1 files changed, 134 insertions, 0 deletions
diff --git a/src/lib-dict/dict-fail.c b/src/lib-dict/dict-fail.c
new file mode 100644
index 0000000..101750b
--- /dev/null
+++ b/src/lib-dict/dict-fail.c
@@ -0,0 +1,134 @@
+/* Copyright (c) 2017-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "dict.h"
+#include "dict-private.h"
+
+struct dict_iterate_context dict_iter_unsupported =
+{
+	.dict = &dict_driver_fail,
+};
+
+struct dict_transaction_context dict_transaction_unsupported =
+{
+        .dict = &dict_driver_fail,
+};
+
+static int dict_fail_init(struct dict *dict_driver ATTR_UNUSED,
+			  const char *uri ATTR_UNUSED,
+			  const struct dict_settings *set ATTR_UNUSED,
+			  struct dict **dict_r ATTR_UNUSED, const char **error_r)
+{
+	*error_r = "Unsupported operation (dict does not support this feature)";
+	return -1;
+}
+
+static void dict_fail_deinit(struct dict *dict ATTR_UNUSED)
+{
+}
+
+static void dict_fail_wait(struct dict *dict ATTR_UNUSED)
+{
+}
+
+static int dict_fail_lookup(struct dict *dict ATTR_UNUSED,
+			    const struct dict_op_settings *set ATTR_UNUSED,
+			    pool_t pool ATTR_UNUSED,
+			    const char *key ATTR_UNUSED, const char **value_r ATTR_UNUSED,
+			    const char **error_r)
+{
+	*error_r = "Unsupported operation (dict does not support this feature)";
+	return -1;
+}
+
+static struct dict_iterate_context *
+dict_fail_iterate_init(struct dict *dict ATTR_UNUSED,
+		       const struct dict_op_settings *set ATTR_UNUSED,
+		       const char *path ATTR_UNUSED,
+		       enum dict_iterate_flags flags ATTR_UNUSED)
+{
+	return &dict_iter_unsupported;
+}
+
+static bool dict_fail_iterate(struct dict_iterate_context *ctx ATTR_UNUSED,
+			      const char **key_r ATTR_UNUSED,
+			      const char *const **values_r ATTR_UNUSED)
+{
+	return FALSE;
+}
+
+static int dict_fail_iterate_deinit(struct dict_iterate_context *ctx ATTR_UNUSED,
+				    const char **error_r)
+{
+	*error_r = "Unsupported operation (dict does not support this feature)";
+	return -1;
+}
+
+static struct dict_transaction_context *dict_fail_transaction_init(struct dict *dict ATTR_UNUSED)
+{
+	return &dict_transaction_unsupported;
+}
+
+static void dict_fail_transaction_commit(struct dict_transaction_context *ctx ATTR_UNUSED,
+					 bool async ATTR_UNUSED,
+					 dict_transaction_commit_callback_t *callback,
+					 void *context)
+{
+	struct dict_commit_result res = {
+		.ret = DICT_COMMIT_RET_FAILED,
+		.error = "Unsupported operation (dict does not support this feature)"
+	};
+	if (callback != NULL)
+		callback(&res, context);
+}
+
+static void dict_fail_transaction_rollback(struct dict_transaction_context *ctx ATTR_UNUSED)
+{
+}
+
+static void dict_fail_set(struct dict_transaction_context *ctx ATTR_UNUSED,
+			  const char *key ATTR_UNUSED, const char *value ATTR_UNUSED)
+{
+}
+
+static void dict_fail_unset(struct dict_transaction_context *ctx ATTR_UNUSED,
+			    const char *key ATTR_UNUSED)
+{
+}
+
+static void dict_fail_atomic_inc(struct dict_transaction_context *ctx ATTR_UNUSED,
+				 const char *key ATTR_UNUSED, long long diff ATTR_UNUSED)
+{
+}
+
+static bool dict_fail_switch_ioloop(struct dict *dict ATTR_UNUSED)
+{
+	return TRUE;
+}
+
+static void dict_fail_set_timestamp(struct dict_transaction_context *ctx ATTR_UNUSED,
+				    const struct timespec *ts ATTR_UNUSED)
+{
+}
+
+struct dict dict_driver_fail = {
+	.name = "fail",
+	.v = {
+		.init = dict_fail_init,
+		.deinit = dict_fail_deinit,
+		.wait = dict_fail_wait,
+		.lookup = dict_fail_lookup,
+		.iterate_init = dict_fail_iterate_init,
+		.iterate = dict_fail_iterate,
+		.iterate_deinit = dict_fail_iterate_deinit,
+		.transaction_init = dict_fail_transaction_init,
+		.transaction_commit = dict_fail_transaction_commit,
+		.transaction_rollback = dict_fail_transaction_rollback,
+		.set = dict_fail_set,
+		.unset = dict_fail_unset,
+		.atomic_inc = dict_fail_atomic_inc,
+		.lookup_async = NULL,
+		.switch_ioloop = dict_fail_switch_ioloop,
+		.set_timestamp = dict_fail_set_timestamp
+	},
+};