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

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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
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15
audio/audio_legacy.c
View File

@@ -421,11 +421,12 @@ typedef struct {
GList *path;
} LegacyPrintVisitor;
static void lv_start_struct(Visitor *v, const char *name, void **obj,
static bool lv_start_struct(Visitor *v, const char *name, void **obj,
size_t size, Error **errp)
{
LegacyPrintVisitor *lv = (LegacyPrintVisitor *) v;
lv->path = g_list_append(lv->path, g_strdup(name));
return true;
}
static void lv_end_struct(Visitor *v, void **obj)
@@ -453,27 +454,30 @@ static void lv_print_key(Visitor *v, const char *name)
printf("%s=", name);
}
static void lv_type_int64(Visitor *v, const char *name, int64_t *obj,
static bool lv_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
lv_print_key(v, name);
printf("%" PRIi64, *obj);
return true;
}
static void lv_type_uint64(Visitor *v, const char *name, uint64_t *obj,
static bool lv_type_uint64(Visitor *v, const char *name, uint64_t *obj,
Error **errp)
{
lv_print_key(v, name);
printf("%" PRIu64, *obj);
return true;
}
static void lv_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
static bool lv_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
{
lv_print_key(v, name);
printf("%s", *obj ? "on" : "off");
return true;
}
static void lv_type_str(Visitor *v, const char *name, char **obj, Error **errp)
static bool lv_type_str(Visitor *v, const char *name, char **obj, Error **errp)
{
const char *str = *obj;
lv_print_key(v, name);
@@ -484,6 +488,7 @@ static void lv_type_str(Visitor *v, const char *name, char **obj, Error **errp)
}
putchar(*str++);
}
return true;
}
static void lv_complete(Visitor *v, void *opaque)

51
docs/devel/qapi-code-gen.txt
View File

@@ -1408,42 +1408,38 @@ Example:
#include "example-qapi-types.h"
void visit_type_UserDefOne_members(Visitor *v, UserDefOne *obj, Error **errp);
void visit_type_UserDefOne(Visitor *v, const char *name, UserDefOne **obj, Error **errp);
void visit_type_UserDefOneList(Visitor *v, const char *name, UserDefOneList **obj, Error **errp);
bool visit_type_UserDefOne_members(Visitor *v, UserDefOne *obj, Error **errp);
bool visit_type_UserDefOne(Visitor *v, const char *name, UserDefOne **obj, Error **errp);
bool visit_type_UserDefOneList(Visitor *v, const char *name, UserDefOneList **obj, Error **errp);
void visit_type_q_obj_my_command_arg_members(Visitor *v, q_obj_my_command_arg *obj, Error **errp);
bool visit_type_q_obj_my_command_arg_members(Visitor *v, q_obj_my_command_arg *obj, Error **errp);
#endif /* EXAMPLE_QAPI_VISIT_H */
$ cat qapi-generated/example-qapi-visit.c
[Uninteresting stuff omitted...]
void visit_type_UserDefOne_members(Visitor *v, UserDefOne *obj, Error **errp)
bool visit_type_UserDefOne_members(Visitor *v, UserDefOne *obj, Error **errp)
{
Error *err = NULL;
visit_type_int(v, "integer", &obj->integer, &err);
if (err) {
goto out;
if (!visit_type_int(v, "integer", &obj->integer, errp)) {
return false;
}
if (visit_optional(v, "string", &obj->has_string)) {
visit_type_str(v, "string", &obj->string, &err);
if (err) {
goto out;
if (!visit_type_str(v, "string", &obj->string, errp)) {
return false;
}
}
out:
error_propagate(errp, err);
return !err;
}
void visit_type_UserDefOne(Visitor *v, const char *name, UserDefOne **obj, Error **errp)
bool visit_type_UserDefOne(Visitor *v, const char *name, UserDefOne **obj, Error **errp)
{
Error *err = NULL;
visit_start_struct(v, name, (void **)obj, sizeof(UserDefOne), &err);
if (err) {
goto out;
if (!visit_start_struct(v, name, (void **)obj, sizeof(UserDefOne), errp)) {
return false;
}
if (!*obj) {
/* incomplete */
@@ -1461,19 +1457,18 @@ Example:
qapi_free_UserDefOne(*obj);
*obj = NULL;
}
out:
error_propagate(errp, err);
return !err;
}
void visit_type_UserDefOneList(Visitor *v, const char *name, UserDefOneList **obj, Error **errp)
bool visit_type_UserDefOneList(Visitor *v, const char *name, UserDefOneList **obj, Error **errp)
{
Error *err = NULL;
UserDefOneList *tail;
size_t size = sizeof(**obj);
visit_start_list(v, name, (GenericList **)obj, size, &err);
if (err) {
goto out;
if (!visit_start_list(v, name, (GenericList **)obj, size, errp)) {
return false;
}
for (tail = *obj; tail;
@@ -1492,21 +1487,19 @@ Example:
qapi_free_UserDefOneList(*obj);
*obj = NULL;
}
out:
error_propagate(errp, err);
return !err;
}
void visit_type_q_obj_my_command_arg_members(Visitor *v, q_obj_my_command_arg *obj, Error **errp)
bool visit_type_q_obj_my_command_arg_members(Visitor *v, q_obj_my_command_arg *obj, Error **errp)
{
Error *err = NULL;
visit_type_UserDefOneList(v, "arg1", &obj->arg1, &err);
if (err) {
goto out;
if (!visit_type_UserDefOneList(v, "arg1", &obj->arg1, errp)) {
return false;
}
out:
error_propagate(errp, err);
return !err;
}
[Uninteresting stuff omitted...]

8
include/qapi/clone-visitor.h
View File

@@ -20,10 +20,10 @@
*/
typedef struct QapiCloneVisitor QapiCloneVisitor;
void *qapi_clone(const void *src, void (*visit_type)(Visitor *, const char *,
void *qapi_clone(const void *src, bool (*visit_type)(Visitor *, const char *,
void **, Error **));
void qapi_clone_members(void *dst, const void *src, size_t sz,
void (*visit_type_members)(Visitor *, void *,
bool (*visit_type_members)(Visitor *, void *,
Error **));
/*
@@ -34,7 +34,7 @@ void qapi_clone_members(void *dst, const void *src, size_t sz,
*/
#define QAPI_CLONE(type, src) \
((type *)qapi_clone(src, \
(void (*)(Visitor *, const char *, void**, \
(bool (*)(Visitor *, const char *, void **, \
Error **))visit_type_ ## type))
/*
@@ -45,7 +45,7 @@ void qapi_clone_members(void *dst, const void *src, size_t sz,
*/
#define QAPI_CLONE_MEMBERS(type, dst, src) \
qapi_clone_members(dst, src, sizeof(type), \
(void (*)(Visitor *, void *, \
(bool (*)(Visitor *, void *, \
Error **))visit_type_ ## type ## _members)
#endif

26
include/qapi/visitor-impl.h
View File

@@ -48,31 +48,31 @@ struct Visitor
*/
/* Must be set to visit structs */
void (*start_struct)(Visitor *v, const char *name, void **obj,
bool (*start_struct)(Visitor *v, const char *name, void **obj,
size_t size, Error **errp);
/* Optional; intended for input visitors */
void (*check_struct)(Visitor *v, Error **errp);
bool (*check_struct)(Visitor *v, Error **errp);
/* Must be set to visit structs */
void (*end_struct)(Visitor *v, void **obj);
/* Must be set; implementations may require @list to be non-null,
* but must document it. */
void (*start_list)(Visitor *v, const char *name, GenericList **list,
bool (*start_list)(Visitor *v, const char *name, GenericList **list,
size_t size, Error **errp);
/* Must be set */
GenericList *(*next_list)(Visitor *v, GenericList *tail, size_t size);
/* Optional; intended for input visitors */
void (*check_list)(Visitor *v, Error **errp);
bool (*check_list)(Visitor *v, Error **errp);
/* Must be set */
void (*end_list)(Visitor *v, void **list);
/* Must be set by input and clone visitors to visit alternates */
void (*start_alternate)(Visitor *v, const char *name,
bool (*start_alternate)(Visitor *v, const char *name,
GenericAlternate **obj, size_t size,
Error **errp);
@@ -80,33 +80,33 @@ struct Visitor
void (*end_alternate)(Visitor *v, void **obj);
/* Must be set */
void (*type_int64)(Visitor *v, const char *name, int64_t *obj,
bool (*type_int64)(Visitor *v, const char *name, int64_t *obj,
Error **errp);
/* Must be set */
void (*type_uint64)(Visitor *v, const char *name, uint64_t *obj,
bool (*type_uint64)(Visitor *v, const char *name, uint64_t *obj,
Error **errp);
/* Optional; fallback is type_uint64() */
void (*type_size)(Visitor *v, const char *name, uint64_t *obj,
bool (*type_size)(Visitor *v, const char *name, uint64_t *obj,
Error **errp);
/* Must be set */
void (*type_bool)(Visitor *v, const char *name, bool *obj, Error **errp);
bool (*type_bool)(Visitor *v, const char *name, bool *obj, Error **errp);
/* Must be set */
void (*type_str)(Visitor *v, const char *name, char **obj, Error **errp);
bool (*type_str)(Visitor *v, const char *name, char **obj, Error **errp);
/* Must be set to visit numbers */
void (*type_number)(Visitor *v, const char *name, double *obj,
bool (*type_number)(Visitor *v, const char *name, double *obj,
Error **errp);
/* Must be set to visit arbitrary QTypes */
void (*type_any)(Visitor *v, const char *name, QObject **obj,
bool (*type_any)(Visitor *v, const char *name, QObject **obj,
Error **errp);
/* Must be set to visit explicit null values. */
void (*type_null)(Visitor *v, const char *name, QNull **obj,
bool (*type_null)(Visitor *v, const char *name, QNull **obj,
Error **errp);
/* Must be set for input visitors to visit structs, optional otherwise.

