cord-776 create build / runtime containers for autmation uservices
Change-Id: I246973192adef56a250ffe93a5f65fff488840c1
diff --git a/switchq/vendor/github.com/juju/utils/gomaxprocs.go b/switchq/vendor/github.com/juju/utils/gomaxprocs.go
new file mode 100644
index 0000000..5977a86
--- /dev/null
+++ b/switchq/vendor/github.com/juju/utils/gomaxprocs.go
@@ -0,0 +1,26 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package utils
+
+import (
+ "os"
+ "runtime"
+)
+
+var gomaxprocs = runtime.GOMAXPROCS
+var numCPU = runtime.NumCPU
+
+// UseMultipleCPUs sets GOMAXPROCS to the number of CPU cores unless it has
+// already been overridden by the GOMAXPROCS environment variable.
+func UseMultipleCPUs() {
+ if envGOMAXPROCS := os.Getenv("GOMAXPROCS"); envGOMAXPROCS != "" {
+ n := gomaxprocs(0)
+ logger.Debugf("GOMAXPROCS already set in environment to %q, %d internally",
+ envGOMAXPROCS, n)
+ return
+ }
+ n := numCPU()
+ logger.Debugf("setting GOMAXPROCS to %d", n)
+ gomaxprocs(n)
+}