/
darwin_sigar.m
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darwin_sigar.m
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/*
* Copyright (c) 2004-2009 Hyperic, Inc.
* Copyright (c) 2009 SpringSource, Inc.
* Copyright (c) 2009-2010 VMware, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "sigar.h"
#include "sigar_private.h"
#include "sigar_util.h"
#include "sigar_os.h"
#include <sys/param.h>
#include <sys/mount.h>
#if !(defined(__FreeBSD__) && (__FreeBSD_version >= 800000))
#include <nfs/rpcv2.h>
#endif
#include <nfs/nfsproto.h>
#ifdef DARWIN
#include <dlfcn.h>
#include <mach/mach_init.h>
#include <mach/message.h>
#include <mach/kern_return.h>
#include <mach/mach_host.h>
#include <mach/mach_traps.h>
#include <mach/mach_port.h>
#include <mach/task.h>
#include <mach/thread_act.h>
#include <mach/thread_info.h>
#include <mach/vm_map.h>
#if !defined(HAVE_SHARED_REGION_H) && defined(__MAC_10_5) /* see Availability.h */
# define HAVE_SHARED_REGION_H /* suckit autoconf */
#endif
#ifdef HAVE_SHARED_REGION_H
#include <mach/shared_region.h> /* does not exist in 10.4 SDK */
#else
#include <mach/shared_memory_server.h> /* deprecated in Leopard */
#endif
#include <mach-o/dyld.h>
#define __OPENTRANSPORTPROVIDERS__
#import <CoreServices/CoreServices.h>
#include <CoreFoundation/CFString.h>
#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/IOBSD.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/IOTypes.h>
#include <IOKit/storage/IOBlockStorageDriver.h>
#else
#include <sys/dkstat.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/user.h>
#include <sys/vmmeter.h>
#include <fcntl.h>
#include <stdio.h>
#endif
#if defined(__FreeBSD__) && (__FreeBSD_version >= 500013)
#define SIGAR_FREEBSD5_NFSSTAT
#include <nfsclient/nfs.h>
#include <nfsserver/nfs.h>
#else
#include <nfs/nfs.h>
#endif
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <dirent.h>
#include <errno.h>
#include <sys/socketvar.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/in_pcb.h>
#include <netinet/tcp.h>
#include <netinet/tcp_timer.h>
#ifdef __NetBSD__
#include <netinet/ip_var.h>
#include <sys/lwp.h>
#include <sys/mount.h>
#define SRUN LSRUN
#define SSLEEP LSSLEEP
#define SDEAD LSDEAD
#define SONPROC LSONPROC
#define SSUSPENDED LSSUSPENDED
#include <sys/sched.h>
#endif
#include <netinet/tcp_var.h>
#include <netinet/tcp_fsm.h>
#define NMIB(mib) (sizeof(mib)/sizeof(mib[0]))
#ifdef __FreeBSD__
# if (__FreeBSD_version >= 500013)
# define SIGAR_FREEBSD5
# else
# define SIGAR_FREEBSD4
# endif
#endif
#if defined(SIGAR_FREEBSD5)
#define KI_FD ki_fd
#define KI_PID ki_pid
#define KI_PPID ki_ppid
#define KI_PRI ki_pri.pri_user
#define KI_NICE ki_nice
#define KI_COMM ki_comm
#define KI_STAT ki_stat
#define KI_UID ki_ruid
