feat: Waku v2 bridge

Issue #12610

vendor/github.com/shirou/gopsutil/LICENSE

@@ -0,0 +1,61 @@
+gopsutil is distributed under BSD license reproduced below.
+
+Copyright (c) 2014, WAKAYAMA Shirou
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+ * 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.
+ * Neither the name of the gopsutil authors nor the names of its contributors
+   may be used to endorse or promote products derived from this software without
+   specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+
+
+-------
+internal/common/binary.go in the gopsutil is copied and modifid from golang/encoding/binary.go.
+
+
+
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * 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.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+OWNER 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.

vendor/github.com/shirou/gopsutil/cpu/cpu.go

@@ -0,0 +1,185 @@
+package cpu
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+// TimesStat contains the amounts of time the CPU has spent performing different
+// kinds of work. Time units are in seconds. It is based on linux /proc/stat file.
+type TimesStat struct {
+	CPU       string  `json:"cpu"`
+	User      float64 `json:"user"`
+	System    float64 `json:"system"`
+	Idle      float64 `json:"idle"`
+	Nice      float64 `json:"nice"`
+	Iowait    float64 `json:"iowait"`
+	Irq       float64 `json:"irq"`
+	Softirq   float64 `json:"softirq"`
+	Steal     float64 `json:"steal"`
+	Guest     float64 `json:"guest"`
+	GuestNice float64 `json:"guestNice"`
+}
+
+type InfoStat struct {
+	CPU        int32    `json:"cpu"`
+	VendorID   string   `json:"vendorId"`
+	Family     string   `json:"family"`
+	Model      string   `json:"model"`
+	Stepping   int32    `json:"stepping"`
+	PhysicalID string   `json:"physicalId"`
+	CoreID     string   `json:"coreId"`
+	Cores      int32    `json:"cores"`
+	ModelName  string   `json:"modelName"`
+	Mhz        float64  `json:"mhz"`
+	CacheSize  int32    `json:"cacheSize"`
+	Flags      []string `json:"flags"`
+	Microcode  string   `json:"microcode"`
+}
+
+type lastPercent struct {
+	sync.Mutex
+	lastCPUTimes    []TimesStat
+	lastPerCPUTimes []TimesStat
+}
+
+var lastCPUPercent lastPercent
+var invoke common.Invoker = common.Invoke{}
+
+func init() {
+	lastCPUPercent.Lock()
+	lastCPUPercent.lastCPUTimes, _ = Times(false)
+	lastCPUPercent.lastPerCPUTimes, _ = Times(true)
+	lastCPUPercent.Unlock()
+}
+
+// Counts returns the number of physical or logical cores in the system
+func Counts(logical bool) (int, error) {
+	return CountsWithContext(context.Background(), logical)
+}
+
+func (c TimesStat) String() string {
+	v := []string{
+		`"cpu":"` + c.CPU + `"`,
+		`"user":` + strconv.FormatFloat(c.User, 'f', 1, 64),
+		`"system":` + strconv.FormatFloat(c.System, 'f', 1, 64),
+		`"idle":` + strconv.FormatFloat(c.Idle, 'f', 1, 64),
+		`"nice":` + strconv.FormatFloat(c.Nice, 'f', 1, 64),
+		`"iowait":` + strconv.FormatFloat(c.Iowait, 'f', 1, 64),
+		`"irq":` + strconv.FormatFloat(c.Irq, 'f', 1, 64),
+		`"softirq":` + strconv.FormatFloat(c.Softirq, 'f', 1, 64),
+		`"steal":` + strconv.FormatFloat(c.Steal, 'f', 1, 64),
+		`"guest":` + strconv.FormatFloat(c.Guest, 'f', 1, 64),
+		`"guestNice":` + strconv.FormatFloat(c.GuestNice, 'f', 1, 64),
+	}
+
+	return `{` + strings.Join(v, ",") + `}`
+}
+
+// Total returns the total number of seconds in a CPUTimesStat
+func (c TimesStat) Total() float64 {
+	total := c.User + c.System + c.Nice + c.Iowait + c.Irq + c.Softirq +
+		c.Steal + c.Idle
+	return total
+}
+
+func (c InfoStat) String() string {
+	s, _ := json.Marshal(c)
+	return string(s)
+}
+
+func getAllBusy(t TimesStat) (float64, float64) {
+	busy := t.User + t.System + t.Nice + t.Iowait + t.Irq +
+		t.Softirq + t.Steal
+	return busy + t.Idle, busy
+}
+
+func calculateBusy(t1, t2 TimesStat) float64 {
+	t1All, t1Busy := getAllBusy(t1)
+	t2All, t2Busy := getAllBusy(t2)
+
+	if t2Busy <= t1Busy {
+		return 0
+	}
+	if t2All <= t1All {
+		return 100
+	}
+	return math.Min(100, math.Max(0, (t2Busy-t1Busy)/(t2All-t1All)*100))
+}
+
+func calculateAllBusy(t1, t2 []TimesStat) ([]float64, error) {
+	// Make sure the CPU measurements have the same length.
+	if len(t1) != len(t2) {
+		return nil, fmt.Errorf(
+			"received two CPU counts: %d != %d",
+			len(t1), len(t2),
+		)
+	}
+
+	ret := make([]float64, len(t1))
+	for i, t := range t2 {
+		ret[i] = calculateBusy(t1[i], t)
+	}
+	return ret, nil
+}
+
+// Percent calculates the percentage of cpu used either per CPU or combined.
+// If an interval of 0 is given it will compare the current cpu times against the last call.
+// Returns one value per cpu, or a single value if percpu is set to false.
+func Percent(interval time.Duration, percpu bool) ([]float64, error) {
+	return PercentWithContext(context.Background(), interval, percpu)
+}
+
+func PercentWithContext(ctx context.Context, interval time.Duration, percpu bool) ([]float64, error) {
+	if interval <= 0 {
+		return percentUsedFromLastCall(percpu)
+	}
+
+	// Get CPU usage at the start of the interval.
+	cpuTimes1, err := Times(percpu)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := common.Sleep(ctx, interval); err != nil {
+		return nil, err
+	}
+
+	// And at the end of the interval.
+	cpuTimes2, err := Times(percpu)
+	if err != nil {
+		return nil, err
+	}
+
+	return calculateAllBusy(cpuTimes1, cpuTimes2)
+}
+
+func percentUsedFromLastCall(percpu bool) ([]float64, error) {
+	cpuTimes, err := Times(percpu)
+	if err != nil {
+		return nil, err
+	}
+	lastCPUPercent.Lock()
+	defer lastCPUPercent.Unlock()
+	var lastTimes []TimesStat
+	if percpu {
+		lastTimes = lastCPUPercent.lastPerCPUTimes
+		lastCPUPercent.lastPerCPUTimes = cpuTimes
+	} else {
+		lastTimes = lastCPUPercent.lastCPUTimes
+		lastCPUPercent.lastCPUTimes = cpuTimes
+	}
+
+	if lastTimes == nil {
+		return nil, fmt.Errorf("error getting times for cpu percent. lastTimes was nil")
+	}
+	return calculateAllBusy(lastTimes, cpuTimes)
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_darwin.go

@@ -0,0 +1,112 @@
+// +build darwin
+
+package cpu
+
+import (
+	"context"
+	"strconv"
+	"strings"
+
+	"github.com/tklauser/go-sysconf"
+	"golang.org/x/sys/unix"
+)
+
+// sys/resource.h
+const (
+	CPUser    = 0
+	CPNice    = 1
+	CPSys     = 2
+	CPIntr    = 3
+	CPIdle    = 4
+	CPUStates = 5
+)
+
+// default value. from time.h
+var ClocksPerSec = float64(128)
+
+func init() {
+	clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
+	// ignore errors
+	if err == nil {
+		ClocksPerSec = float64(clkTck)
+	}
+}
+
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	if percpu {
+		return perCPUTimes()
+	}
+
+	return allCPUTimes()
+}
+
+// Returns only one CPUInfoStat on FreeBSD
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	var ret []InfoStat
+
+	c := InfoStat{}
+	c.ModelName, _ = unix.Sysctl("machdep.cpu.brand_string")
+	family, _ := unix.SysctlUint32("machdep.cpu.family")
+	c.Family = strconv.FormatUint(uint64(family), 10)
+	model, _ := unix.SysctlUint32("machdep.cpu.model")
+	c.Model = strconv.FormatUint(uint64(model), 10)
+	stepping, _ := unix.SysctlUint32("machdep.cpu.stepping")
+	c.Stepping = int32(stepping)
+	features, err := unix.Sysctl("machdep.cpu.features")
+	if err == nil {
+		for _, v := range strings.Fields(features) {
+			c.Flags = append(c.Flags, strings.ToLower(v))
+		}
+	}
+	leaf7Features, err := unix.Sysctl("machdep.cpu.leaf7_features")
+	if err == nil {
+		for _, v := range strings.Fields(leaf7Features) {
+			c.Flags = append(c.Flags, strings.ToLower(v))
+		}
+	}
+	extfeatures, err := unix.Sysctl("machdep.cpu.extfeatures")
+	if err == nil {
+		for _, v := range strings.Fields(extfeatures) {
+			c.Flags = append(c.Flags, strings.ToLower(v))
+		}
+	}
+	cores, _ := unix.SysctlUint32("machdep.cpu.core_count")
+	c.Cores = int32(cores)
+	cacheSize, _ := unix.SysctlUint32("machdep.cpu.cache.size")
+	c.CacheSize = int32(cacheSize)
+	c.VendorID, _ = unix.Sysctl("machdep.cpu.vendor")
+
+	// Use the rated frequency of the CPU. This is a static value and does not
+	// account for low power or Turbo Boost modes.
+	cpuFrequency, err := unix.SysctlUint64("hw.cpufrequency")
+	if err != nil {
+		return ret, err
+	}
+	c.Mhz = float64(cpuFrequency) / 1000000.0
+
+	return append(ret, c), nil
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	var cpuArgument string
+	if logical {
+		cpuArgument = "hw.logicalcpu"
+	} else {
+		cpuArgument = "hw.physicalcpu"
+	}
+
+	count, err := unix.SysctlUint32(cpuArgument)
+	if err != nil {
+		return 0, err
+	}
+
+	return int(count), nil
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_darwin_cgo.go

@@ -0,0 +1,112 @@
+// +build darwin
+// +build cgo
+
+package cpu
+
+/*
+#include <stdlib.h>
+#include <sys/sysctl.h>
+#include <sys/mount.h>
+#include <mach/mach_init.h>
+#include <mach/mach_host.h>
+#include <mach/host_info.h>
+#include <TargetConditionals.h>
+#if TARGET_OS_MAC
+#include <libproc.h>
+#endif
+#include <mach/processor_info.h>
+#include <mach/vm_map.h>
+*/
+import "C"
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"unsafe"
+)
+
+// these CPU times for darwin is borrowed from influxdb/telegraf.
+
+func perCPUTimes() ([]TimesStat, error) {
+	var (
+		count   C.mach_msg_type_number_t
+		cpuload *C.processor_cpu_load_info_data_t
+		ncpu    C.natural_t
+	)
+
+	status := C.host_processor_info(C.host_t(C.mach_host_self()),
+		C.PROCESSOR_CPU_LOAD_INFO,
+		&ncpu,
+		(*C.processor_info_array_t)(unsafe.Pointer(&cpuload)),
+		&count)
+
+	if status != C.KERN_SUCCESS {
+		return nil, fmt.Errorf("host_processor_info error=%d", status)
+	}
+
+	// jump through some cgo casting hoops and ensure we properly free
+	// the memory that cpuload points to
+	target := C.vm_map_t(C.mach_task_self_)
+	address := C.vm_address_t(uintptr(unsafe.Pointer(cpuload)))
+	defer C.vm_deallocate(target, address, C.vm_size_t(ncpu))
+
+	// the body of struct processor_cpu_load_info
+	// aka processor_cpu_load_info_data_t
+	var cpu_ticks [C.CPU_STATE_MAX]uint32
+
+	// copy the cpuload array to a []byte buffer
+	// where we can binary.Read the data
+	size := int(ncpu) * binary.Size(cpu_ticks)
+	buf := (*[1 << 30]byte)(unsafe.Pointer(cpuload))[:size:size]
+
+	bbuf := bytes.NewBuffer(buf)
+
+	var ret []TimesStat
+
+	for i := 0; i < int(ncpu); i++ {
+		err := binary.Read(bbuf, binary.LittleEndian, &cpu_ticks)
+		if err != nil {
+			return nil, err
+		}
+
+		c := TimesStat{
+			CPU:    fmt.Sprintf("cpu%d", i),
+			User:   float64(cpu_ticks[C.CPU_STATE_USER]) / ClocksPerSec,
+			System: float64(cpu_ticks[C.CPU_STATE_SYSTEM]) / ClocksPerSec,
+			Nice:   float64(cpu_ticks[C.CPU_STATE_NICE]) / ClocksPerSec,
+			Idle:   float64(cpu_ticks[C.CPU_STATE_IDLE]) / ClocksPerSec,
+		}
+
+		ret = append(ret, c)
+	}
+
+	return ret, nil
+}
+
+func allCPUTimes() ([]TimesStat, error) {
+	var count C.mach_msg_type_number_t
+	var cpuload C.host_cpu_load_info_data_t
+
+	count = C.HOST_CPU_LOAD_INFO_COUNT
+
+	status := C.host_statistics(C.host_t(C.mach_host_self()),
+		C.HOST_CPU_LOAD_INFO,
+		C.host_info_t(unsafe.Pointer(&cpuload)),
+		&count)
+
+	if status != C.KERN_SUCCESS {
+		return nil, fmt.Errorf("host_statistics error=%d", status)
+	}
+
+	c := TimesStat{
+		CPU:    "cpu-total",
+		User:   float64(cpuload.cpu_ticks[C.CPU_STATE_USER]) / ClocksPerSec,
+		System: float64(cpuload.cpu_ticks[C.CPU_STATE_SYSTEM]) / ClocksPerSec,
+		Nice:   float64(cpuload.cpu_ticks[C.CPU_STATE_NICE]) / ClocksPerSec,
+		Idle:   float64(cpuload.cpu_ticks[C.CPU_STATE_IDLE]) / ClocksPerSec,
+	}
+
+	return []TimesStat{c}, nil
+
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_darwin_nocgo.go

@@ -0,0 +1,14 @@
+// +build darwin
+// +build !cgo
+
+package cpu
+
+import "github.com/shirou/gopsutil/internal/common"
+
+func perCPUTimes() ([]TimesStat, error) {
+	return []TimesStat{}, common.ErrNotImplementedError
+}
+
+func allCPUTimes() ([]TimesStat, error) {
+	return []TimesStat{}, common.ErrNotImplementedError
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_dragonfly.go

