1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * 24*0Sstevel@tonic-gate * cfsd_maptbl.h 25*0Sstevel@tonic-gate * 26*0Sstevel@tonic-gate * Include file for the maptbl class. 27*0Sstevel@tonic-gate */ 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 30*0Sstevel@tonic-gate /* Copyright (c) 1994 by Sun Microsystems, Inc. */ 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifndef CFSD_MAPTBL 33*0Sstevel@tonic-gate #define CFSD_MAPTBL 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate typedef struct cfsd_maptbl_object { 36*0Sstevel@tonic-gate char i_name[MAXPATHLEN * 3]; /* name of file */ 37*0Sstevel@tonic-gate int i_fid; /* fid of file */ 38*0Sstevel@tonic-gate off_t i_size; /* file size */ 39*0Sstevel@tonic-gate int i_entries; /* number of entries */ 40*0Sstevel@tonic-gate int i_hash2mod; /* second hash module value */ 41*0Sstevel@tonic-gate int i_stat_filled; /* number of filled entries */ 42*0Sstevel@tonic-gate int i_stat_requests; /* number of lookups done */ 43*0Sstevel@tonic-gate int i_stat_probes; /* number of probes */ 44*0Sstevel@tonic-gate int i_stat_mapmove; /* number of times map moved */ 45*0Sstevel@tonic-gate long i_stat_mapdist; /* how far we move the map */ 46*0Sstevel@tonic-gate caddr_t i_pa; /* address of mmap section */ 47*0Sstevel@tonic-gate size_t i_palen; /* length of mmap section */ 48*0Sstevel@tonic-gate off_t i_paoff; /* offset of mmap section */ 49*0Sstevel@tonic-gate off_t i_paend; /* end offset of mmap section */ 50*0Sstevel@tonic-gate long i_pagesize; /* size of a page */ 51*0Sstevel@tonic-gate u_long i_pagemask; /* page alignment mask */ 52*0Sstevel@tonic-gate long i_maplen; /* amount to map */ 53*0Sstevel@tonic-gate } cfsd_maptbl_object_t; 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate cfsd_maptbl_object_t *cfsd_maptbl_create(void); 56*0Sstevel@tonic-gate void cfsd_maptbl_destroy(cfsd_maptbl_object_t *maptbl_object_p); 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate int maptbl_domap(cfsd_maptbl_object_t *maptbl_object_p, off_t off); 59*0Sstevel@tonic-gate caddr_t maptbl_getaddr(cfsd_maptbl_object_t *maptbl_object_p, int index); 60*0Sstevel@tonic-gate int maptbll_cidhashaddr(cfsd_maptbl_object_t *maptbl_object_p, 61*0Sstevel@tonic-gate cfs_cid_t cid, caddr_t *addrp); 62*0Sstevel@tonic-gate int maptbl_hash1(cfsd_maptbl_object_t *maptbl_object_p, cfs_cid_t cid); 63*0Sstevel@tonic-gate int maptbl_hash2(cfsd_maptbl_object_t *maptbl_object_p, cfs_cid_t cid, 64*0Sstevel@tonic-gate int index); 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* performs setup for the specified file */ 67*0Sstevel@tonic-gate int maptbl_setup(cfsd_maptbl_object_t *maptbl_object_p, const char *filename); 68*0Sstevel@tonic-gate void maptbl_teardown(cfsd_maptbl_object_t *maptbl_object_p); 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate /* gets/sets cid mapping */ 71*0Sstevel@tonic-gate int maptbl_get(cfsd_maptbl_object_t *maptbl_object_p, cfs_cid_t cid, 72*0Sstevel@tonic-gate struct cfs_dlog_mapping_space *valuep); 73*0Sstevel@tonic-gate int maptbl_set(cfsd_maptbl_object_t *maptbl_object_p, 74*0Sstevel@tonic-gate struct cfs_dlog_mapping_space *valuep, int insert); 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate /* prints out various stats about the hashing */ 77*0Sstevel@tonic-gate void maptbl_dumpstats(cfsd_maptbl_object_t *maptbl_object_p); 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate #endif /* CFSD_MAPTBL */ 80