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go/misc/cgo/testtls/tls.go
Russ Cox abd556ab70 misc/cgo/testtls: make test less flaky
Now it should always fail on ARM.
(The fix is on its way too.)

R=iant, r, dave
CC=golang-codereviews
https://golang.org/cl/55140043
2014-01-21 19:44:51 -05:00

31 lines
628 B
Go

// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cgotlstest
// #include <pthread.h>
// extern void setTLS(int);
// extern int getTLS();
import "C"
import (
"runtime"
"testing"
)
func testTLS(t *testing.T) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
if val := C.getTLS(); val != 0 {
t.Fatalf("at start, C.getTLS() = %#x, want 0", val)
}
const keyVal = 0x1234
C.setTLS(keyVal)
if val := C.getTLS(); val != keyVal {
t.Fatalf("at end, C.getTLS() = %#x, want %#x", val, keyVal)
}
}