qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
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/*
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* Copyright (C) 2015 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#include <glib.h>
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#include "qom/object.h"
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#include "qemu/module.h"
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#define TYPE_DUMMY "qemu-dummy"
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typedef struct DummyObject DummyObject;
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typedef struct DummyObjectClass DummyObjectClass;
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#define DUMMY_OBJECT(obj) \
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OBJECT_CHECK(DummyObject, (obj), TYPE_DUMMY)
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qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
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typedef enum DummyAnimal DummyAnimal;
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enum DummyAnimal {
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DUMMY_FROG,
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DUMMY_ALLIGATOR,
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DUMMY_PLATYPUS,
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DUMMY_LAST,
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};
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static const char *const dummy_animal_map[DUMMY_LAST + 1] = {
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[DUMMY_FROG] = "frog",
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[DUMMY_ALLIGATOR] = "alligator",
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[DUMMY_PLATYPUS] = "platypus",
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[DUMMY_LAST] = NULL,
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};
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qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
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struct DummyObject {
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Object parent_obj;
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bool bv;
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qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
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DummyAnimal av;
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qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
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char *sv;
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};
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struct DummyObjectClass {
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ObjectClass parent_class;
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};
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static void dummy_set_bv(Object *obj,
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bool value,
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Error **errp)
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{
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DummyObject *dobj = DUMMY_OBJECT(obj);
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dobj->bv = value;
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}
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static bool dummy_get_bv(Object *obj,
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Error **errp)
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{
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DummyObject *dobj = DUMMY_OBJECT(obj);
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return dobj->bv;
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}
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qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
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static void dummy_set_av(Object *obj,
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int value,
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Error **errp)
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{
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DummyObject *dobj = DUMMY_OBJECT(obj);
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dobj->av = value;
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}
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static int dummy_get_av(Object *obj,
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Error **errp)
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{
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DummyObject *dobj = DUMMY_OBJECT(obj);
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return dobj->av;
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}
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qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
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static void dummy_set_sv(Object *obj,
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const char *value,
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Error **errp)
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{
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DummyObject *dobj = DUMMY_OBJECT(obj);
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g_free(dobj->sv);
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dobj->sv = g_strdup(value);
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}
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static char *dummy_get_sv(Object *obj,
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Error **errp)
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{
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DummyObject *dobj = DUMMY_OBJECT(obj);
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return g_strdup(dobj->sv);
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}
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static void dummy_init(Object *obj)
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{
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object_property_add_bool(obj, "bv",
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dummy_get_bv,
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dummy_set_bv,
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NULL);
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}
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2015-10-13 14:37:46 +02:00
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static void dummy_class_init(ObjectClass *cls, void *data)
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{
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object_class_property_add_bool(cls, "bv",
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dummy_get_bv,
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dummy_set_bv,
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NULL);
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object_class_property_add_str(cls, "sv",
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dummy_get_sv,
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dummy_set_sv,
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NULL);
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object_class_property_add_enum(cls, "av",
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"DummyAnimal",
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dummy_animal_map,
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dummy_get_av,
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dummy_set_av,
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NULL);
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}
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qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
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static void dummy_finalize(Object *obj)
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{
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DummyObject *dobj = DUMMY_OBJECT(obj);
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g_free(dobj->sv);
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}
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static const TypeInfo dummy_info = {
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.name = TYPE_DUMMY,
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.parent = TYPE_OBJECT,
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.instance_size = sizeof(DummyObject),
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.instance_init = dummy_init,
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.instance_finalize = dummy_finalize,
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.class_size = sizeof(DummyObjectClass),
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2015-10-13 14:37:46 +02:00
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.class_init = dummy_class_init,
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
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};
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|
2015-11-16 16:37:34 +01:00
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/*
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* The following 3 object classes are used to
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* simulate the kind of relationships seen in
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* qdev, which result in complex object
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* property destruction ordering.
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*
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* DummyDev has a 'bus' child to a DummyBus
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* DummyBus has a 'backend' child to a DummyBackend
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* DummyDev has a 'backend' link to DummyBackend
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*
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* When DummyDev is finalized, it unparents the
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|
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* DummyBackend, which unparents the DummyDev
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* which deletes the 'backend' link from DummyDev
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|
* to DummyBackend. This illustrates that the
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* object_property_del_all() method needs to
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|
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* cope with the list of properties being changed
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* while it iterates over them.
