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 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 #ifndef _FMD_DISPQ_H 29 #define _FMD_DISPQ_H 30 31 #include <sys/types.h> 32 #include <pthread.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #include <fmd_idspace.h> 39 #include <fmd_eventq.h> 40 41 typedef struct fmd_dispqlist { 42 struct fmd_dispqlist *dq_next; /* link to next subscription object */ 43 fmd_eventq_t *dq_eventq; /* pointer to subscribing eventq */ 44 } fmd_dispqlist_t; 45 46 typedef struct fmd_dispqelem { 47 char *dq_name; /* name associated with this element */ 48 struct fmd_dispqelem *dq_link; /* link to next element in hash chain */ 49 struct fmd_dispqelem **dq_hash; /* hash bucket array for lower levels */ 50 uint_t dq_hashlen; /* length of dq_hash bucket array */ 51 fmd_dispqlist_t *dq_list; /* head of list of subscribers */ 52 uint_t dq_refs; /* ref count of hash and list elems */ 53 } fmd_dispqelem_t; 54 55 typedef struct fmd_dispq { 56 pthread_rwlock_t dq_lock; /* lock for event dispatch queue */ 57 fmd_dispqelem_t *dq_root; /* root hash table pointer */ 58 fmd_idspace_t *dq_gids; /* id hash for subscriber group ids */ 59 id_t dq_gmax; /* maximum group id allocated */ 60 } fmd_dispq_t; 61 62 extern fmd_dispq_t *fmd_dispq_create(void); 63 extern void fmd_dispq_destroy(fmd_dispq_t *); 64 65 extern void fmd_dispq_insert(fmd_dispq_t *, fmd_eventq_t *, const char *); 66 extern void fmd_dispq_delete(fmd_dispq_t *, fmd_eventq_t *, const char *); 67 extern void fmd_dispq_dispatch(fmd_dispq_t *, fmd_event_t *, const char *); 68 extern void fmd_dispq_dispatch_gid(fmd_dispq_t *, fmd_event_t *, 69 const char *, id_t); 70 71 extern id_t fmd_dispq_getgid(fmd_dispq_t *, void *); 72 extern void fmd_dispq_delgid(fmd_dispq_t *, id_t); 73 74 #ifdef __cplusplus 75 } 76 #endif 77 78 #endif /* _FMD_DISPQ_H */ 79