@@ -0,0 +1,154 @@
+package cpu
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"regexp"
+	"runtime"
+	"strconv"
+	"strings"
+	"unsafe"
+
+	"github.com/shirou/gopsutil/internal/common"
+	"github.com/tklauser/go-sysconf"
+	"golang.org/x/sys/unix"
+)
+
+var ClocksPerSec = float64(128)
+var cpuMatch = regexp.MustCompile(`^CPU:`)
+var originMatch = regexp.MustCompile(`Origin\s*=\s*"(.+)"\s+Id\s*=\s*(.+)\s+Stepping\s*=\s*(.+)`)
+var featuresMatch = regexp.MustCompile(`Features=.+<(.+)>`)
+var featuresMatch2 = regexp.MustCompile(`Features2=[a-f\dx]+<(.+)>`)
+var cpuEnd = regexp.MustCompile(`^Trying to mount root`)
+var cpuTimesSize int
+var emptyTimes cpuTimes
+
+func init() {
+	clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
+	// ignore errors
+	if err == nil {
+		ClocksPerSec = float64(clkTck)
+	}
+}
+
+func timeStat(name string, t *cpuTimes) *TimesStat {
+	return &TimesStat{
+		User:   float64(t.User) / ClocksPerSec,
+		Nice:   float64(t.Nice) / ClocksPerSec,
+		System: float64(t.Sys) / ClocksPerSec,
+		Idle:   float64(t.Idle) / ClocksPerSec,
+		Irq:    float64(t.Intr) / ClocksPerSec,
+		CPU:    name,
+	}
+}
+
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	if percpu {
+		buf, err := unix.SysctlRaw("kern.cp_times")
+		if err != nil {
+			return nil, err
+		}
+
+		// We can't do this in init due to the conflict with cpu.init()
+		if cpuTimesSize == 0 {
+			cpuTimesSize = int(reflect.TypeOf(cpuTimes{}).Size())
+		}
+
+		ncpus := len(buf) / cpuTimesSize
+		ret := make([]TimesStat, 0, ncpus)
+		for i := 0; i < ncpus; i++ {
+			times := (*cpuTimes)(unsafe.Pointer(&buf[i*cpuTimesSize]))
+			if *times == emptyTimes {
+				// CPU not present
+				continue
+			}
+			ret = append(ret, *timeStat(fmt.Sprintf("cpu%d", len(ret)), times))
+		}
+		return ret, nil
+	}
+
+	buf, err := unix.SysctlRaw("kern.cp_time")
+	if err != nil {
+		return nil, err
+	}
+
+	times := (*cpuTimes)(unsafe.Pointer(&buf[0]))
+	return []TimesStat{*timeStat("cpu-total", times)}, nil
+}
+
+// Returns only one InfoStat on DragonflyBSD.  The information regarding core
+// count, however is accurate and it is assumed that all InfoStat attributes
+// are the same across CPUs.
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	const dmesgBoot = "/var/run/dmesg.boot"
+
+	c, err := parseDmesgBoot(dmesgBoot)
+	if err != nil {
+		return nil, err
+	}
+
+	var u32 uint32
+	if u32, err = unix.SysctlUint32("hw.clockrate"); err != nil {
+		return nil, err
+	}
+	c.Mhz = float64(u32)
+
+	var num int
+	var buf string
+	if buf, err = unix.Sysctl("hw.cpu_topology.tree"); err != nil {
+		return nil, err
+	}
+	num = strings.Count(buf, "CHIP")
+	c.Cores = int32(strings.Count(string(buf), "CORE") / num)
+
+	if c.ModelName, err = unix.Sysctl("hw.model"); err != nil {
+		return nil, err
+	}
+
+	ret := make([]InfoStat, num)
+	for i := 0; i < num; i++ {
+		ret[i] = c
+	}
+
+	return ret, nil
+}
+
+func parseDmesgBoot(fileName string) (InfoStat, error) {
+	c := InfoStat{}
+	lines, _ := common.ReadLines(fileName)
+	for _, line := range lines {
+		if matches := cpuEnd.FindStringSubmatch(line); matches != nil {
+			break
+		} else if matches := originMatch.FindStringSubmatch(line); matches != nil {
+			c.VendorID = matches[1]
+			t, err := strconv.ParseInt(matches[2], 10, 32)
+			if err != nil {
+				return c, fmt.Errorf("unable to parse DragonflyBSD CPU stepping information from %q: %v", line, err)
+			}
+			c.Stepping = int32(t)
+		} else if matches := featuresMatch.FindStringSubmatch(line); matches != nil {
+			for _, v := range strings.Split(matches[1], ",") {
+				c.Flags = append(c.Flags, strings.ToLower(v))
+			}
+		} else if matches := featuresMatch2.FindStringSubmatch(line); matches != nil {
+			for _, v := range strings.Split(matches[1], ",") {
+				c.Flags = append(c.Flags, strings.ToLower(v))
+			}
+		}
+	}
+
+	return c, nil
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	return runtime.NumCPU(), nil
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_dragonfly_amd64.go

@@ -0,0 +1,9 @@
+package cpu
+
+type cpuTimes struct {
+	User uint64
+	Nice uint64
+	Sys  uint64
+	Intr uint64
+	Idle uint64
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_fallback.go

@@ -0,0 +1,30 @@
+// +build !darwin,!linux,!freebsd,!openbsd,!solaris,!windows,!dragonfly
+
+package cpu
+
+import (
+	"context"
+	"runtime"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	return []TimesStat{}, common.ErrNotImplementedError
+}
+
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	return []InfoStat{}, common.ErrNotImplementedError
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	return runtime.NumCPU(), nil
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_freebsd.go

@@ -0,0 +1,166 @@
+package cpu
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"regexp"
+	"runtime"
+	"strconv"
+	"strings"
+	"unsafe"
+
+	"github.com/shirou/gopsutil/internal/common"
+	"github.com/tklauser/go-sysconf"
+	"golang.org/x/sys/unix"
+)
+
+var ClocksPerSec = float64(128)
+var cpuMatch = regexp.MustCompile(`^CPU:`)
+var originMatch = regexp.MustCompile(`Origin\s*=\s*"(.+)"\s+Id\s*=\s*(.+)\s+Family\s*=\s*(.+)\s+Model\s*=\s*(.+)\s+Stepping\s*=\s*(.+)`)
+var featuresMatch = regexp.MustCompile(`Features=.+<(.+)>`)
+var featuresMatch2 = regexp.MustCompile(`Features2=[a-f\dx]+<(.+)>`)
+var cpuEnd = regexp.MustCompile(`^Trying to mount root`)
+var cpuCores = regexp.MustCompile(`FreeBSD/SMP: (\d*) package\(s\) x (\d*) core\(s\)`)
+var cpuTimesSize int
+var emptyTimes cpuTimes
+
+func init() {
+	clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
+	// ignore errors
+	if err == nil {
+		ClocksPerSec = float64(clkTck)
+	}
+}
+
+func timeStat(name string, t *cpuTimes) *TimesStat {
+	return &TimesStat{
+		User:   float64(t.User) / ClocksPerSec,
+		Nice:   float64(t.Nice) / ClocksPerSec,
+		System: float64(t.Sys) / ClocksPerSec,
+		Idle:   float64(t.Idle) / ClocksPerSec,
+		Irq:    float64(t.Intr) / ClocksPerSec,
+		CPU:    name,
+	}
+}
+
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	if percpu {
+		buf, err := unix.SysctlRaw("kern.cp_times")
+		if err != nil {
+			return nil, err
+		}
+
+		// We can't do this in init due to the conflict with cpu.init()
+		if cpuTimesSize == 0 {
+			cpuTimesSize = int(reflect.TypeOf(cpuTimes{}).Size())
+		}
+
+		ncpus := len(buf) / cpuTimesSize
+		ret := make([]TimesStat, 0, ncpus)
+		for i := 0; i < ncpus; i++ {
+			times := (*cpuTimes)(unsafe.Pointer(&buf[i*cpuTimesSize]))
+			if *times == emptyTimes {
+				// CPU not present
+				continue
+			}
+			ret = append(ret, *timeStat(fmt.Sprintf("cpu%d", len(ret)), times))
+		}
+		return ret, nil
+	}
+
+	buf, err := unix.SysctlRaw("kern.cp_time")
+	if err != nil {
+		return nil, err
+	}
+
+	times := (*cpuTimes)(unsafe.Pointer(&buf[0]))
+	return []TimesStat{*timeStat("cpu-total", times)}, nil
+}
+
+// Returns only one InfoStat on FreeBSD.  The information regarding core
+// count, however is accurate and it is assumed that all InfoStat attributes
+// are the same across CPUs.
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	const dmesgBoot = "/var/run/dmesg.boot"
+
+	c, num, err := parseDmesgBoot(dmesgBoot)
+	if err != nil {
+		return nil, err
+	}
+
+	var u32 uint32
+	if u32, err = unix.SysctlUint32("hw.clockrate"); err != nil {
+		return nil, err
+	}
+	c.Mhz = float64(u32)
+
+	if u32, err = unix.SysctlUint32("hw.ncpu"); err != nil {
+		return nil, err
+	}
+	c.Cores = int32(u32)
+
+	if c.ModelName, err = unix.Sysctl("hw.model"); err != nil {
+		return nil, err
+	}
+
+	ret := make([]InfoStat, num)
+	for i := 0; i < num; i++ {
+		ret[i] = c
+	}
+
+	return ret, nil
+}
+
+func parseDmesgBoot(fileName string) (InfoStat, int, error) {
+	c := InfoStat{}
+	lines, _ := common.ReadLines(fileName)
+	cpuNum := 1 // default cpu num is 1
+	for _, line := range lines {
+		if matches := cpuEnd.FindStringSubmatch(line); matches != nil {
+			break
+		} else if matches := originMatch.FindStringSubmatch(line); matches != nil {
+			c.VendorID = matches[1]
+			c.Family = matches[3]
+			c.Model = matches[4]
+			t, err := strconv.ParseInt(matches[5], 10, 32)
+			if err != nil {
+				return c, 0, fmt.Errorf("unable to parse FreeBSD CPU stepping information from %q: %v", line, err)
+			}
+			c.Stepping = int32(t)
+		} else if matches := featuresMatch.FindStringSubmatch(line); matches != nil {
+			for _, v := range strings.Split(matches[1], ",") {
+				c.Flags = append(c.Flags, strings.ToLower(v))
+			}
+		} else if matches := featuresMatch2.FindStringSubmatch(line); matches != nil {
+			for _, v := range strings.Split(matches[1], ",") {
+				c.Flags = append(c.Flags, strings.ToLower(v))
+			}
+		} else if matches := cpuCores.FindStringSubmatch(line); matches != nil {
+			t, err := strconv.ParseInt(matches[1], 10, 32)
+			if err != nil {
+				return c, 0, fmt.Errorf("unable to parse FreeBSD CPU Nums from %q: %v", line, err)
+			}
+			cpuNum = int(t)
+			t2, err := strconv.ParseInt(matches[2], 10, 32)
+			if err != nil {
+				return c, 0, fmt.Errorf("unable to parse FreeBSD CPU cores from %q: %v", line, err)
+			}
+			c.Cores = int32(t2)
+		}
+	}
+
+	return c, cpuNum, nil
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	return runtime.NumCPU(), nil
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_freebsd_386.go

@@ -0,0 +1,9 @@
+package cpu
+
+type cpuTimes struct {
+	User uint32
+	Nice uint32
+	Sys  uint32
+	Intr uint32
+	Idle uint32
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_freebsd_amd64.go

@@ -0,0 +1,9 @@
+package cpu
+
+type cpuTimes struct {
+	User uint64
+	Nice uint64
+	Sys  uint64
+	Intr uint64
+	Idle uint64
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_freebsd_arm.go

@@ -0,0 +1,9 @@
+package cpu
+
+type cpuTimes struct {
+	User uint32
+	Nice uint32
+	Sys  uint32
+	Intr uint32
+	Idle uint32
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_freebsd_arm64.go

@@ -0,0 +1,9 @@
+package cpu
+
+type cpuTimes struct {
+	User uint64
+	Nice uint64
+	Sys  uint64
+	Intr uint64
+	Idle uint64
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_linux.go

