#include <machine/rtems-bsd-user-space.h>
/*-
* Copyright (c) 2005 Robert N. M. Watson
* 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.
*
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/sysctl.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "memstat.h"
#include "memstat_internal.h"
const char *
memstat_strerror(int error)
{
switch (error) {
case MEMSTAT_ERROR_NOMEMORY:
return ("Cannot allocate memory");
case MEMSTAT_ERROR_VERSION:
return ("Version mismatch");
case MEMSTAT_ERROR_PERMISSION:
return ("Permission denied");
case MEMSTAT_ERROR_DATAERROR:
return ("Data format error");
case MEMSTAT_ERROR_KVM:
return ("KVM error");
case MEMSTAT_ERROR_KVM_NOSYMBOL:
return ("KVM unable to find symbol");
case MEMSTAT_ERROR_KVM_SHORTREAD:
return ("KVM short read");
case MEMSTAT_ERROR_UNDEFINED:
default:
return ("Unknown error");
}
}
struct memory_type_list *
memstat_mtl_alloc(void)
{
struct memory_type_list *mtlp;
mtlp = malloc(sizeof(*mtlp));
if (mtlp == NULL)
return (NULL);
LIST_INIT(&mtlp->mtl_list);
mtlp->mtl_error = MEMSTAT_ERROR_UNDEFINED;
return (mtlp);
}
struct memory_type *
memstat_mtl_first(struct memory_type_list *list)
{
return (LIST_FIRST(&list->mtl_list));
}
struct memory_type *
memstat_mtl_next(struct memory_type *mtp)
{
return (LIST_NEXT(mtp, mt_list));
}
void
_memstat_mtl_empty(struct memory_type_list *list)
{
struct memory_type *mtp;
while ((mtp = LIST_FIRST(&list->mtl_list))) {
free(mtp->mt_percpu_alloc);
free(mtp->mt_percpu_cache);
LIST_REMOVE(mtp, mt_list);
free(mtp);
}
}
void
memstat_mtl_free(struct memory_type_list *list)
{
_memstat_mtl_empty(list);
free(list);
}
int
memstat_mtl_geterror(struct memory_type_list *list)
{
return (list->mtl_error);
}
/*
* Look for an existing memory_type entry in a memory_type list, based on the
* allocator and name of the type. If not found, return NULL. No errno or
* memstat error.
*/
struct memory_type *
memstat_mtl_find(struct memory_type_list *list, int allocator,
const char *name)
{
struct memory_type *mtp;
LIST_FOREACH(mtp, &list->mtl_list, mt_list) {
if ((mtp->mt_allocator == allocator ||
allocator == ALLOCATOR_ANY) &&
strcmp(mtp->mt_name, name) == 0)
return (mtp);
}
return (NULL);
}
/*
* Allocate a new memory_type with the specificed allocator type and name,
* then insert into the list. The structure will be zero'd.
*
* libmemstat(3) internal function.
*/
struct memory_type *
_memstat_mt_allocate(struct memory_type_list *list, int allocator,
const char *name, int maxcpus)
{
struct memory_type *mtp;
mtp = malloc(sizeof(*mtp));
if (mtp == NULL)
return (NULL);
bzero(mtp, sizeof(*mtp));
mtp->mt_allocator = allocator;
mtp->mt_percpu_alloc = malloc(sizeof(struct mt_percpu_alloc_s) *
maxcpus);
mtp->mt_percpu_cache = malloc(sizeof(struct mt_percpu_cache_s) *
maxcpus);
strlcpy(mtp->mt_name, name, MEMTYPE_MAXNAME);
LIST_INSERT_HEAD(&list->mtl_list, mtp, mt_list);
return (mtp);
}
/*
* Reset any libmemstat(3)-owned statistics in a memory_type record so that
* it can be reused without incremental addition problems. Caller-owned
* memory is left "as-is", and must be updated by the caller if desired.
*
* libmemstat(3) internal function.
*/
void
_memstat_mt_reset_stats(struct memory_type *mtp, int maxcpus)
{
int i;
mtp->mt_countlimit = 0;
mtp->mt_byteslimit = 0;
mtp->mt_sizemask = 0;
mtp->mt_size = 0;
mtp->mt_memalloced = 0;
mtp->mt_memfreed = 0;
mtp->mt_numallocs = 0;
mtp->mt_numfrees = 0;
mtp->mt_bytes = 0;
mtp->mt_count = 0;
mtp->mt_free = 0;
mtp->mt_failures = 0;
mtp->mt_sleeps = 0;
mtp->mt_zonefree = 0;
mtp->mt_kegfree = 0;
for (i = 0; i < maxcpus; i++) {
mtp->mt_percpu_alloc[i].mtp_memalloced = 0;
mtp->mt_percpu_alloc[i].mtp_memfreed = 0;
mtp->mt_percpu_alloc[i].mtp_numallocs = 0;
mtp->mt_percpu_alloc[i].mtp_numfrees = 0;
mtp->mt_percpu_alloc[i].mtp_sizemask = 0;
mtp->mt_percpu_cache[i].mtp_free = 0;
}
}
/*
* Accessor methods for struct memory_type. Avoids encoding the structure
* ABI into the application.
