[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/prometheus/procfs/zoneinfo.go b/vendor/github.com/prometheus/procfs/zoneinfo.go
new file mode 100644
index 0000000..0b9bb67
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/zoneinfo.go
@@ -0,0 +1,196 @@
+// Copyright 2019 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.
+
+// +build !windows
+
+package procfs
+
+import (
+ "bytes"
+ "fmt"
+ "io/ioutil"
+ "regexp"
+ "strings"
+
+ "github.com/prometheus/procfs/internal/util"
+)
+
+// Zoneinfo holds info parsed from /proc/zoneinfo.
+type Zoneinfo struct {
+ Node string
+ Zone string
+ NrFreePages *int64
+ Min *int64
+ Low *int64
+ High *int64
+ Scanned *int64
+ Spanned *int64
+ Present *int64
+ Managed *int64
+ NrActiveAnon *int64
+ NrInactiveAnon *int64
+ NrIsolatedAnon *int64
+ NrAnonPages *int64
+ NrAnonTransparentHugepages *int64
+ NrActiveFile *int64
+ NrInactiveFile *int64
+ NrIsolatedFile *int64
+ NrFilePages *int64
+ NrSlabReclaimable *int64
+ NrSlabUnreclaimable *int64
+ NrMlockStack *int64
+ NrKernelStack *int64
+ NrMapped *int64
+ NrDirty *int64
+ NrWriteback *int64
+ NrUnevictable *int64
+ NrShmem *int64
+ NrDirtied *int64
+ NrWritten *int64
+ NumaHit *int64
+ NumaMiss *int64
+ NumaForeign *int64
+ NumaInterleave *int64
+ NumaLocal *int64
+ NumaOther *int64
+ Protection []*int64
+}
+
+var nodeZoneRE = regexp.MustCompile(`(\d+), zone\s+(\w+)`)
+
+// Zoneinfo parses an zoneinfo-file (/proc/zoneinfo) and returns a slice of
+// structs containing the relevant info. More information available here:
+// https://www.kernel.org/doc/Documentation/sysctl/vm.txt
+func (fs FS) Zoneinfo() ([]Zoneinfo, error) {
+ data, err := ioutil.ReadFile(fs.proc.Path("zoneinfo"))
+ if err != nil {
+ return nil, fmt.Errorf("error reading zoneinfo %q: %w", fs.proc.Path("zoneinfo"), err)
+ }
+ zoneinfo, err := parseZoneinfo(data)
+ if err != nil {
+ return nil, fmt.Errorf("error parsing zoneinfo %q: %w", fs.proc.Path("zoneinfo"), err)
+ }
+ return zoneinfo, nil
+}
+
+func parseZoneinfo(zoneinfoData []byte) ([]Zoneinfo, error) {
+
+ zoneinfo := []Zoneinfo{}
+
+ zoneinfoBlocks := bytes.Split(zoneinfoData, []byte("\nNode"))
+ for _, block := range zoneinfoBlocks {
+ var zoneinfoElement Zoneinfo
+ lines := strings.Split(string(block), "\n")
+ for _, line := range lines {
+
+ if nodeZone := nodeZoneRE.FindStringSubmatch(line); nodeZone != nil {
+ zoneinfoElement.Node = nodeZone[1]
+ zoneinfoElement.Zone = nodeZone[2]
+ continue
+ }
+ if strings.HasPrefix(strings.TrimSpace(line), "per-node stats") {
+ zoneinfoElement.Zone = ""
+ continue
+ }
+ parts := strings.Fields(strings.TrimSpace(line))
+ if len(parts) < 2 {
+ continue
+ }
+ vp := util.NewValueParser(parts[1])
+ switch parts[0] {
+ case "nr_free_pages":
+ zoneinfoElement.NrFreePages = vp.PInt64()
+ case "min":
+ zoneinfoElement.Min = vp.PInt64()
+ case "low":
+ zoneinfoElement.Low = vp.PInt64()
+ case "high":
+ zoneinfoElement.High = vp.PInt64()
+ case "scanned":
+ zoneinfoElement.Scanned = vp.PInt64()
+ case "spanned":
+ zoneinfoElement.Spanned = vp.PInt64()
+ case "present":
+ zoneinfoElement.Present = vp.PInt64()
+ case "managed":
+ zoneinfoElement.Managed = vp.PInt64()
+ case "nr_active_anon":
+ zoneinfoElement.NrActiveAnon = vp.PInt64()
+ case "nr_inactive_anon":
+ zoneinfoElement.NrInactiveAnon = vp.PInt64()
+ case "nr_isolated_anon":
+ zoneinfoElement.NrIsolatedAnon = vp.PInt64()
+ case "nr_anon_pages":
+ zoneinfoElement.NrAnonPages = vp.PInt64()
+ case "nr_anon_transparent_hugepages":
+ zoneinfoElement.NrAnonTransparentHugepages = vp.PInt64()
+ case "nr_active_file":
+ zoneinfoElement.NrActiveFile = vp.PInt64()
+ case "nr_inactive_file":
+ zoneinfoElement.NrInactiveFile = vp.PInt64()
+ case "nr_isolated_file":
+ zoneinfoElement.NrIsolatedFile = vp.PInt64()
+ case "nr_file_pages":
+ zoneinfoElement.NrFilePages = vp.PInt64()
+ case "nr_slab_reclaimable":
+ zoneinfoElement.NrSlabReclaimable = vp.PInt64()
+ case "nr_slab_unreclaimable":
+ zoneinfoElement.NrSlabUnreclaimable = vp.PInt64()
+ case "nr_mlock_stack":
+ zoneinfoElement.NrMlockStack = vp.PInt64()
+ case "nr_kernel_stack":
+ zoneinfoElement.NrKernelStack = vp.PInt64()
+ case "nr_mapped":
+ zoneinfoElement.NrMapped = vp.PInt64()
+ case "nr_dirty":
+ zoneinfoElement.NrDirty = vp.PInt64()
+ case "nr_writeback":
+ zoneinfoElement.NrWriteback = vp.PInt64()
+ case "nr_unevictable":
+ zoneinfoElement.NrUnevictable = vp.PInt64()
+ case "nr_shmem":
+ zoneinfoElement.NrShmem = vp.PInt64()
+ case "nr_dirtied":
+ zoneinfoElement.NrDirtied = vp.PInt64()
+ case "nr_written":
+ zoneinfoElement.NrWritten = vp.PInt64()
+ case "numa_hit":
+ zoneinfoElement.NumaHit = vp.PInt64()
+ case "numa_miss":
+ zoneinfoElement.NumaMiss = vp.PInt64()
+ case "numa_foreign":
+ zoneinfoElement.NumaForeign = vp.PInt64()
+ case "numa_interleave":
+ zoneinfoElement.NumaInterleave = vp.PInt64()
+ case "numa_local":
+ zoneinfoElement.NumaLocal = vp.PInt64()
+ case "numa_other":
+ zoneinfoElement.NumaOther = vp.PInt64()
+ case "protection:":
+ protectionParts := strings.Split(line, ":")
+ protectionValues := strings.Replace(protectionParts[1], "(", "", 1)
+ protectionValues = strings.Replace(protectionValues, ")", "", 1)
+ protectionValues = strings.TrimSpace(protectionValues)
+ protectionStringMap := strings.Split(protectionValues, ", ")
+ val, err := util.ParsePInt64s(protectionStringMap)
+ if err == nil {
+ zoneinfoElement.Protection = val
+ }
+ }
+
+ }
+
+ zoneinfo = append(zoneinfo, zoneinfoElement)
+ }
+ return zoneinfo, nil
+}