[VOL-5486] Fix deprecated versions
Change-Id: If0b888d6c2f33b2f415c8b03b08dc994bb3df3f4
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/github.com/prometheus/procfs/stat.go b/vendor/github.com/prometheus/procfs/stat.go
new file mode 100644
index 0000000..e36b41c
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/stat.go
@@ -0,0 +1,258 @@
+// Copyright 2018 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package procfs
+
+import (
+ "bufio"
+ "bytes"
+ "fmt"
+ "io"
+ "strconv"
+ "strings"
+
+ "github.com/prometheus/procfs/internal/fs"
+ "github.com/prometheus/procfs/internal/util"
+)
+
+// CPUStat shows how much time the cpu spend in various stages.
+type CPUStat struct {
+ User float64
+ Nice float64
+ System float64
+ Idle float64
+ Iowait float64
+ IRQ float64
+ SoftIRQ float64
+ Steal float64
+ Guest float64
+ GuestNice float64
+}
+
+// SoftIRQStat represent the softirq statistics as exported in the procfs stat file.
+// A nice introduction can be found at https://0xax.gitbooks.io/linux-insides/content/interrupts/interrupts-9.html
+// It is possible to get per-cpu stats by reading `/proc/softirqs`.
+type SoftIRQStat struct {
+ Hi uint64
+ Timer uint64
+ NetTx uint64
+ NetRx uint64
+ Block uint64
+ BlockIoPoll uint64
+ Tasklet uint64
+ Sched uint64
+ Hrtimer uint64
+ Rcu uint64
+}
+
+// Stat represents kernel/system statistics.
+type Stat struct {
+ // Boot time in seconds since the Epoch.
+ BootTime uint64
+ // Summed up cpu statistics.
+ CPUTotal CPUStat
+ // Per-CPU statistics.
+ CPU map[int64]CPUStat
+ // Number of times interrupts were handled, which contains numbered and unnumbered IRQs.
+ IRQTotal uint64
+ // Number of times a numbered IRQ was triggered.
+ IRQ []uint64
+ // Number of times a context switch happened.
+ ContextSwitches uint64
+ // Number of times a process was created.
+ ProcessCreated uint64
+ // Number of processes currently running.
+ ProcessesRunning uint64
+ // Number of processes currently blocked (waiting for IO).
+ ProcessesBlocked uint64
+ // Number of times a softirq was scheduled.
+ SoftIRQTotal uint64
+ // Detailed softirq statistics.
+ SoftIRQ SoftIRQStat
+}
+
+// Parse a cpu statistics line and returns the CPUStat struct plus the cpu id (or -1 for the overall sum).
+func parseCPUStat(line string) (CPUStat, int64, error) {
+ cpuStat := CPUStat{}
+ var cpu string
+
+ count, err := fmt.Sscanf(line, "%s %f %f %f %f %f %f %f %f %f %f",
+ &cpu,
+ &cpuStat.User, &cpuStat.Nice, &cpuStat.System, &cpuStat.Idle,
+ &cpuStat.Iowait, &cpuStat.IRQ, &cpuStat.SoftIRQ, &cpuStat.Steal,
+ &cpuStat.Guest, &cpuStat.GuestNice)
+
+ if err != nil && err != io.EOF {
+ return CPUStat{}, -1, fmt.Errorf("%w: couldn't parse %q (cpu): %w", ErrFileParse, line, err)
+ }
+ if count == 0 {
+ return CPUStat{}, -1, fmt.Errorf("%w: couldn't parse %q (cpu): 0 elements parsed", ErrFileParse, line)
+ }
+
+ cpuStat.User /= userHZ
+ cpuStat.Nice /= userHZ
+ cpuStat.System /= userHZ
+ cpuStat.Idle /= userHZ
+ cpuStat.Iowait /= userHZ
+ cpuStat.IRQ /= userHZ
+ cpuStat.SoftIRQ /= userHZ
+ cpuStat.Steal /= userHZ
+ cpuStat.Guest /= userHZ
+ cpuStat.GuestNice /= userHZ
+
+ if cpu == "cpu" {
+ return cpuStat, -1, nil
+ }
+
+ cpuID, err := strconv.ParseInt(cpu[3:], 10, 64)
+ if err != nil {
+ return CPUStat{}, -1, fmt.Errorf("%w: couldn't parse %q (cpu/cpuid): %w", ErrFileParse, line, err)
+ }
+
+ return cpuStat, cpuID, nil
+}
+
+// Parse a softirq line.