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*/
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|
typedef struct DummyDev DummyDev;
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|
|
typedef struct DummyDevClass DummyDevClass;
|
|
|
|
typedef struct DummyBus DummyBus;
|
|
|
|
typedef struct DummyBusClass DummyBusClass;
|
|
|
|
typedef struct DummyBackend DummyBackend;
|
|
|
|
typedef struct DummyBackendClass DummyBackendClass;
|
|
|
|
|
|
|
|
#define TYPE_DUMMY_DEV "qemu-dummy-dev"
|
|
|
|
#define TYPE_DUMMY_BUS "qemu-dummy-bus"
|
|
|
|
#define TYPE_DUMMY_BACKEND "qemu-dummy-backend"
|
|
|
|
|
|
|
|
#define DUMMY_DEV(obj) \
|
|
|
|
OBJECT_CHECK(DummyDev, (obj), TYPE_DUMMY_DEV)
|
|
|
|
#define DUMMY_BUS(obj) \
|
|
|
|
OBJECT_CHECK(DummyBus, (obj), TYPE_DUMMY_BUS)
|
|
|
|
#define DUMMY_BACKEND(obj) \
|
|
|
|
OBJECT_CHECK(DummyBackend, (obj), TYPE_DUMMY_BACKEND)
|
|
|
|
|
|
|
|
struct DummyDev {
|
|
|
|
Object parent_obj;
|
|
|
|
|
|
|
|
DummyBus *bus;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct DummyDevClass {
|
|
|
|
ObjectClass parent_class;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct DummyBus {
|
|
|
|
Object parent_obj;
|
|
|
|
|
|
|
|
DummyBackend *backend;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct DummyBusClass {
|
|
|
|
ObjectClass parent_class;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct DummyBackend {
|
|
|
|
Object parent_obj;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct DummyBackendClass {
|
|
|
|
ObjectClass parent_class;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static void dummy_dev_init(Object *obj)
|
|
|
|
{
|
|
|
|
DummyDev *dev = DUMMY_DEV(obj);
|
|
|
|
DummyBus *bus = DUMMY_BUS(object_new(TYPE_DUMMY_BUS));
|
|
|
|
DummyBackend *backend = DUMMY_BACKEND(object_new(TYPE_DUMMY_BACKEND));
|
|
|
|
|
|
|
|
object_property_add_child(obj, "bus", OBJECT(bus), NULL);
|
|
|
|
dev->bus = bus;
|
|
|
|
object_property_add_child(OBJECT(bus), "backend", OBJECT(backend), NULL);
|
|
|
|
bus->backend = backend;
|
|
|
|
|
|
|
|
object_property_add_link(obj, "backend", TYPE_DUMMY_BACKEND,
|
|
|
|
(Object **)&bus->backend, NULL, 0, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dummy_dev_unparent(Object *obj)
|
|
|
|
{
|
|
|
|
DummyDev *dev = DUMMY_DEV(obj);
|
|
|
|
object_unparent(OBJECT(dev->bus));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dummy_dev_class_init(ObjectClass *klass, void *opaque)
|
|
|
|
{
|
|
|
|
klass->unparent = dummy_dev_unparent;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dummy_bus_init(Object *obj)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dummy_bus_unparent(Object *obj)
|
|
|
|
{
|
|
|
|
DummyBus *bus = DUMMY_BUS(obj);
|
|
|
|
object_property_del(obj->parent, "backend", NULL);
|
|
|
|
object_unparent(OBJECT(bus->backend));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dummy_bus_class_init(ObjectClass *klass, void *opaque)
|
|
|
|
{
|
|
|
|
klass->unparent = dummy_bus_unparent;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dummy_backend_init(Object *obj)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const TypeInfo dummy_dev_info = {
|
|
|
|
.name = TYPE_DUMMY_DEV,
|
|
|
|
.parent = TYPE_OBJECT,
|
|
|
|
.instance_size = sizeof(DummyDev),
|
|
|
|
.instance_init = dummy_dev_init,
|
|
|
|
.class_size = sizeof(DummyDevClass),
|
|
|
|
.class_init = dummy_dev_class_init,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const TypeInfo dummy_bus_info = {
|
|
|
|
.name = TYPE_DUMMY_BUS,
|
|
|
|
.parent = TYPE_OBJECT,
|
|
|
|
.instance_size = sizeof(DummyBus),
|
|
|
|
.instance_init = dummy_bus_init,