102
include/qapi/visitor.h
View File

@@ -60,7 +60,7 @@
* All QAPI types have a corresponding function with a signature
* roughly compatible with this:
*
* void visit_type_FOO(Visitor *v, const char *name, T obj, Error **errp);
* bool visit_type_FOO(Visitor *v, const char *name, T obj, Error **errp);
*
* where T is FOO for scalar types, and FOO * otherwise. The scalar
* visitors are declared here; the remaining visitors are generated in
@@ -95,14 +95,16 @@
* incomplete object, such an object is possible only by manual
* construction.
*
* visit_type_FOO() returns true on success, false on error.
*
* For the QAPI object types (structs, unions, and alternates), there
* is an additional generated function in qapi-visit-MODULE.h
* compatible with:
*
* void visit_type_FOO_members(Visitor *v, FOO *obj, Error **errp);
* bool visit_type_FOO_members(Visitor *v, FOO *obj, Error **errp);
*
* for visiting the members of a type without also allocating the QAPI
* struct.
* struct. It also returns true on success, false on error.
*
* Additionally, QAPI pointer types (structs, unions, alternates, and
* lists) have a generated function in qapi-types-MODULE.h compatible
@@ -131,8 +133,7 @@
* Visitor *v;
*
* v = FOO_visitor_new(...);
* visit_type_Foo(v, NULL, &f, &err);
* if (err) {
* if (!visit_type_Foo(v, NULL, &f, &err)) {
* ...handle error...
* } else {
* ...use f...
@@ -148,8 +149,7 @@
* Visitor *v;
*
* v = FOO_visitor_new(...);
* visit_type_FooList(v, NULL, &l, &err);
* if (err) {
* if (!visit_type_FooList(v, NULL, &l, &err)) {
* ...handle error...
* } else {
* for ( ; l; l = l->next) {
@@ -186,34 +186,32 @@
* <example>
* Visitor *v;
* Error *err = NULL;
* bool ok = false;
* int value;
*
* v = FOO_visitor_new(...);
* visit_start_struct(v, NULL, NULL, 0, &err);
* if (err) {
* if (!visit_start_struct(v, NULL, NULL, 0, &err)) {
* goto out;
* }
* visit_start_list(v, "list", NULL, 0, &err);
* if (err) {
* if (!visit_start_list(v, "list", NULL, 0, &err)) {
* goto outobj;
* }
* value = 1;
* visit_type_int(v, NULL, &value, &err);
* if (err) {
* if (!visit_type_int(v, NULL, &value, &err)) {
* goto outlist;
* }
* value = 2;
* visit_type_int(v, NULL, &value, &err);
* if (err) {
* if (!visit_type_int(v, NULL, &value, &err)) {
* goto outlist;
* }
* ok = true;
* outlist:
* if (!err) {
* visit_check_list(v, &err);
* if (ok) {
* ok = visit_check_list(v, &err);
* }
* visit_end_list(v, NULL);
* if (!err) {
* visit_check_struct(v, &err);
* if (ok) {
* ok = visit_check_struct(v, &err);
* }
* outobj:
* visit_end_struct(v, NULL);
@@ -286,6 +284,8 @@ void visit_free(Visitor *v);
* On failure, set *@obj to NULL and store an error through @errp.
* Can happen only when @v is an input visitor.
*
* Return true on success, false on failure.
*
* After visit_start_struct() succeeds, the caller may visit its
* members one after the other, passing the member's name and address
* within the struct. Finally, visit_end_struct() needs to be called
@@ -295,7 +295,7 @@ void visit_free(Visitor *v);
* FIXME Should this be named visit_start_object, since it is also
* used for QAPI unions, and maps to JSON objects?
*/
void visit_start_struct(Visitor *v, const char *name, void **obj,
bool visit_start_struct(Visitor *v, const char *name, void **obj,
size_t size, Error **errp);
/*
@@ -304,12 +304,14 @@ void visit_start_struct(Visitor *v, const char *name, void **obj,
* On failure, store an error through @errp. Can happen only when @v
* is an input visitor.
*
* Return true on success, false on failure.
*
* Should be called prior to visit_end_struct() if all other
* intermediate visit steps were successful, to allow the visitor one
* last chance to report errors. May be skipped on a cleanup path,
* where there is no need to check for further errors.
*/
void visit_check_struct(Visitor *v, Error **errp);
bool visit_check_struct(Visitor *v, Error **errp);
/*
* Complete an object visit started earlier.
@@ -341,6 +343,8 @@ void visit_end_struct(Visitor *v, void **obj);
* On failure, set *@list to NULL and store an error through @errp.
* Can happen only when @v is an input visitor.
*
* Return true on success, false on failure.
*
* After visit_start_list() succeeds, the caller may visit its members
* one after the other. A real visit (where @list is non-NULL) uses
* visit_next_list() for traversing the linked list, while a virtual
@@ -351,7 +355,7 @@ void visit_end_struct(Visitor *v, void **obj);
* same @list to clean up, even if intermediate visits fail. See the
* examples above.
*/
void visit_start_list(Visitor *v, const char *name, GenericList **list,
bool visit_start_list(Visitor *v, const char *name, GenericList **list,
size_t size, Error **errp);
/*
@@ -376,12 +380,14 @@ GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size);
* On failure, store an error through @errp. Can happen only when @v
* is an input visitor.
*
* Return true on success, false on failure.
*
* Should be called prior to visit_end_list() if all other
* intermediate visit steps were successful, to allow the visitor one
* last chance to report errors. May be skipped on a cleanup path,
* where there is no need to check for further errors.
*/
void visit_check_list(Visitor *v, Error **errp);
bool visit_check_list(Visitor *v, Error **errp);
/*
* Complete a list visit started earlier.
@@ -412,11 +418,13 @@ void visit_end_list(Visitor *v, void **list);
* On failure, set *@obj to NULL and store an error through @errp.
* Can happen only when @v is an input visitor.
*
* Return true on success, false on failure.
*
* If successful, this must be paired with visit_end_alternate() with
* the same @obj to clean up, even if visiting the contents of the
* alternate fails.
*/
void visit_start_alternate(Visitor *v, const char *name,
bool visit_start_alternate(Visitor *v, const char *name,
GenericAlternate **obj, size_t size,
Error **errp);
@@ -468,12 +476,14 @@ bool visit_optional(Visitor *v, const char *name, bool *present);
* On failure, store an error through @errp. Can happen only when @v
* is an input visitor.
*
* Return true on success, false on failure.
*
* May call visit_type_str() under the hood, and the enum visit may
* fail even if the corresponding string visit succeeded; this implies
* that an input visitor's visit_type_str() must have no unwelcome
* side effects.
*/
void visit_type_enum(Visitor *v, const char *name, int *obj,
bool visit_type_enum(Visitor *v, const char *name, int *obj,
const QEnumLookup *lookup, Error **errp);
/*
@@ -499,28 +509,30 @@ bool visit_is_dealloc(Visitor *v);
*
* On failure, store an error through @errp. Can happen only when @v
* is an input visitor.
*
* Return true on success, false on failure.
*/
void visit_type_int(Visitor *v, const char *name, int64_t *obj, Error **errp);
bool visit_type_int(Visitor *v, const char *name, int64_t *obj, Error **errp);
/*
* Visit a uint8_t value.
* Like visit_type_int(), except clamps the value to uint8_t range.
*/
void visit_type_uint8(Visitor *v, const char *name, uint8_t *obj,
bool visit_type_uint8(Visitor *v, const char *name, uint8_t *obj,
Error **errp);
/*
* Visit a uint16_t value.
* Like visit_type_int(), except clamps the value to uint16_t range.
*/
void visit_type_uint16(Visitor *v, const char *name, uint16_t *obj,
bool visit_type_uint16(Visitor *v, const char *name, uint16_t *obj,
Error **errp);
/*
* Visit a uint32_t value.
* Like visit_type_int(), except clamps the value to uint32_t range.
*/
void visit_type_uint32(Visitor *v, const char *name, uint32_t *obj,
bool visit_type_uint32(Visitor *v, const char *name, uint32_t *obj,
Error **errp);
/*
@@ -528,34 +540,34 @@ void visit_type_uint32(Visitor *v, const char *name, uint32_t *obj,
* Like visit_type_int(), except clamps the value to uint64_t range,
* that is, ensures it is unsigned.
*/
void visit_type_uint64(Visitor *v, const char *name, uint64_t *obj,
bool visit_type_uint64(Visitor *v, const char *name, uint64_t *obj,
Error **errp);
/*
* Visit an int8_t value.
* Like visit_type_int(), except clamps the value to int8_t range.
*/
void visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp);
bool visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp);
/*
* Visit an int16_t value.
* Like visit_type_int(), except clamps the value to int16_t range.
*/
void visit_type_int16(Visitor *v, const char *name, int16_t *obj,
bool visit_type_int16(Visitor *v, const char *name, int16_t *obj,
Error **errp);
/*
* Visit an int32_t value.
* Like visit_type_int(), except clamps the value to int32_t range.
*/
void visit_type_int32(Visitor *v, const char *name, int32_t *obj,
bool visit_type_int32(Visitor *v, const char *name, int32_t *obj,
Error **errp);
/*
* Visit an int64_t value.
* Identical to visit_type_int().
*/
void visit_type_int64(Visitor *v, const char *name, int64_t *obj,
bool visit_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp);
/*
@@ -564,7 +576,7 @@ void visit_type_int64(Visitor *v, const char *name, int64_t *obj,
* recognize additional syntax, such as suffixes for easily scaling
* values.
*/
void visit_type_size(Visitor *v, const char *name, uint64_t *obj,
bool visit_type_size(Visitor *v, const char *name, uint64_t *obj,
Error **errp);
/*
@@ -578,8 +590,10 @@ void visit_type_size(Visitor *v, const char *name, uint64_t *obj,
*
* On failure, store an error through @errp. Can happen only when @v
* is an input visitor.
*
* Return true on success, false on failure.
*/
void visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp);
bool visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp);
/*
* Visit a string value.
@@ -598,9 +612,11 @@ void visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp);
* On failure, set *@obj to NULL and store an error through @errp.
* Can happen only when @v is an input visitor.
*
* Return true on success, false on failure.
*
* FIXME: Callers that try to output NULL *obj should not be allowed.
*/
void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp);
bool visit_type_str(Visitor *v, const char *name, char **obj, Error **errp);
/*
* Visit a number (i.e. double) value.
@@ -614,8 +630,10 @@ void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp);
*
* On failure, store an error through @errp. Can happen only when @v
* is an input visitor.
*
* Return true on success, false on failure.
*/
void visit_type_number(Visitor *v, const char *name, double *obj,
bool visit_type_number(Visitor *v, const char *name, double *obj,
Error **errp);
/*
@@ -631,11 +649,13 @@ void visit_type_number(Visitor *v, const char *name, double *obj,
* On failure, set *@obj to NULL and store an error through @errp.
* Can happen only when @v is an input visitor.
*
* Return true on success, false on failure.
*
* Note that some kinds of input can't express arbitrary QObject.
* E.g. the visitor returned by qobject_input_visitor_new_keyval()
* can't create numbers or booleans, only strings.
*/
void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp);
bool visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp);
/*
* Visit a JSON null value.
@@ -648,8 +668,10 @@ void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp);
*
* On failure, set *@obj to NULL and store an error through @errp.
* Can happen only when @v is an input visitor.
*
* Return true on success, false on failure.
*/
void visit_type_null(Visitor *v, const char *name, QNull **obj,
bool visit_type_null(Visitor *v, const char *name, QNull **obj,
Error **errp);
#endif

