d8dba28f83
prerequisite for using this interface. However, the 'statinfo' struct actually references CPUSTATES from <sys/resource.h>, so in fact it requires <sys/resource.h> to compile. Use a nested include of <sys/resource.h> to make the code match the docs. Reported by: Pietro Cerutti gahr | gahr.ch
170 lines
5.0 KiB
C
170 lines
5.0 KiB
C
/*
|
|
* Copyright (c) 1997, 1998 Kenneth D. Merry.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _DEVSTAT_H
|
|
#define _DEVSTAT_H
|
|
#include <sys/cdefs.h>
|
|
#include <sys/devicestat.h>
|
|
#include <sys/resource.h>
|
|
|
|
#include <kvm.h>
|
|
|
|
/*
|
|
* Bumped every time we change the userland API. Hopefully this doesn't
|
|
* happen very often! This should be bumped every time we have to
|
|
* increment SHLIB_MAJOR in the libdevstat Makefile (for non-backwards
|
|
* compatible API changes) and should also be bumped every time we make
|
|
* backwards-compatible API changes, so application writers have a way to
|
|
* determine when a particular feature is available.
|
|
*/
|
|
#define DEVSTAT_USER_API_VER 6
|
|
|
|
#define DEVSTAT_ERRBUF_SIZE 2048 /* size of the devstat library error string */
|
|
|
|
extern char devstat_errbuf[];
|
|
|
|
typedef enum {
|
|
DEVSTAT_MATCH_NONE = 0x00,
|
|
DEVSTAT_MATCH_TYPE = 0x01,
|
|
DEVSTAT_MATCH_IF = 0x02,
|
|
DEVSTAT_MATCH_PASS = 0x04
|
|
} devstat_match_flags;
|
|
|
|
typedef enum {
|
|
DSM_NONE,
|
|
DSM_TOTAL_BYTES,
|
|
DSM_TOTAL_BYTES_READ,
|
|
DSM_TOTAL_BYTES_WRITE,
|
|
DSM_TOTAL_TRANSFERS,
|
|
DSM_TOTAL_TRANSFERS_READ,
|
|
DSM_TOTAL_TRANSFERS_WRITE,
|
|
DSM_TOTAL_TRANSFERS_OTHER,
|
|
DSM_TOTAL_BLOCKS,
|
|
DSM_TOTAL_BLOCKS_READ,
|
|
DSM_TOTAL_BLOCKS_WRITE,
|
|
DSM_KB_PER_TRANSFER,
|
|
DSM_KB_PER_TRANSFER_READ,
|
|
DSM_KB_PER_TRANSFER_WRITE,
|
|
DSM_TRANSFERS_PER_SECOND,
|
|
DSM_TRANSFERS_PER_SECOND_READ,
|
|
DSM_TRANSFERS_PER_SECOND_WRITE,
|
|
DSM_TRANSFERS_PER_SECOND_OTHER,
|
|
DSM_MB_PER_SECOND,
|
|
DSM_MB_PER_SECOND_READ,
|
|
DSM_MB_PER_SECOND_WRITE,
|
|
DSM_BLOCKS_PER_SECOND,
|
|
DSM_BLOCKS_PER_SECOND_READ,
|
|
DSM_BLOCKS_PER_SECOND_WRITE,
|
|
DSM_MS_PER_TRANSACTION,
|
|
DSM_MS_PER_TRANSACTION_READ,
|
|
DSM_MS_PER_TRANSACTION_WRITE,
|
|
DSM_SKIP,
|
|
DSM_TOTAL_BYTES_FREE,
|
|
DSM_TOTAL_TRANSFERS_FREE,
|
|
DSM_TOTAL_BLOCKS_FREE,
|
|
DSM_KB_PER_TRANSFER_FREE,
|
|
DSM_MB_PER_SECOND_FREE,
|
|
DSM_TRANSFERS_PER_SECOND_FREE,
|
|
DSM_BLOCKS_PER_SECOND_FREE,
|
|
DSM_MS_PER_TRANSACTION_OTHER,
|
|
DSM_MS_PER_TRANSACTION_FREE,
|
|
DSM_BUSY_PCT,
|
|
DSM_QUEUE_LENGTH,
|
|
DSM_MAX
|
|
} devstat_metric;
|
|
|
|
struct devstat_match {
|
|
devstat_match_flags match_fields;
|
|
devstat_type_flags device_type;
|
|
int num_match_categories;
|
|
};
|
|
|
|
struct devstat_match_table {
|
|
const char * match_str;
|
|
devstat_type_flags type;
|
|
devstat_match_flags match_field;
|
|
};
|
|
|
|
struct device_selection {
|
|
u_int32_t device_number;
|
|
char device_name[DEVSTAT_NAME_LEN];
|
|
int unit_number;
|
|
int selected;
|
|
u_int64_t bytes;
|
|
int position;
|
|
};
|
|
|
|
struct devinfo {
|
|
struct devstat *devices;
|
|
u_int8_t *mem_ptr;
|
|
long generation;
|
|
int numdevs;
|
|
};
|
|
|
|
struct statinfo {
|
|
long cp_time[CPUSTATES];
|
|
long tk_nin;
|
|
long tk_nout;
|
|
struct devinfo *dinfo;
|
|
long double snap_time;
|
|
};
|
|
|
|
typedef enum {
|
|
DS_SELECT_ADD,
|
|
DS_SELECT_ONLY,
|
|
DS_SELECT_REMOVE,
|
|
DS_SELECT_ADDONLY
|
|
} devstat_select_mode;
|
|
|
|
__BEGIN_DECLS
|
|
|
|
int devstat_getnumdevs(kvm_t *kd);
|
|
long devstat_getgeneration(kvm_t *kd);
|
|
int devstat_getversion(kvm_t *kd);
|
|
int devstat_checkversion(kvm_t *kd);
|
|
int devstat_getdevs(kvm_t *kd, struct statinfo *stats);
|
|
int devstat_selectdevs(struct device_selection **dev_select, int *num_selected,
|
|
int *num_selections, long *select_generation,
|
|
long current_generation, struct devstat *devices,
|
|
int numdevs, struct devstat_match *matches,
|
|
int num_matches, char **dev_selections,
|
|
int num_dev_selections, devstat_select_mode select_mode,
|
|
int maxshowdevs, int perf_select);
|
|
int devstat_buildmatch(char *match_str, struct devstat_match **matches,
|
|
int *num_matches);
|
|
int devstat_compute_statistics(struct devstat *current,
|
|
struct devstat *previous,
|
|
long double etime, ...);
|
|
long double devstat_compute_etime(struct bintime *cur_time,
|
|
struct bintime *prev_time);
|
|
__END_DECLS
|
|
|
|
#endif /* _DEVSTAT_H */
|