github.com/bir3/gocompiler@v0.9.2202/src/cmd/cgo/internal/test/setgid2_linux.go (about) 1 // Copyright 2022 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 // Stress test setgid and thread creation. A thread 6 // can get a SIGSETXID signal early on at thread 7 // initialization, causing crash. See issue 53374. 8 9 package cgotest 10 11 /* 12 #include <sys/types.h> 13 #include <unistd.h> 14 */ 15 import "C" 16 17 import ( 18 "runtime" 19 "testing" 20 ) 21 22 func testSetgidStress(t *testing.T) { 23 const N = 50 24 ch := make(chan int, N) 25 for i := 0; i < N; i++ { 26 go func() { 27 C.setgid(0) 28 ch <- 1 29 runtime.LockOSThread() // so every goroutine uses a new thread 30 }() 31 } 32 for i := 0; i < N; i++ { 33 <-ch 34 } 35 }