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qapi: Make visitor functions taking Error ** return bool, not void

Browse source 
See recent commit "error: Document Error API usage rules" for
rationale.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-18-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2020-07-07 18:05:45 +02:00
parent 3c4b89c3b2
commit 012d4c96e2
14 changed files with 456 additions and 361 deletions
Download patch file Download diff file Expand all files Collapse all files

62
qapi/string-input-visitor.c
View file

@ -60,7 +60,7 @@ static StringInputVisitor *to_siv(Visitor *v)
return container_of(v, StringInputVisitor, visitor);
}
static void start_list(Visitor *v, const char *name, GenericList **list,
static bool start_list(Visitor *v, const char *name, GenericList **list,
size_t size, Error **errp)
{
StringInputVisitor *siv = to_siv(v);
@ -80,6 +80,7 @@ static void start_list(Visitor *v, const char *name, GenericList **list,
}
siv->lm = LM_UNPARSED;
}
return true;
}
static GenericList *next_list(Visitor *v, GenericList *tail, size_t size)
@ -102,7 +103,7 @@ static GenericList *next_list(Visitor *v, GenericList *tail, size_t size)
return tail->next;
}
static void check_list(Visitor *v, Error **errp)
static bool check_list(Visitor *v, Error **errp)
{
const StringInputVisitor *siv = to_siv(v);
@ -111,9 +112,9 @@ static void check_list(Visitor *v, Error **errp)
case LM_UINT64_RANGE:
case LM_UNPARSED:
error_setg(errp, "Fewer list elements expected");
return;
return false;
case LM_END:
return;
return true;
default:
abort();
}
@ -178,7 +179,7 @@ static int try_parse_int64_list_entry(StringInputVisitor *siv, int64_t *obj)
return 0;
}
static void parse_type_int64(Visitor *v, const char *name, int64_t *obj,
static bool parse_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
StringInputVisitor *siv = to_siv(v);
@ -188,17 +189,17 @@ static void parse_type_int64(Visitor *v, const char *name, int64_t *obj,
case LM_NONE:
/* just parse a simple int64, bail out if not completely consumed */
if (qemu_strtoi64(siv->string, NULL, 0, &val)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
name ? name : "null", "int64");
return;
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
name ? name : "null", "int64");
return false;
}
*obj = val;
return;
return true;
case LM_UNPARSED:
if (try_parse_int64_list_entry(siv, obj)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
"list of int64 values or ranges");
return;
return false;
}
assert(siv->lm == LM_INT64_RANGE);
/* fall through */
@ -211,10 +212,10 @@ static void parse_type_int64(Visitor *v, const char *name, int64_t *obj,
/* end of range, check if there is more to parse */
siv->lm = siv->unparsed_string[0] ? LM_UNPARSED : LM_END;
}
return;
return true;
case LM_END:
error_setg(errp, "Fewer list elements expected");
return;
return false;
default:
abort();
}
@ -268,7 +269,7 @@ static int try_parse_uint64_list_entry(StringInputVisitor *siv, uint64_t *obj)
return 0;
}
static void parse_type_uint64(Visitor *v, const char *name, uint64_t *obj,
static bool parse_type_uint64(Visitor *v, const char *name, uint64_t *obj,
Error **errp)
{
StringInputVisitor *siv = to_siv(v);
@ -280,15 +281,15 @@ static void parse_type_uint64(Visitor *v, const char *name, uint64_t *obj,
if (qemu_strtou64(siv->string, NULL, 0, &val)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
"uint64");
return;
return false;
}
*obj = val;
return;
return true;
case LM_UNPARSED:
if (try_parse_uint64_list_entry(siv, obj)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
"list of uint64 values or ranges");
return;
return false;
}
assert(siv->lm == LM_UINT64_RANGE);
/* fall through */
@ -301,16 +302,16 @@ static void parse_type_uint64(Visitor *v, const char *name, uint64_t *obj,
/* end of range, check if there is more to parse */
siv->lm = siv->unparsed_string[0] ? LM_UNPARSED : LM_END;
}
return;
return true;
case LM_END:
error_setg(errp, "Fewer list elements expected");
return;
return false;
default:
abort();
}
}
static void parse_type_size(Visitor *v, const char *name, uint64_t *obj,
static bool parse_type_size(Visitor *v, const char *name, uint64_t *obj,
Error **errp)
{
StringInputVisitor *siv = to_siv(v);
@ -320,13 +321,14 @@ static void parse_type_size(Visitor *v, const char *name, uint64_t *obj,
assert(siv->lm == LM_NONE);
if (!parse_option_size(name, siv->string, &val, &err)) {
error_propagate(errp, err);
return;
return false;
}
*obj = val;
return true;
}
static void parse_type_bool(Visitor *v, const char *name, bool *obj,
static bool parse_type_bool(Visitor *v, const char *name, bool *obj,
Error **errp)
{
StringInputVisitor *siv = to_siv(v);
@ -336,29 +338,31 @@ static void parse_type_bool(Visitor *v, const char *name, bool *obj,
!strcasecmp(siv->string, "yes") ||
!strcasecmp(siv->string, "true")) {
*obj = true;
return;
return true;
}
if (!strcasecmp(siv->string, "off") ||
!strcasecmp(siv->string, "no") ||
!strcasecmp(siv->string, "false")) {
*obj = false;
return;
return true;
}
error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"boolean");
return false;
}
static void parse_type_str(Visitor *v, const char *name, char **obj,
static bool parse_type_str(Visitor *v, const char *name, char **obj,
Error **errp)
{
StringInputVisitor *siv = to_siv(v);
assert(siv->lm == LM_NONE);
*obj = g_strdup(siv->string);
return true;
}
static void parse_type_number(Visitor *v, const char *name, double *obj,
static bool parse_type_number(Visitor *v, const char *name, double *obj,
Error **errp)
{
StringInputVisitor *siv = to_siv(v);
@ -368,13 +372,14 @@ static void parse_type_number(Visitor *v, const char *name, double *obj,
if (qemu_strtod_finite(siv->string, NULL, &val)) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"number");
return;
return false;
}
*obj = val;
return true;
}
static void parse_type_null(Visitor *v, const char *name, QNull **obj,
static bool parse_type_null(Visitor *v, const char *name, QNull **obj,
Error **errp)
{
StringInputVisitor *siv = to_siv(v);
@ -385,10 +390,11 @@ static void parse_type_null(Visitor *v, const char *name, QNull **obj,
if (siv->string[0]) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"null");
return;
return false;
}
*obj = qnull();
return true;
}
static void string_input_free(Visitor *v)