mirror of https://gitee.com/openkylin/qemu.git
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
|
/*
|
||
|
|
* Helpers for using D-Bus
|
||
|
|
*
|
||
|
|
* Copyright (C) 2019 Red Hat, Inc.
|
||
|
|
*
|
||
|
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
||
|
|
* the COPYING file in the top-level directory.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "qemu/osdep.h"
|
||
|
|
#include "qemu/dbus.h"
|
||
|
|
#include "qemu/error-report.h"
|
||
|
|
#include "qapi/error.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* qemu_dbus_get_queued_owners() - return the list of queued unique names
|
||
|
|
* @connection: A GDBusConnection
|
||
|
|
* @name: a service name
|
||
|
|
*
|
||
|
|
* Return: a GStrv of unique names, or NULL on failure.
|
||
|
|
*/
|
||
|
|
GStrv
|
||
|
|
qemu_dbus_get_queued_owners(GDBusConnection *connection, const char *name,
|
||
|
|
Error **errp)
|
||
|
|
{
|
||
|
|
g_autoptr(GDBusProxy) proxy = NULL;
|
||
|
|
g_autoptr(GVariant) result = NULL;
|
||
|
|
g_autoptr(GVariant) child = NULL;
|
||
|
|
g_autoptr(GError) err = NULL;
|
||
|
|
|
||
|
|
proxy = g_dbus_proxy_new_sync(connection, G_DBUS_PROXY_FLAGS_NONE, NULL,
|
||
|
|
"org.freedesktop.DBus",
|
||
|
|
"/org/freedesktop/DBus",
|
||
|
|
"org.freedesktop.DBus",
|
||
|
|
NULL, &err);
|
||
|
|
if (!proxy) {
|
||
|
|
error_setg(errp, "Failed to create DBus proxy: %s", err->message);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
result = g_dbus_proxy_call_sync(proxy, "ListQueuedOwners",
|
||
|
|
g_variant_new("(s)", name),
|
||
|
|
G_DBUS_CALL_FLAGS_NO_AUTO_START,
|
||
|
|
-1, NULL, &err);
|
||
|
|
if (!result) {
|
||
|
|
if (g_error_matches(err,
|
||
|
|
G_DBUS_ERROR,
|
||
|
|
G_DBUS_ERROR_NAME_HAS_NO_OWNER)) {
|
||
|
|
return g_new0(char *, 1);
|
||
|
|
}
|
||
|
|
error_setg(errp, "Failed to call ListQueuedOwners: %s", err->message);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
child = g_variant_get_child_value(result, 0);
|
||
|
|
return g_variant_dup_strv(child, NULL);
|
||
|
|
}
|