github.com/huandu/go@v0.0.0-20151114150818-04e615e41150/misc/cgo/test/setgid_linux.go (about)

     1  // Copyright 2012 The Go Authors.  All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // Test that setgid does not hang on GNU/Linux.
     6  // See https://golang.org/issue/3871 for details.
     7  
     8  package cgotest
     9  
    10  /*
    11  #include <sys/types.h>
    12  #include <unistd.h>
    13  */
    14  import "C"
    15  
    16  import (
    17  	"testing"
    18  	"time"
    19  )
    20  
    21  func testSetgid(t *testing.T) {
    22  	c := make(chan bool)
    23  	go func() {
    24  		C.setgid(0)
    25  		c <- true
    26  	}()
    27  	select {
    28  	case <-c:
    29  	case <-time.After(5 * time.Second):
    30  		t.Error("setgid hung")
    31  	}
    32  }