[tarantool-patches] [PATCH v2 1/7] sql: refactor sql_alloc_src_list to set diag
Kirill Shcherbatov
kshcherbatov at tarantool.org
Wed Feb 27 14:13:12 MSK 2019
Refactored sql_alloc_src_list routine to use diag_set in case of
memory allocation error. This will ensure that the
sqlSrcListAppend function throws an error using diag in
subsequent patches.
Needed for #3931
---
src/box/sql/build.c | 30 +++++++++++++++++-------------
src/box/sql/sqlInt.h | 12 ++++++++++--
2 files changed, 27 insertions(+), 15 deletions(-)
diff --git a/src/box/sql/build.c b/src/box/sql/build.c
index e9851d9a1..3a65eb5a1 100644
--- a/src/box/sql/build.c
+++ b/src/box/sql/build.c
@@ -1397,8 +1397,11 @@ vdbe_emit_stat_space_clear(struct Parse *parse, const char *stat_table_name,
struct sql *db = parse->db;
assert(!db->mallocFailed);
struct SrcList *src_list = sql_alloc_src_list(db);
- if (src_list != NULL)
- src_list->a[0].zName = sqlDbStrDup(db, stat_table_name);
+ if (src_list == NULL) {
+ sql_parser_error(parse);
+ return;
+ }
+ src_list->a[0].zName = sqlDbStrDup(db, stat_table_name);
struct Expr *where = NULL;
if (idx_name != NULL) {
struct Expr *expr = sql_id_eq_str_expr(parse, "idx", idx_name);
@@ -2666,19 +2669,20 @@ sqlSrcListEnlarge(sql * db, /* Database connection to notify of OOM errors */
return pSrc;
}
-SrcList *
-sql_alloc_src_list(sql *db)
+struct SrcList *
+sql_alloc_src_list(struct sql *db)
{
- SrcList *pList;
-
- pList = sqlDbMallocRawNN(db, sizeof(SrcList));
- if (pList == 0)
+ struct SrcList *src_list = sqlDbMallocRawNN(db, sizeof(SrcList));
+ if (src_list == NULL) {
+ diag_set(OutOfMemory, sizeof(SrcList), "sqlDbMallocRawNN",
+ "src_list");
return NULL;
- pList->nAlloc = 1;
- pList->nSrc = 1;
- memset(&pList->a[0], 0, sizeof(pList->a[0]));
- pList->a[0].iCursor = -1;
- return pList;
+ }
+ src_list->nAlloc = 1;
+ src_list->nSrc = 1;
+ memset(&src_list->a[0], 0, sizeof(src_list->a[0]));
+ src_list->a[0].iCursor = -1;
+ return src_list;
}
/*
diff --git a/src/box/sql/sqlInt.h b/src/box/sql/sqlInt.h
index dbfdbc6f5..ce29dc0b1 100644
--- a/src/box/sql/sqlInt.h
+++ b/src/box/sql/sqlInt.h
@@ -3427,8 +3427,16 @@ void *sqlArrayAllocate(sql *, void *, int, int *, int *);
IdList *sqlIdListAppend(sql *, IdList *, Token *);
int sqlIdListIndex(IdList *, const char *);
SrcList *sqlSrcListEnlarge(sql *, SrcList *, int, int);
-SrcList *
-sql_alloc_src_list(sql *db);
+
+/**
+ * Allocate a new empty SrcList object.
+ * @param db The database connection.
+ * @retval not NULL list pointer on success.
+ * @retval NULL otherwise.
+ */
+struct SrcList *
+sql_alloc_src_list(struct sql *db);
+
SrcList *sqlSrcListAppend(sql *, SrcList *, Token *);
SrcList *sqlSrcListAppendFromTerm(Parse *, SrcList *, Token *,
Token *, Select *, Expr *, IdList *);
--
2.20.1
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