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c4770b991b
NPTL uses SIGRTMIN (signal 32) to effect thread cancellation. Go's runtime replaces NPTL's signal handler with its own, and ends up aborting if a C library that ends up calling pthread_cancel is used. This patch prevents runtime from replacing NPTL's handler. Fixes #6997. R=golang-codereviews, iant, dvyukov CC=golang-codereviews https://golang.org/cl/47540043
41 lines
859 B
Go
41 lines
859 B
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Test that pthread_cancel works as expected
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// (NPTL uses SIGRTMIN to implement thread cancellation)
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// See http://golang.org/issue/6997
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package cgotest
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/*
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#cgo CFLAGS: -pthread
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#cgo LDFLAGS: -pthread
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extern int StartThread();
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extern int CancelThread();
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*/
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import "C"
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import "testing"
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import "time"
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func test6997(t *testing.T) {
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r := C.StartThread()
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if r != 0 {
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t.Error("pthread_create failed")
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}
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c := make(chan C.int)
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go func() {
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time.Sleep(500 * time.Millisecond)
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c <- C.CancelThread()
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}()
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select {
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case r = <-c:
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if r == 0 {
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t.Error("pthread finished but wasn't cancelled??")
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}
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case <-time.After(5 * time.Second):
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t.Error("hung in pthread_cancel/pthread_join")
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}
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}
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