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authorMarkus Armbruster2020-06-22 11:42:20 +0200
committerMarkus Armbruster2020-06-23 16:07:07 +0200
commit466c2983f88b75c37d8bab0d68ca1a1ae15949a1 (patch)
treefc4c2817d21f0eb3976fc6897dbe2a27ce725720
parentblockdev: Deprecate -drive with bogus interface type (diff)
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qdev: Eliminate get_pointer(), set_pointer()
We stopped using get_pointer() and set_pointer() for netdev in commit 23120b13c6 "net: don't use set/get_pointer() in set/get_netdev()" (v2.3.0), and for chardev in commit becdfa00cf "char: replace PROP_CHR with CharBackend" (v2.8.0). With only the drive user left, they're not helpful anymore. Eliminate. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200622094227.1271650-10-armbru@redhat.com>
-rw-r--r--hw/core/qdev-properties-system.c95
1 files changed, 35 insertions, 60 deletions
diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c
index 70bfd4809b..9aa80495ee 100644
--- a/hw/core/qdev-properties-system.c
+++ b/hw/core/qdev-properties-system.c
@@ -25,29 +25,45 @@
#include "sysemu/iothread.h"
#include "sysemu/tpm_backend.h"
-static void get_pointer(Object *obj, Visitor *v, Property *prop,
- char *(*print)(void *ptr),
- const char *name, Error **errp)
+/* --- drive --- */
+
+static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
{
DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
void **ptr = qdev_get_prop_ptr(dev, prop);
+ const char *value;
char *p;
- p = *ptr ? print(*ptr) : g_strdup("");
+ if (*ptr) {
+ value = blk_name(*ptr);
+ if (!*value) {
+ BlockDriverState *bs = blk_bs(*ptr);
+ if (bs) {
+ value = bdrv_get_node_name(bs);
+ }
+ }
+ } else {
+ value = "";
+ }
+
+ p = g_strdup(value);
visit_type_str(v, name, &p, errp);
g_free(p);
}
-static void set_pointer(Object *obj, Visitor *v, Property *prop,
- void (*parse)(DeviceState *dev, const char *str,
- void **ptr, const char *propname,
- Error **errp),
- const char *name, Error **errp)
+static void set_drive_helper(Object *obj, Visitor *v, const char *name,
+ void *opaque, bool iothread, Error **errp)
{
DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
Error *local_err = NULL;
void **ptr = qdev_get_prop_ptr(dev, prop);
char *str;
+ BlockBackend *blk;
+ bool blk_created = false;
+ int ret;
if (dev->realized) {
qdev_prop_set_after_realize(dev, name, errp);
@@ -59,23 +75,12 @@ static void set_pointer(Object *obj, Visitor *v, Property *prop,
error_propagate(errp, local_err);
return;
}
+
if (!*str) {
g_free(str);
*ptr = NULL;
return;
}
- parse(dev, str, ptr, prop->name, errp);
- g_free(str);
-}
-
-/* --- drive --- */
-
-static void do_parse_drive(DeviceState *dev, const char *str, void **ptr,
- const char *propname, bool iothread, Error **errp)
-{
- BlockBackend *blk;
- bool blk_created = false;
- int ret;
blk = blk_by_name(str);
if (!blk) {
@@ -101,7 +106,7 @@ static void do_parse_drive(DeviceState *dev, const char *str, void **ptr,
}
if (!blk) {
error_setg(errp, "Property '%s.%s' can't find value '%s'",
- object_get_typename(OBJECT(dev)), propname, str);
+ object_get_typename(OBJECT(dev)), prop->name, str);
goto fail;
}
if (blk_attach_dev(blk, dev) < 0) {
@@ -126,18 +131,20 @@ fail:
/* If we need to keep a reference, blk_attach_dev() took it */
blk_unref(blk);
}
+
+ g_free(str);
}
-static void parse_drive(DeviceState *dev, const char *str, void **ptr,
- const char *propname, Error **errp)
+static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
{
- do_parse_drive(dev, str, ptr, propname, false, errp);
+ set_drive_helper(obj, v, name, opaque, false, errp);
}
-static void parse_drive_iothread(DeviceState *dev, const char *str, void **ptr,
- const char *propname, Error **errp)
+static void set_drive_iothread(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
{
- do_parse_drive(dev, str, ptr, propname, true, errp);
+ set_drive_helper(obj, v, name, opaque, true, errp);
}
static void release_drive(Object *obj, const char *name, void *opaque)
@@ -156,38 +163,6 @@ static void release_drive(Object *obj, const char *name, void *opaque)
}
}
-static char *print_drive(void *ptr)
-{
- const char *name;
-
- name = blk_name(ptr);
- if (!*name) {
- BlockDriverState *bs = blk_bs(ptr);
- if (bs) {
- name = bdrv_get_node_name(bs);
- }
- }
- return g_strdup(name);
-}
-
-static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque,
- Error **errp)
-{
- get_pointer(obj, v, opaque, print_drive, name, errp);
-}
-
-static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque,
- Error **errp)
-{
- set_pointer(obj, v, opaque, parse_drive, name, errp);
-}
-
-static void set_drive_iothread(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- set_pointer(obj, v, opaque, parse_drive_iothread, name, errp);
-}
-
const PropertyInfo qdev_prop_drive = {
.name = "str",
.description = "Node name or ID of a block device to use as a backend",