#define KI_GID ki_rgid
#define KI_EUID ki_svuid
#define KI_EGID ki_svgid
#define KI_SIZE ki_size
#define KI_RSS ki_rssize
#define KI_TSZ ki_tsize
#define KI_DSZ ki_dsize
#define KI_SSZ ki_ssize
#define KI_FLAG ki_flag
#define KI_START ki_start
#elif defined(DARWIN) || defined(SIGAR_FREEBSD4) || defined(__OpenBSD__) || defined(__NetBSD__)
#define KI_FD kp_proc.p_fd
#define KI_PID kp_proc.p_pid
#define KI_PPID kp_eproc.e_ppid
#define KI_PRI kp_proc.p_priority
#define KI_NICE kp_proc.p_nice
#define KI_COMM kp_proc.p_comm
#define KI_STAT kp_proc.p_stat
#define KI_UID kp_eproc.e_pcred.p_ruid
#define KI_GID kp_eproc.e_pcred.p_rgid
#define KI_EUID kp_eproc.e_pcred.p_svuid
#define KI_EGID kp_eproc.e_pcred.p_svgid
#define KI_SIZE XXX
#define KI_RSS kp_eproc.e_vm.vm_rssize
#define KI_TSZ kp_eproc.e_vm.vm_tsize
#define KI_DSZ kp_eproc.e_vm.vm_dsize
#define KI_SSZ kp_eproc.e_vm.vm_ssize
#define KI_FLAG kp_eproc.e_flag
#define KI_START kp_proc.p_starttime
#endif
#ifndef DARWIN
#define PROCFS_STATUS(status) \
((((status) != SIGAR_OK) && !sigar->proc_mounted) ? \
SIGAR_ENOTIMPL : status)
static int get_koffsets(sigar_t *sigar)
{
int i;
struct nlist klist[] = {
{ "_cp_time" },
{ "_cnt" },
#if defined(__OpenBSD__) || defined(__NetBSD__)
{ "_tcpstat" },
{ "_tcbtable" },
#endif
{ NULL }
};
if (!sigar->kmem) {
return SIGAR_EPERM_KMEM;
}
kvm_nlist(sigar->kmem, klist);
for (i=0; i<KOFFSET_MAX; i++) {
sigar->koffsets[i] = klist[i].n_value;
}
return SIGAR_OK;
}
static int kread(sigar_t *sigar, void *data, int size, long offset)
{
if (!sigar->kmem) {
return SIGAR_EPERM_KMEM;
}
if (kvm_read(sigar->kmem, offset, data, size) != size) {
return errno;
}
return SIGAR_OK;
}
#endif
int sigar_os_open(sigar_t **sigar)
{
int mib[2];
int ncpu;
size_t len;
struct timeval boottime;
#ifndef DARWIN
struct stat sb;
#endif
len = sizeof(ncpu);
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
if (sysctl(mib, NMIB(mib), &ncpu, &len, NULL, 0) < 0) {
return errno;
}
len = sizeof(boottime);
mib[0] = CTL_KERN;
mib[1] = KERN_BOOTTIME;
if (sysctl(mib, NMIB(mib), &boottime, &len, NULL, 0) < 0) {
return errno;
}
*sigar = je_malloc(sizeof(**sigar));
#ifdef DARWIN
(*sigar)->mach_port = mach_host_self();
# ifdef DARWIN_HAS_LIBPROC_H
if (((*sigar)->libproc = dlopen("/usr/lib/libproc.dylib", 0))) {
(*sigar)->proc_pidinfo = dlsym((*sigar)->libproc, "proc_pidinfo");
(*sigar)->proc_pidfdinfo = dlsym((*sigar)->libproc, "proc_pidfdinfo");
}
# endif
#else
(*sigar)->kmem = kvm_open(NULL, NULL, NULL, O_RDONLY, NULL);
if (stat("/proc/curproc", &sb) < 0) {
(*sigar)->proc_mounted = 0;
}
else {
(*sigar)->proc_mounted = 1;
}
#endif
#ifndef DARWIN
get_koffsets(*sigar);
#endif
(*sigar)->ncpu = ncpu;
(*sigar)->lcpu = -1;
(*sigar)->argmax = 0;
(*sigar)->boot_time = boottime.tv_sec; /* XXX seems off a bit */