|
|
|
|
.class_size = sizeof(DummyBusClass),
|
|
|
|
.class_init = dummy_bus_class_init,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const TypeInfo dummy_backend_info = {
|
|
|
|
.name = TYPE_DUMMY_BACKEND,
|
|
|
|
.parent = TYPE_OBJECT,
|
|
|
|
.instance_size = sizeof(DummyBackend),
|
|
|
|
.instance_init = dummy_backend_init,
|
|
|
|
.class_size = sizeof(DummyBackendClass),
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
static void test_dummy_createv(void)
|
|
|
|
{
|
|
|
|
Error *err = NULL;
|
|
|
|
Object *parent = object_get_objects_root();
|
|
|
|
DummyObject *dobj = DUMMY_OBJECT(
|
|
|
|
object_new_with_props(TYPE_DUMMY,
|
|
|
|
parent,
|
|
|
|
"dummy0",
|
|
|
|
&err,
|
|
|
|
"bv", "yes",
|
|
|
|
"sv", "Hiss hiss hiss",
|
qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
|
|
|
"av", "platypus",
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
NULL));
|
|
|
|
|
|
|
|
g_assert(err == NULL);
|
|
|
|
g_assert_cmpstr(dobj->sv, ==, "Hiss hiss hiss");
|
|
|
|
g_assert(dobj->bv == true);
|
qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
|
|
|
g_assert(dobj->av == DUMMY_PLATYPUS);
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
|
|
|
|
g_assert(object_resolve_path_component(parent, "dummy0")
|
|
|
|
== OBJECT(dobj));
|
|
|
|
|
|
|
|
object_unparent(OBJECT(dobj));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static Object *new_helper(Error **errp,
|
|
|
|
Object *parent,
|
|
|
|
...)
|
|
|
|
{
|
|
|
|
va_list vargs;
|
|
|
|
Object *obj;
|
|
|
|
|
|
|
|
va_start(vargs, parent);
|
|
|
|
obj = object_new_with_propv(TYPE_DUMMY,
|
|
|
|
parent,
|
|
|
|
"dummy0",
|
|
|
|
errp,
|
|
|
|
vargs);
|
|
|
|
va_end(vargs);
|
|
|
|
return obj;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void test_dummy_createlist(void)
|
|
|
|
{
|
|
|
|
Error *err = NULL;
|
|
|
|
Object *parent = object_get_objects_root();
|
|
|
|
DummyObject *dobj = DUMMY_OBJECT(
|
|
|
|
new_helper(&err,
|
|
|
|
parent,
|
|
|
|
"bv", "yes",
|
|
|
|
"sv", "Hiss hiss hiss",
|
qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
|
|
|
"av", "platypus",
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
NULL));
|
|
|
|
|
|
|
|
g_assert(err == NULL);
|
|
|
|
g_assert_cmpstr(dobj->sv, ==, "Hiss hiss hiss");
|
|
|
|
g_assert(dobj->bv == true);
|
qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
|
|
|
g_assert(dobj->av == DUMMY_PLATYPUS);
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
|
|
|
|
g_assert(object_resolve_path_component(parent, "dummy0")
|
|
|
|
== OBJECT(dobj));
|
|
|
|
|
|
|
|
object_unparent(OBJECT(dobj));
|
|
|
|
}
|
|
|
|
|
qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
|
|
|
static void test_dummy_badenum(void)
|
|
|
|
{
|
|
|
|
Error *err = NULL;
|
|
|
|
Object *parent = object_get_objects_root();
|
|
|
|
Object *dobj =
|
|
|
|
object_new_with_props(TYPE_DUMMY,
|
|
|
|
parent,
|
|
|
|
"dummy0",
|
|
|
|
&err,
|
|
|
|
"bv", "yes",
|
|
|
|
"sv", "Hiss hiss hiss",
|
|
|
|
"av", "yeti",
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
g_assert(dobj == NULL);
|
|
|
|
g_assert(err != NULL);
|
|
|
|
g_assert_cmpstr(error_get_pretty(err), ==,
|
|
|
|
"Invalid parameter 'yeti'");
|
|
|
|
|
|
|
|
g_assert(object_resolve_path_component(parent, "dummy0")
|
|
|
|
== NULL);
|
|
|
|
|
|
|
|
error_free(err);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2015-05-27 17:07:56 +02:00
|
|
|
static void test_dummy_getenum(void)
|
|
|
|
{
|
|
|
|
Error *err = NULL;
|
|
|
|
int val;
|
|
|
|
Object *parent = object_get_objects_root();
|
|
|
|
DummyObject *dobj = DUMMY_OBJECT(
|
|
|
|
object_new_with_props(TYPE_DUMMY,