@@ -0,0 +1,406 @@
+// +build linux
+
+package cpu
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/shirou/gopsutil/internal/common"
+	"github.com/tklauser/go-sysconf"
+)
+
+var ClocksPerSec = float64(100)
+
+func init() {
+	clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
+	// ignore errors
+	if err == nil {
+		ClocksPerSec = float64(clkTck)
+	}
+}
+
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	filename := common.HostProc("stat")
+	var lines = []string{}
+	if percpu {
+		statlines, err := common.ReadLines(filename)
+		if err != nil || len(statlines) < 2 {
+			return []TimesStat{}, nil
+		}
+		for _, line := range statlines[1:] {
+			if !strings.HasPrefix(line, "cpu") {
+				break
+			}
+			lines = append(lines, line)
+		}
+	} else {
+		lines, _ = common.ReadLinesOffsetN(filename, 0, 1)
+	}
+
+	ret := make([]TimesStat, 0, len(lines))
+
+	for _, line := range lines {
+		ct, err := parseStatLine(line)
+		if err != nil {
+			continue
+		}
+		ret = append(ret, *ct)
+
+	}
+	return ret, nil
+}
+
+func sysCPUPath(cpu int32, relPath string) string {
+	return common.HostSys(fmt.Sprintf("devices/system/cpu/cpu%d", cpu), relPath)
+}
+
+func finishCPUInfo(c *InfoStat) error {
+	var lines []string
+	var err error
+	var value float64
+
+	if len(c.CoreID) == 0 {
+		lines, err = common.ReadLines(sysCPUPath(c.CPU, "topology/core_id"))
+		if err == nil {
+			c.CoreID = lines[0]
+		}
+	}
+
+	// override the value of c.Mhz with cpufreq/cpuinfo_max_freq regardless
+	// of the value from /proc/cpuinfo because we want to report the maximum
+	// clock-speed of the CPU for c.Mhz, matching the behaviour of Windows
+	lines, err = common.ReadLines(sysCPUPath(c.CPU, "cpufreq/cpuinfo_max_freq"))
+	// if we encounter errors below such as there are no cpuinfo_max_freq file,
+	// we just ignore. so let Mhz is 0.
+	if err != nil || len(lines) == 0 {
+		return nil
+	}
+	value, err = strconv.ParseFloat(lines[0], 64)
+	if err != nil {
+		return nil
+	}
+	c.Mhz = value / 1000.0 // value is in kHz
+	if c.Mhz > 9999 {
+		c.Mhz = c.Mhz / 1000.0 // value in Hz
+	}
+	return nil
+}
+
+// CPUInfo on linux will return 1 item per physical thread.
+//
+// CPUs have three levels of counting: sockets, cores, threads.
+// Cores with HyperThreading count as having 2 threads per core.
+// Sockets often come with many physical CPU cores.
+// For example a single socket board with two cores each with HT will
+// return 4 CPUInfoStat structs on Linux and the "Cores" field set to 1.
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	filename := common.HostProc("cpuinfo")
+	lines, _ := common.ReadLines(filename)
+
+	var ret []InfoStat
+	var processorName string
+
+	c := InfoStat{CPU: -1, Cores: 1}
+	for _, line := range lines {
+		fields := strings.Split(line, ":")
+		if len(fields) < 2 {
+			continue
+		}
+		key := strings.TrimSpace(fields[0])
+		value := strings.TrimSpace(fields[1])
+
+		switch key {
+		case "Processor":
+			processorName = value
+		case "processor":
+			if c.CPU >= 0 {
+				err := finishCPUInfo(&c)
+				if err != nil {
+					return ret, err
+				}
+				ret = append(ret, c)
+			}
+			c = InfoStat{Cores: 1, ModelName: processorName}
+			t, err := strconv.ParseInt(value, 10, 64)
+			if err != nil {
+				return ret, err
+			}
+			c.CPU = int32(t)
+		case "vendorId", "vendor_id":
+			c.VendorID = value
+		case "CPU implementer":
+			if v, err := strconv.ParseUint(value, 0, 8); err == nil {
+				switch v {
+				case 0x41:
+					c.VendorID = "ARM"
+				case 0x42:
+					c.VendorID = "Broadcom"
+				case 0x43:
+					c.VendorID = "Cavium"
+				case 0x44:
+					c.VendorID = "DEC"
+				case 0x46:
+					c.VendorID = "Fujitsu"
+				case 0x48:
+					c.VendorID = "HiSilicon"
+				case 0x49:
+					c.VendorID = "Infineon"
+				case 0x4d:
+					c.VendorID = "Motorola/Freescale"
+				case 0x4e:
+					c.VendorID = "NVIDIA"
+				case 0x50:
+					c.VendorID = "APM"
+				case 0x51:
+					c.VendorID = "Qualcomm"
+				case 0x56:
+					c.VendorID = "Marvell"
+				case 0x61:
+					c.VendorID = "Apple"
+				case 0x69:
+					c.VendorID = "Intel"
+				case 0xc0:
+					c.VendorID = "Ampere"
+				}
+			}
+		case "cpu family":
+			c.Family = value
+		case "model", "CPU part":
+			c.Model = value
+		case "model name", "cpu":
+			c.ModelName = value
+			if strings.Contains(value, "POWER8") ||
+				strings.Contains(value, "POWER7") {
+				c.Model = strings.Split(value, " ")[0]
+				c.Family = "POWER"
+				c.VendorID = "IBM"
+			}
+		case "stepping", "revision", "CPU revision":
+			val := value
+
+			if key == "revision" {
+				val = strings.Split(value, ".")[0]
+			}
+
+			t, err := strconv.ParseInt(val, 10, 64)
+			if err != nil {
+				return ret, err
+			}
+			c.Stepping = int32(t)
+		case "cpu MHz", "clock":
+			// treat this as the fallback value, thus we ignore error
+			if t, err := strconv.ParseFloat(strings.Replace(value, "MHz", "", 1), 64); err == nil {
+				c.Mhz = t
+			}
+		case "cache size":
+			t, err := strconv.ParseInt(strings.Replace(value, " KB", "", 1), 10, 64)
+			if err != nil {
+				return ret, err
+			}
+			c.CacheSize = int32(t)
+		case "physical id":
+			c.PhysicalID = value
+		case "core id":
+			c.CoreID = value
+		case "flags", "Features":
+			c.Flags = strings.FieldsFunc(value, func(r rune) bool {
+				return r == ',' || r == ' '
+			})
+		case "microcode":
+			c.Microcode = value
+		}
+	}
+	if c.CPU >= 0 {
+		err := finishCPUInfo(&c)
+		if err != nil {
+			return ret, err
+		}
+		ret = append(ret, c)
+	}
+	return ret, nil
+}
+
+func parseStatLine(line string) (*TimesStat, error) {
+	fields := strings.Fields(line)
+
+	if len(fields) == 0 {
+		return nil, errors.New("stat does not contain cpu info")
+	}
+
+	if strings.HasPrefix(fields[0], "cpu") == false {
+		return nil, errors.New("not contain cpu")
+	}
+
+	cpu := fields[0]
+	if cpu == "cpu" {
+		cpu = "cpu-total"
+	}
+	user, err := strconv.ParseFloat(fields[1], 64)
+	if err != nil {
+		return nil, err
+	}
+	nice, err := strconv.ParseFloat(fields[2], 64)
+	if err != nil {
+		return nil, err
+	}
+	system, err := strconv.ParseFloat(fields[3], 64)
+	if err != nil {
+		return nil, err
+	}
+	idle, err := strconv.ParseFloat(fields[4], 64)
+	if err != nil {
+		return nil, err
+	}
+	iowait, err := strconv.ParseFloat(fields[5], 64)
+	if err != nil {
+		return nil, err
+	}
+	irq, err := strconv.ParseFloat(fields[6], 64)
+	if err != nil {
+		return nil, err
+	}
+	softirq, err := strconv.ParseFloat(fields[7], 64)
+	if err != nil {
+		return nil, err
+	}
+
+	ct := &TimesStat{
+		CPU:     cpu,
+		User:    user / ClocksPerSec,
+		Nice:    nice / ClocksPerSec,
+		System:  system / ClocksPerSec,
+		Idle:    idle / ClocksPerSec,
+		Iowait:  iowait / ClocksPerSec,
+		Irq:     irq / ClocksPerSec,
+		Softirq: softirq / ClocksPerSec,
+	}
+	if len(fields) > 8 { // Linux >= 2.6.11
+		steal, err := strconv.ParseFloat(fields[8], 64)
+		if err != nil {
+			return nil, err
+		}
+		ct.Steal = steal / ClocksPerSec
+	}
+	if len(fields) > 9 { // Linux >= 2.6.24
+		guest, err := strconv.ParseFloat(fields[9], 64)
+		if err != nil {
+			return nil, err
+		}
+		ct.Guest = guest / ClocksPerSec
+	}
+	if len(fields) > 10 { // Linux >= 3.2.0
+		guestNice, err := strconv.ParseFloat(fields[10], 64)
+		if err != nil {
+			return nil, err
+		}
+		ct.GuestNice = guestNice / ClocksPerSec
+	}
+
+	return ct, nil
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	if logical {
+		ret := 0
+		// https://github.com/giampaolo/psutil/blob/d01a9eaa35a8aadf6c519839e987a49d8be2d891/psutil/_pslinux.py#L599
+		procCpuinfo := common.HostProc("cpuinfo")
+		lines, err := common.ReadLines(procCpuinfo)
+		if err == nil {
+			for _, line := range lines {
+				line = strings.ToLower(line)
+				if strings.HasPrefix(line, "processor")  {
+					_, err = strconv.Atoi(strings.TrimSpace(line[strings.IndexByte(line, ':')+1:]))
+					if err == nil {
+						ret++
+					}
+				}
+			}
+		}
+		if ret == 0 {
+			procStat := common.HostProc("stat")
+			lines, err = common.ReadLines(procStat)
+			if err != nil {
+				return 0, err
+			}
+			for _, line := range lines {
+				if len(line) >= 4 && strings.HasPrefix(line, "cpu") && '0' <= line[3] && line[3] <= '9' { // `^cpu\d` regexp matching
+					ret++
+				}
+			}
+		}
+		return ret, nil
+	}
+	// physical cores
+	// https://github.com/giampaolo/psutil/blob/8415355c8badc9c94418b19bdf26e622f06f0cce/psutil/_pslinux.py#L615-L628
+	var threadSiblingsLists = make(map[string]bool)
+	// These 2 files are the same but */core_cpus_list is newer while */thread_siblings_list is deprecated and may disappear in the future.
+	// https://www.kernel.org/doc/Documentation/admin-guide/cputopology.rst
+	// https://github.com/giampaolo/psutil/pull/1727#issuecomment-707624964
+	// https://lkml.org/lkml/2019/2/26/41
+	for _, glob := range []string{"devices/system/cpu/cpu[0-9]*/topology/core_cpus_list", "devices/system/cpu/cpu[0-9]*/topology/thread_siblings_list"} {
+		if files, err := filepath.Glob(common.HostSys(glob)); err == nil {
+			for _, file := range files {
+				lines, err := common.ReadLines(file)
+				if err != nil || len(lines) != 1 {
+					continue
+				}
+				threadSiblingsLists[lines[0]] = true
+			}
+			ret := len(threadSiblingsLists)
+			if ret != 0 {
+				return ret, nil
+			}
+		}
+	}
+	// https://github.com/giampaolo/psutil/blob/122174a10b75c9beebe15f6c07dcf3afbe3b120d/psutil/_pslinux.py#L631-L652
+	filename := common.HostProc("cpuinfo")
+	lines, err := common.ReadLines(filename)
+	if err != nil {
+		return 0, err
+	}
+	mapping := make(map[int]int)
+	currentInfo := make(map[string]int)
+	for _, line := range lines {
+		line = strings.ToLower(strings.TrimSpace(line))
+		if line == "" {
+			// new section
+			id, okID := currentInfo["physical id"]
+			cores, okCores := currentInfo["cpu cores"]
+			if okID && okCores {
+				mapping[id] = cores
+			}
+			currentInfo = make(map[string]int)
+			continue
+		}
+		fields := strings.Split(line, ":")
+		if len(fields) < 2 {
+			continue
+		}
+		fields[0] = strings.TrimSpace(fields[0])
+		if fields[0] == "physical id" || fields[0] == "cpu cores" {
+			val, err := strconv.Atoi(strings.TrimSpace(fields[1]))
+			if err != nil {
+				continue
+			}
+			currentInfo[fields[0]] = val
+		}
+	}
+	ret := 0
+	for _, v := range mapping {
+		ret += v
+	}
+	return ret, nil
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_openbsd.go

@@ -0,0 +1,178 @@
+// +build openbsd
+
+package cpu
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"fmt"
+	"runtime"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"github.com/shirou/gopsutil/internal/common"
+	"github.com/tklauser/go-sysconf"
+	"golang.org/x/sys/unix"
+)
+
+// sys/sched.h
+var (
+	CPUser    = 0
+	CPNice    = 1
+	CPSys     = 2
+	CPIntr    = 3
+	CPIdle    = 4
+	CPUStates = 5
+)
+
+// sys/sysctl.h
+const (
+	CTLKern     = 1  // "high kernel": proc, limits
+	CTLHw       = 6  // CTL_HW
+	SMT         = 24 // HW_SMT
+	KernCptime  = 40 // KERN_CPTIME
+	KernCptime2 = 71 // KERN_CPTIME2
+)
+
+var ClocksPerSec = float64(128)
+
+func init() {
+	clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
+	// ignore errors
+	if err == nil {
+		ClocksPerSec = float64(clkTck)
+	}
+
+	func() {
+		v, err := unix.Sysctl("kern.osrelease") // can't reuse host.PlatformInformation because of circular import
+		if err != nil {
+			return
+		}
+		v = strings.ToLower(v)
+		version, err := strconv.ParseFloat(v, 64)
+		if err != nil {
+			return
+		}
+		if version >= 6.4 {
+			CPIntr = 4
+			CPIdle = 5
+			CPUStates = 6
+		}
+	}()
+}
+
+func smt() (bool, error) {
+	mib := []int32{CTLHw, SMT}
+	buf, _, err := common.CallSyscall(mib)
+	if err != nil {
+		return false, err
+	}
+
+	var ret bool
+	br := bytes.NewReader(buf)
+	if err := binary.Read(br, binary.LittleEndian, &ret); err != nil {
+		return false, err
+	}
+
+	return ret, nil
+}
+
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	var ret []TimesStat
+
+	var ncpu int
+	if percpu {
+		ncpu, _ = Counts(true)
+	} else {
+		ncpu = 1
+	}
+
+	smt, err := smt()
+	if err == syscall.EOPNOTSUPP {
+		// if hw.smt is not applicable for this platform (e.g. i386),
+		// pretend it's enabled
+		smt = true
+	} else if err != nil {
+		return nil, err
+	}
+
+	for i := 0; i < ncpu; i++ {
+		j := i
+		if !smt {
+			j *= 2
+		}
+
+		var cpuTimes = make([]int32, CPUStates)
+		var mib []int32
+		if percpu {
+			mib = []int32{CTLKern, KernCptime2, int32(j)}
+		} else {
+			mib = []int32{CTLKern, KernCptime}
+		}
+		buf, _, err := common.CallSyscall(mib)
+		if err != nil {
+			return ret, err
+		}
+
+		br := bytes.NewReader(buf)
+		err = binary.Read(br, binary.LittleEndian, &cpuTimes)
+		if err != nil {
+			return ret, err
+		}
+		c := TimesStat{
+			User:   float64(cpuTimes[CPUser]) / ClocksPerSec,
+			Nice:   float64(cpuTimes[CPNice]) / ClocksPerSec,
+			System: float64(cpuTimes[CPSys]) / ClocksPerSec,
+			Idle:   float64(cpuTimes[CPIdle]) / ClocksPerSec,
+			Irq:    float64(cpuTimes[CPIntr]) / ClocksPerSec,
+		}
+		if percpu {
+			c.CPU = fmt.Sprintf("cpu%d", j)
+		} else {
+			c.CPU = "cpu-total"
+		}
+		ret = append(ret, c)
+	}
+
+	return ret, nil
+}
+
+// Returns only one (minimal) CPUInfoStat on OpenBSD
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	var ret []InfoStat
+	var err error
+
+	c := InfoStat{}
+
+	mhz, err := unix.SysctlUint32("hw.cpuspeed")
+	if err != nil {
+		return nil, err
+	}
+	c.Mhz = float64(mhz)
+
+	ncpu, err := unix.SysctlUint32("hw.ncpuonline")
+	if err != nil {
+		return nil, err
+	}
+	c.Cores = int32(ncpu)
+
+	if c.ModelName, err = unix.Sysctl("hw.model"); err != nil {
+		return nil, err
+	}
+
+	return append(ret, c), nil
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	return runtime.NumCPU(), nil
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_solaris.go

