generator fix - add new message type

Change-Id: I5e2b312e086d18eb7fa3f349750caea20005f530
Signed-off-by: Rastislav Szabo <raszabo@cisco.com>

4 files changed, 22 insertions, 1 deletions

diff --git a/api/api.go b/api/api.go
index afaa8ad..c247417 100644
--- a/api/api.go
+++ b/api/api.go
@@ -28,6 +28,8 @@ const (
 	RequestMessage MessageType = iota
 	// ReplyMessage represents a VPP reply message
 	ReplyMessage
+	// EventMessage represents a VPP notification event message
+	EventMessage
 	// OtherMessage represents other VPP message (e.g. counters)
 	OtherMessage
 )
diff --git a/cmd/binapi-generator/generator.go b/cmd/binapi-generator/generator.go
index e3efe0f..d8420f9 100644
--- a/cmd/binapi-generator/generator.go
+++ b/cmd/binapi-generator/generator.go
@@ -38,6 +38,7 @@ type messageType int
 const (
 	requestMessage messageType = iota // VPP request message
 	replyMessage                      // VPP reply message
+	eventMessage                      // VPP event message
 	otherMessage                      // other VPP message
 )
 
@@ -260,6 +261,8 @@ func generateMessage(ctx *context, w io.Writer, msg *jsongo.JSONNode, isType boo
 				if ok {
 					if j == 2 {
 						if fieldName == "client_index" {
+							// "client_index" as the second member, this might be an event message or a request
+							msgType = eventMessage
 							wasClientIndex = true
 						} else if fieldName == "context" {
 							// reply needs "context" as the second member
@@ -465,6 +468,8 @@ func generateMessageTypeGetter(w io.Writer, structName string, msgType messageTy
 		fmt.Fprintln(w, "\treturn api.RequestMessage")
 	} else if msgType == replyMessage {
 		fmt.Fprintln(w, "\treturn api.ReplyMessage")
+	} else if msgType == eventMessage {
+		fmt.Fprintln(w, "\treturn api.EventMessage")
 	} else {
 		fmt.Fprintln(w, "\treturn api.OtherMessage")
 	}
diff --git a/core/bin_api/vpe/vpe.go b/core/bin_api/vpe/vpe.go
index 51a245b..c11f466 100644
--- a/core/bin_api/vpe/vpe.go
+++ b/core/bin_api/vpe/vpe.go
@@ -1,5 +1,6 @@
+// Code generated by govpp binapi-generator DO NOT EDIT.
 // Package vpe represents the VPP binary API of the 'vpe' VPP module.
-// DO NOT EDIT. Generated from 'bin_api/vpe.api.json'
+// Generated from 'bin_api/vpe.api.json'
 package vpe
 
 import "git.fd.io/govpp.git/api"
diff --git a/core/msg_codec.go b/core/msg_codec.go
index 5614a7e..c72b7f3 100644
--- a/core/msg_codec.go
+++ b/core/msg_codec.go
@@ -43,6 +43,12 @@ type vppReplyHeader struct {
 	Context uint32
 }
 
+// vppEventHeader struct contains header fields implemented by all VPP events.
+type vppEventHeader struct {
+	VlMsgID uint16
+	Context uint32
+}
+
 // vppOtherHeader struct contains header fields implemented by other VPP messages (not requests nor replies).
 type vppOtherHeader struct {
 	VlMsgID uint16
@@ -51,6 +57,7 @@ type vppOtherHeader struct {
 const (
 	vppRequestHeaderSize = 10 // size of a VPP request header
 	vppReplyHeaderSize   = 6  // size of a VPP reply header
+	vppEventHeaderSize   = 6  // size of a VPP event header
 	vppOtherHeaderSize   = 2  // size of the header of other VPP messages
 )
 
@@ -68,6 +75,8 @@ func (*MsgCodec) EncodeMsg(msg api.Message, msgID uint16) ([]byte, error) {
 		header = &vppRequestHeader{VlMsgID: msgID}
 	} else if msg.GetMessageType() == api.ReplyMessage {
 		header = &vppReplyHeader{VlMsgID: msgID}
+	} else if msg.GetMessageType() == api.EventMessage {
+		header = &vppEventHeader{VlMsgID: msgID}
 	} else {
 		header = &vppOtherHeader{VlMsgID: msgID}
 	}
@@ -109,6 +118,8 @@ func (*MsgCodec) DecodeMsg(data []byte, msg api.Message) error {
 		header = &vppRequestHeader{}
 	} else if msg.GetMessageType() == api.ReplyMessage {
 		header = &vppReplyHeader{}
+	} else if msg.GetMessageType() == api.EventMessage {
+		header = &vppEventHeader{}
 	} else {
 		header = &vppOtherHeader{}
 	}
@@ -128,6 +139,8 @@ func (*MsgCodec) DecodeMsg(data []byte, msg api.Message) error {
 		buf = bytes.NewReader(data[vppRequestHeaderSize:])
 	} else if msg.GetMessageType() == api.ReplyMessage {
 		buf = bytes.NewReader(data[vppReplyHeaderSize:])
+	} else if msg.GetMessageType() == api.EventMessage {
+		buf = bytes.NewReader(data[vppEventHeaderSize:])
 	} else {
 		buf = bytes.NewReader(data[vppOtherHeaderSize:])
 	}