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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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