66
qapi/opts-visitor.c
View File

@@ -133,7 +133,7 @@ opts_visitor_insert(GHashTable *unprocessed_opts, const QemuOpt *opt)
}
static void
static bool
opts_start_struct(Visitor *v, const char *name, void **obj,
size_t size, Error **errp)
{
@@ -144,7 +144,7 @@ opts_start_struct(Visitor *v, const char *name, void **obj,
*obj = g_malloc0(size);
}
if (ov->depth++ > 0) {
return;
return true;
}
ov->unprocessed_opts = g_hash_table_new_full(&g_str_hash, &g_str_equal,
@@ -163,10 +163,11 @@ opts_start_struct(Visitor *v, const char *name, void **obj,
ov->fake_id_opt->str = g_strdup(ov->opts_root->id);
opts_visitor_insert(ov->unprocessed_opts, ov->fake_id_opt);
}
return true;
}
static void
static bool
opts_check_struct(Visitor *v, Error **errp)
{
OptsVisitor *ov = to_ov(v);
@@ -174,7 +175,7 @@ opts_check_struct(Visitor *v, Error **errp)
GQueue *any;
if (ov->depth > 1) {
return;
return true;
}
/* we should have processed all (distinct) QemuOpt instances */
@@ -184,7 +185,9 @@ opts_check_struct(Visitor *v, Error **errp)
first = g_queue_peek_head(any);
error_setg(errp, QERR_INVALID_PARAMETER, first->name);
return false;
}
return true;
}
@@ -221,7 +224,7 @@ lookup_distinct(const OptsVisitor *ov, const char *name, Error **errp)
}
static void
static bool
opts_start_list(Visitor *v, const char *name, GenericList **list, size_t size,
Error **errp)
{
@@ -232,12 +235,13 @@ opts_start_list(Visitor *v, const char *name, GenericList **list, size_t size,
/* we don't support visits without a list */
assert(list);
ov->repeated_opts = lookup_distinct(ov, name, errp);
if (ov->repeated_opts) {
ov->list_mode = LM_IN_PROGRESS;
*list = g_malloc0(size);
} else {
if (!ov->repeated_opts) {
*list = NULL;
return false;
}
ov->list_mode = LM_IN_PROGRESS;
*list = g_malloc0(size);
return true;
}
@@ -285,13 +289,14 @@ opts_next_list(Visitor *v, GenericList *tail, size_t size)
}
static void
static bool
opts_check_list(Visitor *v, Error **errp)
{
/*
* Unvisited list elements will be reported later when checking
* whether unvisited struct members remain.
*/
return true;
}
@@ -341,7 +346,7 @@ processed(OptsVisitor *ov, const char *name)
}
static void
static bool
opts_type_str(Visitor *v, const char *name, char **obj, Error **errp)
{
OptsVisitor *ov = to_ov(v);
@@ -350,7 +355,7 @@ opts_type_str(Visitor *v, const char *name, char **obj, Error **errp)
opt = lookup_scalar(ov, name, errp);
if (!opt) {
*obj = NULL;
return;
return false;
}
*obj = g_strdup(opt->str ? opt->str : "");
/* Note that we consume a string even if this is called as part of
@@ -359,11 +364,12 @@ opts_type_str(Visitor *v, const char *name, char **obj, Error **errp)
* consumed only matters to visit_end_struct() as the final error
* check if there were no other failures during the visit. */
processed(ov, name);
return true;
}
/* mimics qemu-option.c::parse_option_bool() */
static void
static bool
opts_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
{
OptsVisitor *ov = to_ov(v);
@@ -371,7 +377,7 @@ opts_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
opt = lookup_scalar(ov, name, errp);
if (!opt) {
return;
return false;
}
if (opt->str) {
@@ -386,17 +392,18 @@ opts_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
} else {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
"on|yes|y|off|no|n");
return;
return false;
}
} else {
*obj = true;
}
processed(ov, name);
return true;
}
static void
static bool
opts_type_int64(Visitor *v, const char *name, int64_t *obj, Error **errp)
{
OptsVisitor *ov = to_ov(v);
@@ -407,12 +414,12 @@ opts_type_int64(Visitor *v, const char *name, int64_t *obj, Error **errp)
if (ov->list_mode == LM_SIGNED_INTERVAL) {
*obj = ov->range_next.s;
return;
return true;
}
opt = lookup_scalar(ov, name, errp);
if (!opt) {
return;
return false;
}
str = opt->str ? opt->str : "";
@@ -425,7 +432,7 @@ opts_type_int64(Visitor *v, const char *name, int64_t *obj, Error **errp)
if (*endptr == '\0') {
*obj = val;
processed(ov, name);
return;
return true;
}
if (*endptr == '-' && ov->list_mode == LM_IN_PROGRESS) {
long long val2;
@@ -442,17 +449,18 @@ opts_type_int64(Visitor *v, const char *name, int64_t *obj, Error **errp)
/* as if entering on the top */
*obj = ov->range_next.s;
return;
return true;
}
}
}
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
(ov->list_mode == LM_NONE) ? "an int64 value" :
"an int64 value or range");
return false;
}
static void
static bool
opts_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp)
{
OptsVisitor *ov = to_ov(v);
@@ -463,12 +471,12 @@ opts_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp)
if (ov->list_mode == LM_UNSIGNED_INTERVAL) {
*obj = ov->range_next.u;
return;
return true;
}
opt = lookup_scalar(ov, name, errp);
if (!opt) {
return;
return false;
}
str = opt->str;
@@ -479,7 +487,7 @@ opts_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp)
if (*endptr == '\0') {
*obj = val;
processed(ov, name);
return;
return true;
}
if (*endptr == '-' && ov->list_mode == LM_IN_PROGRESS) {
unsigned long long val2;
@@ -494,17 +502,18 @@ opts_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp)
/* as if entering on the top */
*obj = ov->range_next.u;
return;
return true;
}
}
}
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
(ov->list_mode == LM_NONE) ? "a uint64 value" :
"a uint64 value or range");
return false;
}
static void
static bool
opts_type_size(Visitor *v, const char *name, uint64_t *obj, Error **errp)
{
OptsVisitor *ov = to_ov(v);
@@ -513,17 +522,18 @@ opts_type_size(Visitor *v, const char *name, uint64_t *obj, Error **errp)
opt = lookup_scalar(ov, name, errp);
if (!opt) {
return;
return false;
}
err = qemu_strtosz(opt->str ? opt->str : "", NULL, obj);
if (err < 0) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
"a size value");
return;
return false;
}
processed(ov, name);
return true;
}