(*sigar)->pagesize = getpagesize();
#ifdef __FreeBSD__
(*sigar)->ticks = 100; /* sysconf(_SC_CLK_TCK) == 128 !? */
#else
(*sigar)->ticks = sysconf(_SC_CLK_TCK);
#endif
(*sigar)->last_pid = -1;
(*sigar)->pinfo = NULL;
return SIGAR_OK;
}
int sigar_os_close(sigar_t *sigar)
{
if (sigar->pinfo) {
je_free(sigar->pinfo);
}
#ifndef DARWIN
if (sigar->kmem) {
kvm_close(sigar->kmem);
}
#endif
je_free(sigar);
return SIGAR_OK;
}
char *sigar_os_error_string(sigar_t *sigar, int err)
{
switch (err) {
case SIGAR_EPERM_KMEM:
return "Failed to open /dev/kmem for reading";
case SIGAR_EPROC_NOENT:
return "/proc filesystem is not mounted";
default:
return NULL;
}
}
/* ARG_MAX in FreeBSD 6.0 == 262144, which blows up the stack */
#define SIGAR_ARG_MAX 65536
#ifdef DARWIN
static size_t sigar_argmax_get(sigar_t *sigar)
{
#ifdef KERN_ARGMAX
int mib[] = { CTL_KERN, KERN_ARGMAX };
size_t size = sizeof(sigar->argmax);
if (sigar->argmax != 0) {
return sigar->argmax;
}
if (sysctl(mib, NMIB(mib), &sigar->argmax, &size, NULL, 0) == 0) {
return sigar->argmax;
}
#endif
return SIGAR_ARG_MAX;
}
#endif /* DARWIN */
#if defined(DARWIN)
static int sigar_vmstat(sigar_t *sigar, vm_statistics_data_t *vmstat)
{
kern_return_t status;
mach_msg_type_number_t count = sizeof(*vmstat) / sizeof(integer_t);
status = host_statistics(sigar->mach_port, HOST_VM_INFO,
(host_info_t)vmstat, &count);
if (status == KERN_SUCCESS) {
return SIGAR_OK;
}
else {
return errno;
}
}
#elif defined(__FreeBSD__)
static int sigar_vmstat(sigar_t *sigar, struct vmmeter *vmstat)
{
int status;
size_t size = sizeof(unsigned int);
status = kread(sigar, vmstat, sizeof(*vmstat),
sigar->koffsets[KOFFSET_VMMETER]);
if (status == SIGAR_OK) {
return SIGAR_OK;
}
SIGAR_ZERO(vmstat);
/* derived from src/usr.bin/vmstat/vmstat.c */
/* only collect the ones we actually use */
#define GET_VM_STATS(cat, name, used) \
if (used) sysctlbyname("vm.stats." #cat "." #name, &vmstat->name, &size, NULL, 0)
/* sys */
GET_VM_STATS(sys, v_swtch, 0);
GET_VM_STATS(sys, v_trap, 0);
GET_VM_STATS(sys, v_syscall, 0);
GET_VM_STATS(sys, v_intr, 0);
GET_VM_STATS(sys, v_soft, 0);
/* vm */
GET_VM_STATS(vm, v_vm_faults, 0);
GET_VM_STATS(vm, v_cow_faults, 0);
GET_VM_STATS(vm, v_cow_optim, 0);
GET_VM_STATS(vm, v_zfod, 0);
GET_VM_STATS(vm, v_ozfod, 0);
GET_VM_STATS(vm, v_swapin, 1);
GET_VM_STATS(vm, v_swapout, 1);
GET_VM_STATS(vm, v_swappgsin, 0);
GET_VM_STATS(vm, v_swappgsout, 0);
GET_VM_STATS(vm, v_vnodein, 1);
GET_VM_STATS(vm, v_vnodeout, 1);
GET_VM_STATS(vm, v_vnodepgsin, 0);
GET_VM_STATS(vm, v_vnodepgsout, 0);
GET_VM_STATS(vm, v_intrans, 0);
GET_VM_STATS(vm, v_reactivated, 0);
GET_VM_STATS(vm, v_pdwakeups, 0);
GET_VM_STATS(vm, v_pdpages, 0);
GET_VM_STATS(vm, v_dfree, 0);
