- * @param def - key definition.
- * @retval 0 if tuple == key in terms of def.
- * @retval <0 if tuple < key in terms of def.
- * @retval >0 if tuple > key in terms of def.
- */
-static inline int
-memtx_tree_compare_key(const struct tuple *tuple,
- const struct memtx_tree_key_data *key_data,
- struct key_def *def)
-{
- return tuple_compare_with_key(tuple, key_data->key,
- key_data->part_count, def);
-}
-
-#define BPS_TREE_NAME memtx_tree
-#define BPS_TREE_BLOCK_SIZE (512)
-#define BPS_TREE_EXTENT_SIZE MEMTX_EXTENT_SIZE
-#define BPS_TREE_COMPARE(a, b, arg) tuple_compare(a, b, arg)
-#define BPS_TREE_COMPARE_KEY(a, b, arg) memtx_tree_compare_key(a, b, arg)
-#define bps_tree_elem_t struct tuple *
-#define bps_tree_key_t struct memtx_tree_key_data *
-#define bps_tree_arg_t struct key_def *
-
-#include "salad/bps_tree.h"
-
-#undef BPS_TREE_NAME
-#undef BPS_TREE_BLOCK_SIZE
-#undef BPS_TREE_EXTENT_SIZE
-#undef BPS_TREE_COMPARE
-#undef BPS_TREE_COMPARE_KEY
-#undef bps_tree_elem_t
-#undef bps_tree_key_t
-#undef bps_tree_arg_t
-
-struct memtx_tree_index {
- struct index base;
- struct memtx_tree tree;
- struct tuple **build_array;
- size_t build_array_size, build_array_alloc_size;
- struct memtx_gc_task gc_task;
- struct memtx_tree_iterator gc_iterator;
-};
-
-struct memtx_tree_index *
+struct index *
memtx_tree_index_new(struct memtx_engine *memtx, struct index_def *def);
#if defined(__cplusplus)
--
2.20.1
