This allows slight code simplifications across the tree.
Signed-off-by: Ben Pfaff <b...@ovn.org>
---
lib/ovsdb-data.c | 5 ++---
lib/ovsdb-error.c | 29 +++++++++++++++++++++++------
lib/ovsdb-error.h | 3 ++-
lib/ovsdb-idl.c | 9 +++------
ovsdb/file.c | 7 ++-----
ovsdb/ovsdb-server.c | 6 ++----
tests/test-ovsdb.c | 18 ++++++------------
7 files changed, 40 insertions(+), 37 deletions(-)
diff --git a/lib/ovsdb-data.c b/lib/ovsdb-data.c
index 5d560fd98b24..3ddf5f5bd539 100644
--- a/lib/ovsdb-data.c
+++ b/lib/ovsdb-data.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009, 2010, 2011, 2012, 2014, 2016 Nicira, Inc.
+/* Copyright (c) 2009, 2010, 2011, 2012, 2014, 2016, 2017 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -664,8 +664,7 @@ ovsdb_atom_from_string(union ovsdb_atom *atom,
free(*range_end_atom);
*range_end_atom = NULL;
}
- msg = ovsdb_error_to_string(error);
- ovsdb_error_destroy(error);
+ msg = ovsdb_error_to_string_free(error);
}
return msg;
}
diff --git a/lib/ovsdb-error.c b/lib/ovsdb-error.c
index d8161e6d7b9a..9b1af68c6ca3 100644
--- a/lib/ovsdb-error.c
+++ b/lib/ovsdb-error.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009, 2010, 2011, 2012, 2016 Nicira, Inc.
+/* Copyright (c) 2009, 2010, 2011, 2012, 2016, 2017 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -153,11 +153,9 @@ ovsdb_internal_error(struct ovsdb_error *inner_error,
ds_put_format(&ds, " (%s %s)", program_name, VERSION);
if (inner_error) {
- char *s = ovsdb_error_to_string(inner_error);
+ char *s = ovsdb_error_to_string_free(inner_error);
ds_put_format(&ds, " (generated from: %s)", s);
free(s);
-
- ovsdb_error_destroy(inner_error);
}
error = ovsdb_error("internal error", "%s", ds_cstr(&ds));
@@ -223,6 +221,8 @@ ovsdb_error_to_json(const struct ovsdb_error *error)
return json;
}
+/* Returns 'error' converted to a string suitable for use as an error message.
+ * The caller must free the returned string (with free()). */
char *
ovsdb_error_to_string(const struct ovsdb_error *error)
{
@@ -240,6 +240,24 @@ ovsdb_error_to_string(const struct ovsdb_error *error)
return ds_steal_cstr(&ds);
}
+/* Returns 'error' converted to a string suitable for use as an error message.
+ * The caller must free the returned string (with free()).
+ *
+ * If 'error' is NULL, returns NULL.
+ *
+ * Also, frees 'error'. */
+char *
+ovsdb_error_to_string_free(struct ovsdb_error *error)
+{
+ if (error) {
+ char *s = ovsdb_error_to_string(error);
+ ovsdb_error_destroy(error);
+ return s;
+ } else {
+ return NULL;
+ }
+}
+
const char *
ovsdb_error_get_tag(const struct ovsdb_error *error)
{
@@ -254,9 +272,8 @@ ovsdb_error_assert(struct ovsdb_error *error)
{
if (error) {
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
VLOG_ERR_RL(&rl, "unexpected ovsdb error: %s", s);
free(s);
- ovsdb_error_destroy(error);
}
}
diff --git a/lib/ovsdb-error.h b/lib/ovsdb-error.h
index da91b74999d1..ff9b889a8687 100644
--- a/lib/ovsdb-error.h
+++ b/lib/ovsdb-error.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009, 2010, 2011 Nicira, Inc.