+func parseSoftIRQStat(line string) (SoftIRQStat, uint64, error) {
+ softIRQStat := SoftIRQStat{}
+ var total uint64
+ var prefix string
+
+ _, err := fmt.Sscanf(line, "%s %d %d %d %d %d %d %d %d %d %d %d",
+ &prefix, &total,
+ &softIRQStat.Hi, &softIRQStat.Timer, &softIRQStat.NetTx, &softIRQStat.NetRx,
+ &softIRQStat.Block, &softIRQStat.BlockIoPoll,
+ &softIRQStat.Tasklet, &softIRQStat.Sched,
+ &softIRQStat.Hrtimer, &softIRQStat.Rcu)
+
+ if err != nil {
+ return SoftIRQStat{}, 0, fmt.Errorf("%w: couldn't parse %q (softirq): %w", ErrFileParse, line, err)
+ }
+
+ return softIRQStat, total, nil
+}
+
+// NewStat returns information about current cpu/process statistics.
+// See https://www.kernel.org/doc/Documentation/filesystems/proc.txt
+//
+// Deprecated: Use fs.Stat() instead.
+func NewStat() (Stat, error) {
+ fs, err := NewFS(fs.DefaultProcMountPoint)
+ if err != nil {
+ return Stat{}, err
+ }
+ return fs.Stat()
+}
+
+// NewStat returns information about current cpu/process statistics.
+// See: https://www.kernel.org/doc/Documentation/filesystems/proc.txt
+//
+// Deprecated: Use fs.Stat() instead.
+func (fs FS) NewStat() (Stat, error) {
+ return fs.Stat()
+}
+
+// Stat returns information about current cpu/process statistics.
+// See: https://www.kernel.org/doc/Documentation/filesystems/proc.txt
+func (fs FS) Stat() (Stat, error) {
+ fileName := fs.proc.Path("stat")
+ data, err := util.ReadFileNoStat(fileName)
+ if err != nil {
+ return Stat{}, err
+ }
+ procStat, err := parseStat(bytes.NewReader(data), fileName)
+ if err != nil {
+ return Stat{}, err
+ }
+ return procStat, nil
+}
+
+// parseStat parses the metrics from /proc/[pid]/stat.
+func parseStat(r io.Reader, fileName string) (Stat, error) {
+ var (
+ scanner = bufio.NewScanner(r)
+ stat = Stat{
+ CPU: make(map[int64]CPUStat),
+ }
+ err error
+ )
+
+ // Increase default scanner buffer to handle very long `intr` lines.
+ buf := make([]byte, 0, 8*1024)
+ scanner.Buffer(buf, 1024*1024)
+
+ for scanner.Scan() {
+ line := scanner.Text()
+ parts := strings.Fields(scanner.Text())
+ // require at least <key> <value>
+ if len(parts) < 2 {
+ continue
+ }
+ switch {
+ case parts[0] == "btime":
+ if stat.BootTime, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q (btime): %w", ErrFileParse, parts[1], err)
+ }
+ case parts[0] == "intr":
+ if stat.IRQTotal, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q (intr): %w", ErrFileParse, parts[1], err)
+ }
+ numberedIRQs := parts[2:]
+ stat.IRQ = make([]uint64, len(numberedIRQs))
+ for i, count := range numberedIRQs {
+ if stat.IRQ[i], err = strconv.ParseUint(count, 10, 64); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q (intr%d): %w", ErrFileParse, count, i, err)
+ }
+ }
+ case parts[0] == "ctxt":
+ if stat.ContextSwitches, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q (ctxt): %w", ErrFileParse, parts[1], err)
+ }
+ case parts[0] == "processes":
+ if stat.ProcessCreated, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q (processes): %w", ErrFileParse, parts[1], err)
+ }
+ case parts[0] == "procs_running":
+ if stat.ProcessesRunning, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q (procs_running): %w", ErrFileParse, parts[1], err)
+ }
+ case parts[0] == "procs_blocked":
+ if stat.ProcessesBlocked, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q (procs_blocked): %w", ErrFileParse, parts[1], err)
+ }
+ case parts[0] == "softirq":
+ softIRQStats, total, err := parseSoftIRQStat(line)
+ if err != nil {
+ return Stat{}, err
+ }
+ stat.SoftIRQTotal = total
+ stat.SoftIRQ = softIRQStats
+ case strings.HasPrefix(parts[0], "cpu"):
+ cpuStat, cpuID, err := parseCPUStat(line)
+ if err != nil {
+ return Stat{}, err
+ }
+ if cpuID == -1 {
+ stat.CPUTotal = cpuStat
+ } else {
+ stat.CPU[cpuID] = cpuStat
+ }
+ }
+ }
+
+ if err := scanner.Err(); err != nil {
+ return Stat{}, fmt.Errorf("%w: couldn't parse %q: %w", ErrFileParse, fileName, err)
+ }
+
+ return stat, nil
+}