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// Copyright 2012 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.
//go:build !windows && !static && !(darwin && internal)
// Excluded in darwin internal linking PIE (which is the default) mode,
// as dynamic export is not supported.
package cgotest
/*
#include <stdint.h>
#include <dlfcn.h>
#cgo linux LDFLAGS: -ldl
extern uintptr_t dlopen4029(char*, int);
extern uintptr_t dlsym4029(uintptr_t, char*);
extern int dlclose4029(uintptr_t);
extern void call4029(uintptr_t arg);
*/
import "C"
import (
"testing"
)
var callbacks int
//export IMPIsOpaque
func IMPIsOpaque() {
callbacks++
}
//export IMPInitWithFrame
func IMPInitWithFrame() {
callbacks++
}
//export IMPDrawRect
func IMPDrawRect() {
callbacks++
}
//export IMPWindowResize
func IMPWindowResize() {
callbacks++
}
func test4029(t *testing.T) {
loadThySelf(t, "IMPWindowResize")
loadThySelf(t, "IMPDrawRect")
loadThySelf(t, "IMPInitWithFrame")
loadThySelf(t, "IMPIsOpaque")
if callbacks != 4 {
t.Errorf("got %d callbacks, expected 4", callbacks)
}
}
func loadThySelf(t *testing.T, symbol string) {
this_process := C.dlopen4029(nil, C.RTLD_NOW)
if this_process == 0 {
t.Error("dlopen:", C.GoString(C.dlerror()))
return
}
defer C.dlclose4029(this_process)
symbol_address := C.dlsym4029(this_process, C.CString(symbol))
if symbol_address == 0 {
t.Error("dlsym:", C.GoString(C.dlerror()))
return
}
t.Log(symbol, symbol_address)
C.call4029(symbol_address)
}