10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7275Sstephh * Common Development and Distribution License (the "License"). 6*7275Sstephh * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 211193Smws 220Sstevel@tonic-gate /* 23*7275Sstephh * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 240Sstevel@tonic-gate * Use is subject to license terms. 250Sstevel@tonic-gate */ 260Sstevel@tonic-gate 270Sstevel@tonic-gate #ifndef _FMD_SCHEME_H 280Sstevel@tonic-gate #define _FMD_SCHEME_H 290Sstevel@tonic-gate 300Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 310Sstevel@tonic-gate 320Sstevel@tonic-gate #include <libnvpair.h> 330Sstevel@tonic-gate #include <pthread.h> 340Sstevel@tonic-gate 350Sstevel@tonic-gate #ifdef __cplusplus 360Sstevel@tonic-gate extern "C" { 370Sstevel@tonic-gate #endif 380Sstevel@tonic-gate 390Sstevel@tonic-gate /* 400Sstevel@tonic-gate * Scheme operations. These function pointers are filled in when the scheme 410Sstevel@tonic-gate * is loaded. New operations must be added here as well as to the default 420Sstevel@tonic-gate * operations declaration and initialization table in fmd_scheme.c. 430Sstevel@tonic-gate */ 440Sstevel@tonic-gate typedef struct fmd_scheme_ops { 450Sstevel@tonic-gate int (*sop_init)(void); 460Sstevel@tonic-gate void (*sop_fini)(void); 470Sstevel@tonic-gate ssize_t (*sop_nvl2str)(nvlist_t *, char *, size_t); 480Sstevel@tonic-gate int (*sop_expand)(nvlist_t *); 490Sstevel@tonic-gate int (*sop_present)(nvlist_t *); 50*7275Sstephh int (*sop_replaced)(nvlist_t *); 51*7275Sstephh int (*sop_service_state)(nvlist_t *); 520Sstevel@tonic-gate int (*sop_unusable)(nvlist_t *); 530Sstevel@tonic-gate int (*sop_contains)(nvlist_t *, nvlist_t *); 541193Smws nvlist_t *(*sop_translate)(nvlist_t *, nvlist_t *); 550Sstevel@tonic-gate } fmd_scheme_ops_t; 560Sstevel@tonic-gate 570Sstevel@tonic-gate typedef struct fmd_scheme_opd { 580Sstevel@tonic-gate const char *opd_name; /* symbol name of scheme function */ 590Sstevel@tonic-gate size_t opd_off; /* offset within fmd_scheme_ops_t */ 600Sstevel@tonic-gate } fmd_scheme_opd_t; 610Sstevel@tonic-gate 620Sstevel@tonic-gate typedef struct fmd_scheme { 630Sstevel@tonic-gate struct fmd_scheme *sch_next; /* next scheme on hash bucket chain */ 640Sstevel@tonic-gate char *sch_name; /* name of this scheme (fmri prefix) */ 650Sstevel@tonic-gate void *sch_dlp; /* libdl(3DL) shared library handle */ 660Sstevel@tonic-gate pthread_mutex_t sch_lock; /* lock protecting cv, refs, loaded */ 670Sstevel@tonic-gate pthread_cond_t sch_cv; /* condition variable for sch_loaded */ 680Sstevel@tonic-gate uint_t sch_refs; /* scheme reference count */ 690Sstevel@tonic-gate uint_t sch_loaded; /* scheme has been loaded */ 700Sstevel@tonic-gate pthread_mutex_t sch_opslock; /* lock protecting non-init/fini ops */ 710Sstevel@tonic-gate fmd_scheme_ops_t sch_ops; /* scheme function pointers */ 720Sstevel@tonic-gate } fmd_scheme_t; 730Sstevel@tonic-gate 740Sstevel@tonic-gate typedef struct fmd_scheme_hash { 750Sstevel@tonic-gate pthread_rwlock_t sch_rwlock; /* rwlock protecting scheme hash */ 760Sstevel@tonic-gate fmd_scheme_t **sch_hash; /* hash bucket array of schemes */ 770Sstevel@tonic-gate uint_t sch_hashlen; /* length of hash bucket array */ 780Sstevel@tonic-gate char *sch_dirpath; /* directory path for schemes */ 790Sstevel@tonic-gate } fmd_scheme_hash_t; 800Sstevel@tonic-gate 810Sstevel@tonic-gate extern fmd_scheme_hash_t *fmd_scheme_hash_create(const char *, const char *); 820Sstevel@tonic-gate extern void fmd_scheme_hash_destroy(fmd_scheme_hash_t *); 830Sstevel@tonic-gate extern void fmd_scheme_hash_trygc(fmd_scheme_hash_t *); 840Sstevel@tonic-gate 850Sstevel@tonic-gate extern fmd_scheme_t *fmd_scheme_hash_lookup(fmd_scheme_hash_t *, const char *); 860Sstevel@tonic-gate extern void fmd_scheme_hash_release(fmd_scheme_hash_t *, fmd_scheme_t *); 870Sstevel@tonic-gate 880Sstevel@tonic-gate #ifdef __cplusplus 890Sstevel@tonic-gate } 900Sstevel@tonic-gate #endif 910Sstevel@tonic-gate 920Sstevel@tonic-gate #endif /* _FMD_SCHEME_H */ 93