Avoid unnecessary calls to sqlite3BtreeEnterAll() and sqlite3BtreeLeaveAll()

when no btree is using shared-cache. FossilOrigin-Name: cfb3158204628eb2fd170090a7f212df0e4ce6c9
2017-01-02 18:19:29 +00:00
parent 197231b160
commit 38eef32172
5 changed files with 25 additions and 14 deletions
@@ -1296,6 +1296,7 @@ struct sqlite3 {
  u8 vtabOnConflict;            /* Value to return for s3_vtab_on_conflict() */
  u8 isTransactionSavepoint;    /* True if the outermost savepoint is a TS */
  u8 mTrace;                    /* zero or more SQLITE_TRACE flags */
+  u8 skipBtreeMutex;            /* True if no shared-cache backends */
  int nextPagesize;             /* Pagesize after VACUUM if >0 */
  u32 magic;                    /* Magic number for detect library misuse */
  int nChange;                  /* Value returned by sqlite3_changes() */