84 lines
2.0 KiB
Go
84 lines
2.0 KiB
Go
// Copyright 2018 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Binary uds-test-app opens a socket and reads a series of numbers
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// which are then written to an output file.
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package main
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import (
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"flag"
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"fmt"
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"log"
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"net"
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"os"
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"strconv"
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"time"
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)
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var (
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fileName = flag.String("file", "", "name of output file")
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socketPath = flag.String("socket", "", "path to socket")
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)
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func server(listener net.Listener, f *os.File) {
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buf := make([]byte, 16)
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for {
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c, err := listener.Accept()
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if err != nil {
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log.Fatal("error accepting connection:", err)
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}
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nr, err := c.Read(buf)
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if err != nil {
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log.Fatal("error reading from buf:", err)
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}
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data := buf[0:nr]
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fmt.Fprintf(f, string(data)+"\n")
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}
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}
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func main() {
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flag.Parse()
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if *fileName == "" || *socketPath == "" {
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log.Fatalf("Flags cannot be empty, given: fileName=%s, socketPath=%s", *fileName, *socketPath)
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}
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outputFile, err := os.OpenFile(*fileName, os.O_WRONLY|os.O_CREATE, 0666)
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if err != nil {
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log.Fatal("error opening output file:", err)
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}
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socket := *socketPath
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defer os.Remove(socket)
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listener, err := net.Listen("unix", socket)
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if err != nil {
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log.Fatal("error listening on socket:", err)
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}
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go server(listener, outputFile)
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for i := 0; ; i++ {
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conn, err := net.Dial("unix", socket)
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if err != nil {
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log.Fatal("error dialing:", err)
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}
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if _, err := conn.Write([]byte(strconv.Itoa(i))); err != nil {
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log.Fatal("error writing:", err)
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}
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conn.Close()
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time.Sleep(100 * time.Millisecond)
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}
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}
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