+
+static bool
+is_condition_satified(const struct vsctl_table_class *table,
+ const struct ovsdb_idl_row *row, const char *arg,
+ struct ovsdb_symbol_table *symtab)
+{
+ static const char *operators[] = {
+ "=", "!=", "<", ">", "<=", ">="
+ };
+
+ const struct ovsdb_idl_column *column;
+ const struct ovsdb_datum *have_datum;
+ char *key_string, *value_string;
+ const char *operator;
+ unsigned int idx;
+ char *error;
+ int cmp = 0;
+
+ error = parse_column_key_value(arg, table, &column, &key_string,
+ &operator, operators, ARRAY_SIZE(operators),
+ &value_string);
+ die_if_error(error);
+ if (!value_string) {
+ vsctl_fatal("%s: missing value", arg);
+ }
+
+ have_datum = ovsdb_idl_read(row, column);
+ if (key_string) {
+ union ovsdb_atom want_key, want_value;
+
+ if (column->type.value.type == OVSDB_TYPE_VOID) {
+ vsctl_fatal("cannot specify key to check for non-map column %s",
+ column->name);
+ }
+
+ die_if_error(ovsdb_atom_from_string(&want_key, &column->type.key,
+ key_string, symtab));
+ die_if_error(ovsdb_atom_from_string(&want_value, &column->type.value,
+ value_string, symtab));
+
+ idx = ovsdb_datum_find_key(have_datum,
+ &want_key, column->type.key.type);
+ if (idx != UINT_MAX) {
+ cmp = ovsdb_atom_compare_3way(&have_datum->values[idx],
+ &want_value,
+ column->type.value.type);
+ }
+
+ ovsdb_atom_destroy(&want_key, column->type.key.type);
+ ovsdb_atom_destroy(&want_value, column->type.value.type);
+ } else {
+ struct ovsdb_datum want_datum;
+
+ die_if_error(ovsdb_datum_from_string(&want_datum, &column->type,
+ value_string, symtab));
+ idx = 0;
+ cmp = ovsdb_datum_compare_3way(have_datum, &want_datum,
+ &column->type);
+ ovsdb_datum_destroy(&want_datum, &column->type);
+ }
+
+ free(key_string);
+ free(value_string);
+
+ return (idx == UINT_MAX ? false
+ : !strcmp(operator, "=") ? cmp == 0
+ : !strcmp(operator, "!=") ? cmp != 0
+ : !strcmp(operator, "<") ? cmp < 0
+ : !strcmp(operator, ">") ? cmp > 0
+ : !strcmp(operator, "<=") ? cmp <= 0
+ : !strcmp(operator, ">=") ? cmp >= 0
+ : (abort(), 0));
+}
+
+static void
+cmd_wait_until(struct vsctl_context *ctx)
+{
+ const char *table_name = ctx->argv[1];
+ const char *record_id = ctx->argv[2];
+ const struct vsctl_table_class *table;
+ const struct ovsdb_idl_row *row;
+ int i;
+
+ table = get_table(table_name);
+
+ row = get_row(ctx, table, record_id);
+ if (!row) {
+ ctx->try_again = true;
+ return;
+ }
+
+ for (i = 3; i < ctx->argc; i++) {
+ if (!is_condition_satified(table, row, ctx->argv[i], ctx->symtab)) {
+ ctx->try_again = true;
+ return;
+ }
+ }
+}