@@ -0,0 +1,281 @@
+package cpu
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os/exec"
+	"regexp"
+	"runtime"
+	"sort"
+	"strconv"
+	"strings"
+
+	"github.com/tklauser/go-sysconf"
+)
+
+var ClocksPerSec = float64(128)
+
+func init() {
+	clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
+	// ignore errors
+	if err == nil {
+		ClocksPerSec = float64(clkTck)
+	}
+}
+
+//sum all values in a float64 map with float64 keys
+func msum(x map[float64]float64) float64 {
+	total := 0.0
+	for _, y := range x {
+		total += y
+	}
+	return total
+}
+
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	kstatSys, err := exec.LookPath("kstat")
+	if err != nil {
+		return nil, fmt.Errorf("cannot find kstat: %s", err)
+	}
+	cpu := make(map[float64]float64)
+	idle := make(map[float64]float64)
+	user := make(map[float64]float64)
+	kern := make(map[float64]float64)
+	iowt := make(map[float64]float64)
+	//swap := make(map[float64]float64)
+	kstatSysOut, err := invoke.CommandWithContext(ctx, kstatSys, "-p", "cpu_stat:*:*:/^idle$|^user$|^kernel$|^iowait$|^swap$/")
+	if err != nil {
+		return nil, fmt.Errorf("cannot execute kstat: %s", err)
+	}
+	re := regexp.MustCompile(`[:\s]+`)
+	for _, line := range strings.Split(string(kstatSysOut), "\n") {
+		fields := re.Split(line, -1)
+		if fields[0] != "cpu_stat" {
+			continue
+		}
+		cpuNumber, err := strconv.ParseFloat(fields[1], 64)
+		if err != nil {
+			return nil, fmt.Errorf("cannot parse cpu number: %s", err)
+		}
+		cpu[cpuNumber] = cpuNumber
+		switch fields[3] {
+		case "idle":
+			idle[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse idle: %s", err)
+			}
+		case "user":
+			user[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse user: %s", err)
+			}
+		case "kernel":
+			kern[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse kernel: %s", err)
+			}
+		case "iowait":
+			iowt[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse iowait: %s", err)
+			}
+			//not sure how this translates, don't report, add to kernel, something else?
+			/*case "swap":
+			swap[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse swap: %s", err)
+			} */
+		}
+	}
+	ret := make([]TimesStat, 0, len(cpu))
+	if percpu {
+		for _, c := range cpu {
+			ct := &TimesStat{
+				CPU:    fmt.Sprintf("cpu%d", int(cpu[c])),
+				Idle:   idle[c] / ClocksPerSec,
+				User:   user[c] / ClocksPerSec,
+				System: kern[c] / ClocksPerSec,
+				Iowait: iowt[c] / ClocksPerSec,
+			}
+			ret = append(ret, *ct)
+		}
+	} else {
+		ct := &TimesStat{
+			CPU:    "cpu-total",
+			Idle:   msum(idle) / ClocksPerSec,
+			User:   msum(user) / ClocksPerSec,
+			System: msum(kern) / ClocksPerSec,
+			Iowait: msum(iowt) / ClocksPerSec,
+		}
+		ret = append(ret, *ct)
+	}
+	return ret, nil
+}
+
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	psrInfo, err := exec.LookPath("psrinfo")
+	if err != nil {
+		return nil, fmt.Errorf("cannot find psrinfo: %s", err)
+	}
+	psrInfoOut, err := invoke.CommandWithContext(ctx, psrInfo, "-p", "-v")
+	if err != nil {
+		return nil, fmt.Errorf("cannot execute psrinfo: %s", err)
+	}
+
+	isaInfo, err := exec.LookPath("isainfo")
+	if err != nil {
+		return nil, fmt.Errorf("cannot find isainfo: %s", err)
+	}
+	isaInfoOut, err := invoke.CommandWithContext(ctx, isaInfo, "-b", "-v")
+	if err != nil {
+		return nil, fmt.Errorf("cannot execute isainfo: %s", err)
+	}
+
+	procs, err := parseProcessorInfo(string(psrInfoOut))
+	if err != nil {
+		return nil, fmt.Errorf("error parsing psrinfo output: %s", err)
+	}
+
+	flags, err := parseISAInfo(string(isaInfoOut))
+	if err != nil {
+		return nil, fmt.Errorf("error parsing isainfo output: %s", err)
+	}
+
+	result := make([]InfoStat, 0, len(flags))
+	for _, proc := range procs {
+		procWithFlags := proc
+		procWithFlags.Flags = flags
+		result = append(result, procWithFlags)
+	}
+
+	return result, nil
+}
+
+var flagsMatch = regexp.MustCompile(`[\w\.]+`)
+
+func parseISAInfo(cmdOutput string) ([]string, error) {
+	words := flagsMatch.FindAllString(cmdOutput, -1)
+
+	// Sanity check the output
+	if len(words) < 4 || words[1] != "bit" || words[3] != "applications" {
+		return nil, errors.New("attempted to parse invalid isainfo output")
+	}
+
+	flags := make([]string, len(words)-4)
+	for i, val := range words[4:] {
+		flags[i] = val
+	}
+	sort.Strings(flags)
+
+	return flags, nil
+}
+
+var psrInfoMatch = regexp.MustCompile(`The physical processor has (?:([\d]+) virtual processors? \(([\d-]+)\)|([\d]+) cores and ([\d]+) virtual processors[^\n]+)\n(?:\s+ The core has.+\n)*\s+.+ \((\w+) ([\S]+) family (.+) model (.+) step (.+) clock (.+) MHz\)\n[\s]*(.*)`)
+
+const (
+	psrNumCoresOffset   = 1
+	psrNumCoresHTOffset = 3
+	psrNumHTOffset      = 4
+	psrVendorIDOffset   = 5
+	psrFamilyOffset     = 7
+	psrModelOffset      = 8
+	psrStepOffset       = 9
+	psrClockOffset      = 10
+	psrModelNameOffset  = 11
+)
+
+func parseProcessorInfo(cmdOutput string) ([]InfoStat, error) {
+	matches := psrInfoMatch.FindAllStringSubmatch(cmdOutput, -1)
+
+	var infoStatCount int32
+	result := make([]InfoStat, 0, len(matches))
+	for physicalIndex, physicalCPU := range matches {
+		var step int32
+		var clock float64
+
+		if physicalCPU[psrStepOffset] != "" {
+			stepParsed, err := strconv.ParseInt(physicalCPU[psrStepOffset], 10, 32)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse value %q for step as 32-bit integer: %s", physicalCPU[9], err)
+			}
+			step = int32(stepParsed)
+		}
+
+		if physicalCPU[psrClockOffset] != "" {
+			clockParsed, err := strconv.ParseInt(physicalCPU[psrClockOffset], 10, 64)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse value %q for clock as 32-bit integer: %s", physicalCPU[10], err)
+			}
+			clock = float64(clockParsed)
+		}
+
+		var err error
+		var numCores int64
+		var numHT int64
+		switch {
+		case physicalCPU[psrNumCoresOffset] != "":
+			numCores, err = strconv.ParseInt(physicalCPU[psrNumCoresOffset], 10, 32)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse value %q for core count as 32-bit integer: %s", physicalCPU[1], err)
+			}
+
+			for i := 0; i < int(numCores); i++ {
+				result = append(result, InfoStat{
+					CPU:        infoStatCount,
+					PhysicalID: strconv.Itoa(physicalIndex),
+					CoreID:     strconv.Itoa(i),
+					Cores:      1,
+					VendorID:   physicalCPU[psrVendorIDOffset],
+					ModelName:  physicalCPU[psrModelNameOffset],
+					Family:     physicalCPU[psrFamilyOffset],
+					Model:      physicalCPU[psrModelOffset],
+					Stepping:   step,
+					Mhz:        clock,
+				})
+				infoStatCount++
+			}
+		case physicalCPU[psrNumCoresHTOffset] != "":
+			numCores, err = strconv.ParseInt(physicalCPU[psrNumCoresHTOffset], 10, 32)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse value %q for core count as 32-bit integer: %s", physicalCPU[3], err)
+			}
+
+			numHT, err = strconv.ParseInt(physicalCPU[psrNumHTOffset], 10, 32)
+			if err != nil {
+				return nil, fmt.Errorf("cannot parse value %q for hyperthread count as 32-bit integer: %s", physicalCPU[4], err)
+			}
+
+			for i := 0; i < int(numCores); i++ {
+				result = append(result, InfoStat{
+					CPU:        infoStatCount,
+					PhysicalID: strconv.Itoa(physicalIndex),
+					CoreID:     strconv.Itoa(i),
+					Cores:      int32(numHT) / int32(numCores),
+					VendorID:   physicalCPU[psrVendorIDOffset],
+					ModelName:  physicalCPU[psrModelNameOffset],
+					Family:     physicalCPU[psrFamilyOffset],
+					Model:      physicalCPU[psrModelOffset],
+					Stepping:   step,
+					Mhz:        clock,
+				})
+				infoStatCount++
+			}
+		default:
+			return nil, errors.New("values for cores with and without hyperthreading are both set")
+		}
+	}
+	return result, nil
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	return runtime.NumCPU(), nil
+}

vendor/github.com/shirou/gopsutil/cpu/cpu_windows.go

@@ -0,0 +1,265 @@
+// +build windows
+
+package cpu
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"unsafe"
+
+	"github.com/yusufpapurcu/wmi"
+	"github.com/shirou/gopsutil/internal/common"
+	"golang.org/x/sys/windows"
+)
+
+var (
+	procGetActiveProcessorCount = common.Modkernel32.NewProc("GetActiveProcessorCount")
+	procGetNativeSystemInfo     = common.Modkernel32.NewProc("GetNativeSystemInfo")
+)
+
+type Win32_Processor struct {
+	Win32_ProcessorWithoutLoadPct
+	LoadPercentage *uint16
+}
+
+// LoadPercentage takes a linearly more time as the number of sockets increases.
+// For vSphere by default corespersocket = 1, meaning for a 40 vCPU VM Get Processor Info
+// could take more than half a minute.
+type Win32_ProcessorWithoutLoadPct struct {
+	Family                    uint16
+	Manufacturer              string
+	Name                      string
+	NumberOfLogicalProcessors uint32
+	NumberOfCores             uint32
+	ProcessorID               *string
+	Stepping                  *string
+	MaxClockSpeed             uint32
+}
+
+// SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION
+// defined in windows api doc with the following
+// https://docs.microsoft.com/en-us/windows/desktop/api/winternl/nf-winternl-ntquerysysteminformation#system_processor_performance_information
+// additional fields documented here
+// https://www.geoffchappell.com/studies/windows/km/ntoskrnl/api/ex/sysinfo/processor_performance.htm
+type win32_SystemProcessorPerformanceInformation struct {
+	IdleTime       int64 // idle time in 100ns (this is not a filetime).
+	KernelTime     int64 // kernel time in 100ns.  kernel time includes idle time. (this is not a filetime).
+	UserTime       int64 // usertime in 100ns (this is not a filetime).
+	DpcTime        int64 // dpc time in 100ns (this is not a filetime).
+	InterruptTime  int64 // interrupt time in 100ns
+	InterruptCount uint32
+}
+
+// Win32_PerfFormattedData_PerfOS_System struct to have count of processes and processor queue length
+type Win32_PerfFormattedData_PerfOS_System struct {
+	Processes            uint32
+	ProcessorQueueLength uint32
+}
+
+const (
+	ClocksPerSec = 10000000.0
+
+	// systemProcessorPerformanceInformationClass information class to query with NTQuerySystemInformation
+	// https://processhacker.sourceforge.io/doc/ntexapi_8h.html#ad5d815b48e8f4da1ef2eb7a2f18a54e0
+	win32_SystemProcessorPerformanceInformationClass = 8
+
+	// size of systemProcessorPerformanceInfoSize in memory
+	win32_SystemProcessorPerformanceInfoSize = uint32(unsafe.Sizeof(win32_SystemProcessorPerformanceInformation{}))
+)
+
+// Times returns times stat per cpu and combined for all CPUs
+func Times(percpu bool) ([]TimesStat, error) {
+	return TimesWithContext(context.Background(), percpu)
+}
+
+func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
+	if percpu {
+		return perCPUTimes()
+	}
+
+	var ret []TimesStat
+	var lpIdleTime common.FILETIME
+	var lpKernelTime common.FILETIME
+	var lpUserTime common.FILETIME
+	r, _, _ := common.ProcGetSystemTimes.Call(
+		uintptr(unsafe.Pointer(&lpIdleTime)),
+		uintptr(unsafe.Pointer(&lpKernelTime)),
+		uintptr(unsafe.Pointer(&lpUserTime)))
+	if r == 0 {
+		return ret, windows.GetLastError()
+	}
+
+	LOT := float64(0.0000001)
+	HIT := (LOT * 4294967296.0)
+	idle := ((HIT * float64(lpIdleTime.DwHighDateTime)) + (LOT * float64(lpIdleTime.DwLowDateTime)))
+	user := ((HIT * float64(lpUserTime.DwHighDateTime)) + (LOT * float64(lpUserTime.DwLowDateTime)))
+	kernel := ((HIT * float64(lpKernelTime.DwHighDateTime)) + (LOT * float64(lpKernelTime.DwLowDateTime)))
+	system := (kernel - idle)
+
+	ret = append(ret, TimesStat{
+		CPU:    "cpu-total",
+		Idle:   float64(idle),
+		User:   float64(user),
+		System: float64(system),
+	})
+	return ret, nil
+}
+
+func Info() ([]InfoStat, error) {
+	return InfoWithContext(context.Background())
+}
+
+func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
+	var ret []InfoStat
+	var dst []Win32_ProcessorWithoutLoadPct
+	q := wmi.CreateQuery(&dst, "")
+	q = strings.ReplaceAll(q, "Win32_ProcessorWithoutLoadPct", "Win32_Processor")
+	if err := common.WMIQueryWithContext(ctx, q, &dst); err != nil {
+		return ret, err
+	}
+
+	var procID string
+	for i, l := range dst {
+		procID = ""
+		if l.ProcessorID != nil {
+			procID = *l.ProcessorID
+		}
+
+		cpu := InfoStat{
+			CPU:        int32(i),
+			Family:     fmt.Sprintf("%d", l.Family),
+			VendorID:   l.Manufacturer,
+			ModelName:  l.Name,
+			Cores:      int32(l.NumberOfLogicalProcessors),
+			PhysicalID: procID,
+			Mhz:        float64(l.MaxClockSpeed),
+			Flags:      []string{},
+		}
+		ret = append(ret, cpu)
+	}
+
+	return ret, nil
+}
+
+// ProcInfo returns processes count and processor queue length in the system.
+// There is a single queue for processor even on multiprocessors systems.
+func ProcInfo() ([]Win32_PerfFormattedData_PerfOS_System, error) {
+	return ProcInfoWithContext(context.Background())
+}
+
+func ProcInfoWithContext(ctx context.Context) ([]Win32_PerfFormattedData_PerfOS_System, error) {
+	var ret []Win32_PerfFormattedData_PerfOS_System
+	q := wmi.CreateQuery(&ret, "")
+	err := common.WMIQueryWithContext(ctx, q, &ret)
+	if err != nil {
+		return []Win32_PerfFormattedData_PerfOS_System{}, err
+	}
+	return ret, err
+}
+
+// perCPUTimes returns times stat per cpu, per core and overall for all CPUs
+func perCPUTimes() ([]TimesStat, error) {
+	var ret []TimesStat
+	stats, err := perfInfo()
+	if err != nil {
+		return nil, err
+	}
+	for core, v := range stats {
+		c := TimesStat{
+			CPU:    fmt.Sprintf("cpu%d", core),
+			User:   float64(v.UserTime) / ClocksPerSec,
+			System: float64(v.KernelTime-v.IdleTime) / ClocksPerSec,
+			Idle:   float64(v.IdleTime) / ClocksPerSec,
+			Irq:    float64(v.InterruptTime) / ClocksPerSec,
+		}
+		ret = append(ret, c)
+	}
+	return ret, nil
+}
+
+// makes call to Windows API function to retrieve performance information for each core
+func perfInfo() ([]win32_SystemProcessorPerformanceInformation, error) {
+	// Make maxResults large for safety.
+	// We can't invoke the api call with a results array that's too small.
+	// If we have more than 2056 cores on a single host, then it's probably the future.
+	maxBuffer := 2056
+	// buffer for results from the windows proc
+	resultBuffer := make([]win32_SystemProcessorPerformanceInformation, maxBuffer)
+	// size of the buffer in memory
+	bufferSize := uintptr(win32_SystemProcessorPerformanceInfoSize) * uintptr(maxBuffer)
+	// size of the returned response
+	var retSize uint32
+
+	// Invoke windows api proc.
+	// The returned err from the windows dll proc will always be non-nil even when successful.
+	// See https://godoc.org/golang.org/x/sys/windows#LazyProc.Call for more information
+	retCode, _, err := common.ProcNtQuerySystemInformation.Call(
+		win32_SystemProcessorPerformanceInformationClass, // System Information Class -> SystemProcessorPerformanceInformation
+		uintptr(unsafe.Pointer(&resultBuffer[0])),        // pointer to first element in result buffer
+		bufferSize,                        // size of the buffer in memory
+		uintptr(unsafe.Pointer(&retSize)), // pointer to the size of the returned results the windows proc will set this
+	)
+
+	// check return code for errors
+	if retCode != 0 {
+		return nil, fmt.Errorf("call to NtQuerySystemInformation returned %d. err: %s", retCode, err.Error())
+	}
+
+	// calculate the number of returned elements based on the returned size
+	numReturnedElements := retSize / win32_SystemProcessorPerformanceInfoSize
+
+	// trim results to the number of returned elements
+	resultBuffer = resultBuffer[:numReturnedElements]
+
+	return resultBuffer, nil
+}
+
+// SystemInfo is an equivalent representation of SYSTEM_INFO in the Windows API.
+// https://msdn.microsoft.com/en-us/library/ms724958%28VS.85%29.aspx?f=255&MSPPError=-2147217396
+// https://github.com/elastic/go-windows/blob/bb1581babc04d5cb29a2bfa7a9ac6781c730c8dd/kernel32.go#L43
+type systemInfo struct {
+	wProcessorArchitecture      uint16
+	wReserved                   uint16
+	dwPageSize                  uint32
+	lpMinimumApplicationAddress uintptr
+	lpMaximumApplicationAddress uintptr
+	dwActiveProcessorMask       uintptr
+	dwNumberOfProcessors        uint32
+	dwProcessorType             uint32
+	dwAllocationGranularity     uint32
+	wProcessorLevel             uint16
+	wProcessorRevision          uint16
+}
+
+func CountsWithContext(ctx context.Context, logical bool) (int, error) {
+	if logical {
+		// https://github.com/giampaolo/psutil/blob/d01a9eaa35a8aadf6c519839e987a49d8be2d891/psutil/_psutil_windows.c#L97
+		err := procGetActiveProcessorCount.Find()
+		if err == nil { // Win7+
+			ret, _, _ := procGetActiveProcessorCount.Call(uintptr(0xffff)) // ALL_PROCESSOR_GROUPS is 0xffff according to Rust's winapi lib https://docs.rs/winapi/*/x86_64-pc-windows-msvc/src/winapi/shared/ntdef.rs.html#120
+			if ret != 0 {
+				return int(ret), nil
+			}
+		}
+		var systemInfo systemInfo
+		_, _, err = procGetNativeSystemInfo.Call(uintptr(unsafe.Pointer(&systemInfo)))
+		if systemInfo.dwNumberOfProcessors == 0 {
+			return 0, err
+		}
+		return int(systemInfo.dwNumberOfProcessors), nil
+	}
+	// physical cores https://github.com/giampaolo/psutil/blob/d01a9eaa35a8aadf6c519839e987a49d8be2d891/psutil/_psutil_windows.c#L499
+	// for the time being, try with unreliable and slow WMI call…
+	var dst []Win32_ProcessorWithoutLoadPct
+	q := wmi.CreateQuery(&dst, "")
+	q = strings.ReplaceAll(q, "Win32_ProcessorWithoutLoadPct", "Win32_Processor")
+	if err := common.WMIQueryWithContext(ctx, q, &dst); err != nil {
+		return 0, err
+	}
+	var count uint32
+	for _, d := range dst {
+		count += d.NumberOfCores
+	}
+	return int(count), nil
+}

