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[Qemu-devel] [PATCH 1/2] qemu-help: Sort devices by logical functionalit
From: |
Marcel Apfelbaum |
Subject: |
[Qemu-devel] [PATCH 1/2] qemu-help: Sort devices by logical functionality |
Date: |
Sun, 28 Jul 2013 12:14:53 +0300 |
Categorize devices that appear as output to "-device ?" command
by logical functionality. Sort the devices by logical categories
before showing them to user.
The sort is done by functionality rather than alphabetical.
Signed-off-by: Marcel Apfelbaum <address@hidden>
---
Changes from RFC
Made category a bitmap to support multifunction PCI devices
include/hw/qdev-core.h | 15 ++++++++++++
qdev-monitor.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++--
2 files changed, 75 insertions(+), 2 deletions(-)
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 7fbffcb..9130f97 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -17,6 +17,19 @@ enum {
#define DEVICE_CLASS(klass) OBJECT_CLASS_CHECK(DeviceClass, (klass),
TYPE_DEVICE)
#define DEVICE_GET_CLASS(obj) OBJECT_GET_CLASS(DeviceClass, (obj), TYPE_DEVICE)
+#define MAX_DEVICE_CATEGORY 8
+
+typedef enum DeviceCategory {
+ DEVICE_CATEGORY_ASSEMBLY,
+ DEVICE_CATEGORY_MANAGEMENT,
+ DEVICE_CATEGORY_STORAGE,
+ DEVICE_CATEGORY_NETWORK,
+ DEVICE_CATEGORY_INPUT,
+ DEVICE_CATEGORY_DISPLAY,
+ DEVICE_CATEGORY_SOUND,
+ DEVICE_CATEGORY_MISC,
+} DeviceCategory;
+
typedef int (*qdev_initfn)(DeviceState *dev);
typedef int (*qdev_event)(DeviceState *dev);
typedef void (*qdev_resetfn)(DeviceState *dev);
@@ -80,6 +93,8 @@ typedef struct DeviceClass {
ObjectClass parent_class;
/*< public >*/
+ /* DeviceCategory bitmap */
+ unsigned int categories;
const char *fw_name;
const char *desc;
Property *props;
diff --git a/qdev-monitor.c b/qdev-monitor.c
index e54dbc2..2e6d14e 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -51,6 +51,18 @@ static const QDevAlias qdev_alias_table[] = {
{ }
};
+/* Category names corresponding to DeviceCategory values */
+static const char *qdev_category_names[] = {
+ "Assembly",
+ "Management",
+ "Storage",
+ "Network",
+ "Input",
+ "Display",
+ "Sound",
+ "Misc",
+};
+
static const char *qdev_class_get_alias(DeviceClass *dc)
{
const char *typename = object_class_get_name(OBJECT_CLASS(dc));
@@ -75,11 +87,20 @@ static bool qdev_class_has_alias(DeviceClass *dc)
return (qdev_class_get_alias(dc) != NULL);
}
+typedef struct PrintDevInfoData {
+ bool *show_no_user;
+ DeviceCategory *category;
+} PrintDevInfoData ;
+
static void qdev_print_devinfo(ObjectClass *klass, void *opaque)
{
DeviceClass *dc;
- bool *show_no_user = opaque;
+ PrintDevInfoData *data = opaque;
+ bool *show_no_user;
+ DeviceCategory category;
+ show_no_user = data ? data->show_no_user : NULL;
+ category = data && data->category ? *data->category : 0;
dc = (DeviceClass *)object_class_dynamic_cast(klass, TYPE_DEVICE);
if (!dc || (show_no_user && !*show_no_user && dc->no_user)) {
@@ -93,6 +114,18 @@ static void qdev_print_devinfo(ObjectClass *klass, void
*opaque)
if (qdev_class_has_alias(dc)) {
error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
}
+ if (dc->categories) {
+ if (dc->categories & (1 << category)) {
+ error_printf(", category \"%s\"", qdev_category_names[category]);
+ } else {
+ error_printf(", categories");
+ for (category = 0; category < MAX_DEVICE_CATEGORY; ++category) {
+ if (dc->categories & (1 << category)) {
+ error_printf(" \"%s\"", qdev_category_names[category]);
+ }
+ }
+ }
+ }
if (dc->desc) {
error_printf(", desc \"%s\"", dc->desc);
}
@@ -139,6 +172,23 @@ static const char *find_typename_by_alias(const char
*alias)
return NULL;
}
+static GSList *qdev_get_devices_by_category(unsigned long categories)
+{
+ DeviceClass *dc;
+ GSList *list, *curr, *ret_list = NULL;
+
+ list = object_class_get_list(TYPE_DEVICE, false);
+ for (curr = list; curr; curr = g_slist_next(curr)) {
+ dc = (DeviceClass *)object_class_dynamic_cast(curr->data, TYPE_DEVICE);
+ if ((dc->categories & categories) == categories) {
+ ret_list = g_slist_append(ret_list, dc);
+ }
+ }
+ g_slist_free(list);
+
+ return ret_list;
+}
+
int qdev_device_help(QemuOpts *opts)
{
const char *driver;
@@ -148,7 +198,15 @@ int qdev_device_help(QemuOpts *opts)
driver = qemu_opt_get(opts, "driver");
if (driver && is_help_option(driver)) {
bool show_no_user = false;
- object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false,
&show_no_user);
+ DeviceCategory category;
+ PrintDevInfoData data = { &show_no_user, &category };
+
+ for (category = 0; category < MAX_DEVICE_CATEGORY; ++category) {
+ GSList *list = qdev_get_devices_by_category(1 << category);
+ g_slist_foreach(list, (GFunc)qdev_print_devinfo, &data);
+ g_slist_free(list);
+ }
+
return 1;
}
--
1.8.3.1