GET_VM_STATS(vm, v_pfree, 0);
GET_VM_STATS(vm, v_tfree, 0);
GET_VM_STATS(vm, v_page_size, 0);
GET_VM_STATS(vm, v_page_count, 0);
GET_VM_STATS(vm, v_free_reserved, 0);
GET_VM_STATS(vm, v_free_target, 0);
GET_VM_STATS(vm, v_free_min, 0);
GET_VM_STATS(vm, v_free_count, 1);
GET_VM_STATS(vm, v_wire_count, 0);
GET_VM_STATS(vm, v_active_count, 0);
GET_VM_STATS(vm, v_inactive_target, 0);
GET_VM_STATS(vm, v_inactive_count, 1);
GET_VM_STATS(vm, v_cache_count, 1);
GET_VM_STATS(vm, v_cache_min, 0);
GET_VM_STATS(vm, v_cache_max, 0);
GET_VM_STATS(vm, v_pageout_free_min, 0);
GET_VM_STATS(vm, v_interrupt_free_min, 0);
GET_VM_STATS(vm, v_forks, 0);
GET_VM_STATS(vm, v_vforks, 0);
GET_VM_STATS(vm, v_rforks, 0);
GET_VM_STATS(vm, v_kthreads, 0);
GET_VM_STATS(vm, v_forkpages, 0);
GET_VM_STATS(vm, v_vforkpages, 0);
GET_VM_STATS(vm, v_rforkpages, 0);
GET_VM_STATS(vm, v_kthreadpages, 0);
#undef GET_VM_STATS
return SIGAR_OK;
}
#elif defined(__OpenBSD__) || defined(__NetBSD__)
static int sigar_vmstat(sigar_t *sigar, struct uvmexp *vmstat)
{
size_t size = sizeof(*vmstat);
int mib[] = { CTL_VM, VM_UVMEXP };
if (sysctl(mib, NMIB(mib), vmstat, &size, NULL, 0) < 0) {
return errno;
}
else {
return SIGAR_OK;
}
}
#endif
int sigar_mem_get(sigar_t *sigar, sigar_mem_t *mem)
{
sigar_uint64_t kern = 0;
#ifdef DARWIN
vm_statistics_data_t vmstat;
uint64_t mem_total;
#else
unsigned long mem_total;
#endif
#if defined(__FreeBSD__)
struct vmmeter vmstat;
#elif defined(__OpenBSD__) || defined(__NetBSD__)
struct uvmexp vmstat;
#endif
int mib[2];
size_t len;
int status;
mib[0] = CTL_HW;
mib[1] = HW_PAGESIZE;
len = sizeof(sigar->pagesize);
if (sysctl(mib, NMIB(mib), &sigar->pagesize, &len, NULL, 0) < 0) {
return errno;
}
#ifdef DARWIN
mib[1] = HW_MEMSIZE;
#else
mib[1] = HW_PHYSMEM;
#endif
len = sizeof(mem_total);
if (sysctl(mib, NMIB(mib), &mem_total, &len, NULL, 0) < 0) {
return errno;
}
mem->total = mem_total;
#if defined(DARWIN)
if ((status = sigar_vmstat(sigar, &vmstat)) != SIGAR_OK) {
return status;
}
mem->free = vmstat.free_count;
mem->free *= sigar->pagesize;
kern = vmstat.inactive_count;
kern *= sigar->pagesize;
#elif defined(__FreeBSD__)
if ((status = sigar_vmstat(sigar, &vmstat)) == SIGAR_OK) {
kern = vmstat.v_cache_count + vmstat.v_inactive_count;
kern *= sigar->pagesize;
mem->free = vmstat.v_free_count;
mem->free *= sigar->pagesize;
}
#elif defined(__OpenBSD__) || defined(__NetBSD__)
if ((status = sigar_vmstat(sigar, &vmstat)) != SIGAR_OK) {
return status;
}
mem->free = vmstat.free;
kern = vmstat.inactive;
# if defined(__OpenBSD__)
kern += vmstat.vnodepages + vmstat.vtextpages;
# elif defined(__NetBSD__)
kern += vmstat.filepages + vmstat.execpages;
# endif
kern *= sigar->pagesize;
#endif
mem->used = mem->total - mem->free;
mem->actual_free = mem->free + kern;