vendor/github.com/shirou/gopsutil/internal/common/binary.go

@@ -0,0 +1,634 @@
+package common
+
+// Copyright 2009 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package binary implements simple translation between numbers and byte
+// sequences and encoding and decoding of varints.
+//
+// Numbers are translated by reading and writing fixed-size values.
+// A fixed-size value is either a fixed-size arithmetic
+// type (int8, uint8, int16, float32, complex64, ...)
+// or an array or struct containing only fixed-size values.
+//
+// The varint functions encode and decode single integer values using
+// a variable-length encoding; smaller values require fewer bytes.
+// For a specification, see
+// http://code.google.com/apis/protocolbuffers/docs/encoding.html.
+//
+// This package favors simplicity over efficiency. Clients that require
+// high-performance serialization, especially for large data structures,
+// should look at more advanced solutions such as the encoding/gob
+// package or protocol buffers.
+import (
+	"errors"
+	"io"
+	"math"
+	"reflect"
+)
+
+// A ByteOrder specifies how to convert byte sequences into
+// 16-, 32-, or 64-bit unsigned integers.
+type ByteOrder interface {
+	Uint16([]byte) uint16
+	Uint32([]byte) uint32
+	Uint64([]byte) uint64
+	PutUint16([]byte, uint16)
+	PutUint32([]byte, uint32)
+	PutUint64([]byte, uint64)
+	String() string
+}
+
+// LittleEndian is the little-endian implementation of ByteOrder.
+var LittleEndian littleEndian
+
+// BigEndian is the big-endian implementation of ByteOrder.
+var BigEndian bigEndian
+
+type littleEndian struct{}
+
+func (littleEndian) Uint16(b []byte) uint16 { return uint16(b[0]) | uint16(b[1])<<8 }
+
+func (littleEndian) PutUint16(b []byte, v uint16) {
+	b[0] = byte(v)
+	b[1] = byte(v >> 8)
+}
+
+func (littleEndian) Uint32(b []byte) uint32 {
+	return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
+}
+
+func (littleEndian) PutUint32(b []byte, v uint32) {
+	b[0] = byte(v)
+	b[1] = byte(v >> 8)
+	b[2] = byte(v >> 16)
+	b[3] = byte(v >> 24)
+}
+
+func (littleEndian) Uint64(b []byte) uint64 {
+	return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
+		uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
+}
+
+func (littleEndian) PutUint64(b []byte, v uint64) {
+	b[0] = byte(v)
+	b[1] = byte(v >> 8)
+	b[2] = byte(v >> 16)
+	b[3] = byte(v >> 24)
+	b[4] = byte(v >> 32)
+	b[5] = byte(v >> 40)
+	b[6] = byte(v >> 48)
+	b[7] = byte(v >> 56)
+}
+
+func (littleEndian) String() string { return "LittleEndian" }
+
+func (littleEndian) GoString() string { return "binary.LittleEndian" }
+
+type bigEndian struct{}
+
+func (bigEndian) Uint16(b []byte) uint16 { return uint16(b[1]) | uint16(b[0])<<8 }
+
+func (bigEndian) PutUint16(b []byte, v uint16) {
+	b[0] = byte(v >> 8)
+	b[1] = byte(v)
+}
+
+func (bigEndian) Uint32(b []byte) uint32 {
+	return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
+}
+
+func (bigEndian) PutUint32(b []byte, v uint32) {
+	b[0] = byte(v >> 24)
+	b[1] = byte(v >> 16)
+	b[2] = byte(v >> 8)
+	b[3] = byte(v)
+}
+
+func (bigEndian) Uint64(b []byte) uint64 {
+	return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
+		uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
+}
+
+func (bigEndian) PutUint64(b []byte, v uint64) {
+	b[0] = byte(v >> 56)
+	b[1] = byte(v >> 48)
+	b[2] = byte(v >> 40)
+	b[3] = byte(v >> 32)
+	b[4] = byte(v >> 24)
+	b[5] = byte(v >> 16)
+	b[6] = byte(v >> 8)
+	b[7] = byte(v)
+}
+
+func (bigEndian) String() string { return "BigEndian" }
+
+func (bigEndian) GoString() string { return "binary.BigEndian" }
+
+// Read reads structured binary data from r into data.
+// Data must be a pointer to a fixed-size value or a slice
+// of fixed-size values.
+// Bytes read from r are decoded using the specified byte order
+// and written to successive fields of the data.
+// When reading into structs, the field data for fields with
+// blank (_) field names is skipped; i.e., blank field names
+// may be used for padding.
+// When reading into a struct, all non-blank fields must be exported.
+func Read(r io.Reader, order ByteOrder, data interface{}) error {
+	// Fast path for basic types and slices.
+	if n := intDataSize(data); n != 0 {
+		var b [8]byte
+		var bs []byte
+		if n > len(b) {
+			bs = make([]byte, n)
+		} else {
+			bs = b[:n]
+		}
+		if _, err := io.ReadFull(r, bs); err != nil {
+			return err
+		}
+		switch data := data.(type) {
+		case *int8:
+			*data = int8(b[0])
+		case *uint8:
+			*data = b[0]
+		case *int16:
+			*data = int16(order.Uint16(bs))
+		case *uint16:
+			*data = order.Uint16(bs)
+		case *int32:
+			*data = int32(order.Uint32(bs))
+		case *uint32:
+			*data = order.Uint32(bs)
+		case *int64:
+			*data = int64(order.Uint64(bs))
+		case *uint64:
+			*data = order.Uint64(bs)
+		case []int8:
+			for i, x := range bs { // Easier to loop over the input for 8-bit values.
+				data[i] = int8(x)
+			}
+		case []uint8:
+			copy(data, bs)
+		case []int16:
+			for i := range data {
+				data[i] = int16(order.Uint16(bs[2*i:]))
+			}
+		case []uint16:
+			for i := range data {
+				data[i] = order.Uint16(bs[2*i:])
+			}
+		case []int32:
+			for i := range data {
+				data[i] = int32(order.Uint32(bs[4*i:]))
+			}
+		case []uint32:
+			for i := range data {
+				data[i] = order.Uint32(bs[4*i:])
+			}
+		case []int64:
+			for i := range data {
+				data[i] = int64(order.Uint64(bs[8*i:]))
+			}
+		case []uint64:
+			for i := range data {
+				data[i] = order.Uint64(bs[8*i:])
+			}
+		}
+		return nil
+	}
+
+	// Fallback to reflect-based decoding.
+	v := reflect.ValueOf(data)
+	size := -1
+	switch v.Kind() {
+	case reflect.Ptr:
+		v = v.Elem()
+		size = dataSize(v)
+	case reflect.Slice:
+		size = dataSize(v)
+	}
+	if size < 0 {
+		return errors.New("binary.Read: invalid type " + reflect.TypeOf(data).String())
+	}
+	d := &decoder{order: order, buf: make([]byte, size)}
+	if _, err := io.ReadFull(r, d.buf); err != nil {
+		return err
+	}
+	d.value(v)
+	return nil
+}
+
+// Write writes the binary representation of data into w.
+// Data must be a fixed-size value or a slice of fixed-size
+// values, or a pointer to such data.
+// Bytes written to w are encoded using the specified byte order
+// and read from successive fields of the data.
+// When writing structs, zero values are written for fields
+// with blank (_) field names.
+func Write(w io.Writer, order ByteOrder, data interface{}) error {
+	// Fast path for basic types and slices.
+	if n := intDataSize(data); n != 0 {
+		var b [8]byte
+		var bs []byte
+		if n > len(b) {
+			bs = make([]byte, n)
+		} else {
+			bs = b[:n]
+		}
+		switch v := data.(type) {
+		case *int8:
+			bs = b[:1]
+			b[0] = byte(*v)
+		case int8:
+			bs = b[:1]
+			b[0] = byte(v)
+		case []int8:
+			for i, x := range v {
+				bs[i] = byte(x)
+			}
+		case *uint8:
+			bs = b[:1]
+			b[0] = *v
+		case uint8:
+			bs = b[:1]
+			b[0] = v
+		case []uint8:
+			bs = v
+		case *int16:
+			bs = b[:2]
+			order.PutUint16(bs, uint16(*v))
+		case int16:
+			bs = b[:2]
+			order.PutUint16(bs, uint16(v))
+		case []int16:
+			for i, x := range v {
+				order.PutUint16(bs[2*i:], uint16(x))
+			}
+		case *uint16:
+			bs = b[:2]
+			order.PutUint16(bs, *v)
+		case uint16:
+			bs = b[:2]
+			order.PutUint16(bs, v)
+		case []uint16:
+			for i, x := range v {
+				order.PutUint16(bs[2*i:], x)
+			}
+		case *int32:
+			bs = b[:4]
+			order.PutUint32(bs, uint32(*v))
+		case int32:
+			bs = b[:4]
+			order.PutUint32(bs, uint32(v))
+		case []int32:
+			for i, x := range v {
+				order.PutUint32(bs[4*i:], uint32(x))
+			}
+		case *uint32:
+			bs = b[:4]
+			order.PutUint32(bs, *v)
+		case uint32:
+			bs = b[:4]
+			order.PutUint32(bs, v)
+		case []uint32:
+			for i, x := range v {
+				order.PutUint32(bs[4*i:], x)
+			}
+		case *int64:
+			bs = b[:8]
+			order.PutUint64(bs, uint64(*v))
+		case int64:
+			bs = b[:8]
+			order.PutUint64(bs, uint64(v))
+		case []int64:
+			for i, x := range v {
+				order.PutUint64(bs[8*i:], uint64(x))
+			}
+		case *uint64:
+			bs = b[:8]
+			order.PutUint64(bs, *v)
+		case uint64:
+			bs = b[:8]
+			order.PutUint64(bs, v)
+		case []uint64:
+			for i, x := range v {
+				order.PutUint64(bs[8*i:], x)
+			}
+		}
+		_, err := w.Write(bs)
+		return err
+	}
+
+	// Fallback to reflect-based encoding.
+	v := reflect.Indirect(reflect.ValueOf(data))
+	size := dataSize(v)
+	if size < 0 {
+		return errors.New("binary.Write: invalid type " + reflect.TypeOf(data).String())
+	}
+	buf := make([]byte, size)
+	e := &encoder{order: order, buf: buf}
+	e.value(v)
+	_, err := w.Write(buf)
+	return err
+}
+
+// Size returns how many bytes Write would generate to encode the value v, which
+// must be a fixed-size value or a slice of fixed-size values, or a pointer to such data.
+// If v is neither of these, Size returns -1.
+func Size(v interface{}) int {
+	return dataSize(reflect.Indirect(reflect.ValueOf(v)))
+}
+
+// dataSize returns the number of bytes the actual data represented by v occupies in memory.
+// For compound structures, it sums the sizes of the elements. Thus, for instance, for a slice
+// it returns the length of the slice times the element size and does not count the memory
+// occupied by the header. If the type of v is not acceptable, dataSize returns -1.
+func dataSize(v reflect.Value) int {
+	if v.Kind() == reflect.Slice {
+		if s := sizeof(v.Type().Elem()); s >= 0 {
+			return s * v.Len()
+		}
+		return -1
+	}
+	return sizeof(v.Type())
+}
+
+// sizeof returns the size >= 0 of variables for the given type or -1 if the type is not acceptable.
+func sizeof(t reflect.Type) int {
+	switch t.Kind() {
+	case reflect.Array:
+		if s := sizeof(t.Elem()); s >= 0 {
+			return s * t.Len()
+		}
+
+	case reflect.Struct:
+		sum := 0
+		for i, n := 0, t.NumField(); i < n; i++ {
+			s := sizeof(t.Field(i).Type)
+			if s < 0 {
+				return -1
+			}
+			sum += s
+		}
+		return sum
+
+	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64,
+		reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
+		reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128, reflect.Ptr:
+		return int(t.Size())
+	}
+
+	return -1
+}
+
+type coder struct {
+	order ByteOrder
+	buf   []byte
+}
+
+type decoder coder
+type encoder coder
+
+func (d *decoder) uint8() uint8 {
+	x := d.buf[0]
+	d.buf = d.buf[1:]
+	return x
+}
+
+func (e *encoder) uint8(x uint8) {
+	e.buf[0] = x
+	e.buf = e.buf[1:]
+}
+
+func (d *decoder) uint16() uint16 {
+	x := d.order.Uint16(d.buf[0:2])
+	d.buf = d.buf[2:]
+	return x
+}
+
+func (e *encoder) uint16(x uint16) {
+	e.order.PutUint16(e.buf[0:2], x)
+	e.buf = e.buf[2:]
+}
+
+func (d *decoder) uint32() uint32 {
+	x := d.order.Uint32(d.buf[0:4])
+	d.buf = d.buf[4:]
+	return x
+}
+
+func (e *encoder) uint32(x uint32) {
+	e.order.PutUint32(e.buf[0:4], x)
+	e.buf = e.buf[4:]
+}
+
+func (d *decoder) uint64() uint64 {
+	x := d.order.Uint64(d.buf[0:8])
+	d.buf = d.buf[8:]
+	return x
+}
+
+func (e *encoder) uint64(x uint64) {
+	e.order.PutUint64(e.buf[0:8], x)
+	e.buf = e.buf[8:]
+}
+
+func (d *decoder) int8() int8 { return int8(d.uint8()) }
+
+func (e *encoder) int8(x int8) { e.uint8(uint8(x)) }
+
+func (d *decoder) int16() int16 { return int16(d.uint16()) }
+
+func (e *encoder) int16(x int16) { e.uint16(uint16(x)) }
+
+func (d *decoder) int32() int32 { return int32(d.uint32()) }
+
+func (e *encoder) int32(x int32) { e.uint32(uint32(x)) }
+
+func (d *decoder) int64() int64 { return int64(d.uint64()) }
+
+func (e *encoder) int64(x int64) { e.uint64(uint64(x)) }
+
+func (d *decoder) value(v reflect.Value) {
+	switch v.Kind() {
+	case reflect.Array:
+		l := v.Len()
+		for i := 0; i < l; i++ {
+			d.value(v.Index(i))
+		}
+
+	case reflect.Struct:
+		t := v.Type()
+		l := v.NumField()
+		for i := 0; i < l; i++ {
+			// Note: Calling v.CanSet() below is an optimization.
+			// It would be sufficient to check the field name,
+			// but creating the StructField info for each field is
+			// costly (run "go test -bench=ReadStruct" and compare
+			// results when making changes to this code).
+			if v := v.Field(i); v.CanSet() || t.Field(i).Name != "_" {
+				d.value(v)
+			} else {
+				d.skip(v)
+			}
+		}
+
+	case reflect.Slice:
+		l := v.Len()
+		for i := 0; i < l; i++ {
+			d.value(v.Index(i))
+		}
+
+	case reflect.Int8:
+		v.SetInt(int64(d.int8()))
+	case reflect.Int16:
+		v.SetInt(int64(d.int16()))
+	case reflect.Int32:
+		v.SetInt(int64(d.int32()))
+	case reflect.Int64:
+		v.SetInt(d.int64())
+
+	case reflect.Uint8:
+		v.SetUint(uint64(d.uint8()))
+	case reflect.Uint16:
+		v.SetUint(uint64(d.uint16()))
+	case reflect.Uint32:
+		v.SetUint(uint64(d.uint32()))
+	case reflect.Uint64:
+		v.SetUint(d.uint64())
+
+	case reflect.Float32:
+		v.SetFloat(float64(math.Float32frombits(d.uint32())))
+	case reflect.Float64:
+		v.SetFloat(math.Float64frombits(d.uint64()))
+
+	case reflect.Complex64:
+		v.SetComplex(complex(
+			float64(math.Float32frombits(d.uint32())),
+			float64(math.Float32frombits(d.uint32())),
+		))
+	case reflect.Complex128:
+		v.SetComplex(complex(
+			math.Float64frombits(d.uint64()),
+			math.Float64frombits(d.uint64()),
+		))
+	}
+}
+
+func (e *encoder) value(v reflect.Value) {
+	switch v.Kind() {
+	case reflect.Array:
+		l := v.Len()
+		for i := 0; i < l; i++ {
+			e.value(v.Index(i))
+		}
+
+	case reflect.Struct:
+		t := v.Type()
+		l := v.NumField()
+		for i := 0; i < l; i++ {
+			// see comment for corresponding code in decoder.value()
+			if v := v.Field(i); v.CanSet() || t.Field(i).Name != "_" {
+				e.value(v)
+			} else {
+				e.skip(v)
+			}
+		}
+
+	case reflect.Slice:
+		l := v.Len()
+		for i := 0; i < l; i++ {
+			e.value(v.Index(i))
+		}
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		switch v.Type().Kind() {
+		case reflect.Int8:
+			e.int8(int8(v.Int()))
+		case reflect.Int16:
+			e.int16(int16(v.Int()))
+		case reflect.Int32:
+			e.int32(int32(v.Int()))
+		case reflect.Int64:
+			e.int64(v.Int())
+		}
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		switch v.Type().Kind() {
+		case reflect.Uint8:
+			e.uint8(uint8(v.Uint()))
+		case reflect.Uint16:
+			e.uint16(uint16(v.Uint()))
+		case reflect.Uint32:
+			e.uint32(uint32(v.Uint()))
+		case reflect.Uint64:
+			e.uint64(v.Uint())
+		}
+
+	case reflect.Float32, reflect.Float64:
+		switch v.Type().Kind() {
+		case reflect.Float32:
+			e.uint32(math.Float32bits(float32(v.Float())))
+		case reflect.Float64:
+			e.uint64(math.Float64bits(v.Float()))
+		}
+
+	case reflect.Complex64, reflect.Complex128:
+		switch v.Type().Kind() {
+		case reflect.Complex64:
+			x := v.Complex()
+			e.uint32(math.Float32bits(float32(real(x))))
+			e.uint32(math.Float32bits(float32(imag(x))))
+		case reflect.Complex128:
+			x := v.Complex()
+			e.uint64(math.Float64bits(real(x)))
+			e.uint64(math.Float64bits(imag(x)))
+		}
+	}
+}
+
+func (d *decoder) skip(v reflect.Value) {
+	d.buf = d.buf[dataSize(v):]
+}
+
+func (e *encoder) skip(v reflect.Value) {
+	n := dataSize(v)
+	for i := range e.buf[0:n] {
+		e.buf[i] = 0
+	}
+	e.buf = e.buf[n:]
+}
+
+// intDataSize returns the size of the data required to represent the data when encoded.
+// It returns zero if the type cannot be implemented by the fast path in Read or Write.
+func intDataSize(data interface{}) int {
+	switch data := data.(type) {
+	case int8, *int8, *uint8:
+		return 1
+	case []int8:
+		return len(data)
+	case []uint8:
+		return len(data)
+	case int16, *int16, *uint16:
+		return 2
+	case []int16:
+		return 2 * len(data)
+	case []uint16:
+		return 2 * len(data)
+	case int32, *int32, *uint32:
+		return 4
+	case []int32:
+		return 4 * len(data)
+	case []uint32:
+		return 4 * len(data)
+	case int64, *int64, *uint64:
+		return 8
+	case []int64:
+		return 8 * len(data)
+	case []uint64:
+		return 8 * len(data)
+	}
+	return 0
+}

