cord-776 create build / runtime containers for autmation uservices
Change-Id: I246973192adef56a250ffe93a5f65fff488840c1
diff --git a/switchq/vendor/github.com/juju/utils/timeit.go b/switchq/vendor/github.com/juju/utils/timeit.go
new file mode 100644
index 0000000..172b593
--- /dev/null
+++ b/switchq/vendor/github.com/juju/utils/timeit.go
@@ -0,0 +1,57 @@
+// Copyright 2013 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package utils
+
+import (
+ "fmt"
+ "os"
+ "time"
+)
+
+type timer struct {
+ action string
+ start time.Time
+ depth int
+ duration time.Duration
+ subActions []*timer
+}
+
+func (t *timer) String() string {
+ this := fmt.Sprintf("%.3fs %*s%s\n", t.duration.Seconds(), t.depth, "", t.action)
+ for _, sub := range t.subActions {
+ this += sub.String()
+ }
+ return this
+}
+
+var stack []*timer
+
+// Start a timer, used for tracking time spent.
+// Generally used with either defer, as in:
+// defer utils.Timeit("my func")()
+// Which will track how much time is spent in your function. Or
+// if you want to track the time spent in a function you are calling
+// then you would use:
+// toc := utils.Timeit("anotherFunc()")
+// anotherFunc()
+// toc()
+// This tracks nested calls by indenting the output, and will print out the
+// full stack of timing when we reach the top of the stack.
+func Timeit(action string) func() {
+ cur := &timer{action: action, start: time.Now(), depth: len(stack)}
+ if len(stack) != 0 {
+ tip := stack[len(stack)-1]
+ tip.subActions = append(tip.subActions, cur)
+ }
+ stack = append(stack, cur)
+ return func() {
+ cur.duration = time.Since(cur.start)
+ if len(stack) == 0 || cur == stack[0] {
+ fmt.Fprint(os.Stderr, cur)
+ stack = nil
+ } else {
+ stack = stack[0 : len(stack)-1]
+ }
+ }
+}