Introduce a new sqlite-locked-error

* src/sqlite.c (Fsqlite_execute): Use it.
(syms_of_sqlite): Introduce a new error for locked databases so
that we can catch that condition on higher levels.

diff --git a/src/sqlite.c b/src/sqlite.c
index d92dcf723c9367c7093afa208b441ce377043309..38e939cd84a517fb8adb1f08727b1767906f9e18 100644 (file)
--- a/src/sqlite.c
+++ b/src/sqlite.c
@@ -400,7 +400,9 @@ Value is the number of affected rows.  */)
 
  exit:
   if (errmsg != NULL)
-    xsignal1 (Qerror, build_string (errmsg));
+    xsignal1 (ret == SQLITE_LOCKED || ret == SQLITE_BUSY?
+             Qsqlite_locked_error: Qerror,
+             build_string (errmsg));
 
   return retval;
 }
@@ -698,8 +700,15 @@ syms_of_sqlite (void)
   DEFSYM (Qfull, "full");
 #endif
   defsubr (&Ssqlitep);
-  DEFSYM (Qsqlitep, "sqlitep");
   defsubr (&Ssqlite_available_p);
+
+  DEFSYM (Qsqlite_locked_error, "sqlite-locked-error");
+  Fput (Qsqlite_locked_error, Qerror_conditions,
+       Fpurecopy (list2 (Qsqlite_locked_error, Qerror)));
+  Fput (Qsqlite_locked_error, Qerror_message,
+       build_pure_c_string ("Database locked"));
+
+  DEFSYM (Qsqlitep, "sqlitep");
   DEFSYM (Qfalse, "false");
   DEFSYM (Qsqlite, "sqlite");
   DEFSYM (Qsqlite3, "sqlite3");