1 /* Remote notification in GDB protocol
3 Copyright (C) 1988-2013 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #ifndef REMOTE_NOTIF_H
21 #define REMOTE_NOTIF_H
25 /* An event of a type of async remote notification. */
29 /* Destructor. Release everything from SELF, but not SELF
31 void (*dtr) (struct notif_event *self);
34 /* A client to a sort of async remote notification. */
36 typedef struct notif_client
38 /* The name of notification packet. */
41 /* The packet to acknowledge a previous reply. */
42 const char *ack_command;
44 /* Parse BUF to get the expected event and update EVENT. This
45 function may throw exception if contents in BUF is not the
47 void (*parse) (struct notif_client *self, char *buf,
48 struct notif_event *event);
50 /* Send field <ack_command> to remote, and do some checking. If
51 something wrong, throw an exception. */
52 void (*ack) (struct notif_client *self, char *buf,
53 struct notif_event *event);
55 /* Check this notification client can get pending events in
56 'remote_notif_process'. */
57 int (*can_get_pending_events) (struct notif_client *self);
59 /* Allocate an event. */
60 struct notif_event *(*alloc_event) (void);
62 /* One pending event. This is where we keep it until it is
63 acknowledged. When there is a notification packet, parse it,
64 and create an object of 'struct notif_event' to assign to
65 it. This field is unchanged until GDB starts to ack this
66 notification (which is done by
67 remote.c:remote_notif_pending_replies). */
68 struct notif_event *pending_event;
71 DECLARE_QUEUE_P (notif_client_p);
73 /* State on remote async notification. */
75 struct remote_notif_state
77 /* Notification queue. */
79 QUEUE(notif_client_p) *notif_queue;
81 /* Asynchronous signal handle registered as event loop source for when
82 the remote sent us a notification. The registered callback
83 will do a ACK sequence to pull the rest of the events out of
84 the remote side into our event queue. */
86 struct async_event_handler *get_pending_events_token;
89 void remote_notif_ack (struct notif_client *nc, char *buf);
90 struct notif_event *remote_notif_parse (struct notif_client *nc,
93 void handle_notification (struct remote_notif_state *notif_state,
96 void remote_notif_process (struct remote_notif_state *state,
97 struct notif_client *except);
98 struct remote_notif_state *remote_notif_state_allocate (void);
99 void remote_notif_state_xfree (struct remote_notif_state *state);
101 extern struct notif_client notif_client_stop;
103 extern int notif_debug;
105 #endif /* REMOTE_NOTIF_H */