|
|
|
|
parent,
|
|
|
|
"dummy0",
|
|
|
|
&err,
|
|
|
|
"av", "platypus",
|
|
|
|
NULL));
|
|
|
|
|
|
|
|
g_assert(err == NULL);
|
|
|
|
g_assert(dobj->av == DUMMY_PLATYPUS);
|
|
|
|
|
|
|
|
val = object_property_get_enum(OBJECT(dobj),
|
|
|
|
"av",
|
|
|
|
"DummyAnimal",
|
|
|
|
&err);
|
|
|
|
g_assert(err == NULL);
|
|
|
|
g_assert(val == DUMMY_PLATYPUS);
|
|
|
|
|
|
|
|
/* A bad enum type name */
|
|
|
|
val = object_property_get_enum(OBJECT(dobj),
|
|
|
|
"av",
|
|
|
|
"BadAnimal",
|
|
|
|
&err);
|
|
|
|
g_assert(err != NULL);
|
|
|
|
error_free(err);
|
|
|
|
err = NULL;
|
|
|
|
|
|
|
|
/* A non-enum property name */
|
|
|
|
val = object_property_get_enum(OBJECT(dobj),
|
|
|
|
"iv",
|
|
|
|
"DummyAnimal",
|
|
|
|
&err);
|
|
|
|
g_assert(err != NULL);
|
|
|
|
error_free(err);
|
2015-10-13 14:37:40 +02:00
|
|
|
|
|
|
|
object_unparent(OBJECT(dobj));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void test_dummy_iterator(void)
|
|
|
|
{
|
|
|
|
Object *parent = object_get_objects_root();
|
|
|
|
DummyObject *dobj = DUMMY_OBJECT(
|
|
|
|
object_new_with_props(TYPE_DUMMY,
|
|
|
|
parent,
|
|
|
|
"dummy0",
|
|
|
|
&error_abort,
|
|
|
|
"bv", "yes",
|
|
|
|
"sv", "Hiss hiss hiss",
|
|
|
|
"av", "platypus",
|
|
|
|
NULL));
|
|
|
|
|
|
|
|
ObjectProperty *prop;
|
|
|
|
ObjectPropertyIterator *iter;
|
|
|
|
bool seenbv = false, seensv = false, seenav = false, seentype;
|
|
|
|
|
|
|
|
iter = object_property_iter_init(OBJECT(dobj));
|
|
|
|
while ((prop = object_property_iter_next(iter))) {
|
|
|
|
if (g_str_equal(prop->name, "bv")) {
|
|
|
|
seenbv = true;
|
|
|
|
} else if (g_str_equal(prop->name, "sv")) {
|
|
|
|
seensv = true;
|
|
|
|
} else if (g_str_equal(prop->name, "av")) {
|
|
|
|
seenav = true;
|
|
|
|
} else if (g_str_equal(prop->name, "type")) {
|
|
|
|
/* This prop comes from the base Object class */
|
|
|
|
seentype = true;
|
|
|
|
} else {
|
|
|
|
g_printerr("Found prop '%s'\n", prop->name);
|
|
|
|
g_assert_not_reached();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
object_property_iter_free(iter);
|
|
|
|
g_assert(seenbv);
|
|
|
|
g_assert(seenav);
|
|
|
|
g_assert(seensv);
|
|
|
|
g_assert(seentype);
|
|
|
|
|
|
|
|
object_unparent(OBJECT(dobj));
|
2015-05-27 17:07:56 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2015-11-16 16:37:34 +01:00
|
|
|
static void test_dummy_delchild(void)
|
|
|
|
{
|
|
|
|
Object *parent = object_get_objects_root();
|
|
|
|
DummyDev *dev = DUMMY_DEV(
|
|
|
|
object_new_with_props(TYPE_DUMMY_DEV,
|
|
|
|
parent,
|
|
|
|
"dev0",
|
|
|
|
&error_abort,
|
|
|
|
NULL));
|
|
|
|
|
|
|
|
object_unparent(OBJECT(dev));
|
|
|
|
}
|
|
|
|
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
int main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
g_test_init(&argc, &argv, NULL);
|
|
|
|
|
|
|
|
module_call_init(MODULE_INIT_QOM);
|
|
|
|
type_register_static(&dummy_info);
|
2015-11-16 16:37:34 +01:00
|
|
|
type_register_static(&dummy_dev_info);
|
|
|
|
type_register_static(&dummy_bus_info);
|
|
|
|
type_register_static(&dummy_backend_info);
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
|
|
|
|
g_test_add_func("/qom/proplist/createlist", test_dummy_createlist);
|
|
|
|
g_test_add_func("/qom/proplist/createv", test_dummy_createv);
|
qom: Add an object_property_add_enum() helper function
A QOM property can be parsed as enum using the visit_type_enum()
helper function, but this forces callers to use the more complex
generic object_property_add() method when registering it. It
also requires that users of that object have access to the
string map when they want to read the property value.
