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