[Tarantool-patches] [PATCH v5 1/8] refactoring: wrap new operator calls in triggers
Ilya Kosarev
i.kosarev at tarantool.org
Fri Nov 22 05:46:49 MSK 2019
std operator new might throw so we need to wrap it in triggers to
provide non-throwing triggers. It also means alter_space_move_indexes
returns an error code now. It's usages are updated.
Part of #4247
---
src/box/alter.cc | 135 +++++++++++++++++++++++++++++++++--------------
1 file changed, 95 insertions(+), 40 deletions(-)
diff --git a/src/box/alter.cc b/src/box/alter.cc
index 4a3241a79..022c7dfa2 100644
--- a/src/box/alter.cc
+++ b/src/box/alter.cc
@@ -1814,7 +1814,7 @@ on_create_space_rollback(struct trigger *trigger, void *event)
* Create MoveIndex operation for a range of indexes in a space
* for range [begin, end)
*/
-void
+int
alter_space_move_indexes(struct alter_space *alter, uint32_t begin,
uint32_t end)
{
@@ -1839,9 +1839,17 @@ alter_space_move_indexes(struct alter_space *alter, uint32_t begin,
new_def = index_def_dup(old_def);
index_def_update_optionality(new_def,
min_field_count);
- (void) new ModifyIndex(alter, old_index, new_def);
+ try {
+ (void) new ModifyIndex(alter, old_index, new_def);
+ } catch (Exception *e) {
+ return -1;
+ }
} else {
- (void) new MoveIndex(alter, old_def->iid);
+ try {
+ (void) new MoveIndex(alter, old_def->iid);
+ } catch (Exception *e) {
+ return -1;
+ }
}
continue;
}
@@ -1856,11 +1864,20 @@ alter_space_move_indexes(struct alter_space *alter, uint32_t begin,
index_def_update_optionality(new_def, min_field_count);
auto guard = make_scoped_guard([=] { index_def_delete(new_def); });
if (!index_def_change_requires_rebuild(old_index, new_def))
- (void) new ModifyIndex(alter, old_index, new_def);
+ try {
+ (void) new ModifyIndex(alter, old_index, new_def);
+ } catch (Exception *e) {
+ return -1;
+ }
else
- (void) new RebuildIndex(alter, new_def, old_def);
+ try {
+ (void) new RebuildIndex(alter, new_def, old_def);
+ } catch (Exception *e) {
+ return -1;
+ }
guard.is_active = false;
}
+ return 0;
}
/**
@@ -2301,15 +2318,21 @@ on_replace_dd_space(struct trigger * /* trigger */, void *event)
old_space->index_count,
def->fields,
def->field_count);
- (void) new CheckSpaceFormat(alter);
- (void) new ModifySpace(alter, def);
- (void) new RebuildCkConstraints(alter);
+ try {
+ (void) new CheckSpaceFormat(alter);
+ (void) new ModifySpace(alter, def);
+ (void) new RebuildCkConstraints(alter);
+ } catch (Exception *e) {
+ return -1;
+ }
def_guard.is_active = false;
/* Create MoveIndex ops for all space indexes. */
- alter_space_move_indexes(alter, 0, old_space->index_id_max + 1);
- /* Remember to update schema_version. */
- (void) new UpdateSchemaVersion(alter);
+ if (alter_space_move_indexes(alter, 0,
+ old_space->index_id_max + 1) != 0)
+ return -1;
try {
+ /* Remember to update schema_version. */
+ (void) new UpdateSchemaVersion(alter);
alter_space_do(stmt, alter);
} catch (Exception *e) {
return -1;
@@ -2476,13 +2499,24 @@ on_replace_dd_index(struct trigger * /* trigger */, void *event)
"can not drop a referenced index");
return -1;
}
- alter_space_move_indexes(alter, 0, iid);
- (void) new DropIndex(alter, old_index);
+ if (alter_space_move_indexes(alter, 0, iid) != 0)
+ return -1;
+ try {
+ (void) new DropIndex(alter, old_index);
+ } catch (Exception *e) {
+ return -1;
+ }
}
/* Case 2: create an index, if it is simply created. */
if (old_index == NULL && new_tuple != NULL) {
- alter_space_move_indexes(alter, 0, iid);
- CreateIndex *create_index = new CreateIndex(alter);
+ if (alter_space_move_indexes(alter, 0, iid))
+ return -1;
+ CreateIndex *create_index;
+ try {
+ create_index = new CreateIndex(alter);
+ } catch (Exception *e) {
+ return -1;
+ }
create_index->new_index_def =
index_def_new_from_tuple(new_tuple, old_space);
if (create_index->new_index_def == NULL)
@@ -2536,10 +2570,16 @@ on_replace_dd_index(struct trigger * /* trigger */, void *event)
def->field_count);
index_def_update_optionality(index_def,
alter->new_min_field_count);
- alter_space_move_indexes(alter, 0, iid);
+ if (alter_space_move_indexes(alter, 0, iid))
+ return -1;
if (index_def_cmp(index_def, old_index->def) == 0) {
/* Index is not changed so just move it. */
- (void) new MoveIndex(alter, old_index->def->iid);
+ try {
+ (void) new MoveIndex(alter, old_index->def->iid);
+ } catch (Exception *e) {
+ return -1;
+ }
+
} else if (index_def_change_requires_rebuild(old_index,
index_def)) {
if (index_is_used_by_fk_constraint(&old_space->parent_fk_constraint,
@@ -2552,8 +2592,12 @@ on_replace_dd_index(struct trigger * /* trigger */, void *event)
/*
* Operation demands an index rebuild.