mem->actual_used = mem->used - kern;
sigar_mem_calc_ram(sigar, mem);
return SIGAR_OK;
}
#define SWI_MAXMIB 3
#ifdef SIGAR_FREEBSD5
/* code in this function is based on FreeBSD 5.3 kvm_getswapinfo.c */
static int getswapinfo_sysctl(struct kvm_swap *swap_ary,
int swap_max)
{
int ti, ttl;
size_t mibi, len, size;
int soid[SWI_MAXMIB];
struct xswdev xsd;
struct kvm_swap tot;
int unswdev, dmmax;
/* XXX this can be optimized by using os_open */
size = sizeof(dmmax);
if (sysctlbyname("vm.dmmax", &dmmax, &size, NULL, 0) == -1) {
return errno;
}
mibi = SWI_MAXMIB - 1;
if (sysctlnametomib("vm.swap_info", soid, &mibi) == -1) {
return errno;
}
bzero(&tot, sizeof(tot));
for (unswdev = 0;; unswdev++) {
soid[mibi] = unswdev;
len = sizeof(xsd);
if (sysctl(soid, mibi + 1, &xsd, &len, NULL, 0) == -1) {
if (errno == ENOENT) {
break;
}
return errno;
}
#if 0
if (len != sizeof(xsd)) {
_kvm_err(kd, kd->program, "struct xswdev has unexpected "
"size; kernel and libkvm out of sync?");
return -1;
}
if (xsd.xsw_version != XSWDEV_VERSION) {
_kvm_err(kd, kd->program, "struct xswdev version "
"mismatch; kernel and libkvm out of sync?");
return -1;
}
#endif
ttl = xsd.xsw_nblks - dmmax;
if (unswdev < swap_max - 1) {
bzero(&swap_ary[unswdev], sizeof(swap_ary[unswdev]));
swap_ary[unswdev].ksw_total = ttl;
swap_ary[unswdev].ksw_used = xsd.xsw_used;
swap_ary[unswdev].ksw_flags = xsd.xsw_flags;
}
tot.ksw_total += ttl;
tot.ksw_used += xsd.xsw_used;
}
ti = unswdev;
if (ti >= swap_max) {
ti = swap_max - 1;
}
if (ti >= 0) {
swap_ary[ti] = tot;
}
return SIGAR_OK;
}
#else
#define getswapinfo_sysctl(swap_ary, swap_max) SIGAR_ENOTIMPL
#endif
#define SIGAR_FS_BLOCKS_TO_BYTES(val, bsize) ((val * bsize) >> 1)
#ifdef DARWIN
#define VM_DIR "/private/var/vm"
#define SWAPFILE "swapfile"
static int sigar_swap_fs_get(sigar_t *sigar, sigar_swap_t *swap) /* <= 10.3 */
{
DIR *dirp;
struct dirent *ent;
char swapfile[SSTRLEN(VM_DIR) + SSTRLEN("/") + SSTRLEN(SWAPFILE) + 12];
struct stat swapstat;
struct statfs vmfs;
sigar_uint64_t val, bsize;
swap->used = swap->total = swap->free = 0;
if (!(dirp = opendir(VM_DIR))) {
return errno;
}
/* looking for "swapfile0", "swapfile1", etc. */
while ((ent = readdir(dirp))) {
char *ptr = swapfile;
if ((ent->d_namlen < SSTRLEN(SWAPFILE)+1) || /* n/a, see comment above */
(ent->d_namlen > SSTRLEN(SWAPFILE)+11)) /* ensure no overflow */
{
continue;
}
if (!strnEQ(ent->d_name, SWAPFILE, SSTRLEN(SWAPFILE))) {
continue;
}
/* sprintf(swapfile, "%s/%s", VM_DIR, ent->d_name) */
memcpy(ptr, VM_DIR, SSTRLEN(VM_DIR));
ptr += SSTRLEN(VM_DIR);
*ptr++ = '/';
memcpy(ptr, ent->d_name, ent->d_namlen+1);
if (stat(swapfile, &swapstat) < 0) {
continue;
}
swap->used += swapstat.st_size;
}
closedir(dirp);
if (statfs(VM_DIR, &vmfs) < 0) {