vendor/github.com/shirou/gopsutil/internal/common/common.go

@@ -0,0 +1,379 @@
+package common
+
+//
+// gopsutil is a port of psutil(http://pythonhosted.org/psutil/).
+// This covers these architectures.
+//  - linux (amd64, arm)
+//  - freebsd (amd64)
+//  - windows (amd64)
+import (
+	"bufio"
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net/url"
+	"os"
+	"os/exec"
+	"path"
+	"path/filepath"
+	"reflect"
+	"runtime"
+	"strconv"
+	"strings"
+	"time"
+)
+
+var (
+	Timeout    = 3 * time.Second
+	ErrTimeout = errors.New("command timed out")
+)
+
+type Invoker interface {
+	Command(string, ...string) ([]byte, error)
+	CommandWithContext(context.Context, string, ...string) ([]byte, error)
+}
+
+type Invoke struct{}
+
+func (i Invoke) Command(name string, arg ...string) ([]byte, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), Timeout)
+	defer cancel()
+	return i.CommandWithContext(ctx, name, arg...)
+}
+
+func (i Invoke) CommandWithContext(ctx context.Context, name string, arg ...string) ([]byte, error) {
+	cmd := exec.CommandContext(ctx, name, arg...)
+
+	var buf bytes.Buffer
+	cmd.Stdout = &buf
+	cmd.Stderr = &buf
+
+	if err := cmd.Start(); err != nil {
+		return buf.Bytes(), err
+	}
+
+	if err := cmd.Wait(); err != nil {
+		return buf.Bytes(), err
+	}
+
+	return buf.Bytes(), nil
+}
+
+type FakeInvoke struct {
+	Suffix string // Suffix species expected file name suffix such as "fail"
+	Error  error  // If Error specfied, return the error.
+}
+
+// Command in FakeInvoke returns from expected file if exists.
+func (i FakeInvoke) Command(name string, arg ...string) ([]byte, error) {
+	if i.Error != nil {
+		return []byte{}, i.Error
+	}
+
+	arch := runtime.GOOS
+
+	commandName := filepath.Base(name)
+
+	fname := strings.Join(append([]string{commandName}, arg...), "")
+	fname = url.QueryEscape(fname)
+	fpath := path.Join("testdata", arch, fname)
+	if i.Suffix != "" {
+		fpath += "_" + i.Suffix
+	}
+	if PathExists(fpath) {
+		return ioutil.ReadFile(fpath)
+	}
+	return []byte{}, fmt.Errorf("could not find testdata: %s", fpath)
+}
+
+func (i FakeInvoke) CommandWithContext(ctx context.Context, name string, arg ...string) ([]byte, error) {
+	return i.Command(name, arg...)
+}
+
+var ErrNotImplementedError = errors.New("not implemented yet")
+
+// ReadFile reads contents from a file.
+func ReadFile(filename string) (string, error) {
+	content, err := ioutil.ReadFile(filename)
+
+	if err != nil {
+		return "", err
+	}
+
+	return string(content), nil
+}
+
+// ReadLines reads contents from a file and splits them by new lines.
+// A convenience wrapper to ReadLinesOffsetN(filename, 0, -1).
+func ReadLines(filename string) ([]string, error) {
+	return ReadLinesOffsetN(filename, 0, -1)
+}
+
+// ReadLinesOffsetN reads contents from file and splits them by new line.
+// The offset tells at which line number to start.
+// The count determines the number of lines to read (starting from offset):
+//   n >= 0: at most n lines
+//   n < 0: whole file
+func ReadLinesOffsetN(filename string, offset uint, n int) ([]string, error) {
+	f, err := os.Open(filename)
+	if err != nil {
+		return []string{""}, err
+	}
+	defer f.Close()
+
+	var ret []string
+
+	r := bufio.NewReader(f)
+	for i := 0; i < n+int(offset) || n < 0; i++ {
+		line, err := r.ReadString('\n')
+		if err != nil {
+			break
+		}
+		if i < int(offset) {
+			continue
+		}
+		ret = append(ret, strings.Trim(line, "\n"))
+	}
+
+	return ret, nil
+}
+
+func IntToString(orig []int8) string {
+	ret := make([]byte, len(orig))
+	size := -1
+	for i, o := range orig {
+		if o == 0 {
+			size = i
+			break
+		}
+		ret[i] = byte(o)
+	}
+	if size == -1 {
+		size = len(orig)
+	}
+
+	return string(ret[0:size])
+}
+
+func UintToString(orig []uint8) string {
+	ret := make([]byte, len(orig))
+	size := -1
+	for i, o := range orig {
+		if o == 0 {
+			size = i
+			break
+		}
+		ret[i] = o
+	}
+	if size == -1 {
+		size = len(orig)
+	}
+
+	return string(ret[0:size])
+}
+
+func ByteToString(orig []byte) string {
+	n := -1
+	l := -1
+	for i, b := range orig {
+		// skip left side null
+		if l == -1 && b == 0 {
+			continue
+		}
+		if l == -1 {
+			l = i
+		}
+
+		if b == 0 {
+			break
+		}
+		n = i + 1
+	}
+	if n == -1 {
+		return string(orig)
+	}
+	return string(orig[l:n])
+}
+
+// ReadInts reads contents from single line file and returns them as []int32.
+func ReadInts(filename string) ([]int64, error) {
+	f, err := os.Open(filename)
+	if err != nil {
+		return []int64{}, err
+	}
+	defer f.Close()
+
+	var ret []int64
+
+	r := bufio.NewReader(f)
+
+	// The int files that this is concerned with should only be one liners.
+	line, err := r.ReadString('\n')
+	if err != nil {
+		return []int64{}, err
+	}
+
+	i, err := strconv.ParseInt(strings.Trim(line, "\n"), 10, 32)
+	if err != nil {
+		return []int64{}, err
+	}
+	ret = append(ret, i)
+
+	return ret, nil
+}
+
+// HexToUint32 parses Hex to uint32 without error.
+func HexToUint32(hex string) uint32 {
+	vv, _ := strconv.ParseUint(hex, 16, 32)
+	return uint32(vv)
+}
+
+// mustParseInt32 parses to int32 without error.
+func mustParseInt32(val string) int32 {
+	vv, _ := strconv.ParseInt(val, 10, 32)
+	return int32(vv)
+}
+
+// mustParseUint64 parses to uint64 without error.
+func mustParseUint64(val string) uint64 {
+	vv, _ := strconv.ParseInt(val, 10, 64)
+	return uint64(vv)
+}
+
+// mustParseFloat64 parses to Float64 without error.
+func mustParseFloat64(val string) float64 {
+	vv, _ := strconv.ParseFloat(val, 64)
+	return vv
+}
+
+// StringsHas checks the target string slice contains src or not.
+func StringsHas(target []string, src string) bool {
+	for _, t := range target {
+		if strings.TrimSpace(t) == src {
+			return true
+		}
+	}
+	return false
+}
+
+// StringsContains checks the src in any string of the target string slice.
+func StringsContains(target []string, src string) bool {
+	for _, t := range target {
+		if strings.Contains(t, src) {
+			return true
+		}
+	}
+	return false
+}
+
+// IntContains checks the src in any int of the target int slice.
+func IntContains(target []int, src int) bool {
+	for _, t := range target {
+		if src == t {
+			return true
+		}
+	}
+	return false
+}
+
+// get struct attributes.
+// This method is used only for debugging platform dependent code.
+func attributes(m interface{}) map[string]reflect.Type {
+	typ := reflect.TypeOf(m)
+	if typ.Kind() == reflect.Ptr {
+		typ = typ.Elem()
+	}
+
+	attrs := make(map[string]reflect.Type)
+	if typ.Kind() != reflect.Struct {
+		return nil
+	}
+
+	for i := 0; i < typ.NumField(); i++ {
+		p := typ.Field(i)
+		if !p.Anonymous {
+			attrs[p.Name] = p.Type
+		}
+	}
+
+	return attrs
+}
+
+func PathExists(filename string) bool {
+	if _, err := os.Stat(filename); err == nil {
+		return true
+	}
+	return false
+}
+
+// GetEnv retrieves the environment variable key. If it does not exist it returns the default.
+func GetEnv(key string, dfault string, combineWith ...string) string {
+	value := os.Getenv(key)
+	if value == "" {
+		value = dfault
+	}
+
+	switch len(combineWith) {
+	case 0:
+		return value
+	case 1:
+		return filepath.Join(value, combineWith[0])
+	default:
+		all := make([]string, len(combineWith)+1)
+		all[0] = value
+		copy(all[1:], combineWith)
+		return filepath.Join(all...)
+	}
+}
+
+func HostProc(combineWith ...string) string {
+	return GetEnv("HOST_PROC", "/proc", combineWith...)
+}
+
+func HostSys(combineWith ...string) string {
+	return GetEnv("HOST_SYS", "/sys", combineWith...)
+}
+
+func HostEtc(combineWith ...string) string {
+	return GetEnv("HOST_ETC", "/etc", combineWith...)
+}
+
+func HostVar(combineWith ...string) string {
+	return GetEnv("HOST_VAR", "/var", combineWith...)
+}
+
+func HostRun(combineWith ...string) string {
+	return GetEnv("HOST_RUN", "/run", combineWith...)
+}
+
+func HostDev(combineWith ...string) string {
+	return GetEnv("HOST_DEV", "/dev", combineWith...)
+}
+
+// MockEnv set environment variable and return revert function.
+// MockEnv should be used testing only.
+func MockEnv(key string, value string) func() {
+	original := os.Getenv(key)
+	os.Setenv(key, value)
+	return func() {
+		os.Setenv(key, original)
+	}
+}
+
+// getSysctrlEnv sets LC_ALL=C in a list of env vars for use when running
+// sysctl commands (see DoSysctrl).
+func getSysctrlEnv(env []string) []string {
+	foundLC := false
+	for i, line := range env {
+		if strings.HasPrefix(line, "LC_ALL") {
+			env[i] = "LC_ALL=C"
+			foundLC = true
+		}
+	}
+	if !foundLC {
+		env = append(env, "LC_ALL=C")
+	}
+	return env
+}