69
qapi/qapi-clone-visitor.c
View File

@@ -24,7 +24,7 @@ static QapiCloneVisitor *to_qcv(Visitor *v)
return container_of(v, QapiCloneVisitor, visitor);
}
static void qapi_clone_start_struct(Visitor *v, const char *name, void **obj,
static bool qapi_clone_start_struct(Visitor *v, const char *name, void **obj,
size_t size, Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
@@ -34,11 +34,12 @@ static void qapi_clone_start_struct(Visitor *v, const char *name, void **obj,
/* Only possible when visiting an alternate's object
* branch. Nothing further to do here, since the earlier
* visit_start_alternate() already copied memory. */
return;
return true;
}
*obj = g_memdup(*obj, size);
qcv->depth++;
return true;
}
static void qapi_clone_end(Visitor *v, void **obj)
@@ -51,11 +52,11 @@ static void qapi_clone_end(Visitor *v, void **obj)
}
}
static void qapi_clone_start_list(Visitor *v, const char *name,
static bool qapi_clone_start_list(Visitor *v, const char *name,
GenericList **listp, size_t size,
Error **errp)
{
qapi_clone_start_struct(v, name, (void **)listp, size, errp);
return qapi_clone_start_struct(v, name, (void **)listp, size, errp);
}
static GenericList *qapi_clone_next_list(Visitor *v, GenericList *tail,
@@ -69,45 +70,48 @@ static GenericList *qapi_clone_next_list(Visitor *v, GenericList *tail,
return tail->next;
}
static void qapi_clone_start_alternate(Visitor *v, const char *name,
static bool qapi_clone_start_alternate(Visitor *v, const char *name,
GenericAlternate **obj, size_t size,
Error **errp)
{
qapi_clone_start_struct(v, name, (void **)obj, size, errp);
return qapi_clone_start_struct(v, name, (void **)obj, size, errp);
}
static void qapi_clone_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
/* Value was already cloned by g_memdup() */
}
static void qapi_clone_type_uint64(Visitor *v, const char *name,
uint64_t *obj, Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
/* Value was already cloned by g_memdup() */
}
static void qapi_clone_type_bool(Visitor *v, const char *name, bool *obj,
static bool qapi_clone_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
/* Value was already cloned by g_memdup() */
return true;
}
static void qapi_clone_type_str(Visitor *v, const char *name, char **obj,
static bool qapi_clone_type_uint64(Visitor *v, const char *name,
uint64_t *obj, Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
/* Value was already cloned by g_memdup() */
return true;
}
static bool qapi_clone_type_bool(Visitor *v, const char *name, bool *obj,
Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
/* Value was already cloned by g_memdup() */
return true;
}
static bool qapi_clone_type_str(Visitor *v, const char *name, char **obj,
Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
/*
* Pointer was already cloned by g_memdup; create fresh copy.
@@ -117,24 +121,27 @@ static void qapi_clone_type_str(Visitor *v, const char *name, char **obj,
* string is intended.
*/
*obj = g_strdup(*obj ?: "");
return true;
}
static void qapi_clone_type_number(Visitor *v, const char *name, double *obj,
Error **errp)
static bool qapi_clone_type_number(Visitor *v, const char *name, double *obj,
Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
/* Value was already cloned by g_memdup() */
return true;
}
static void qapi_clone_type_null(Visitor *v, const char *name, QNull **obj,
static bool qapi_clone_type_null(Visitor *v, const char *name, QNull **obj,
Error **errp)
{
QapiCloneVisitor *qcv = to_qcv(v);
assert(qcv->depth);
*obj = qnull();
return true;
}
static void qapi_clone_free(Visitor *v)
@@ -167,7 +174,7 @@ static Visitor *qapi_clone_visitor_new(void)
return &v->visitor;
}
void *qapi_clone(const void *src, void (*visit_type)(Visitor *, const char *,
void *qapi_clone(const void *src, bool (*visit_type)(Visitor *, const char *,
void **, Error **))
{
Visitor *v;
@@ -184,7 +191,7 @@ void *qapi_clone(const void *src, void (*visit_type)(Visitor *, const char *,
}
void qapi_clone_members(void *dst, const void *src, size_t sz,
void (*visit_type_members)(Visitor *, void *,
bool (*visit_type_members)(Visitor *, void *,
Error **))
{
Visitor *v;

27
qapi/qapi-dealloc-visitor.c
View File

@@ -22,9 +22,10 @@ struct QapiDeallocVisitor
Visitor visitor;
};
static void qapi_dealloc_start_struct(Visitor *v, const char *name, void **obj,
static bool qapi_dealloc_start_struct(Visitor *v, const char *name, void **obj,
size_t unused, Error **errp)
{
return true;
}
static void qapi_dealloc_end_struct(Visitor *v, void **obj)
@@ -41,10 +42,11 @@ static void qapi_dealloc_end_alternate(Visitor *v, void **obj)
}
}
static void qapi_dealloc_start_list(Visitor *v, const char *name,
static bool qapi_dealloc_start_list(Visitor *v, const char *name,
GenericList **list, size_t size,
Error **errp)
{
return true;
}
static GenericList *qapi_dealloc_next_list(Visitor *v, GenericList *tail,
@@ -59,48 +61,55 @@ static void qapi_dealloc_end_list(Visitor *v, void **obj)
{
}
static void qapi_dealloc_type_str(Visitor *v, const char *name, char **obj,
static bool qapi_dealloc_type_str(Visitor *v, const char *name, char **obj,
Error **errp)
{
if (obj) {
g_free(*obj);
}
return true;
}
static void qapi_dealloc_type_int64(Visitor *v, const char *name, int64_t *obj,
static bool qapi_dealloc_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
return true;
}
static void qapi_dealloc_type_uint64(Visitor *v, const char *name,
static bool qapi_dealloc_type_uint64(Visitor *v, const char *name,
uint64_t *obj, Error **errp)
{
return true;
}
static void qapi_dealloc_type_bool(Visitor *v, const char *name, bool *obj,
static bool qapi_dealloc_type_bool(Visitor *v, const char *name, bool *obj,
Error **errp)
{
return true;
}
static void qapi_dealloc_type_number(Visitor *v, const char *name, double *obj,
static bool qapi_dealloc_type_number(Visitor *v, const char *name, double *obj,
Error **errp)
{
return true;
}
static void qapi_dealloc_type_anything(Visitor *v, const char *name,
static bool qapi_dealloc_type_anything(Visitor *v, const char *name,
QObject **obj, Error **errp)
{
if (obj) {
qobject_unref(*obj);
}
return true;
}
static void qapi_dealloc_type_null(Visitor *v, const char *name,
static bool qapi_dealloc_type_null(Visitor *v, const char *name,
QNull **obj, Error **errp)
{
if (obj) {
qobject_unref(*obj);
}
return true;
}
static void qapi_dealloc_free(Visitor *v)