return errno;
}
bsize = vmfs.f_bsize / 512;
val = vmfs.f_bfree;
swap->total = SIGAR_FS_BLOCKS_TO_BYTES(val, bsize) + swap->used;
swap->free = swap->total - swap->used;
return SIGAR_OK;
}
static int sigar_swap_sysctl_get(sigar_t *sigar, sigar_swap_t *swap)
{
#ifdef VM_SWAPUSAGE /* => 10.4 */
struct xsw_usage sw_usage;
size_t size = sizeof(sw_usage);
int mib[] = { CTL_VM, VM_SWAPUSAGE };
if (sysctl(mib, NMIB(mib), &sw_usage, &size, NULL, 0) != 0) {
return errno;
}
swap->total = sw_usage.xsu_total;
swap->used = sw_usage.xsu_used;
swap->free = sw_usage.xsu_avail;
return SIGAR_OK;
#else
return SIGAR_ENOTIMPL; /* <= 10.3 */
#endif
}
#endif /* DARWIN */
int sigar_swap_get(sigar_t *sigar, sigar_swap_t *swap)
{
int status;
#if defined(DARWIN)
vm_statistics_data_t vmstat;
if (sigar_swap_sysctl_get(sigar, swap) != SIGAR_OK) {
status = sigar_swap_fs_get(sigar, swap); /* <= 10.3 */
if (status != SIGAR_OK) {
return status;
}
}
if ((status = sigar_vmstat(sigar, &vmstat)) != SIGAR_OK) {
return status;
}
swap->page_in = vmstat.pageins;
swap->page_out = vmstat.pageouts;
#elif defined(__FreeBSD__)
struct kvm_swap kswap[1];
struct vmmeter vmstat;
if (getswapinfo_sysctl(kswap, 1) != SIGAR_OK) {
if (!sigar->kmem) {
return SIGAR_EPERM_KMEM;
}
if (kvm_getswapinfo(sigar->kmem, kswap, 1, 0) < 0) {
return errno;
}
}
if (kswap[0].ksw_total == 0) {
swap->total = 0;
swap->used = 0;
swap->free = 0;
return SIGAR_OK;
}
swap->total = kswap[0].ksw_total * sigar->pagesize;
swap->used = kswap[0].ksw_used * sigar->pagesize;
swap->free = swap->total - swap->used;
if ((status = sigar_vmstat(sigar, &vmstat)) == SIGAR_OK) {
swap->page_in = vmstat.v_swapin + vmstat.v_vnodein;
swap->page_out = vmstat.v_swapout + vmstat.v_vnodeout;
}
else {
swap->page_in = swap->page_out = -1;
}
#elif defined(__OpenBSD__) || defined(__NetBSD__)
struct uvmexp vmstat;
if ((status = sigar_vmstat(sigar, &vmstat)) != SIGAR_OK) {
return status;
}
swap->total = vmstat.swpages * sigar->pagesize;
swap->used = vmstat.swpginuse * sigar->pagesize;
swap->free = swap->total - swap->used;
swap->page_in = vmstat.pageins;
swap->page_out = vmstat.pdpageouts;
#endif
return SIGAR_OK;
}
#ifndef KERN_CPTIME
#define KERN_CPTIME KERN_CP_TIME
#endif
#if defined(__NetBSD__)
typedef uint64_t cp_time_t;
#else
typedef unsigned long cp_time_t;
#endif
int sigar_cpu_get(sigar_t *sigar, sigar_cpu_t *cpu)
{
#if defined(DARWIN)
kern_return_t status;
mach_msg_type_number_t count = HOST_CPU_LOAD_INFO_COUNT;
host_cpu_load_info_data_t cpuload;
status = host_statistics(sigar->mach_port, HOST_CPU_LOAD_INFO,
(host_info_t)&cpuload, &count);
if (status != KERN_SUCCESS) {
return errno;
}
cpu->user = SIGAR_TICK2MSEC(cpuload.cpu_ticks[CPU_STATE_USER]);
cpu->sys = SIGAR_TICK2MSEC(cpuload.cpu_ticks[CPU_STATE_SYSTEM]);
