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 2002 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _HTBL_H 28 #define _HTBL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <stdlib.h> 37 38 typedef struct hentry { 39 struct hentry *next; /* next entry in hash chain */ 40 struct hentry *prev; /* previous entry in hash chain */ 41 char *lib; /* library name */ 42 char *key; /* hash key (function name) */ 43 unsigned long count; /* number of occurances of fn */ 44 } hentry_t; 45 46 typedef struct hashb { 47 hentry_t *first; /* first entry in bucket */ 48 mutex_t block; /* bucket lock */ 49 } hashb_t; 50 51 typedef struct htbl { 52 unsigned int size; /* size of tbl in buckets */ 53 hashb_t *tbl; /* ptr to buckets */ 54 } htbl_t; 55 56 typedef struct hiter { 57 int bucket; /* bucket in current iteration */ 58 hentry_t *next; /* next entry in iteration */ 59 htbl_t *table; /* ptr to table */ 60 } hiter_t; 61 62 /* 63 * HD_hashntry specifies that the entry written to disk contains information 64 * about function calls and is stored in the hash table. When read back from 65 * disk this is merged into the parent's hash table 66 * 67 * HD_cts_syscts specifies that the entry written to disk is a struct counts 68 * struct syscount pair. This contains information about system calls, 69 * signals, and faults. When read back from disk, the information is added 70 * to the struct count / struct syscount information kept by the parent. 71 */ 72 73 typedef enum hdtype { HD_hashntry, HD_cts_syscts } hdtype_t; 74 75 typedef struct hdntry { 76 hdtype_t type; /* type of entry we've written to disk */ 77 size_t sz_lib; /* size of library string on disk */ 78 size_t sz_key; /* size of key string on disk */ 79 unsigned long count; /* count of occurrances of key */ 80 } hdntry_t; 81 82 83 extern htbl_t *init_hash(unsigned int); 84 extern void destroy_hash(htbl_t *); 85 extern hiter_t *iterate_hash(htbl_t *); 86 extern hentry_t *iter_next(hiter_t *); 87 extern void iter_free(hiter_t *); 88 extern void add_fcall(htbl_t *, char *, char *, unsigned long); 89 extern size_t elements_in_table(htbl_t *); 90 91 #ifdef __cplusplus 92 } 93 #endif 94 95 #endif /* _HTBL_H */ 96