165
qapi/qapi-visit-core.c
View File

@@ -36,7 +36,7 @@ void visit_free(Visitor *v)
}
}
void visit_start_struct(Visitor *v, const char *name, void **obj,
bool visit_start_struct(Visitor *v, const char *name, void **obj,
size_t size, Error **errp)
{
Error *err = NULL;
@@ -51,14 +51,13 @@ void visit_start_struct(Visitor *v, const char *name, void **obj,
assert(!err != !*obj);
}
error_propagate(errp, err);
return !err;
}
void visit_check_struct(Visitor *v, Error **errp)
bool visit_check_struct(Visitor *v, Error **errp)
{
trace_visit_check_struct(v);
if (v->check_struct) {
v->check_struct(v, errp);
}
return v->check_struct ? v->check_struct(v, errp) : true;
}
void visit_end_struct(Visitor *v, void **obj)
@@ -67,7 +66,7 @@ void visit_end_struct(Visitor *v, void **obj)
v->end_struct(v, obj);
}
void visit_start_list(Visitor *v, const char *name, GenericList **list,
bool visit_start_list(Visitor *v, const char *name, GenericList **list,
size_t size, Error **errp)
{
Error *err = NULL;
@@ -79,6 +78,7 @@ void visit_start_list(Visitor *v, const char *name, GenericList **list,
assert(!(err && *list));
}
error_propagate(errp, err);
return !err;
}
GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size)
@@ -88,12 +88,10 @@ GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size)
return v->next_list(v, tail, size);
}
void visit_check_list(Visitor *v, Error **errp)
bool visit_check_list(Visitor *v, Error **errp)
{
trace_visit_check_list(v);
if (v->check_list) {
v->check_list(v, errp);
}
return v->check_list ? v->check_list(v, errp) : true;
}
void visit_end_list(Visitor *v, void **obj)
@@ -102,7 +100,7 @@ void visit_end_list(Visitor *v, void **obj)
v->end_list(v, obj);
}
void visit_start_alternate(Visitor *v, const char *name,
bool visit_start_alternate(Visitor *v, const char *name,
GenericAlternate **obj, size_t size,
Error **errp)
{
@@ -118,6 +116,7 @@ void visit_start_alternate(Visitor *v, const char *name,
assert(v->start_alternate && !err != !*obj);
}
error_propagate(errp, err);
return !err;
}
void visit_end_alternate(Visitor *v, void **obj)
@@ -147,155 +146,168 @@ bool visit_is_dealloc(Visitor *v)
return v->type == VISITOR_DEALLOC;
}
void visit_type_int(Visitor *v, const char *name, int64_t *obj, Error **errp)
bool visit_type_int(Visitor *v, const char *name, int64_t *obj, Error **errp)
{
assert(obj);
trace_visit_type_int(v, name, obj);
v->type_int64(v, name, obj, errp);
return v->type_int64(v, name, obj, errp);
}
static void visit_type_uintN(Visitor *v, uint64_t *obj, const char *name,
static bool visit_type_uintN(Visitor *v, uint64_t *obj, const char *name,
uint64_t max, const char *type, Error **errp)
{
Error *err = NULL;
uint64_t value = *obj;
assert(v->type == VISITOR_INPUT || value <= max);
v->type_uint64(v, name, &value, &err);
if (err) {
error_propagate(errp, err);
} else if (value > max) {
if (!v->type_uint64(v, name, &value, errp)) {
return false;
}
if (value > max) {
assert(v->type == VISITOR_INPUT);
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
name ? name : "null", type);
} else {
*obj = value;
return false;
}
*obj = value;
return true;
}
void visit_type_uint8(Visitor *v, const char *name, uint8_t *obj,
bool visit_type_uint8(Visitor *v, const char *name, uint8_t *obj,
Error **errp)
{
uint64_t value;
bool ok;
trace_visit_type_uint8(v, name, obj);
value = *obj;
visit_type_uintN(v, &value, name, UINT8_MAX, "uint8_t", errp);
ok = visit_type_uintN(v, &value, name, UINT8_MAX, "uint8_t", errp);
*obj = value;
return ok;
}
void visit_type_uint16(Visitor *v, const char *name, uint16_t *obj,
bool visit_type_uint16(Visitor *v, const char *name, uint16_t *obj,
Error **errp)
{
uint64_t value;
bool ok;
trace_visit_type_uint16(v, name, obj);
value = *obj;
visit_type_uintN(v, &value, name, UINT16_MAX, "uint16_t", errp);
ok = visit_type_uintN(v, &value, name, UINT16_MAX, "uint16_t", errp);
*obj = value;
return ok;
}
void visit_type_uint32(Visitor *v, const char *name, uint32_t *obj,
bool visit_type_uint32(Visitor *v, const char *name, uint32_t *obj,
Error **errp)
{
uint64_t value;
bool ok;
trace_visit_type_uint32(v, name, obj);
value = *obj;
visit_type_uintN(v, &value, name, UINT32_MAX, "uint32_t", errp);
ok = visit_type_uintN(v, &value, name, UINT32_MAX, "uint32_t", errp);
*obj = value;
return ok;
}
void visit_type_uint64(Visitor *v, const char *name, uint64_t *obj,
bool visit_type_uint64(Visitor *v, const char *name, uint64_t *obj,
Error **errp)
{
assert(obj);
trace_visit_type_uint64(v, name, obj);
v->type_uint64(v, name, obj, errp);
return v->type_uint64(v, name, obj, errp);
}
static void visit_type_intN(Visitor *v, int64_t *obj, const char *name,
static bool visit_type_intN(Visitor *v, int64_t *obj, const char *name,
int64_t min, int64_t max, const char *type,
Error **errp)
{
Error *err = NULL;
int64_t value = *obj;
assert(v->type == VISITOR_INPUT || (value >= min && value <= max));
v->type_int64(v, name, &value, &err);
if (err) {
error_propagate(errp, err);
} else if (value < min || value > max) {
if (!v->type_int64(v, name, &value, errp)) {
return false;
}
if (value < min || value > max) {
assert(v->type == VISITOR_INPUT);
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
name ? name : "null", type);
} else {
*obj = value;
return false;
}
*obj = value;
return true;
}
void visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp)
bool visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp)
{
int64_t value;
bool ok;
trace_visit_type_int8(v, name, obj);
value = *obj;
visit_type_intN(v, &value, name, INT8_MIN, INT8_MAX, "int8_t", errp);
ok = visit_type_intN(v, &value, name, INT8_MIN, INT8_MAX, "int8_t", errp);
*obj = value;
return ok;
}
void visit_type_int16(Visitor *v, const char *name, int16_t *obj,
bool visit_type_int16(Visitor *v, const char *name, int16_t *obj,
Error **errp)
{
int64_t value;
bool ok;
trace_visit_type_int16(v, name, obj);
value = *obj;
visit_type_intN(v, &value, name, INT16_MIN, INT16_MAX, "int16_t", errp);
ok = visit_type_intN(v, &value, name, INT16_MIN, INT16_MAX, "int16_t",
errp);
*obj = value;
return ok;
}
void visit_type_int32(Visitor *v, const char *name, int32_t *obj,
bool visit_type_int32(Visitor *v, const char *name, int32_t *obj,
Error **errp)
{
int64_t value;
bool ok;
trace_visit_type_int32(v, name, obj);
value = *obj;
visit_type_intN(v, &value, name, INT32_MIN, INT32_MAX, "int32_t", errp);
ok = visit_type_intN(v, &value, name, INT32_MIN, INT32_MAX, "int32_t",
errp);
*obj = value;
return ok;
}
void visit_type_int64(Visitor *v, const char *name, int64_t *obj,
bool visit_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
assert(obj);
trace_visit_type_int64(v, name, obj);
v->type_int64(v, name, obj, errp);
return v->type_int64(v, name, obj, errp);
}
void visit_type_size(Visitor *v, const char *name, uint64_t *obj,
bool visit_type_size(Visitor *v, const char *name, uint64_t *obj,
Error **errp)
{
assert(obj);
trace_visit_type_size(v, name, obj);
if (v->type_size) {
v->type_size(v, name, obj, errp);
} else {
v->type_uint64(v, name, obj, errp);
return v->type_size(v, name, obj, errp);
}
return v->type_uint64(v, name, obj, errp);
}
void visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
bool visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp)
{
assert(obj);
trace_visit_type_bool(v, name, obj);
v->type_bool(v, name, obj, errp);
return v->type_bool(v, name, obj, errp);
}
void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp)
bool visit_type_str(Visitor *v, const char *name, char **obj, Error **errp)
{
Error *err = NULL;
@@ -310,89 +322,88 @@ void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp)
assert(!err != !*obj);
}
error_propagate(errp, err);
return !err;
}
void visit_type_number(Visitor *v, const char *name, double *obj,
bool visit_type_number(Visitor *v, const char *name, double *obj,
Error **errp)
{
assert(obj);
trace_visit_type_number(v, name, obj);
v->type_number(v, name, obj, errp);
return v->type_number(v, name, obj, errp);
}
void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp)
bool visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp)
{
Error *err = NULL;
bool ok;
assert(obj);
assert(v->type != VISITOR_OUTPUT || *obj);
trace_visit_type_any(v, name, obj);
v->type_any(v, name, obj, &err);
ok = v->type_any(v, name, obj, errp);
if (v->type == VISITOR_INPUT) {
assert(!err != !*obj);
assert(ok != !*obj);
}
error_propagate(errp, err);
return ok;
}
void visit_type_null(Visitor *v, const char *name, QNull **obj,
bool visit_type_null(Visitor *v, const char *name, QNull **obj,
Error **errp)
{
trace_visit_type_null(v, name, obj);
v->type_null(v, name, obj, errp);
return v->type_null(v, name, obj, errp);
}
static void output_type_enum(Visitor *v, const char *name, int *obj,
static bool output_type_enum(Visitor *v, const char *name, int *obj,
const QEnumLookup *lookup, Error **errp)
{
int value = *obj;
char *enum_str;
enum_str = (char *)qapi_enum_lookup(lookup, value);
visit_type_str(v, name, &enum_str, errp);
return visit_type_str(v, name, &enum_str, errp);
}
static void input_type_enum(Visitor *v, const char *name, int *obj,
static bool input_type_enum(Visitor *v, const char *name, int *obj,
const QEnumLookup *lookup, Error **errp)
{
Error *local_err = NULL;
int64_t value;
char *enum_str;
visit_type_str(v, name, &enum_str, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
if (!visit_type_str(v, name, &enum_str, errp)) {
return false;
}
value = qapi_enum_parse(lookup, enum_str, -1, NULL);
if (value < 0) {
error_setg(errp, QERR_INVALID_PARAMETER, enum_str);
g_free(enum_str);
return;
return false;
}
g_free(enum_str);
*obj = value;
return true;
}
void visit_type_enum(Visitor *v, const char *name, int *obj,
bool visit_type_enum(Visitor *v, const char *name, int *obj,
const QEnumLookup *lookup, Error **errp)
{
assert(obj && lookup);
trace_visit_type_enum(v, name, obj);
switch (v->type) {
case VISITOR_INPUT:
input_type_enum(v, name, obj, lookup, errp);
break;
return input_type_enum(v, name, obj, lookup, errp);
case VISITOR_OUTPUT:
output_type_enum(v, name, obj, lookup, errp);
break;
return output_type_enum(v, name, obj, lookup, errp);
case VISITOR_CLONE:
/* nothing further to do, scalar value was already copied by
* g_memdup() during visit_start_*() */
break;
return true;
case VISITOR_DEALLOC:
/* nothing to deallocate for a scalar */
break;
return true;
default:
abort();
}
}

