1 /* 2 * Copyright (c) 1997, 1998 Kenneth D. Merry. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $Id: devstat.h,v 1.1 1998/09/15 06:23:21 gibbs Exp $ 29 */ 30 31 #ifndef _DEVSTAT_H 32 #define _DEVSTAT_H 33 #include <sys/cdefs.h> 34 #include <sys/devicestat.h> 35 36 #define DEVSTAT_ERRBUF_SIZE 2048 /* size of the devstat library error string */ 37 38 extern char devstat_errbuf[]; 39 40 typedef enum { 41 DEVSTAT_MATCH_NONE = 0x00, 42 DEVSTAT_MATCH_TYPE = 0x01, 43 DEVSTAT_MATCH_IF = 0x02, 44 DEVSTAT_MATCH_PASS = 0x04 45 } devstat_match_flags; 46 47 struct devstat_match { 48 devstat_match_flags match_fields; 49 devstat_type_flags device_type; 50 int num_match_categories; 51 }; 52 53 struct devstat_match_table { 54 char *match_str; 55 devstat_type_flags type; 56 devstat_match_flags match_field; 57 }; 58 59 struct device_selection { 60 u_int32_t device_number; 61 char device_name[DEVSTAT_NAME_LEN]; 62 int unit_number; 63 int selected; 64 u_int64_t bytes; 65 int position; 66 }; 67 68 struct devinfo { 69 struct devstat *devices; 70 u_int8_t *mem_ptr; 71 long generation; 72 int numdevs; 73 }; 74 75 struct statinfo { 76 long cp_time[CPUSTATES]; 77 long tk_nin; 78 long tk_nout; 79 struct devinfo *dinfo; 80 struct timeval busy_time; 81 }; 82 83 typedef enum { 84 DS_SELECT_ADD, 85 DS_SELECT_ONLY, 86 DS_SELECT_REMOVE, 87 DS_SELECT_ADDONLY 88 } devstat_select_mode; 89 90 __BEGIN_DECLS 91 int getnumdevs(void); 92 long getgeneration(void); 93 int getversion(void); 94 int checkversion(void); 95 int getdevs(struct statinfo *stats); 96 int selectdevs(struct device_selection **dev_select, int *num_selected, 97 int *num_selections, long *select_generation, 98 long current_generation, struct devstat *devices, int numdevs, 99 struct devstat_match *matches, int num_matches, 100 char **dev_selections, int num_dev_selections, 101 devstat_select_mode select_mode, int maxshowdevs, 102 int perf_select); 103 int buildmatch(char *match_str, struct devstat_match **matches, 104 int *num_matches); 105 int compute_stats(struct devstat *current, struct devstat *previous, 106 long double etime, u_int64_t *total_bytes, 107 u_int64_t *total_transfers, u_int64_t *total_blocks, 108 long double *kb_per_transfer, 109 long double *transfers_per_second, long double *mb_per_second, 110 long double *blocks_per_second, 111 long double *ms_per_transaction); 112 long double compute_etime(struct timeval cur_time, struct timeval prev_time); 113 __END_DECLS 114 115 #endif /* _DEVSTAT_H */ 116