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path: root/pkg/flipcall/flipcall_example_test.go
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Diffstat (limited to 'pkg/flipcall/flipcall_example_test.go')
-rw-r--r--pkg/flipcall/flipcall_example_test.go112
1 files changed, 0 insertions, 112 deletions
diff --git a/pkg/flipcall/flipcall_example_test.go b/pkg/flipcall/flipcall_example_test.go
deleted file mode 100644
index 8d88b845d..000000000
--- a/pkg/flipcall/flipcall_example_test.go
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright 2019 The gVisor 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 flipcall
-
-import (
- "bytes"
- "fmt"
- "sync"
-)
-
-func Example() {
- const (
- reqPrefix = "request "
- respPrefix = "response "
- count = 3
- maxMessageLen = len(respPrefix) + 1 // 1 digit
- )
-
- pwa, err := NewPacketWindowAllocator()
- if err != nil {
- panic(err)
- }
- defer pwa.Destroy()
- pwd, err := pwa.Allocate(PacketWindowLengthForDataCap(uint32(maxMessageLen)))
- if err != nil {
- panic(err)
- }
- var clientEP Endpoint
- if err := clientEP.Init(ClientSide, pwd); err != nil {
- panic(err)
- }
- defer clientEP.Destroy()
- var serverEP Endpoint
- if err := serverEP.Init(ServerSide, pwd); err != nil {
- panic(err)
- }
- defer serverEP.Destroy()
-
- var serverRun sync.WaitGroup
- serverRun.Add(1)
- go func() {
- defer serverRun.Done()
- i := 0
- var buf bytes.Buffer
- // wait for first request
- n, err := serverEP.RecvFirst()
- if err != nil {
- return
- }
- for {
- // read request
- buf.Reset()
- buf.Write(serverEP.Data()[:n])
- fmt.Println(buf.String())
- // write response
- buf.Reset()
- fmt.Fprintf(&buf, "%s%d", respPrefix, i)
- copy(serverEP.Data(), buf.Bytes())
- // send response and wait for next request
- n, err = serverEP.SendRecv(uint32(buf.Len()))
- if err != nil {
- return
- }
- i++
- }
- }()
- defer func() {
- serverEP.Shutdown()
- serverRun.Wait()
- }()
-
- // establish connection as client
- if err := clientEP.Connect(); err != nil {
- panic(err)
- }
- var buf bytes.Buffer
- for i := 0; i < count; i++ {
- // write request
- buf.Reset()
- fmt.Fprintf(&buf, "%s%d", reqPrefix, i)
- copy(clientEP.Data(), buf.Bytes())
- // send request and wait for response
- n, err := clientEP.SendRecv(uint32(buf.Len()))
- if err != nil {
- panic(err)
- }
- // read response
- buf.Reset()
- buf.Write(clientEP.Data()[:n])
- fmt.Println(buf.String())
- }
-
- // Output:
- // request 0
- // response 0
- // request 1
- // response 1
- // request 2
- // response 2
-}