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use os.Pipe to avoid blocking #1

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35fcdb3
read from stdin
cr1cr1 Oct 12, 2023
97b9c89
use io.Pipe
cr1cr1 Oct 12, 2023
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4 changes: 4 additions & 0 deletions c/seg.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,10 @@ int main(int argc, char* argv[])
setvbuf(stdout, NULL, _IOLBF, 0);
setvbuf(stderr, NULL, _IOLBF, 0);

char buffer[100];
fgets(buffer, 100, stdin);
printf("From stdin: %s\n", buffer);

printf("C test\n");
sleep(1);
printf("1\n");
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25 changes: 9 additions & 16 deletions gocmd/gocmd.go
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Original file line number Diff line number Diff line change
@@ -1,30 +1,23 @@
package main

import (
"bytes"
"fmt"
"io"
"time"

"github.com/go-cmd/cmd"
)

//Dummy reader which does nothing
type TestReader struct {
}

//Read get's called by go-cmd
func (rt *TestReader) Read(p []byte) (n int, err error) {
return 0, nil
}

func NewTestReader() *TestReader {
rt := TestReader{}
return &rt
}

func main() {
testCmd := cmd.NewCmd("../c/seg")
rt := NewTestReader()
statusChan := testCmd.StartWithStdin(rt)
reader, writer := io.Pipe()
go func() {
_, _ = io.Copy(writer, bytes.NewBufferString("hello from the other side\n"))
// close immediately
_ = writer.Close()
}()
statusChan := testCmd.StartWithStdin(reader)

ticker := time.NewTicker(1 * time.Second)

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