+/* Copyright (c) 2009, 2010, 2011, 2016, 2017 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -64,6 +64,7 @@ struct ovsdb_error *ovsdb_error_clone(const struct
ovsdb_error *)
OVS_WARN_UNUSED_RESULT;
char *ovsdb_error_to_string(const struct ovsdb_error *);
+char *ovsdb_error_to_string_free(struct ovsdb_error *);
struct json *ovsdb_error_to_json(const struct ovsdb_error *);
const char *ovsdb_error_get_tag(const struct ovsdb_error *);
diff --git a/lib/ovsdb-idl.c b/lib/ovsdb-idl.c
index 2a3405b6f93a..96e5c1f58bbf 100644
--- a/lib/ovsdb-idl.c
+++ b/lib/ovsdb-idl.c
@@ -1455,10 +1455,9 @@ ovsdb_idl_send_schema_request(struct ovsdb_idl *idl)
static void
log_error(struct ovsdb_error *error)
{
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
VLOG_WARN("error parsing database schema: %s", s);
free(s);
- ovsdb_error_destroy(error);
}
/* Frees 'schema', which is in the format returned by parse_schema(). */
@@ -1976,12 +1975,11 @@ ovsdb_idl_row_change__(struct ovsdb_idl_row *row, const
struct json *row_json,
ovsdb_datum_destroy(&datum, &column->type);
} else {
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
VLOG_WARN_RL(&syntax_rl, "error parsing column %s in row "UUID_FMT
" in table %s: %s", column_name,
UUID_ARGS(&row->uuid), table->class_->name, s);
free(s);
- ovsdb_error_destroy(error);
}
}
return changed;
@@ -4186,11 +4184,10 @@ ovsdb_idl_txn_process_insert_reply(struct
ovsdb_idl_txn_insert *insert,
error = ovsdb_atom_from_json(&uuid, &uuid_type, json_uuid, NULL);
if (error) {
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
VLOG_WARN_RL(&syntax_rl, "\"insert\" reply \"uuid\" is not a JSON "
"UUID: %s", s);
free(s);
- ovsdb_error_destroy(error);
return false;
}
diff --git a/ovsdb/file.c b/ovsdb/file.c
index 6a406da2a838..2f07bba3d30c 100644
--- a/ovsdb/file.c
+++ b/ovsdb/file.c
@@ -237,11 +237,9 @@ ovsdb_file_open__(const char *file_name,
/* Log error but otherwise ignore it. Probably the database just got
* truncated due to power failure etc. and we should use its current
* contents. */
- char *msg = ovsdb_error_to_string(error);
+ char *msg = ovsdb_error_to_string_free(error);
VLOG_ERR("%s", msg);
free(msg);
-
- ovsdb_error_destroy(error);
}
if (!read_only) {
@@ -608,8 +606,7 @@ ovsdb_file_commit(struct ovsdb_replica *replica,
{
error = ovsdb_file_compact(file);
if (error) {
- char *s = ovsdb_error_to_string(error);
- ovsdb_error_destroy(error);
+ char *s = ovsdb_error_to_string_free(error);
VLOG_WARN("%s: compacting database failed (%s), retrying in "
"%d seconds",
file->file_name, s, COMPACT_RETRY_MSEC / 1000);
diff --git a/ovsdb/ovsdb-server.c b/ovsdb/ovsdb-server.c
index 1e0c20486e38..4754a517d316 100644
--- a/ovsdb/ovsdb-server.c
+++ b/ovsdb/ovsdb-server.c
@@ -916,10 +916,9 @@ update_remote_status(const struct ovsdb_jsonrpc_server
*jsonrpc,
db = node->data;
error = ovsdb_txn_commit(db->txn, false);
if (error) {
- char *msg = ovsdb_error_to_string(error);
+ char *msg = ovsdb_error_to_string_free(error);
VLOG_ERR_RL(&rl, "Failed to update remote status: %s", msg);
free(msg);
- ovsdb_error_destroy(error);
}
}
}
@@ -1157,10 +1156,9 @@ ovsdb_server_compact(struct unixctl_conn *conn, int argc,
error = ovsdb_file_compact(db->file);
if (error) {
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
ds_put_format(&reply, "%s\n", s);
free(s);
- ovsdb_error_destroy(error);
}
n++;
diff --git a/tests/test-ovsdb.c b/tests/test-ovsdb.c
index 5037258cd4c8..cf9ad0c1938d 100644
--- a/tests/test-ovsdb.c
+++ b/tests/test-ovsdb.c
@@ -269,8 +269,7 @@ print_and_free_json(struct json *json)
static void
print_and_free_ovsdb_error(struct ovsdb_error *error)
{
- char *string = ovsdb_error_to_string(error);
- ovsdb_error_destroy(error);
+ char *string = ovsdb_error_to_string_free(error);
puts(string);
free(string);
}
@@ -279,8 +278,7 @@ static void
check_ovsdb_error(struct ovsdb_error *error)
{
if (error) {
- char *s = ovsdb_error_to_string(error);
- ovsdb_error_destroy(error);
+ char *s = ovsdb_error_to_string_free(error);
ovs_fatal(0, "%s", s);
}
}
@@ -344,10 +342,9 @@ do_log_io(struct ovs_cmdl_context *ctx)
ovs_fatal(0, "unknown log-io command \"%s\"", command);
}
if (error) {
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
printf("%s: %s failed: %s\n", name, command, s);
free(s);
- ovsdb_error_destroy(error);
} else {
printf("%s: %s successful\n", name, command);
}
@@ -450,8 +447,7 @@ do_diff_data(struct ovs_cmdl_context *ctx)
/* Apply diff to 'old' to create'reincarnation'. */
error = ovsdb_datum_apply_diff(&reincarnation, &old, &diff, &type);
if (error) {
- char *string = ovsdb_error_to_string(error);
- ovsdb_error_destroy(error);
+ char *string = ovsdb_error_to_string_free(error);
ovs_fatal(0, "%s", string);
}
@@ -873,10 +869,9 @@ do_parse_conditions(struct ovs_cmdl_context *ctx)
if (!error) {
print_and_free_json(ovsdb_condition_to_json(&cnd));
} else {
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
ovs_error(0, "%s", s);
free(s);
- ovsdb_error_destroy(error);
exit_code = 1;
}
json_destroy(json);
@@ -1044,10 +1039,9 @@ do_parse_mutations(struct ovs_cmdl_context *ctx)
if (!error) {
print_and_free_json(ovsdb_mutation_set_to_json(&set));
} else {
- char *s = ovsdb_error_to_string(error);
+ char *s = ovsdb_error_to_string_free(error);
ovs_error(0, "%s", s);
free(s);
- ovsdb_error_destroy(error);
exit_code = 1;
}
json_destroy(json);
--
2.10.2
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