[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/prometheus/procfs/loadavg.go b/vendor/github.com/prometheus/procfs/loadavg.go
new file mode 100644
index 0000000..0cce190
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/loadavg.go
@@ -0,0 +1,62 @@
+// 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.
+
+package procfs
+
+import (
+ "fmt"
+ "strconv"
+ "strings"
+
+ "github.com/prometheus/procfs/internal/util"
+)
+
+// LoadAvg represents an entry in /proc/loadavg
+type LoadAvg struct {
+ Load1 float64
+ Load5 float64
+ Load15 float64
+}
+
+// LoadAvg returns loadavg from /proc.
+func (fs FS) LoadAvg() (*LoadAvg, error) {
+ path := fs.proc.Path("loadavg")
+
+ data, err := util.ReadFileNoStat(path)
+ if err != nil {
+ return nil, err
+ }
+ return parseLoad(data)
+}
+
+// Parse /proc loadavg and return 1m, 5m and 15m.
+func parseLoad(loadavgBytes []byte) (*LoadAvg, error) {
+ loads := make([]float64, 3)
+ parts := strings.Fields(string(loadavgBytes))
+ if len(parts) < 3 {
+ return nil, fmt.Errorf("malformed loadavg line: too few fields in loadavg string: %q", string(loadavgBytes))
+ }
+
+ var err error
+ for i, load := range parts[0:3] {
+ loads[i], err = strconv.ParseFloat(load, 64)
+ if err != nil {
+ return nil, fmt.Errorf("could not parse load %q: %w", load, err)
+ }
+ }
+ return &LoadAvg{
+ Load1: loads[0],
+ Load5: loads[1],
+ Load15: loads[2],
+ }, nil
+}