cpu->idle = SIGAR_TICK2MSEC(cpuload.cpu_ticks[CPU_STATE_IDLE]);
cpu->nice = SIGAR_TICK2MSEC(cpuload.cpu_ticks[CPU_STATE_NICE]);
cpu->wait = 0; /*N/A*/
cpu->irq = 0; /*N/A*/
cpu->soft_irq = 0; /*N/A*/
cpu->stolen = 0; /*N/A*/
cpu->total = cpu->user + cpu->nice + cpu->sys + cpu->idle;
#elif defined(__FreeBSD__) || (__OpenBSD__) || defined(__NetBSD__)
int status;
cp_time_t cp_time[CPUSTATES];
size_t size = sizeof(cp_time);
# if defined(__OpenBSD__) || defined(__NetBSD__)
int mib[] = { CTL_KERN, KERN_CPTIME };
if (sysctl(mib, NMIB(mib), &cp_time, &size, NULL, 0) == -1) {
status = errno;
}
# else
/* try sysctl first, does not require /dev/kmem perms */
if (sysctlbyname("kern.cp_time", &cp_time, &size, NULL, 0) == -1) {
status = kread(sigar, &cp_time, sizeof(cp_time),
sigar->koffsets[KOFFSET_CPUINFO]);
}
# endif
else {
status = SIGAR_OK;
}
if (status != SIGAR_OK) {
return status;
}
cpu->user = SIGAR_TICK2MSEC(cp_time[CP_USER]);
cpu->nice = SIGAR_TICK2MSEC(cp_time[CP_NICE]);
cpu->sys = SIGAR_TICK2MSEC(cp_time[CP_SYS]);
cpu->idle = SIGAR_TICK2MSEC(cp_time[CP_IDLE]);
cpu->wait = 0; /*N/A*/
cpu->irq = SIGAR_TICK2MSEC(cp_time[CP_INTR]);
cpu->soft_irq = 0; /*N/A*/
cpu->stolen = 0; /*N/A*/
cpu->total = cpu->user + cpu->nice + cpu->sys + cpu->idle + cpu->irq;
#endif
return SIGAR_OK;
}
#if defined(__FreeBSD__) && (__FreeBSD_version >= 700000)
#define HAVE_KERN_CP_TIMES /* kern.cp_times came later than 7.0, not sure exactly when */
static int sigar_cp_times_get(sigar_t *sigar, sigar_cpu_list_t *cpulist)
{
int maxcpu, status;
size_t len = sizeof(maxcpu), size;
long *times;
if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &len, NULL, 0) == -1) {
return errno;
}
size = sizeof(long) * maxcpu * CPUSTATES;
times = je_malloc(size);
if (sysctlbyname("kern.cp_times", times, &size, NULL, 0) == -1) {
status = errno;
}
else {
int i, maxid = (size / CPUSTATES / sizeof(long));
long *cp_time = times;
status = SIGAR_OK;
for (i=0; i<maxid; i++) {
sigar_cpu_t *cpu;
SIGAR_CPU_LIST_GROW(cpulist);
cpu = &cpulist->data[cpulist->number++];
cpu->user = SIGAR_TICK2MSEC(cp_time[CP_USER]);
cpu->nice = SIGAR_TICK2MSEC(cp_time[CP_NICE]);
cpu->sys = SIGAR_TICK2MSEC(cp_time[CP_SYS]);
cpu->idle = SIGAR_TICK2MSEC(cp_time[CP_IDLE]);
cpu->wait = 0; /*N/A*/
cpu->irq = SIGAR_TICK2MSEC(cp_time[CP_INTR]);
cpu->soft_irq = 0; /*N/A*/
cpu->stolen = 0; /*N/A*/
cpu->total = cpu->user + cpu->nice + cpu->sys + cpu->idle + cpu->irq;
cp_time += CPUSTATES;
}
}
je_free(times);
return status;
}
#endif
int sigar_cpu_list_get(sigar_t *sigar, sigar_cpu_list_t *cpulist)
{
#ifdef DARWIN
kern_return_t status;
mach_msg_type_number_t count;
processor_cpu_load_info_data_t *cpuload;
natural_t i, ncpu;
status = host_processor_info(sigar->mach_port,
