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GDBus: Add support for D-Bus type 'h' (ie. G_VARIANT_TYPE_HANDLE)

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This allows sending and receiving D-Bus messages with instances of the
'h' D-Bus type. Unlike libdbus-1's dbus_message_iter_get_basic()
method, g_variant_get_handle() does not return a duplicated unix file
descriptor (that must be closed with close(2)) - instead, it returns
an index that can be used to get/dup the file descriptor from a
GUnixFDList object that can be obtained from the GDBusMessage object.

Signed-off-by: David Zeuthen <davidz@redhat.com>
This commit is contained in:
David Zeuthen
2010-07-20 11:38:23 -04:00
parent 66388120d2
commit 2be167f57c
2 changed files with 50 additions and 0 deletions
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28
gio/tests/gdbus-serialization.c
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@@ -405,6 +405,18 @@ dbus_1_message_append (GString *s,
break;
}
#ifdef DBUS_TYPE_UNIX_FD
case DBUS_TYPE_UNIX_FD:
{
/* unfortunately there's currently no way to get just the
* protocol value, since dbus_message_iter_get_basic() wants
* to be 'helpful' and dup the fd for the user...
*/
g_string_append (s, "unix-fd: (not extracted)\n");
break;
}
#endif
case DBUS_TYPE_VARIANT:
g_string_append_printf (s, "variant:\n");
dbus_message_iter_recurse (iter, &sub);
@@ -672,6 +684,22 @@ message_serialize_complex (void)
" string: `cwd'\n"
" variant:\n"
" string: `/home/davidz/Hacking/glib/gio/tests'\n");
#ifdef DBUS_TYPE_UNIX_FD
value = g_variant_parse (G_VARIANT_TYPE ("(hah)"),
"(42, [43, 44])",
NULL, NULL, &error);
g_assert_no_error (error);
g_assert (value != NULL);
/* about (not extracted), see comment in DBUS_TYPE_UNIX_FD case in
* dbus_1_message_append() above.
*/
check_serialization (value,
"value 0: unix-fd: (not extracted)\n"
"value 1: array:\n"
" unix-fd: (not extracted)\n"
" unix-fd: (not extracted)\n");
#endif
}