109
qapi/qobject-input-visitor.c
View File

@@ -237,7 +237,7 @@ static const QListEntry *qobject_input_push(QObjectInputVisitor *qiv,
}
static void qobject_input_check_struct(Visitor *v, Error **errp)
static bool qobject_input_check_struct(Visitor *v, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
StackObject *tos = QSLIST_FIRST(&qiv->stack);
@@ -250,7 +250,9 @@ static void qobject_input_check_struct(Visitor *v, Error **errp)
if (g_hash_table_iter_next(&iter, (void **)&key, NULL)) {
error_setg(errp, "Parameter '%s' is unexpected",
full_name(qiv, key));
return false;
}
return true;
}
static void qobject_input_stack_object_free(StackObject *tos)
@@ -272,7 +274,7 @@ static void qobject_input_pop(Visitor *v, void **obj)
qobject_input_stack_object_free(tos);
}
static void qobject_input_start_struct(Visitor *v, const char *name, void **obj,
static bool qobject_input_start_struct(Visitor *v, const char *name, void **obj,
size_t size, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -282,12 +284,12 @@ static void qobject_input_start_struct(Visitor *v, const char *name, void **obj,
*obj = NULL;
}
if (!qobj) {
return;
return false;
}
if (qobject_type(qobj) != QTYPE_QDICT) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "object");
return;
return false;
}
qobject_input_push(qiv, name, qobj, obj);
@@ -295,6 +297,7 @@ static void qobject_input_start_struct(Visitor *v, const char *name, void **obj,
if (obj) {
*obj = g_malloc0(size);
}
return true;
}
static void qobject_input_end_struct(Visitor *v, void **obj)
@@ -307,7 +310,7 @@ static void qobject_input_end_struct(Visitor *v, void **obj)
}
static void qobject_input_start_list(Visitor *v, const char *name,
static bool qobject_input_start_list(Visitor *v, const char *name,
GenericList **list, size_t size,
Error **errp)
{
@@ -319,18 +322,19 @@ static void qobject_input_start_list(Visitor *v, const char *name,
*list = NULL;
}
if (!qobj) {
return;
return false;
}
if (qobject_type(qobj) != QTYPE_QLIST) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "array");
return;
return false;
}
entry = qobject_input_push(qiv, name, qobj, list);
if (entry && list) {
*list = g_malloc0(size);
}
return true;
}
static GenericList *qobject_input_next_list(Visitor *v, GenericList *tail,
@@ -348,7 +352,7 @@ static GenericList *qobject_input_next_list(Visitor *v, GenericList *tail,
return tail->next;
}
static void qobject_input_check_list(Visitor *v, Error **errp)
static bool qobject_input_check_list(Visitor *v, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
StackObject *tos = QSLIST_FIRST(&qiv->stack);
@@ -358,7 +362,9 @@ static void qobject_input_check_list(Visitor *v, Error **errp)
if (tos->entry) {
error_setg(errp, "Only %u list elements expected in %s",
tos->index + 1, full_name_nth(qiv, NULL, 1));
return false;
}
return true;
}
static void qobject_input_end_list(Visitor *v, void **obj)
@@ -370,7 +376,7 @@ static void qobject_input_end_list(Visitor *v, void **obj)
qobject_input_pop(v, obj);
}
static void qobject_input_start_alternate(Visitor *v, const char *name,
static bool qobject_input_start_alternate(Visitor *v, const char *name,
GenericAlternate **obj, size_t size,
Error **errp)
{
@@ -379,13 +385,14 @@ static void qobject_input_start_alternate(Visitor *v, const char *name,
if (!qobj) {
*obj = NULL;
return;
return false;
}
*obj = g_malloc0(size);
(*obj)->type = qobject_type(qobj);
return true;
}
static void qobject_input_type_int64(Visitor *v, const char *name, int64_t *obj,
static bool qobject_input_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -393,33 +400,37 @@ static void qobject_input_type_int64(Visitor *v, const char *name, int64_t *obj,
QNum *qnum;
if (!qobj) {
return;
return false;
}
qnum = qobject_to(QNum, qobj);
if (!qnum || !qnum_get_try_int(qnum, obj)) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "integer");
return false;
}
return true;
}
static void qobject_input_type_int64_keyval(Visitor *v, const char *name,
static bool qobject_input_type_int64_keyval(Visitor *v, const char *name,
int64_t *obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
const char *str = qobject_input_get_keyval(qiv, name, errp);
if (!str) {
return;
return false;
}
if (qemu_strtoi64(str, NULL, 0, obj) < 0) {
/* TODO report -ERANGE more nicely */
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
full_name(qiv, name), "integer");
return false;
}
return true;
}
static void qobject_input_type_uint64(Visitor *v, const char *name,
static bool qobject_input_type_uint64(Visitor *v, const char *name,
uint64_t *obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -428,7 +439,7 @@ static void qobject_input_type_uint64(Visitor *v, const char *name,
int64_t val;
if (!qobj) {
return;
return false;
}
qnum = qobject_to(QNum, qobj);
if (!qnum) {
@@ -436,38 +447,41 @@ static void qobject_input_type_uint64(Visitor *v, const char *name,
}
if (qnum_get_try_uint(qnum, obj)) {
return;
return true;
}
/* Need to accept negative values for backward compatibility */
if (qnum_get_try_int(qnum, &val)) {
*obj = val;
return;
return true;
}
err:
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
full_name(qiv, name), "uint64");
return false;
}
static void qobject_input_type_uint64_keyval(Visitor *v, const char *name,
static bool qobject_input_type_uint64_keyval(Visitor *v, const char *name,
uint64_t *obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
const char *str = qobject_input_get_keyval(qiv, name, errp);
if (!str) {
return;
return false;
}
if (qemu_strtou64(str, NULL, 0, obj) < 0) {
/* TODO report -ERANGE more nicely */
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
full_name(qiv, name), "integer");
return false;
}
return true;
}
static void qobject_input_type_bool(Visitor *v, const char *name, bool *obj,
static bool qobject_input_type_bool(Visitor *v, const char *name, bool *obj,
Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -475,26 +489,27 @@ static void qobject_input_type_bool(Visitor *v, const char *name, bool *obj,
QBool *qbool;
if (!qobj) {
return;
return false;
}
qbool = qobject_to(QBool, qobj);
if (!qbool) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "boolean");
return;
return false;
}
*obj = qbool_get_bool(qbool);
return true;
}
static void qobject_input_type_bool_keyval(Visitor *v, const char *name,
static bool qobject_input_type_bool_keyval(Visitor *v, const char *name,
bool *obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
const char *str = qobject_input_get_keyval(qiv, name, errp);
if (!str) {
return;
return false;
}
if (!strcmp(str, "on")) {
@@ -504,10 +519,12 @@ static void qobject_input_type_bool_keyval(Visitor *v, const char *name,
} else {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
full_name(qiv, name), "'on' or 'off'");
return false;
}
return true;
}
