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