| // 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. |
| |
| // +build !windows |
| |
| package cgotest |
| |
| /* |
| #include <dlfcn.h> |
| #cgo linux LDFLAGS: -ldl |
| |
| extern void call4029(void *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.dlopen(nil, C.RTLD_NOW) |
| if this_process == nil { |
| t.Error("dlopen:", C.GoString(C.dlerror())) |
| return |
| } |
| defer C.dlclose(this_process) |
| |
| symbol_address := C.dlsym(this_process, C.CString(symbol)) |
| if symbol_address == nil { |
| t.Error("dlsym:", C.GoString(C.dlerror())) |
| return |
| } |
| t.Log(symbol, symbol_address) |
| C.call4029(symbol_address) |
| } |