static void qobject_input_type_str(Visitor *v, const char *name, char **obj,
static bool qobject_input_type_str(Visitor *v, const char *name, char **obj,
Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -516,28 +533,30 @@ static void qobject_input_type_str(Visitor *v, const char *name, char **obj,
*obj = NULL;
if (!qobj) {
return;
return false;
}
qstr = qobject_to(QString, qobj);
if (!qstr) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "string");
return;
return false;
}
*obj = g_strdup(qstring_get_str(qstr));
return true;
}
static void qobject_input_type_str_keyval(Visitor *v, const char *name,
static bool qobject_input_type_str_keyval(Visitor *v, const char *name,
char **obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
const char *str = qobject_input_get_keyval(qiv, name, errp);
*obj = g_strdup(str);
return !!str;
}
static void qobject_input_type_number(Visitor *v, const char *name, double *obj,
static bool qobject_input_type_number(Visitor *v, const char *name, double *obj,
Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -545,19 +564,20 @@ static void qobject_input_type_number(Visitor *v, const char *name, double *obj,
QNum *qnum;
if (!qobj) {
return;
return false;
}
qnum = qobject_to(QNum, qobj);
if (!qnum) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "number");
return;
return false;
}
*obj = qnum_get_double(qnum);
return true;
}
static void qobject_input_type_number_keyval(Visitor *v, const char *name,
static bool qobject_input_type_number_keyval(Visitor *v, const char *name,
double *obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -565,20 +585,21 @@ static void qobject_input_type_number_keyval(Visitor *v, const char *name,
double val;
if (!str) {
return;
return false;
}
if (qemu_strtod_finite(str, NULL, &val)) {
/* TODO report -ERANGE more nicely */
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "number");
return;
return false;
}
*obj = val;
return true;
}
static void qobject_input_type_any(Visitor *v, const char *name, QObject **obj,
static bool qobject_input_type_any(Visitor *v, const char *name, QObject **obj,
Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -586,13 +607,14 @@ static void qobject_input_type_any(Visitor *v, const char *name, QObject **obj,
*obj = NULL;
if (!qobj) {
return;
return false;
}
*obj = qobject_ref(qobj);
return true;
}
static void qobject_input_type_null(Visitor *v, const char *name,
static bool qobject_input_type_null(Visitor *v, const char *name,
QNull **obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
@@ -600,32 +622,35 @@ static void qobject_input_type_null(Visitor *v, const char *name,
*obj = NULL;
if (!qobj) {
return;
return false;
}
if (qobject_type(qobj) != QTYPE_QNULL) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
full_name(qiv, name), "null");
return;
return false;
}
*obj = qnull();
return true;
}
static void qobject_input_type_size_keyval(Visitor *v, const char *name,
static bool qobject_input_type_size_keyval(Visitor *v, const char *name,
uint64_t *obj, Error **errp)
{
QObjectInputVisitor *qiv = to_qiv(v);
const char *str = qobject_input_get_keyval(qiv, name, errp);
if (!str) {
return;
return false;
}
if (qemu_strtosz(str, NULL, obj) < 0) {
/* TODO report -ERANGE more nicely */
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
full_name(qiv, name), "size");
return false;
}
return true;
}
static void qobject_input_optional(Visitor *v, const char *name, bool *present)

27
qapi/qobject-output-visitor.c
View File

@@ -103,7 +103,7 @@ static void qobject_output_add_obj(QObjectOutputVisitor *qov, const char *name,
}
}
static void qobject_output_start_struct(Visitor *v, const char *name,
static bool qobject_output_start_struct(Visitor *v, const char *name,
void **obj, size_t unused, Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
@@ -111,6 +111,7 @@ static void qobject_output_start_struct(Visitor *v, const char *name,
qobject_output_add(qov, name, dict);
qobject_output_push(qov, dict, obj);
return true;
}
static void qobject_output_end_struct(Visitor *v, void **obj)
@@ -120,7 +121,7 @@ static void qobject_output_end_struct(Visitor *v, void **obj)
assert(qobject_type(value) == QTYPE_QDICT);
}
static void qobject_output_start_list(Visitor *v, const char *name,
static bool qobject_output_start_list(Visitor *v, const char *name,
GenericList **listp, size_t size,
Error **errp)
{
@@ -129,6 +130,7 @@ static void qobject_output_start_list(Visitor *v, const char *name,
qobject_output_add(qov, name, list);
qobject_output_push(qov, list, listp);
return true;
}
static GenericList *qobject_output_next_list(Visitor *v, GenericList *tail,
@@ -144,28 +146,31 @@ static void qobject_output_end_list(Visitor *v, void **obj)
assert(qobject_type(value) == QTYPE_QLIST);
}
static void qobject_output_type_int64(Visitor *v, const char *name,
static bool qobject_output_type_int64(Visitor *v, const char *name,
int64_t *obj, Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
qobject_output_add(qov, name, qnum_from_int(*obj));
return true;
}
static void qobject_output_type_uint64(Visitor *v, const char *name,
static bool qobject_output_type_uint64(Visitor *v, const char *name,
uint64_t *obj, Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
qobject_output_add(qov, name, qnum_from_uint(*obj));
return true;
}
static void qobject_output_type_bool(Visitor *v, const char *name, bool *obj,
static bool qobject_output_type_bool(Visitor *v, const char *name, bool *obj,
Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
qobject_output_add(qov, name, qbool_from_bool(*obj));
return true;
}
static void qobject_output_type_str(Visitor *v, const char *name, char **obj,
static bool qobject_output_type_str(Visitor *v, const char *name, char **obj,
Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
@@ -174,28 +179,32 @@ static void qobject_output_type_str(Visitor *v, const char *name, char **obj,
} else {
qobject_output_add(qov, name, qstring_from_str(""));
}
return true;
}
static void qobject_output_type_number(Visitor *v, const char *name,
static bool qobject_output_type_number(Visitor *v, const char *name,
double *obj, Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
qobject_output_add(qov, name, qnum_from_double(*obj));
return true;
}
static void qobject_output_type_any(Visitor *v, const char *name,
static bool qobject_output_type_any(Visitor *v, const char *name,
QObject **obj, Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
qobject_output_add_obj(qov, name, qobject_ref(*obj));
return true;
}
static void qobject_output_type_null(Visitor *v, const char *name,
static bool qobject_output_type_null(Visitor *v, const char *name,
QNull **obj, Error **errp)
{
QObjectOutputVisitor *qov = to_qov(v);
qobject_output_add(qov, name, qnull());
return true;
}
/* Finish building, and return the root object.

