diff options
Diffstat (limited to 'api/api.go')
| -rw-r--r-- | api/api.go | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -78,7 +78,8 @@ type MessageIdentifier interface { // Channel is the main communication interface with govpp core. It contains two Go channels, one for sending the requests // to VPP and one for receiving the replies from it. The user can access the Go channels directly, or use the helper -// methods provided inside of this package. +// methods provided inside of this package. Do not use the same channel from multiple goroutines concurrently, +// otherwise the responses could mix! Use multiple channels instead. type Channel struct { ReqChan chan *VppRequest // channel for sending the requests to VPP, closing this channel releases all resources in the ChannelProvider ReplyChan chan *VppReply // channel where VPP replies are delivered to @@ -230,7 +231,8 @@ func (ch *Channel) receiveReplyInternal(msg Message) (LastReplyReceived bool, er return false, err } if vppReply.MessageID != expMsgID { - err = fmt.Errorf("invalid message ID %d, expected %d", vppReply.MessageID, expMsgID) + err = fmt.Errorf("invalid message ID %d, expected %d "+ + "(also check if multiple goroutines are not sharing one GoVPP channel)", vppReply.MessageID, expMsgID) return false, err } // decode the message |