This patch introduces a specialized object_property_add_enum()
method which simplifies the use of enum properties, so the
setters/getters directly get passed the int value.
typedef enum {
MYDEV_TYPE_FROG,
MYDEV_TYPE_ALLIGATOR,
MYDEV_TYPE_PLATYPUS,
MYDEV_TYPE_LAST
} MyDevType;
Then provide a table of enum <-> string mappings
static const char *const mydevtypemap[MYDEV_TYPE_LAST + 1] = {
[MYDEV_TYPE_FROG] = "frog",
[MYDEV_TYPE_ALLIGATOR] = "alligator",
[MYDEV_TYPE_PLATYPUS] = "platypus",
[MYDEV_TYPE_LAST] = NULL,
};
Assuming an object struct of
typedef struct {
Object parent_obj;
MyDevType devtype;
...other fields...
} MyDev;
The property can then be registered as follows:
static int mydev_prop_get_devtype(Object *obj,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
return dev->devtype;
}
static void mydev_prop_set_devtype(Object *obj,
int value,
Error **errp G_GNUC_UNUSED)
{
MyDev *dev = MYDEV(obj);
dev->devtype = value;
}
object_property_add_enum(obj, "devtype",
mydevtypemap, "MyDevType",
mydev_prop_get_devtype,
mydev_prop_set_devtype,
NULL);
Note there is no need to check the range of 'value' in
the setter, because the string->enum conversion code will
have already done that and reported an error as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:08 +02:00
|
|
|
g_test_add_func("/qom/proplist/badenum", test_dummy_badenum);
|
2015-05-27 17:07:56 +02:00
|
|
|
g_test_add_func("/qom/proplist/getenum", test_dummy_getenum);
|
2015-10-13 14:37:40 +02:00
|
|
|
g_test_add_func("/qom/proplist/iterator", test_dummy_iterator);
|
2015-11-16 16:37:34 +01:00
|
|
|
g_test_add_func("/qom/proplist/delchild", test_dummy_delchild);
|
qom: Add object_new_with_props() / object_new_withpropv() helpers
It is reasonably common to want to create an object, set a
number of properties, register it in the hierarchy and then
mark it as complete (if a user creatable type). This requires
quite a lot of error prone, verbose, boilerplate code to achieve.
First a pair of functions object_set_props() / object_set_propv()
are added which allow for a list of objects to be set in
one single API call.
Then object_new_with_props() / object_new_with_propv() constructors
are added which simplify the sequence of calls to create an
object, populate properties, register in the object composition
tree and mark the object complete, into a single method call.
Usage would be:
Error *err = NULL;
Object *obj;
obj = object_new_with_propv(TYPE_MEMORY_BACKEND_FILE,
object_get_objects_root(),
"hostmem0",
&err,
"share", "yes",
"mem-path", "/dev/shm/somefile",
"prealloc", "yes",
"size", "1048576",
NULL);
Note all property values are passed in string form and will
be parsed into their required data types, using normal QOM
semantics for parsing from string format.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-05-13 18:14:06 +02:00
|
|
|
|
|
|
|
return g_test_run();
|
|
|
|
}
|