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