vendor/github.com/shirou/gopsutil/internal/common/common_darwin.go

@@ -0,0 +1,69 @@
+// +build darwin
+
+package common
+
+import (
+	"context"
+	"os"
+	"os/exec"
+	"strings"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+)
+
+func DoSysctrlWithContext(ctx context.Context, mib string) ([]string, error) {
+	sysctl, err := exec.LookPath("sysctl")
+	if err != nil {
+		return []string{}, err
+	}
+	cmd := exec.CommandContext(ctx, sysctl, "-n", mib)
+	cmd.Env = getSysctrlEnv(os.Environ())
+	out, err := cmd.Output()
+	if err != nil {
+		return []string{}, err
+	}
+	v := strings.Replace(string(out), "{ ", "", 1)
+	v = strings.Replace(string(v), " }", "", 1)
+	values := strings.Fields(string(v))
+
+	return values, nil
+}
+
+func CallSyscall(mib []int32) ([]byte, uint64, error) {
+	miblen := uint64(len(mib))
+
+	// get required buffer size
+	length := uint64(0)
+	_, _, err := unix.Syscall6(
+		202, // unix.SYS___SYSCTL https://github.com/golang/sys/blob/76b94024e4b621e672466e8db3d7f084e7ddcad2/unix/zsysnum_darwin_amd64.go#L146
+		uintptr(unsafe.Pointer(&mib[0])),
+		uintptr(miblen),
+		0,
+		uintptr(unsafe.Pointer(&length)),
+		0,
+		0)
+	if err != 0 {
+		var b []byte
+		return b, length, err
+	}
+	if length == 0 {
+		var b []byte
+		return b, length, err
+	}
+	// get proc info itself
+	buf := make([]byte, length)
+	_, _, err = unix.Syscall6(
+		202, // unix.SYS___SYSCTL https://github.com/golang/sys/blob/76b94024e4b621e672466e8db3d7f084e7ddcad2/unix/zsysnum_darwin_amd64.go#L146
+		uintptr(unsafe.Pointer(&mib[0])),
+		uintptr(miblen),
+		uintptr(unsafe.Pointer(&buf[0])),
+		uintptr(unsafe.Pointer(&length)),
+		0,
+		0)
+	if err != 0 {
+		return buf, length, err
+	}
+
+	return buf, length, nil
+}

vendor/github.com/shirou/gopsutil/internal/common/common_freebsd.go

@@ -0,0 +1,85 @@
+// +build freebsd openbsd
+
+package common
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+)
+
+func SysctlUint(mib string) (uint64, error) {
+	buf, err := unix.SysctlRaw(mib)
+	if err != nil {
+		return 0, err
+	}
+	if len(buf) == 8 { // 64 bit
+		return *(*uint64)(unsafe.Pointer(&buf[0])), nil
+	}
+	if len(buf) == 4 { // 32bit
+		t := *(*uint32)(unsafe.Pointer(&buf[0]))
+		return uint64(t), nil
+	}
+	return 0, fmt.Errorf("unexpected size: %s, %d", mib, len(buf))
+}
+
+func DoSysctrl(mib string) ([]string, error) {
+	sysctl, err := exec.LookPath("sysctl")
+	if err != nil {
+		return []string{}, err
+	}
+	cmd := exec.Command(sysctl, "-n", mib)
+	cmd.Env = getSysctrlEnv(os.Environ())
+	out, err := cmd.Output()
+	if err != nil {
+		return []string{}, err
+	}
+	v := strings.Replace(string(out), "{ ", "", 1)
+	v = strings.Replace(string(v), " }", "", 1)
+	values := strings.Fields(string(v))
+
+	return values, nil
+}
+
+func CallSyscall(mib []int32) ([]byte, uint64, error) {
+	mibptr := unsafe.Pointer(&mib[0])
+	miblen := uint64(len(mib))
+
+	// get required buffer size
+	length := uint64(0)
+	_, _, err := unix.Syscall6(
+		unix.SYS___SYSCTL,
+		uintptr(mibptr),
+		uintptr(miblen),
+		0,
+		uintptr(unsafe.Pointer(&length)),
+		0,
+		0)
+	if err != 0 {
+		var b []byte
+		return b, length, err
+	}
+	if length == 0 {
+		var b []byte
+		return b, length, err
+	}
+	// get proc info itself
+	buf := make([]byte, length)
+	_, _, err = unix.Syscall6(
+		unix.SYS___SYSCTL,
+		uintptr(mibptr),
+		uintptr(miblen),
+		uintptr(unsafe.Pointer(&buf[0])),
+		uintptr(unsafe.Pointer(&length)),
+		0,
+		0)
+	if err != 0 {
+		return buf, length, err
+	}
+
+	return buf, length, nil
+}

vendor/github.com/shirou/gopsutil/internal/common/common_linux.go

@@ -0,0 +1,291 @@
+// +build linux
+
+package common
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+func DoSysctrl(mib string) ([]string, error) {
+	sysctl, err := exec.LookPath("sysctl")
+	if err != nil {
+		return []string{}, err
+	}
+	cmd := exec.Command(sysctl, "-n", mib)
+	cmd.Env = getSysctrlEnv(os.Environ())
+	out, err := cmd.Output()
+	if err != nil {
+		return []string{}, err
+	}
+	v := strings.Replace(string(out), "{ ", "", 1)
+	v = strings.Replace(v, " }", "", 1)
+	values := strings.Fields(v)
+
+	return values, nil
+}
+
+func NumProcs() (uint64, error) {
+	f, err := os.Open(HostProc())
+	if err != nil {
+		return 0, err
+	}
+	defer f.Close()
+
+	list, err := f.Readdirnames(-1)
+	if err != nil {
+		return 0, err
+	}
+	var cnt uint64
+
+	for _, v := range list {
+		if _, err = strconv.ParseUint(v, 10, 64); err == nil {
+			cnt++
+		}
+	}
+
+	return cnt, nil
+}
+
+func BootTimeWithContext(ctx context.Context) (uint64, error) {
+	system, role, err := Virtualization()
+	if err != nil {
+		return 0, err
+	}
+
+	statFile := "stat"
+	if system == "lxc" && role == "guest" {
+		// if lxc, /proc/uptime is used.
+		statFile = "uptime"
+	} else if system == "docker" && role == "guest" {
+		// also docker, guest
+		statFile = "uptime"
+	}
+
+	filename := HostProc(statFile)
+	lines, err := ReadLines(filename)
+	if err != nil {
+		return 0, err
+	}
+
+	if statFile == "uptime" {
+		if len(lines) != 1 {
+			return 0, fmt.Errorf("wrong uptime format")
+		}
+		f := strings.Fields(lines[0])
+		b, err := strconv.ParseFloat(f[0], 64)
+		if err != nil {
+			return 0, err
+		}
+		t := uint64(time.Now().Unix()) - uint64(b)
+		return t, nil
+	}
+	if statFile == "stat" {
+		for _, line := range lines {
+			if strings.HasPrefix(line, "btime") {
+				f := strings.Fields(line)
+				if len(f) != 2 {
+					return 0, fmt.Errorf("wrong btime format")
+				}
+				b, err := strconv.ParseInt(f[1], 10, 64)
+				if err != nil {
+					return 0, err
+				}
+				t := uint64(b)
+				return t, nil
+			}
+		}
+	}
+
+	return 0, fmt.Errorf("could not find btime")
+}
+
+func Virtualization() (string, string, error) {
+	return VirtualizationWithContext(context.Background())
+}
+
+// required variables for concurrency safe virtualization caching.
+var (
+	cachedVirtMap   map[string]string
+	cachedVirtMutex sync.RWMutex
+	cachedVirtOnce  sync.Once
+)
+
+func VirtualizationWithContext(ctx context.Context) (string, string, error) {
+	var system, role string
+
+	// if cached already, return from cache
+	cachedVirtMutex.RLock() // unlock won't be deferred so concurrent reads don't wait for long
+	if cachedVirtMap != nil {
+		cachedSystem, cachedRole := cachedVirtMap["system"], cachedVirtMap["role"]
+		cachedVirtMutex.RUnlock()
+		return cachedSystem, cachedRole, nil
+	}
+	cachedVirtMutex.RUnlock()
+
+	filename := HostProc("xen")
+	if PathExists(filename) {
+		system = "xen"
+		role = "guest" // assume guest
+
+		if PathExists(filepath.Join(filename, "capabilities")) {
+			contents, err := ReadLines(filepath.Join(filename, "capabilities"))
+			if err == nil && StringsContains(contents, "control_d") {
+				role = "host"
+			}
+		}
+	}
+
+	filename = HostProc("modules")
+	if PathExists(filename) {
+		contents, err := ReadLines(filename)
+		if err == nil {
+			switch {
+			case StringsContains(contents, "kvm"):
+				system = "kvm"
+				role = "host"
+			case StringsContains(contents, "vboxdrv"):
+				system = "vbox"
+				role = "host"
+			case StringsContains(contents, "vboxguest"):
+				system = "vbox"
+				role = "guest"
+			case StringsContains(contents, "vmware"):
+				system = "vmware"
+				role = "guest"
+			}
+		}
+	}
+
+	filename = HostProc("cpuinfo")
+	if PathExists(filename) {
+		contents, err := ReadLines(filename)
+		if err == nil {
+			if StringsContains(contents, "QEMU Virtual CPU") ||
+				StringsContains(contents, "Common KVM processor") ||
+				StringsContains(contents, "Common 32-bit KVM processor") {
+				system = "kvm"
+				role = "guest"
+			}
+		}
+	}
+
+	filename = HostProc("bus/pci/devices")
+	if PathExists(filename) {
+		contents, err := ReadLines(filename)
+		if err == nil {
+			if StringsContains(contents, "virtio-pci") {
+				role = "guest"
+			}
+		}
+	}
+
+	filename = HostProc()
+	if PathExists(filepath.Join(filename, "bc", "0")) {
+		system = "openvz"
+		role = "host"
+	} else if PathExists(filepath.Join(filename, "vz")) {
+		system = "openvz"
+		role = "guest"
+	}
+
+	// not use dmidecode because it requires root
+	if PathExists(filepath.Join(filename, "self", "status")) {
+		contents, err := ReadLines(filepath.Join(filename, "self", "status"))
+		if err == nil {
+			if StringsContains(contents, "s_context:") ||
+				StringsContains(contents, "VxID:") {
+				system = "linux-vserver"
+			}
+			// TODO: guest or host
+		}
+	}
+
+	if PathExists(filepath.Join(filename, "1", "environ")) {
+		contents, err := ReadFile(filepath.Join(filename, "1", "environ"))
+
+		if err == nil {
+			if strings.Contains(contents, "container=lxc") {
+				system = "lxc"
+				role = "guest"
+			}
+		}
+	}
+
+	if PathExists(filepath.Join(filename, "self", "cgroup")) {
+		contents, err := ReadLines(filepath.Join(filename, "self", "cgroup"))
+		if err == nil {
+			switch {
+			case StringsContains(contents, "lxc"):
+				system = "lxc"
+				role = "guest"
+			case StringsContains(contents, "docker"):
+				system = "docker"
+				role = "guest"
+			case StringsContains(contents, "machine-rkt"):
+				system = "rkt"
+				role = "guest"
+			case PathExists("/usr/bin/lxc-version"):
+				system = "lxc"
+				role = "host"
+			}
+		}
+	}
+
+	if PathExists(HostEtc("os-release")) {
+		p, _, err := GetOSRelease()
+		if err == nil && p == "coreos" {
+			system = "rkt" // Is it true?
+			role = "host"
+		}
+	}
+
+	// before returning for the first time, cache the system and role
+	cachedVirtOnce.Do(func() {
+		cachedVirtMutex.Lock()
+		defer cachedVirtMutex.Unlock()
+		cachedVirtMap = map[string]string{
+			"system": system,
+			"role":   role,
+		}
+	})
+
+	return system, role, nil
+}
+
+func GetOSRelease() (platform string, version string, err error) {
+	contents, err := ReadLines(HostEtc("os-release"))
+	if err != nil {
+		return "", "", nil // return empty
+	}
+	for _, line := range contents {
+		field := strings.Split(line, "=")
+		if len(field) < 2 {
+			continue
+		}
+		switch field[0] {
+		case "ID": // use ID for lowercase
+			platform = trimQuotes(field[1])
+		case "VERSION":
+			version = trimQuotes(field[1])
+		}
+	}
+	return platform, version, nil
+}
+
+// trimQuotes removes quotes in the source string.
+func trimQuotes(s string) string {
+	if len(s) >= 2 {
+		if s[0] == '"' && s[len(s)-1] == '"' {
+			return s[1 : len(s)-1]
+		}
+	}
+	return s
+}

