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authorDaniel J Walsh <dwalsh@redhat.com>2018-01-10 15:58:18 -0500
committerAtomic Bot <atomic-devel@projectatomic.io>2018-01-11 12:39:06 +0000
commitdd0d35deb098b63f8c5be7ef9d8d63c16760221b (patch)
tree695d44a49d636e45e4121c9aecfb3d8c0e1cca06 /vendor/github.com/prometheus/procfs/mdstat.go
parente6be800ec633342aef656e0a2ed0bdc4519796d9 (diff)
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Add support for shm-size.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #206 Approved by: TomSweeneyRedHat
Diffstat (limited to 'vendor/github.com/prometheus/procfs/mdstat.go')
-rw-r--r--vendor/github.com/prometheus/procfs/mdstat.go138
1 files changed, 0 insertions, 138 deletions
diff --git a/vendor/github.com/prometheus/procfs/mdstat.go b/vendor/github.com/prometheus/procfs/mdstat.go
deleted file mode 100644
index d7a248c0d..000000000
--- a/vendor/github.com/prometheus/procfs/mdstat.go
+++ /dev/null
@@ -1,138 +0,0 @@
-package procfs
-
-import (
- "fmt"
- "io/ioutil"
- "regexp"
- "strconv"
- "strings"
-)
-
-var (
- statuslineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`)
- buildlineRE = regexp.MustCompile(`\((\d+)/\d+\)`)
-)
-
-// MDStat holds info parsed from /proc/mdstat.
-type MDStat struct {
- // Name of the device.
- Name string
- // activity-state of the device.
- ActivityState string
- // Number of active disks.
- DisksActive int64
- // Total number of disks the device consists of.
- DisksTotal int64
- // Number of blocks the device holds.
- BlocksTotal int64
- // Number of blocks on the device that are in sync.
- BlocksSynced int64
-}
-
-// ParseMDStat parses an mdstat-file and returns a struct with the relevant infos.
-func (fs FS) ParseMDStat() (mdstates []MDStat, err error) {
- mdStatusFilePath := fs.Path("mdstat")
- content, err := ioutil.ReadFile(mdStatusFilePath)
- if err != nil {
- return []MDStat{}, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err)
- }
-
- mdStates := []MDStat{}
- lines := strings.Split(string(content), "\n")
- for i, l := range lines {
- if l == "" {
- continue
- }
- if l[0] == ' ' {
- continue
- }
- if strings.HasPrefix(l, "Personalities") || strings.HasPrefix(l, "unused") {
- continue
- }
-
- mainLine := strings.Split(l, " ")
- if len(mainLine) < 3 {
- return mdStates, fmt.Errorf("error parsing mdline: %s", l)
- }
- mdName := mainLine[0]
- activityState := mainLine[2]
-
- if len(lines) <= i+3 {
- return mdStates, fmt.Errorf(
- "error parsing %s: too few lines for md device %s",
- mdStatusFilePath,
- mdName,
- )
- }
-
- active, total, size, err := evalStatusline(lines[i+1])
- if err != nil {
- return mdStates, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err)
- }
-
- // j is the line number of the syncing-line.
- j := i + 2
- if strings.Contains(lines[i+2], "bitmap") { // skip bitmap line
- j = i + 3
- }
-
- // If device is syncing at the moment, get the number of currently
- // synced bytes, otherwise that number equals the size of the device.
- syncedBlocks := size
- if strings.Contains(lines[j], "recovery") || strings.Contains(lines[j], "resync") {
- syncedBlocks, err = evalBuildline(lines[j])
- if err != nil {
- return mdStates, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err)
- }
- }
-
- mdStates = append(mdStates, MDStat{
- Name: mdName,
- ActivityState: activityState,
- DisksActive: active,
- DisksTotal: total,
- BlocksTotal: size,
- BlocksSynced: syncedBlocks,
- })
- }
-
- return mdStates, nil
-}
-
-func evalStatusline(statusline string) (active, total, size int64, err error) {
- matches := statuslineRE.FindStringSubmatch(statusline)
- if len(matches) != 4 {
- return 0, 0, 0, fmt.Errorf("unexpected statusline: %s", statusline)
- }
-
- size, err = strconv.ParseInt(matches[1], 10, 64)
- if err != nil {
- return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err)
- }
-
- total, err = strconv.ParseInt(matches[2], 10, 64)
- if err != nil {
- return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err)
- }
-
- active, err = strconv.ParseInt(matches[3], 10, 64)
- if err != nil {
- return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err)
- }
-
- return active, total, size, nil
-}
-
-func evalBuildline(buildline string) (syncedBlocks int64, err error) {
- matches := buildlineRE.FindStringSubmatch(buildline)
- if len(matches) != 2 {
- return 0, fmt.Errorf("unexpected buildline: %s", buildline)
- }
-
- syncedBlocks, err = strconv.ParseInt(matches[1], 10, 64)
- if err != nil {
- return 0, fmt.Errorf("%s in buildline: %s", err, buildline)
- }
-
- return syncedBlocks, nil
-}