func CgoCallbackGC() {
const P = 100
done := make(chan bool)
// allocate a bunch of stack frames and spray them with pointers
for i := 0; i < P; i++ {
go func() {
grow()
done <- true
}()
}
for i := 0; i < P; i++ {
<-done
}
// now give these stack frames to cgo callbacks
for i := 0; i < P; i++ {
go func() {
C.foo()
done <- true
}()
}
for i := 0; i < P; i++ {
<-done
}
fmt.Printf("OK\n")
}
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
fmt.Println(C.GoString(C.foo()))
}
func main() {
// Don't report error for package "C". It's for Cgo.
println(C.bar)
println(C.foo())
}
func main() {
fmt.Println(C.GoString(C.foo()))
}
func main() {
fmt.Println(C.count)
C.foo()
}
func CallCgo(n int) {
for i := 0; i < n; i++ {
C.foo()
}
}
func main() {
fmt.Println("Go: main")
C.registerIt(C.foo())
}
func main() {
fmt.Println("From libfoo: ", C.foo())
}
func Bar() {
C.foo()
}