*/
const char *
memstat_get_name(const struct memory_type *mtp)
{
return (mtp->mt_name);
}
int
memstat_get_allocator(const struct memory_type *mtp)
{
return (mtp->mt_allocator);
}
uint64_t
memstat_get_countlimit(const struct memory_type *mtp)
{
return (mtp->mt_countlimit);
}
uint64_t
memstat_get_byteslimit(const struct memory_type *mtp)
{
return (mtp->mt_byteslimit);
}
uint64_t
memstat_get_sizemask(const struct memory_type *mtp)
{
return (mtp->mt_sizemask);
}
uint64_t
memstat_get_size(const struct memory_type *mtp)
{
return (mtp->mt_size);
}
uint64_t
memstat_get_rsize(const struct memory_type *mtp)
{
return (mtp->mt_rsize);
}
uint64_t
memstat_get_memalloced(const struct memory_type *mtp)
{
return (mtp->mt_memalloced);
}
uint64_t
memstat_get_memfreed(const struct memory_type *mtp)
{
return (mtp->mt_memfreed);
}
uint64_t
memstat_get_numallocs(const struct memory_type *mtp)
{
return (mtp->mt_numallocs);
}
uint64_t
memstat_get_numfrees(const struct memory_type *mtp)
{
return (mtp->mt_numfrees);
}
uint64_t
memstat_get_bytes(const struct memory_type *mtp)
{
return (mtp->mt_bytes);
}
uint64_t
memstat_get_count(const struct memory_type *mtp)
{
return (mtp->mt_count);
}
uint64_t
memstat_get_free(const struct memory_type *mtp)
{
return (mtp->mt_free);
}
uint64_t
memstat_get_failures(const struct memory_type *mtp)
{
return (mtp->mt_failures);
}
uint64_t
memstat_get_sleeps(const struct memory_type *mtp)
{
return (mtp->mt_sleeps);
}
void *
memstat_get_caller_pointer(const struct memory_type *mtp, int index)
{
return (mtp->mt_caller_pointer[index]);
}
void
memstat_set_caller_pointer(struct memory_type *mtp, int index, void *value)
{
mtp->mt_caller_pointer[index] = value;
}
uint64_t
memstat_get_caller_uint64(const struct memory_type *mtp, int index)
{
return (mtp->mt_caller_uint64[index]);
}
void
memstat_set_caller_uint64(struct memory_type *mtp, int index, uint64_t value)
{
mtp->mt_caller_uint64[index] = value;
}
uint64_t
memstat_get_zonefree(const struct memory_type *mtp)
{
return (mtp->mt_zonefree);
}
uint64_t
memstat_get_kegfree(const struct memory_type *mtp)
{
return (mtp->mt_kegfree);
}
uint64_t
memstat_get_percpu_memalloced(const struct memory_type *mtp, int cpu)
{
return (mtp->mt_percpu_alloc[cpu].mtp_memalloced);
}
uint64_t
memstat_get_percpu_memfreed(const struct memory_type *mtp, int cpu)
{
return (mtp->mt_percpu_alloc[cpu].mtp_memfreed);
}
uint64_t
memstat_get_percpu_numallocs(const struct memory_type *mtp, int cpu)
{
return (mtp->mt_percpu_alloc[cpu].mtp_numallocs);
}
uint64_t
memstat_get_percpu_numfrees(const struct memory_type *mtp, int cpu)
{
return (mtp->mt_percpu_alloc[cpu].mtp_numfrees);
}
uint64_t
memstat_get_percpu_sizemask(const struct memory_type *mtp, int cpu)
{
return (mtp->mt_percpu_alloc[cpu].mtp_sizemask);
}
void *
memstat_get_percpu_caller_pointer(const struct memory_type *mtp, int cpu,
int index)
{
return (mtp->mt_percpu_alloc[cpu].mtp_caller_pointer[index]);
}
void
memstat_set_percpu_caller_pointer(struct memory_type *mtp, int cpu,
int index, void *value)
{
mtp->mt_percpu_alloc[cpu].mtp_caller_pointer[index] = value;
}
uint64_t
memstat_get_percpu_caller_uint64(const struct memory_type *mtp, int cpu,
int index)
{
return (mtp->mt_percpu_alloc[cpu].mtp_caller_uint64[index]);
}
void
memstat_set_percpu_caller_uint64(struct memory_type *mtp, int cpu, int index,
uint64_t value)
{
mtp->mt_percpu_alloc[cpu].mtp_caller_uint64[index] = value;
}
uint64_t
memstat_get_percpu_free(const struct memory_type *mtp, int cpu)
{
return (mtp->mt_percpu_cache[cpu].mtp_free);
}
