execution hangs when I try to open named pipe file

[m-abdalrahman]

What version of Go are you using (go version)?

go version go1.20 linux/amd64

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

go env Output

GO111MODULE=""
GOARCH="amd64"
GOBIN="/media/user/sda7/golang/go-lib/bin"
GOCACHE="/home/user/.cache/go-build"
GOENV="/home/user/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/media/user/sda7/golang/go-lib/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/media/user/sda7/golang/go-lib"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.20"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/dev/null"
GOWORK=""
CGO_CFLAGS="-O2 -g"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-O2 -g"
CGO_FFLAGS="-O2 -g"
CGO_LDFLAGS="-O2 -g"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build4146817264=/tmp/go-build -gno-record-gcc-switches"

What did you do?

trying to write to named pipe file, example

package main

import (
	"fmt"
	"log"
	"os"
	"syscall"
)

func main() {
	pipePath := "/tmp/myfifo"

	// Create the named pipe file
	err := syscall.Mkfifo(pipePath, 0666)
	if err != nil {
		log.Fatal(err)
	}

	// Open the named pipe file for writing
	file, err := os.OpenFile(pipePath, os.O_WRONLY, os.ModeNamedPipe)
	if err != nil {
		log.Fatal(err)
	}
	defer file.Close()

	fmt.Println("Hello")

	// Write data to the named pipe file
	data := []byte("Hello, world!")
	_, err = file.Write(data)
	if err != nil {
		log.Fatal(err)
	}

	// Remove the named pipe file
	err = os.Remove(pipePath)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println("done")
}

What did you expect to see?

printing Hello, and printing done

What did you see instead?

nothing this code standing at os.OpenFile, waiting

[seankhliao]

There's nothing reading from your pipe.

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