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authorMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
committerMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
commita031b83a09a8628435317a03f199cdc18b78262f (patch)
treebc017a96769ce6de33745b8b0b1304ccf38e9df0 /vendor/github.com/docker/distribution/context/util.go
parent2b74391cd5281f6fdf391ff8ad50fd1490f6bf89 (diff)
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Initial checkin from CRI-O repo
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Diffstat (limited to 'vendor/github.com/docker/distribution/context/util.go')
-rw-r--r--vendor/github.com/docker/distribution/context/util.go24
1 files changed, 24 insertions, 0 deletions
diff --git a/vendor/github.com/docker/distribution/context/util.go b/vendor/github.com/docker/distribution/context/util.go
new file mode 100644
index 000000000..cb9ef52e3
--- /dev/null
+++ b/vendor/github.com/docker/distribution/context/util.go
@@ -0,0 +1,24 @@
+package context
+
+import (
+ "time"
+)
+
+// Since looks up key, which should be a time.Time, and returns the duration
+// since that time. If the key is not found, the value returned will be zero.
+// This is helpful when inferring metrics related to context execution times.
+func Since(ctx Context, key interface{}) time.Duration {
+ if startedAt, ok := ctx.Value(key).(time.Time); ok {
+ return time.Since(startedAt)
+ }
+ return 0
+}
+
+// GetStringValue returns a string value from the context. The empty string
+// will be returned if not found.
+func GetStringValue(ctx Context, key interface{}) (value string) {
+ if valuev, ok := ctx.Value(key).(string); ok {
+ value = valuev
+ }
+ return value
+}