*/
- (void) new RebuildIndex(alter, index_def,
- old_index->def);
+ try {
+ (void) new RebuildIndex(alter, index_def,
+ old_index->def);
+ } catch (Exception *e) {
+ return -1;
+ }
index_def_guard.is_active = false;
} else {
/*
@@ -2561,8 +2605,12 @@ on_replace_dd_index(struct trigger * /* trigger */, void *event)
* but we still need to check that tuples stored
* in the space conform to the new format.
*/
- (void) new CheckSpaceFormat(alter);
- (void) new ModifyIndex(alter, old_index, index_def);
+ try {
+ (void) new CheckSpaceFormat(alter);
+ (void) new ModifyIndex(alter, old_index, index_def);
+ } catch (Exception *e) {
+ return -1;
+ }
index_def_guard.is_active = false;
}
}
@@ -2570,11 +2618,12 @@ on_replace_dd_index(struct trigger * /* trigger */, void *event)
* Create MoveIndex ops for the remaining indexes in the
* old space.
*/
- alter_space_move_indexes(alter, iid + 1, old_space->index_id_max + 1);
- (void) new MoveCkConstraints(alter);
- /* Add an op to update schema_version on commit. */
- (void) new UpdateSchemaVersion(alter);
+ if (alter_space_move_indexes(alter, iid + 1, old_space->index_id_max + 1) != 0)
+ return -1;
try {
+ (void) new MoveCkConstraints(alter);
+ /* Add an op to update schema_version on commit. */
+ (void) new UpdateSchemaVersion(alter);
alter_space_do(stmt, alter);
} catch (Exception *e) {
return -1;
@@ -2654,16 +2703,16 @@ on_replace_dd_truncate(struct trigger * /* trigger */, void *event)
stmt->row->group_id = GROUP_LOCAL;
}
- /*
- * Recreate all indexes of the truncated space.
- */
- for (uint32_t i = 0; i < old_space->index_count; i++) {
- struct index *old_index = old_space->index[i];
- (void) new TruncateIndex(alter, old_index->def->iid);
- }
-
- (void) new MoveCkConstraints(alter);
try {
+ /*
+ * Recreate all indexes of the truncated space.
+ */
+ for (uint32_t i = 0; i < old_space->index_count; i++) {
+ struct index *old_index = old_space->index[i];
+ (void) new TruncateIndex(alter, old_index->def->iid);
+ }
+
+ (void) new MoveCkConstraints(alter);
alter_space_do(stmt, alter);
} catch (Exception *e) {
return -1;
@@ -5562,13 +5611,19 @@ on_replace_dd_func_index(struct trigger *trigger, void *event)
if (alter == NULL)
return -1;
auto scoped_guard = make_scoped_guard([=] {alter_space_delete(alter);});
- alter_space_move_indexes(alter, 0, index->def->iid);
- (void) new RebuildFuncIndex(alter, index->def, func);
- alter_space_move_indexes(alter, index->def->iid + 1,
- space->index_id_max + 1);
- (void) new MoveCkConstraints(alter);
- (void) new UpdateSchemaVersion(alter);
+ if (alter_space_move_indexes(alter, 0, index->def->iid) != 0)
+ return -1;
try {
+ (void) new RebuildFuncIndex(alter, index->def, func);
+ } catch (Exception *e) {
+ return -1;
+ }
+ if (alter_space_move_indexes(alter, index->def->iid + 1,
+ space->index_id_max + 1) != 0)
+ return -1;
+ try {
+ (void) new MoveCkConstraints(alter);
+ (void) new UpdateSchemaVersion(alter);
alter_space_do(stmt, alter);
} catch (Exception *e) {
return -1;
--
2.17.1
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