motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-07-26 20:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

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();
}
}