[Tarantool-patches] [PATCH v1 1/5] sysview: make get() and create_iterator() methods virtual
imeevma at tarantool.org
imeevma at tarantool.org
Thu Oct 17 17:40:14 MSK 2019
This patch makes get() and create_iterator() virtual for sysview
index. This will allow us to create custom version of these
functions.
Needed for #4511
---
src/box/sysview.c | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/src/box/sysview.c b/src/box/sysview.c
index 00c320b..745cf09 100644
--- a/src/box/sysview.c
+++ b/src/box/sysview.c
@@ -49,6 +49,12 @@
#include "session.h"
typedef bool (*sysview_filter_f)(struct space *, struct tuple *);
+typedef int (*sysview_get_f)(struct index *index, const char *key,
+ uint32_t part_count, struct tuple **result);
+typedef struct iterator *(*sysview_create_iterator_f)(struct index *index,
+ enum iterator_type type,
+ const char *key,
+ uint32_t part_count);
struct sysview_engine {
struct engine base;
@@ -61,6 +67,8 @@ struct sysview_index {
uint32_t source_space_id;
uint32_t source_index_id;
sysview_filter_f filter;
+ sysview_get_f get;
+ sysview_create_iterator_f create_iterator;
};
struct sysview_iterator {
@@ -140,7 +148,7 @@ sysview_index_create_iterator(struct index *base, enum iterator_type type,
it->base.next = sysview_iterator_next;
it->base.free = sysview_iterator_free;
- it->source = index_create_iterator(pk, type, key, part_count);
+ it->source = index->create_iterator(pk, type, key, part_count);
if (it->source == NULL) {
mempool_free(&sysview->iterator_pool, it);
return NULL;
@@ -167,7 +175,7 @@ sysview_index_get(struct index *base, const char *key,
if (exact_key_validate(pk->def->key_def, key, part_count) != 0)
return -1;
struct tuple *tuple;
- if (index_get(pk, key, part_count, &tuple) != 0)
+ if (index->get(pk, key, part_count, &tuple) != 0)
return -1;
if (tuple == NULL || !index->filter(source, tuple))
*result = NULL;
@@ -424,42 +432,58 @@ sysview_space_create_index(struct space *space, struct index_def *def)
uint32_t source_space_id;
uint32_t source_index_id;
sysview_filter_f filter;
+ sysview_get_f get;
+ sysview_create_iterator_f create_iterator;
switch (def->space_id) {
case BOX_VSPACE_ID:
source_space_id = BOX_SPACE_ID;
source_index_id = def->iid;
filter = vspace_filter;
+ get = index_get;
+ create_iterator = index_create_iterator;
break;
case BOX_VINDEX_ID:
source_space_id = BOX_INDEX_ID;
source_index_id = def->iid;
filter = vspace_filter;
+ get = index_get;
+ create_iterator = index_create_iterator;
break;
case BOX_VUSER_ID:
source_space_id = BOX_USER_ID;
source_index_id = def->iid;
filter = vuser_filter;
+ get = index_get;
+ create_iterator = index_create_iterator;
break;
case BOX_VFUNC_ID:
source_space_id = BOX_FUNC_ID;
source_index_id = def->iid;
filter = vfunc_filter;
+ get = index_get;
+ create_iterator = index_create_iterator;
break;
case BOX_VPRIV_ID:
source_space_id = BOX_PRIV_ID;
source_index_id = def->iid;
filter = vpriv_filter;
+ get = index_get;
+ create_iterator = index_create_iterator;
break;
case BOX_VSEQUENCE_ID:
source_space_id = BOX_SEQUENCE_ID;
source_index_id = def->iid;
filter = vsequence_filter;
+ get = index_get;
+ create_iterator = index_create_iterator;
break;
case BOX_VCOLLATION_ID:
source_space_id = BOX_COLLATION_ID;
source_index_id = def->iid;
filter = vcollation_filter;
+ get = index_get;
+ create_iterator = index_create_iterator;
break;
default:
diag_set(ClientError, ER_MODIFY_INDEX,
@@ -484,6 +508,8 @@ sysview_space_create_index(struct space *space, struct index_def *def)
index->source_space_id = source_space_id;
index->source_index_id = source_index_id;
index->filter = filter;
+ index->get = get;
+ index->create_iterator = create_iterator;
return &index->base;
}
--
2.7.4
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