2 * Server-side change notification management
4 * Copyright (C) 1998 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 struct object obj
; /* object header */
34 int subtree
; /* watch all the subtree */
35 int filter
; /* notification filter */
38 static void change_dump( struct object
*obj
, int verbose
);
39 static int change_signaled( struct object
*obj
, struct thread
*thread
);
41 static const struct object_ops change_ops
=
43 sizeof(struct change
), /* size */
44 change_dump
, /* dump */
45 add_queue
, /* add_queue */
46 remove_queue
, /* remove_queue */
47 change_signaled
, /* signaled */
48 no_satisfied
, /* satisfied */
49 no_get_fd
, /* get_fd */
50 no_get_file_info
, /* get_file_info */
51 no_destroy
/* destroy */
55 static struct change
*create_change_notification( int subtree
, int filter
)
57 struct change
*change
;
58 if ((change
= alloc_object( &change_ops
, -1 )))
60 change
->subtree
= subtree
;
61 change
->filter
= filter
;
66 static void change_dump( struct object
*obj
, int verbose
)
68 struct change
*change
= (struct change
*)obj
;
69 assert( obj
->ops
== &change_ops
);
70 fprintf( stderr
, "Change notification sub=%d filter=%08x\n",
71 change
->subtree
, change
->filter
);
74 static int change_signaled( struct object
*obj
, struct thread
*thread
)
76 /* struct change *change = (struct change *)obj;*/
77 assert( obj
->ops
== &change_ops
);
78 return 0; /* never signaled for now */
81 /* create a change notification */
82 DECL_HANDLER(create_change_notification
)
84 struct change
*change
;
87 if ((change
= create_change_notification( req
->subtree
, req
->filter
)))
89 reply
->handle
= alloc_handle( current
->process
, change
,
90 STANDARD_RIGHTS_REQUIRED
|SYNCHRONIZE
, 0 );
91 release_object( change
);