1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
// Copyright (c) 2019 Cisco and/or its affiliates.
//
// 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 proxy
import (
"log"
"net"
"net/http"
"net/rpc"
"git.fd.io/govpp.git/adapter"
"git.fd.io/govpp.git/core"
)
// Server defines a proxy server that serves client requests to stats and binapi.
type Server struct {
rpc *rpc.Server
statsConn *core.StatsConnection
binapiConn *core.Connection
}
func NewServer() *Server {
return &Server{
rpc: rpc.NewServer(),
}
}
func (p *Server) ConnectStats(stats adapter.StatsAPI) error {
var err error
p.statsConn, err = core.ConnectStats(stats)
if err != nil {
return err
}
return nil
}
func (p *Server) DisconnectStats() {
if p.statsConn != nil {
p.statsConn.Disconnect()
}
}
func (p *Server) ConnectBinapi(binapi adapter.VppAPI) error {
var err error
p.binapiConn, err = core.Connect(binapi)
if err != nil {
return err
}
return nil
}
func (p *Server) DisconnectBinapi() {
if p.binapiConn != nil {
p.binapiConn.Disconnect()
}
}
func (p *Server) ListenAndServe(addr string) {
if p.statsConn != nil {
statsRPC := NewStatsRPC(p.statsConn)
if err := p.rpc.Register(statsRPC); err != nil {
panic(err)
}
}
if p.binapiConn != nil {
ch, err := p.binapiConn.NewAPIChannel()
if err != nil {
panic(err)
}
binapiRPC := NewBinapiRPC(ch)
if err := p.rpc.Register(binapiRPC); err != nil {
panic(err)
}
}
p.rpc.HandleHTTP(rpc.DefaultRPCPath, rpc.DefaultDebugPath)
l, e := net.Listen("tcp", addr)
if e != nil {
log.Fatal("listen error:", e)
}
defer l.Close()
log.Printf("proxy serving on: %v", addr)
if err := http.Serve(l, nil); err != nil {
log.Fatalln(err)
}
}
|
