Retro68/gcc/libgo/misc/cgo/test/issue3775.go
2018-12-28 16:30:48 +01:00

40 lines
694 B
Go

// +build !android
package cgotest
/*
void lockOSThreadCallback(void);
inline static void lockOSThreadC(void)
{
lockOSThreadCallback();
}
int usleep(unsigned usec);
*/
import "C"
import (
"runtime"
"testing"
)
func init() {
// Same as test3775 but run during init so that
// there are two levels of internal runtime lock
// (1 for init, 1 for cgo).
// This would have been broken by CL 11663043.
C.lockOSThreadC()
}
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()
}