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)

32
qapi/string-output-visitor.c
View File

@@ -123,7 +123,7 @@ static void format_string(StringOutputVisitor *sov, Range *r, bool next,
}
}
static void print_type_int64(Visitor *v, const char *name, int64_t *obj,
static bool print_type_int64(Visitor *v, const char *name, int64_t *obj,
Error **errp)
{
StringOutputVisitor *sov = to_sov(v);
@@ -138,7 +138,7 @@ static void print_type_int64(Visitor *v, const char *name, int64_t *obj,
sov->range_start.s = *obj;
sov->range_end.s = *obj;
sov->list_mode = LM_IN_PROGRESS;
return;
return true;
case LM_IN_PROGRESS:
if (sov->range_end.s + 1 == *obj) {
@@ -155,7 +155,7 @@ static void print_type_int64(Visitor *v, const char *name, int64_t *obj,
sov->range_start.s = *obj;
sov->range_end.s = *obj;
}
return;
return true;
case LM_END:
if (sov->range_end.s + 1 == *obj) {
@@ -197,17 +197,19 @@ static void print_type_int64(Visitor *v, const char *name, int64_t *obj,
}
g_string_append(sov->string, ")");
}
return true;
}
static void print_type_uint64(Visitor *v, const char *name, uint64_t *obj,
static bool print_type_uint64(Visitor *v, const char *name, uint64_t *obj,
Error **errp)
{
/* FIXME: print_type_int64 mishandles values over INT64_MAX */
int64_t i = *obj;
print_type_int64(v, name, &i, errp);
return print_type_int64(v, name, &i, errp);
}
static void print_type_size(Visitor *v, const char *name, uint64_t *obj,
static bool print_type_size(Visitor *v, const char *name, uint64_t *obj,
Error **errp)
{
StringOutputVisitor *sov = to_sov(v);
@@ -217,7 +219,7 @@ static void print_type_size(Visitor *v, const char *name, uint64_t *obj,
if (!sov->human) {
out = g_strdup_printf("%"PRIu64, *obj);
string_output_set(sov, out);
return;
return true;
}
val = *obj;
@@ -226,16 +228,18 @@ static void print_type_size(Visitor *v, const char *name, uint64_t *obj,
string_output_set(sov, out);
g_free(psize);
return true;
}
static void print_type_bool(Visitor *v, const char *name, bool *obj,
static bool print_type_bool(Visitor *v, const char *name, bool *obj,
Error **errp)
{
StringOutputVisitor *sov = to_sov(v);
string_output_set(sov, g_strdup(*obj ? "true" : "false"));
return true;
}
static void print_type_str(Visitor *v, const char *name, char **obj,
static bool print_type_str(Visitor *v, const char *name, char **obj,
Error **errp)
{
StringOutputVisitor *sov = to_sov(v);
@@ -247,16 +251,18 @@ static void print_type_str(Visitor *v, const char *name, char **obj,
out = g_strdup(*obj ? *obj : "");
}
string_output_set(sov, out);
return true;
}
static void print_type_number(Visitor *v, const char *name, double *obj,
static bool print_type_number(Visitor *v, const char *name, double *obj,
Error **errp)
{
StringOutputVisitor *sov = to_sov(v);
string_output_set(sov, g_strdup_printf("%f", *obj));
return true;
}
static void print_type_null(Visitor *v, const char *name, QNull **obj,
static bool print_type_null(Visitor *v, const char *name, QNull **obj,
Error **errp)
{
StringOutputVisitor *sov = to_sov(v);
@@ -268,9 +274,10 @@ static void print_type_null(Visitor *v, const char *name, QNull **obj,
out = g_strdup("");
}
string_output_set(sov, out);
return true;
}
static void
static bool
start_list(Visitor *v, const char *name, GenericList **list, size_t size,
Error **errp)
{
@@ -285,6 +292,7 @@ start_list(Visitor *v, const char *name, GenericList **list, size_t size,
if (*list && (*list)->next) {
sov->list_mode = LM_STARTED;
}
return true;
}
static GenericList *next_list(Visitor *v, GenericList *tail, size_t size)

58
scripts/qapi/visit.py
View File

@@ -23,7 +23,7 @@ def gen_visit_decl(name, scalar=False):
if not scalar:
c_type += '*'
return mcgen('''
void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_type)sobj, Error **errp);
bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_type)sobj, Error **errp);
''',
c_name=c_name(name), c_type=c_type)
@@ -31,7 +31,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_type)sobj, Error **
def gen_visit_members_decl(name):
return mcgen('''
void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp);
bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp);
''',
c_name=c_name(name))
@@ -39,7 +39,7 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp);
def gen_visit_object_members(name, base, members, variants):
ret = mcgen('''
void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
{
Error *err = NULL;
@@ -48,9 +48,8 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
if base:
ret += mcgen('''
visit_type_%(c_type)s_members(v, (%(c_type)s *)obj, &err);
if (err) {
goto out;
if (!visit_type_%(c_type)s_members(v, (%(c_type)s *)obj, errp)) {
return false;
}
''',
c_type=base.c_name())
@@ -64,9 +63,8 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
name=memb.name, c_name=c_name(memb.name))
push_indent()
ret += mcgen('''
visit_type_%(c_type)s(v, "%(name)s", &obj->%(c_name)s, &err);
if (err) {
goto out;
if (!visit_type_%(c_type)s(v, "%(name)s", &obj->%(c_name)s, errp)) {
return false;
}
''',
c_type=memb.type.c_name(), name=memb.name,
@@ -112,15 +110,9 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
}
''')
# 'goto out' produced for base, for each member, and if variants were
# present
if base or members or variants:
ret += mcgen('''
out:
''')
ret += mcgen('''
error_propagate(errp, err);
return !err;
}
''')
return ret
@@ -129,15 +121,14 @@ out:
def gen_visit_list(name, element_type):
return mcgen('''
void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp)
bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp)
{
Error *err = NULL;
%(c_name)s *tail;
size_t size = sizeof(**obj);
visit_start_list(v, name, (GenericList **)obj, size, &err);
if (err) {
goto out;
if (!visit_start_list(v, name, (GenericList **)obj, size, errp)) {
return false;
}
for (tail = *obj; tail;
@@ -156,8 +147,8 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error
qapi_free_%(c_name)s(*obj);
*obj = NULL;
}
out:
error_propagate(errp, err);
return !err;
}
''',
c_name=c_name(name), c_elt_type=element_type.c_name())
@@ -166,11 +157,12 @@ out:
def gen_visit_enum(name):
return mcgen('''
void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s *obj, Error **errp)
bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s *obj, Error **errp)
{
int value = *obj;
visit_type_enum(v, name, &value, &%(c_name)s_lookup, errp);
bool ok = visit_type_enum(v, name, &value, &%(c_name)s_lookup, errp);
*obj = value;
return ok;
}
''',
c_name=c_name(name))
@@ -179,14 +171,13 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s *obj, Error
def gen_visit_alternate(name, variants):
ret = mcgen('''
void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp)
bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp)
{
Error *err = NULL;
visit_start_alternate(v, name, (GenericAlternate **)obj, sizeof(**obj),
&err);
if (err) {
goto out;
if (!visit_start_alternate(v, name, (GenericAlternate **)obj,
sizeof(**obj), errp)) {
return false;
}
if (!*obj) {
/* incomplete */
@@ -245,8 +236,8 @@ out_obj:
qapi_free_%(c_name)s(*obj);
*obj = NULL;
}
out:
error_propagate(errp, err);
return !err;
}
''',
name=name, c_name=c_name(name))
@@ -257,13 +248,12 @@ out:
def gen_visit_object(name, base, members, variants):
return mcgen('''
void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp)
bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp)
{
Error *err = NULL;
visit_start_struct(v, name, (void **)obj, sizeof(%(c_name)s), &err);
if (err) {
goto out;
if (!visit_start_struct(v, name, (void **)obj, sizeof(%(c_name)s), errp)) {
return false;
}
if (!*obj) {
/* incomplete */
@@ -281,8 +271,8 @@ out_obj:
qapi_free_%(c_name)s(*obj);
*obj = NULL;
}
out:
error_propagate(errp, err);
return !err;
}
''',
c_name=c_name(name))