vendor/github.com/shirou/gopsutil/internal/common/common_openbsd.go

@@ -0,0 +1,69 @@
+// +build openbsd
+
+package common
+
+import (
+	"os"
+	"os/exec"
+	"strings"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+)
+
+func DoSysctrl(mib string) ([]string, error) {
+	sysctl, err := exec.LookPath("sysctl")
+	if err != nil {
+		return []string{}, err
+	}
+	cmd := exec.Command(sysctl, "-n", mib)
+	cmd.Env = getSysctrlEnv(os.Environ())
+	out, err := cmd.Output()
+	if err != nil {
+		return []string{}, err
+	}
+	v := strings.Replace(string(out), "{ ", "", 1)
+	v = strings.Replace(string(v), " }", "", 1)
+	values := strings.Fields(string(v))
+
+	return values, nil
+}
+
+func CallSyscall(mib []int32) ([]byte, uint64, error) {
+	mibptr := unsafe.Pointer(&mib[0])
+	miblen := uint64(len(mib))
+
+	// get required buffer size
+	length := uint64(0)
+	_, _, err := unix.Syscall6(
+		unix.SYS___SYSCTL,
+		uintptr(mibptr),
+		uintptr(miblen),
+		0,
+		uintptr(unsafe.Pointer(&length)),
+		0,
+		0)
+	if err != 0 {
+		var b []byte
+		return b, length, err
+	}
+	if length == 0 {
+		var b []byte
+		return b, length, err
+	}
+	// get proc info itself
+	buf := make([]byte, length)
+	_, _, err = unix.Syscall6(
+		unix.SYS___SYSCTL,
+		uintptr(mibptr),
+		uintptr(miblen),
+		uintptr(unsafe.Pointer(&buf[0])),
+		uintptr(unsafe.Pointer(&length)),
+		0,
+		0)
+	if err != 0 {
+		return buf, length, err
+	}
+
+	return buf, length, nil
+}

vendor/github.com/shirou/gopsutil/internal/common/common_unix.go

@@ -0,0 +1,66 @@
+// +build linux freebsd darwin openbsd
+
+package common
+
+import (
+	"context"
+	"os/exec"
+	"strconv"
+	"strings"
+)
+
+func CallLsofWithContext(ctx context.Context, invoke Invoker, pid int32, args ...string) ([]string, error) {
+	var cmd []string
+	if pid == 0 { // will get from all processes.
+		cmd = []string{"-a", "-n", "-P"}
+	} else {
+		cmd = []string{"-a", "-n", "-P", "-p", strconv.Itoa(int(pid))}
+	}
+	cmd = append(cmd, args...)
+	lsof, err := exec.LookPath("lsof")
+	if err != nil {
+		return []string{}, err
+	}
+	out, err := invoke.CommandWithContext(ctx, lsof, cmd...)
+	if err != nil {
+		// if no pid found, lsof returns code 1.
+		if err.Error() == "exit status 1" && len(out) == 0 {
+			return []string{}, nil
+		}
+	}
+	lines := strings.Split(string(out), "\n")
+
+	var ret []string
+	for _, l := range lines[1:] {
+		if len(l) == 0 {
+			continue
+		}
+		ret = append(ret, l)
+	}
+	return ret, nil
+}
+
+func CallPgrepWithContext(ctx context.Context, invoke Invoker, pid int32) ([]int32, error) {
+	cmd := []string{"-P", strconv.Itoa(int(pid))}
+	pgrep, err := exec.LookPath("pgrep")
+	if err != nil {
+		return []int32{}, err
+	}
+	out, err := invoke.CommandWithContext(ctx, pgrep, cmd...)
+	if err != nil {
+		return []int32{}, err
+	}
+	lines := strings.Split(string(out), "\n")
+	ret := make([]int32, 0, len(lines))
+	for _, l := range lines {
+		if len(l) == 0 {
+			continue
+		}
+		i, err := strconv.Atoi(l)
+		if err != nil {
+			continue
+		}
+		ret = append(ret, int32(i))
+	}
+	return ret, nil
+}

vendor/github.com/shirou/gopsutil/internal/common/common_windows.go

@@ -0,0 +1,300 @@
+// +build windows
+
+package common
+
+import (
+	"context"
+	"fmt"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"syscall"
+	"unsafe"
+
+	"github.com/yusufpapurcu/wmi"
+	"golang.org/x/sys/windows"
+)
+
+// for double values
+type PDH_FMT_COUNTERVALUE_DOUBLE struct {
+	CStatus     uint32
+	DoubleValue float64
+}
+
+// for 64 bit integer values
+type PDH_FMT_COUNTERVALUE_LARGE struct {
+	CStatus    uint32
+	LargeValue int64
+}
+
+// for long values
+type PDH_FMT_COUNTERVALUE_LONG struct {
+	CStatus   uint32
+	LongValue int32
+	padding   [4]byte
+}
+
+// windows system const
+const (
+	ERROR_SUCCESS        = 0
+	ERROR_FILE_NOT_FOUND = 2
+	DRIVE_REMOVABLE      = 2
+	DRIVE_FIXED          = 3
+	HKEY_LOCAL_MACHINE   = 0x80000002
+	RRF_RT_REG_SZ        = 0x00000002
+	RRF_RT_REG_DWORD     = 0x00000010
+	PDH_FMT_LONG         = 0x00000100
+	PDH_FMT_DOUBLE       = 0x00000200
+	PDH_FMT_LARGE        = 0x00000400
+	PDH_INVALID_DATA     = 0xc0000bc6
+	PDH_INVALID_HANDLE   = 0xC0000bbc
+	PDH_NO_DATA          = 0x800007d5
+
+	STATUS_BUFFER_OVERFLOW      = 0x80000005
+	STATUS_BUFFER_TOO_SMALL     = 0xC0000023
+	STATUS_INFO_LENGTH_MISMATCH = 0xC0000004
+)
+
+const (
+	ProcessBasicInformation = 0
+	ProcessWow64Information = 26
+	ProcessQueryInformation = windows.PROCESS_DUP_HANDLE | windows.PROCESS_QUERY_INFORMATION
+
+	SystemExtendedHandleInformationClass = 64
+)
+
+var (
+	Modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
+	ModNt       = windows.NewLazySystemDLL("ntdll.dll")
+	ModPdh      = windows.NewLazySystemDLL("pdh.dll")
+	ModPsapi    = windows.NewLazySystemDLL("psapi.dll")
+
+	ProcGetSystemTimes                   = Modkernel32.NewProc("GetSystemTimes")
+	ProcNtQuerySystemInformation         = ModNt.NewProc("NtQuerySystemInformation")
+	ProcRtlGetNativeSystemInformation    = ModNt.NewProc("RtlGetNativeSystemInformation")
+	ProcRtlNtStatusToDosError            = ModNt.NewProc("RtlNtStatusToDosError")
+	ProcNtQueryInformationProcess        = ModNt.NewProc("NtQueryInformationProcess")
+	ProcNtReadVirtualMemory              = ModNt.NewProc("NtReadVirtualMemory")
+	ProcNtWow64QueryInformationProcess64 = ModNt.NewProc("NtWow64QueryInformationProcess64")
+	ProcNtWow64ReadVirtualMemory64       = ModNt.NewProc("NtWow64ReadVirtualMemory64")
+
+	PdhOpenQuery                = ModPdh.NewProc("PdhOpenQuery")
+	PdhAddEnglishCounterW       = ModPdh.NewProc("PdhAddEnglishCounterW")
+	PdhCollectQueryData         = ModPdh.NewProc("PdhCollectQueryData")
+	PdhGetFormattedCounterValue = ModPdh.NewProc("PdhGetFormattedCounterValue")
+	PdhCloseQuery               = ModPdh.NewProc("PdhCloseQuery")
+
+	procQueryDosDeviceW = Modkernel32.NewProc("QueryDosDeviceW")
+)
+
+type FILETIME struct {
+	DwLowDateTime  uint32
+	DwHighDateTime uint32
+}
+
+// borrowed from net/interface_windows.go
+func BytePtrToString(p *uint8) string {
+	a := (*[10000]uint8)(unsafe.Pointer(p))
+	i := 0
+	for a[i] != 0 {
+		i++
+	}
+	return string(a[:i])
+}
+
+// CounterInfo struct is used to track a windows performance counter
+// copied from https://github.com/mackerelio/mackerel-agent/
+type CounterInfo struct {
+	PostName    string
+	CounterName string
+	Counter     windows.Handle
+}
+
+// CreateQuery with a PdhOpenQuery call
+// copied from https://github.com/mackerelio/mackerel-agent/
+func CreateQuery() (windows.Handle, error) {
+	var query windows.Handle
+	r, _, err := PdhOpenQuery.Call(0, 0, uintptr(unsafe.Pointer(&query)))
+	if r != 0 {
+		return 0, err
+	}
+	return query, nil
+}
+
+// CreateCounter with a PdhAddEnglishCounterW call
+func CreateCounter(query windows.Handle, pname, cname string) (*CounterInfo, error) {
+	var counter windows.Handle
+	r, _, err := PdhAddEnglishCounterW.Call(
+		uintptr(query),
+		uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(cname))),
+		0,
+		uintptr(unsafe.Pointer(&counter)))
+	if r != 0 {
+		return nil, err
+	}
+	return &CounterInfo{
+		PostName:    pname,
+		CounterName: cname,
+		Counter:     counter,
+	}, nil
+}
+
+// GetCounterValue get counter value from handle
+// adapted from https://github.com/mackerelio/mackerel-agent/
+func GetCounterValue(counter windows.Handle) (float64, error) {
+	var value PDH_FMT_COUNTERVALUE_DOUBLE
+	r, _, err := PdhGetFormattedCounterValue.Call(uintptr(counter), PDH_FMT_DOUBLE, uintptr(0), uintptr(unsafe.Pointer(&value)))
+	if r != 0 && r != PDH_INVALID_DATA {
+		return 0.0, err
+	}
+	return value.DoubleValue, nil
+}
+
+type Win32PerformanceCounter struct {
+	PostName    string
+	CounterName string
+	Query       windows.Handle
+	Counter     windows.Handle
+}
+
+func NewWin32PerformanceCounter(postName, counterName string) (*Win32PerformanceCounter, error) {
+	query, err := CreateQuery()
+	if err != nil {
+		return nil, err
+	}
+	var counter = Win32PerformanceCounter{
+		Query:       query,
+		PostName:    postName,
+		CounterName: counterName,
+	}
+	r, _, err := PdhAddEnglishCounterW.Call(
+		uintptr(counter.Query),
+		uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(counter.CounterName))),
+		0,
+		uintptr(unsafe.Pointer(&counter.Counter)),
+	)
+	if r != 0 {
+		return nil, err
+	}
+	return &counter, nil
+}
+
+func (w *Win32PerformanceCounter) GetValue() (float64, error) {
+	r, _, err := PdhCollectQueryData.Call(uintptr(w.Query))
+	if r != 0 && err != nil {
+		if r == PDH_NO_DATA {
+			return 0.0, fmt.Errorf("%w: this counter has not data", err)
+		}
+		return 0.0, err
+	}
+
+	return GetCounterValue(w.Counter)
+}
+
+func ProcessorQueueLengthCounter() (*Win32PerformanceCounter, error) {
+	return NewWin32PerformanceCounter("processor_queue_length", `\System\Processor Queue Length`)
+}
+
+// WMIQueryWithContext - wraps wmi.Query with a timed-out context to avoid hanging
+func WMIQueryWithContext(ctx context.Context, query string, dst interface{}, connectServerArgs ...interface{}) error {
+	if _, ok := ctx.Deadline(); !ok {
+		ctxTimeout, cancel := context.WithTimeout(ctx, Timeout)
+		defer cancel()
+		ctx = ctxTimeout
+	}
+
+	errChan := make(chan error, 1)
+	go func() {
+		errChan <- wmi.Query(query, dst, connectServerArgs...)
+	}()
+
+	select {
+	case <-ctx.Done():
+		return ctx.Err()
+	case err := <-errChan:
+		return err
+	}
+}
+
+// Convert paths using native DOS format like:
+//   "\Device\HarddiskVolume1\Windows\systemew\file.txt"
+// into:
+//   "C:\Windows\systemew\file.txt"
+func ConvertDOSPath(p string) string {
+	rawDrive := strings.Join(strings.Split(p, `\`)[:3], `\`)
+
+	for d := 'A'; d <= 'Z'; d++ {
+		szDeviceName := string(d) + ":"
+		szTarget := make([]uint16, 512)
+		ret, _, _ := procQueryDosDeviceW.Call(uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(szDeviceName))),
+			uintptr(unsafe.Pointer(&szTarget[0])),
+			uintptr(len(szTarget)))
+		if ret != 0 && windows.UTF16ToString(szTarget[:]) == rawDrive {
+			return filepath.Join(szDeviceName, p[len(rawDrive):])
+		}
+	}
+	return p
+}
+
+type NtStatus uint32
+
+func (s NtStatus) Error() error {
+	if s == 0 {
+		return nil
+	}
+	return fmt.Errorf("NtStatus 0x%08x", uint32(s))
+}
+
+func (s NtStatus) IsError() bool {
+	return s>>30 == 3
+}
+
+type SystemExtendedHandleTableEntryInformation struct {
+	Object                uintptr
+	UniqueProcessId       uintptr
+	HandleValue           uintptr
+	GrantedAccess         uint32
+	CreatorBackTraceIndex uint16
+	ObjectTypeIndex       uint16
+	HandleAttributes      uint32
+	Reserved              uint32
+}
+
+type SystemExtendedHandleInformation struct {
+	NumberOfHandles uintptr
+	Reserved        uintptr
+	Handles         [1]SystemExtendedHandleTableEntryInformation
+}
+
+// CallWithExpandingBuffer https://github.com/hillu/go-ntdll
+func CallWithExpandingBuffer(fn func() NtStatus, buf *[]byte, resultLength *uint32) NtStatus {
+	for {
+		if st := fn(); st == STATUS_BUFFER_OVERFLOW || st == STATUS_BUFFER_TOO_SMALL || st == STATUS_INFO_LENGTH_MISMATCH {
+			if int(*resultLength) <= cap(*buf) {
+				(*reflect.SliceHeader)(unsafe.Pointer(buf)).Len = int(*resultLength)
+			} else {
+				*buf = make([]byte, int(*resultLength))
+			}
+			continue
+		} else {
+			if !st.IsError() {
+				*buf = (*buf)[:int(*resultLength)]
+			}
+			return st
+		}
+	}
+}
+
+func NtQuerySystemInformation(
+	SystemInformationClass uint32,
+	SystemInformation *byte,
+	SystemInformationLength uint32,
+	ReturnLength *uint32,
+) NtStatus {
+	r0, _, _ := ProcNtQuerySystemInformation.Call(
+		uintptr(SystemInformationClass),
+		uintptr(unsafe.Pointer(SystemInformation)),
+		uintptr(SystemInformationLength),
+		uintptr(unsafe.Pointer(ReturnLength)))
+	return NtStatus(r0)
+}

vendor/github.com/shirou/gopsutil/internal/common/sleep.go

@@ -0,0 +1,18 @@
+package common
+
+import (
+	"context"
+	"time"
+)
+
+// Sleep awaits for provided interval.
+// Can be interrupted by context cancelation.
+func Sleep(ctx context.Context, interval time.Duration) error {
+	var timer = time.NewTimer(interval)
+	select {
+	case <-ctx.Done():
+		return ctx.Err()
+	case <-timer.C:
+		return nil
+	}
+}