xref: /titanic_52/usr/src/cmd/svc/startd/protocol.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #ifndef	_PROTOCOL_H
28*7c478bd9Sstevel@tonic-gate #define	_PROTOCOL_H
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*7c478bd9Sstevel@tonic-gate 
32*7c478bd9Sstevel@tonic-gate #include <startd.h>
33*7c478bd9Sstevel@tonic-gate 
34*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
35*7c478bd9Sstevel@tonic-gate extern "C" {
36*7c478bd9Sstevel@tonic-gate #endif
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate typedef enum {
39*7c478bd9Sstevel@tonic-gate 	GRAPH_UPDATE_RELOAD_GRAPH,
40*7c478bd9Sstevel@tonic-gate 	GRAPH_UPDATE_ADD_INSTANCE,
41*7c478bd9Sstevel@tonic-gate 	GRAPH_UPDATE_STATE_CHANGE
42*7c478bd9Sstevel@tonic-gate } graph_event_type_t;
43*7c478bd9Sstevel@tonic-gate 
44*7c478bd9Sstevel@tonic-gate typedef struct protocol_states {
45*7c478bd9Sstevel@tonic-gate 	restarter_instance_state_t	ps_state;
46*7c478bd9Sstevel@tonic-gate 	restarter_instance_state_t	ps_state_next;
47*7c478bd9Sstevel@tonic-gate 	restarter_error_t		ps_err;
48*7c478bd9Sstevel@tonic-gate } protocol_states_t;
49*7c478bd9Sstevel@tonic-gate 
50*7c478bd9Sstevel@tonic-gate 
51*7c478bd9Sstevel@tonic-gate typedef struct graph_protocol_event {
52*7c478bd9Sstevel@tonic-gate 	char			*gpe_inst;
53*7c478bd9Sstevel@tonic-gate 	size_t			gpe_inst_sz;
54*7c478bd9Sstevel@tonic-gate 	graph_event_type_t	gpe_type;
55*7c478bd9Sstevel@tonic-gate 	protocol_states_t	*gpe_data;
56*7c478bd9Sstevel@tonic-gate 
57*7c478bd9Sstevel@tonic-gate 	uu_list_node_t		gpe_link;
58*7c478bd9Sstevel@tonic-gate 	pthread_mutex_t		gpe_lock;
59*7c478bd9Sstevel@tonic-gate } graph_protocol_event_t;
60*7c478bd9Sstevel@tonic-gate 
61*7c478bd9Sstevel@tonic-gate typedef struct graph_update {
62*7c478bd9Sstevel@tonic-gate 	pthread_mutex_t			gu_lock;
63*7c478bd9Sstevel@tonic-gate 	pthread_cond_t			gu_cv;
64*7c478bd9Sstevel@tonic-gate 	int				gu_wakeup;
65*7c478bd9Sstevel@tonic-gate 
66*7c478bd9Sstevel@tonic-gate 	pthread_mutex_t			gu_freeze_lock;
67*7c478bd9Sstevel@tonic-gate 	pthread_cond_t			gu_freeze_cv;
68*7c478bd9Sstevel@tonic-gate 	int				gu_freeze_wakeup;
69*7c478bd9Sstevel@tonic-gate } graph_update_t;
70*7c478bd9Sstevel@tonic-gate 
71*7c478bd9Sstevel@tonic-gate typedef struct restarter_protocol_event {
72*7c478bd9Sstevel@tonic-gate 	char			*rpe_inst;
73*7c478bd9Sstevel@tonic-gate 	restarter_event_type_t	rpe_type;
74*7c478bd9Sstevel@tonic-gate 
75*7c478bd9Sstevel@tonic-gate 	uu_list_node_t		rpe_link;
76*7c478bd9Sstevel@tonic-gate } restarter_protocol_event_t;
77*7c478bd9Sstevel@tonic-gate 
78*7c478bd9Sstevel@tonic-gate typedef struct restarter_update {
79*7c478bd9Sstevel@tonic-gate 	pthread_mutex_t			restarter_update_lock;
80*7c478bd9Sstevel@tonic-gate 	pthread_cond_t			restarter_update_cv;
81*7c478bd9Sstevel@tonic-gate 	int				restarter_update_wakeup;
82*7c478bd9Sstevel@tonic-gate } restarter_update_t;
83*7c478bd9Sstevel@tonic-gate 
84*7c478bd9Sstevel@tonic-gate extern restarter_update_t *ru;
85*7c478bd9Sstevel@tonic-gate extern graph_update_t *gu;
86*7c478bd9Sstevel@tonic-gate 
87*7c478bd9Sstevel@tonic-gate void graph_protocol_init();
88*7c478bd9Sstevel@tonic-gate void graph_protocol_send_event(const char *, graph_event_type_t,
89*7c478bd9Sstevel@tonic-gate     protocol_states_t *);
90*7c478bd9Sstevel@tonic-gate graph_protocol_event_t *graph_event_dequeue();
91*7c478bd9Sstevel@tonic-gate void graph_event_requeue(graph_protocol_event_t *);
92*7c478bd9Sstevel@tonic-gate void graph_event_release(graph_protocol_event_t *);
93*7c478bd9Sstevel@tonic-gate 
94*7c478bd9Sstevel@tonic-gate void restarter_protocol_init();
95*7c478bd9Sstevel@tonic-gate evchan_t *restarter_protocol_init_delegate(char *);
96*7c478bd9Sstevel@tonic-gate void restarter_protocol_send_event(const char *, evchan_t *,
97*7c478bd9Sstevel@tonic-gate     restarter_event_type_t);
98*7c478bd9Sstevel@tonic-gate restarter_protocol_event_t *restarter_event_dequeue();
99*7c478bd9Sstevel@tonic-gate void restarter_event_requeue(restarter_protocol_event_t *);
100*7c478bd9Sstevel@tonic-gate void restarter_event_release(restarter_protocol_event_t *);
101*7c478bd9Sstevel@tonic-gate 
102*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
103*7c478bd9Sstevel@tonic-gate }
104*7c478bd9Sstevel@tonic-gate #endif
105*7c478bd9Sstevel@tonic-gate 
106*7c478bd9Sstevel@tonic-gate #endif	/* _PROTOCOL_H */
107