move the callbacks into the struct

remote.go

@@ -29,9 +29,17 @@ const (
 	AutotagAll                = C.GIT_REMOTE_DOWNLOAD_TAGS_ALL
 )
 
+type ProgressCb func([]byte) int
+type UpdateTipsCb func(string, *Oid, *Oid) int
+
 type Remote struct {
 	Name string
 	Url  string
+
+	// callbacks
+	Progress   ProgressCb
+	UpdateTips UpdateTipsCb
+
 	ptr  *C.git_remote
 }
 
@@ -90,26 +98,22 @@ func (r *Remote) Ls() ([]*RemoteHead, error) {
 	return data.slice, nil
 }
 
-func (r *Remote) SetCallbacks(callbacks *RemoteCallbacks) {
-	C._go_git_remote_set_callbacks(r.ptr, unsafe.Pointer(callbacks))
-}
-
 //export remoteProgress
 func remoteProgress(str *C.char, length C.int, data unsafe.Pointer) int {
-	callbacks := (*RemoteCallbacks)(data)
-	if callbacks.Progress != nil {
-		return callbacks.Progress(C.GoBytes(unsafe.Pointer(str), length))
+	remote := (*Remote)(data)
+	if remote.Progress != nil {
+		return remote.Progress(C.GoBytes(unsafe.Pointer(str), length))
 	}
 
 	return 0
 }
 
-//export updateTips
-func updateTips(str *C.char, a, b *C.git_oid, data unsafe.Pointer) int {
-	callbacks := (*RemoteCallbacks)(data)
-	goa, gob := newOidFromC(a), newOidFromC(b)
-	if callbacks.UpdateTips != nil {
-		return callbacks.UpdateTips(C.GoString(str), goa, gob)
+//export remoteUpdateTips
+func remoteUpdateTips(str *C.char, a, b *C.git_oid, data unsafe.Pointer) int {
+	remote := (*Remote)(data)
+	if remote.UpdateTips != nil {
+		goa, gob := newOidFromC(a), newOidFromC(b)
+		return remote.UpdateTips(C.GoString(str), goa, gob)
 	}
 
 	return 0
@@ -124,15 +128,6 @@ func (r *Remote) Download() (error) {
 	return nil
 }
 
-type ProgressCb func([]byte) int
-type UpdateTipsCb func(string, *Oid, *Oid) int
-
-//export RemoteCallbacks
-type RemoteCallbacks struct {
-	Progress   ProgressCb
-	UpdateTips UpdateTipsCb
-}
-
 type headlistData struct {
 	slice []*RemoteHead
 }
@@ -159,6 +154,9 @@ func newRemoteFromC(ptr *C.git_remote) *Remote {
 		Url:  C.GoString(C.git_remote_url(ptr)),
 	}
 
+	// allways set the callbacks, we'll decide whether to call
+	// them once we're back in go-land
+	C._go_git_remote_set_callbacks(remote.ptr, unsafe.Pointer(remote))
 	runtime.SetFinalizer(remote, (*Remote).Free)
 
 	return remote

remote_test.go

@@ -42,14 +42,11 @@ func TestRemoteProgress(t *testing.T) {
 	checkFatal(t, err)
 
 	called := false
-	cbs := RemoteCallbacks{
-	Progress: func(bytes []byte) int {
-			called = true
-			return 1
-		},
+	remote.Progress = func(bytes []byte) int {
+		called = true
+		return 1
 	}
 
-	remote.SetCallbacks(&cbs)
 	remote.Connect(RemoteDirectionFetch)
 	err = remote.Download()
 	if !called {

wrapper.c

@@ -31,29 +31,17 @@ int _go_git_remote_ls(git_remote *remote, void *payload)
 	return git_remote_ls(remote, (git_headlist_cb) remoteHeadlistCb, payload);
 }
 
-int _go_git_remote_progress(const char *str, int len, void *data)
-{
-	printf("calling remoteProgress\n");
-	return remoteProgress((char *) str, len, data);
-}
-
 int _go_git_remote_set_callbacks(git_remote *remote, void *payload)
 {
 	git_remote_callbacks cbs = GIT_REMOTE_CALLBACKS_INIT;
 
 	cbs.progress = remoteProgress;
-	cbs.update_tips = updateTips;
+	cbs.update_tips = remoteUpdateTips;
 	cbs.payload = payload;
 
 	git_remote_set_callbacks(remote, &cbs);
 }
 
-int _go_git_remote_update_tips(const char *refname, const git_oid *a, const git_oid *b, void *data)
-{
-	printf("calling updateTips\n");
-	return updateTips((char *) refname, (git_oid *) a, (git_oid *) b, data);
-}
-
 /* EOF */