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go/misc/cgo/test/issue3775.go
Russ Cox b0a29f393b runtime: cgo-related fixes
* Separate internal and external LockOSThread, for cgo safety.
* Show goroutine that made faulting cgo call.
* Never start a panic due to a signal caused by a cgo call.

Fixes #3774.
Fixes #3775.
Fixes #3797.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7228081
2013-02-01 08:34:41 -08:00

30 lines
462 B
Go

package cgotest
/*
void lockOSThreadCallback(void);
inline static void lockOSThreadC(void)
{
lockOSThreadCallback();
}
int usleep(unsigned usec);
*/
import "C"
import (
"runtime"
"testing"
)
func test3775(t *testing.T) {
// Used to panic because of the UnlockOSThread below.
C.lockOSThreadC()
}
//export lockOSThreadCallback
func lockOSThreadCallback() {
runtime.LockOSThread()
runtime.UnlockOSThread()
go C.usleep(10000)
runtime.Gosched()
}