5e53a4f90f
Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
178 lines
5.2 KiB
C
178 lines
5.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1997, 1998 Kenneth D. Merry.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEVSTAT_H
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#define _DEVSTAT_H
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#include <sys/cdefs.h>
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#include <sys/devicestat.h>
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#include <sys/resource.h>
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#include <kvm.h>
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/*
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* Bumped every time we change the userland API. Hopefully this doesn't
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* happen very often! This should be bumped every time we have to
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* increment SHLIB_MAJOR in the libdevstat Makefile (for non-backwards
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* compatible API changes) and should also be bumped every time we make
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* backwards-compatible API changes, so application writers have a way to
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* determine when a particular feature is available.
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*/
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#define DEVSTAT_USER_API_VER 6
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#define DEVSTAT_ERRBUF_SIZE 2048 /* size of the devstat library error string */
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extern char devstat_errbuf[];
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typedef enum {
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DEVSTAT_MATCH_NONE = 0x00,
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DEVSTAT_MATCH_TYPE = 0x01,
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DEVSTAT_MATCH_IF = 0x02,
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DEVSTAT_MATCH_PASS = 0x04
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} devstat_match_flags;
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typedef enum {
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DSM_NONE,
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DSM_TOTAL_BYTES,
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DSM_TOTAL_BYTES_READ,
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DSM_TOTAL_BYTES_WRITE,
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DSM_TOTAL_TRANSFERS,
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DSM_TOTAL_TRANSFERS_READ,
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DSM_TOTAL_TRANSFERS_WRITE,
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DSM_TOTAL_TRANSFERS_OTHER,
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DSM_TOTAL_BLOCKS,
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DSM_TOTAL_BLOCKS_READ,
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DSM_TOTAL_BLOCKS_WRITE,
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DSM_KB_PER_TRANSFER,
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DSM_KB_PER_TRANSFER_READ,
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DSM_KB_PER_TRANSFER_WRITE,
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DSM_TRANSFERS_PER_SECOND,
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DSM_TRANSFERS_PER_SECOND_READ,
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DSM_TRANSFERS_PER_SECOND_WRITE,
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DSM_TRANSFERS_PER_SECOND_OTHER,
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DSM_MB_PER_SECOND,
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DSM_MB_PER_SECOND_READ,
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DSM_MB_PER_SECOND_WRITE,
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DSM_BLOCKS_PER_SECOND,
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DSM_BLOCKS_PER_SECOND_READ,
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DSM_BLOCKS_PER_SECOND_WRITE,
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DSM_MS_PER_TRANSACTION,
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DSM_MS_PER_TRANSACTION_READ,
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DSM_MS_PER_TRANSACTION_WRITE,
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DSM_SKIP,
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DSM_TOTAL_BYTES_FREE,
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DSM_TOTAL_TRANSFERS_FREE,
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DSM_TOTAL_BLOCKS_FREE,
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DSM_KB_PER_TRANSFER_FREE,
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DSM_MB_PER_SECOND_FREE,
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DSM_TRANSFERS_PER_SECOND_FREE,
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DSM_BLOCKS_PER_SECOND_FREE,
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DSM_MS_PER_TRANSACTION_OTHER,
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DSM_MS_PER_TRANSACTION_FREE,
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DSM_BUSY_PCT,
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DSM_QUEUE_LENGTH,
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DSM_TOTAL_DURATION,
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DSM_TOTAL_DURATION_READ,
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DSM_TOTAL_DURATION_WRITE,
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DSM_TOTAL_DURATION_FREE,
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DSM_TOTAL_DURATION_OTHER,
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DSM_TOTAL_BUSY_TIME,
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DSM_MAX
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} devstat_metric;
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struct devstat_match {
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devstat_match_flags match_fields;
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devstat_type_flags device_type;
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int num_match_categories;
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};
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struct devstat_match_table {
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const char * match_str;
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devstat_type_flags type;
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devstat_match_flags match_field;
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};
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struct device_selection {
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u_int32_t device_number;
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char device_name[DEVSTAT_NAME_LEN];
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int unit_number;
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int selected;
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u_int64_t bytes;
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int position;
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};
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struct devinfo {
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struct devstat *devices;
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u_int8_t *mem_ptr;
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long generation;
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int numdevs;
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};
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struct statinfo {
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long cp_time[CPUSTATES];
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long tk_nin;
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long tk_nout;
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struct devinfo *dinfo;
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long double snap_time;
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};
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typedef enum {
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DS_SELECT_ADD,
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DS_SELECT_ONLY,
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DS_SELECT_REMOVE,
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DS_SELECT_ADDONLY
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} devstat_select_mode;
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__BEGIN_DECLS
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int devstat_getnumdevs(kvm_t *kd);
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long devstat_getgeneration(kvm_t *kd);
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int devstat_getversion(kvm_t *kd);
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int devstat_checkversion(kvm_t *kd);
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int devstat_getdevs(kvm_t *kd, struct statinfo *stats);
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int devstat_selectdevs(struct device_selection **dev_select, int *num_selected,
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int *num_selections, long *select_generation,
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long current_generation, struct devstat *devices,
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int numdevs, struct devstat_match *matches,
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int num_matches, char **dev_selections,
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int num_dev_selections, devstat_select_mode select_mode,
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int maxshowdevs, int perf_select);
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int devstat_buildmatch(char *match_str, struct devstat_match **matches,
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int *num_matches);
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int devstat_compute_statistics(struct devstat *current,
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struct devstat *previous,
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long double etime, ...);
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long double devstat_compute_etime(struct bintime *cur_time,
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struct bintime *prev_time);
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__END_DECLS
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#endif /* _DEVSTAT_H */
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