initial add - go fmt on grpc
Change-Id: Ib0afadd2fe5571d1456a091f94f5644458f7d3f4
diff --git a/openflow/utils.go b/openflow/utils.go
new file mode 100644
index 0000000..160b2ab
--- /dev/null
+++ b/openflow/utils.go
@@ -0,0 +1,40 @@
+/*
+ Copyright 2017 the original author or 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 openflow
+
+import (
+ "fmt"
+ "strings"
+ "sync"
+)
+
+var mu sync.Mutex
+var xid uint32 = 1
+
+func GetXid() uint32 {
+ mu.Lock()
+ defer mu.Unlock()
+ xid++
+ return xid
+}
+func PadString(value string, padSize int) string {
+ size := len(value)
+ nullsNeeded := padSize - size
+ null := fmt.Sprintf("%c", '\000')
+ padded := strings.Repeat(null, nullsNeeded)
+ return fmt.Sprintf("%s%s", value, padded)
+}