PROCESSOR_CPU_LOAD_INFO,
&ncpu,
(processor_info_array_t*)&cpuload,
&count);
if (status != KERN_SUCCESS) {
return errno;
}
sigar_cpu_list_create(cpulist);
for (i=0; i<ncpu; i++) {
sigar_cpu_t *cpu;
SIGAR_CPU_LIST_GROW(cpulist);
cpu = &cpulist->data[cpulist->number++];
cpu->user = SIGAR_TICK2MSEC(cpuload[i].cpu_ticks[CPU_STATE_USER]);
cpu->sys = SIGAR_TICK2MSEC(cpuload[i].cpu_ticks[CPU_STATE_SYSTEM]);
cpu->idle = SIGAR_TICK2MSEC(cpuload[i].cpu_ticks[CPU_STATE_IDLE]);
cpu->nice = SIGAR_TICK2MSEC(cpuload[i].cpu_ticks[CPU_STATE_NICE]);
cpu->wait = 0; /*N/A*/
cpu->irq = 0; /*N/A*/
cpu->soft_irq = 0; /*N/A*/
cpu->stolen = 0; /*N/A*/
cpu->total = cpu->user + cpu->nice + cpu->sys + cpu->idle;
}
vm_deallocate(mach_task_self(), (vm_address_t)cpuload, count);
return SIGAR_OK;
#else
int status, i;
sigar_cpu_t *cpu;
sigar_cpu_list_create(cpulist);
#ifdef HAVE_KERN_CP_TIMES
if ((status = sigar_cp_times_get(sigar, cpulist)) == SIGAR_OK) {
return SIGAR_OK;
}
#endif
/* XXX no multi cpu in freebsd < 7.0, howbout others?
* for now just report all metrics on the 1st cpu
* 0's for the rest
*/
cpu = &cpulist->data[cpulist->number++];
status = sigar_cpu_get(sigar, cpu);
if (status != SIGAR_OK) {
return status;
}
for (i=1; i<sigar->ncpu; i++) {
SIGAR_CPU_LIST_GROW(cpulist);
cpu = &cpulist->data[cpulist->number++];
SIGAR_ZERO(cpu);
}
return SIGAR_OK;
#endif
}
int sigar_uptime_get(sigar_t *sigar,
sigar_uptime_t *uptime)
{
uptime->uptime = time(NULL) - sigar->boot_time;
return SIGAR_OK;
}
int sigar_loadavg_get(sigar_t *sigar,
sigar_loadavg_t *loadavg)
{
getloadavg(loadavg->loadavg, 3);
return SIGAR_OK;
}
#if defined(DARWIN) && defined(DARWIN_HAS_LIBPROC_H)
static int proc_fdinfo_get(sigar_t *sigar, sigar_pid_t pid, int *num)
{
int rsize;
const int init_size = PROC_PIDLISTFD_SIZE * 32;
if (!sigar->libproc) {
return SIGAR_ENOTIMPL;
}
if (sigar->ifconf_len == 0) {
sigar->ifconf_len = init_size;
sigar->ifconf_buf = je_malloc(sigar->ifconf_len);
}
while (1) {
rsize = sigar->proc_pidinfo(pid, PROC_PIDLISTFDS, 0,
sigar->ifconf_buf, sigar->ifconf_len);
if (rsize <= 0) {
return errno;
}
if ((rsize + PROC_PIDLISTFD_SIZE) < sigar->ifconf_len) {
break;
}
sigar->ifconf_len += init_size;
sigar->ifconf_buf = je_realloc(sigar->ifconf_buf, sigar->ifconf_len);
}
*num = rsize / PROC_PIDLISTFD_SIZE;
return SIGAR_OK;
}
#endif
#ifndef KERN_PROC_PROC
/* freebsd 4.x */
#define KERN_PROC_PROC KERN_PROC_ALL
#endif
int sigar_os_proc_list_get(sigar_t *sigar,
sigar_proc_list_t *proclist)
{
#if defined(DARWIN) || defined(SIGAR_FREEBSD5) || defined(__OpenBSD__) || defined(__NetBSD__)
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PROC, 0 };
int i, num;
size_t len;
struct kinfo_proc *proc;
if (sysctl(mib, NMIB(mib), NULL, &len, NULL, 0) < 0) {
return errno;
}