From 2a01fbf4188f5027ae39bf81ce59c04c10c72f60 Mon Sep 17 00:00:00 2001
From: Søren Sandmann Pedersen <sandmann@daimi.au.dk>
Date: Sat, 25 Apr 2009 19:26:41 -0400
Subject: First step towards moving messages into dbus-int.c

---
 dbus-int.c       | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 dbus.c           | 11 ++---------
 libnul-private.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 110 insertions(+), 12 deletions(-)

diff --git a/dbus-int.c b/dbus-int.c
index d8f3bb1..251d91d 100644
--- a/dbus-int.c
+++ b/dbus-int.c
@@ -6,6 +6,7 @@
 #include <dbus/dbus.h>
 #include <string.h>
 #include "libnul-private.h"
+
 typedef struct object_info_t object_info_t;
 struct object_info_t
 {
@@ -24,6 +25,60 @@ struct connection_t
     char **	    names;
 };
 
+static void
+decode_arg (DBusMessageIter *iter,
+	    primitive_t     *primitive,
+	    value_t         *value)
+{
+    int dbus_type = dbus_message_iter_get_arg_type (iter);
+    
+    switch (dbus_type)
+    {
+    case DBUS_TYPE_UINT32:
+	*primitive = UINT32;
+	
+        dbus_message_iter_get_basic (iter, &value->u32);
+        break;
+
+    case DBUS_TYPE_INT32:
+	*primitive = INT32;
+
+	dbus_message_iter_get_basic (iter, &value->i32);
+	break;
+        
+    case DBUS_TYPE_STRING:
+	*primitive = STRING;
+	
+        dbus_message_iter_get_basic (iter, &value->s);
+	value->s = g_strdup (value->s);
+        break;
+    }
+}
+
+static message_t *
+decode_message (DBusMessage *dmsg, char **err)
+{
+    DBusMessageIter iter;
+    message_t *message;
+    
+    message = g_new0 (message_t, 1);
+    message->arguments = nul_array_new (typed_value_t);
+    
+    if (dbus_message_iter_init (dmsg, &iter))
+    {
+        do
+        {
+	    typed_value_t value;
+	
+	    decode_arg (&iter, &value.type, &value.value);
+
+	    message->arguments = nul_array_append (message->arguments, value);
+	} while (dbus_message_iter_next (&iter));
+    }
+    
+    return message;
+}
+
 static void
 process_watch (DBusWatch *watch, int flags)
 {
diff --git a/dbus.c b/dbus.c
index 6910120..3fd9652 100644
--- a/dbus.c
+++ b/dbus.c
@@ -70,20 +70,13 @@ struct nul_dbus_member_t
 struct nul_dbus_parameter_t
 {
     char *		name;
-    nul_dbus_type_t *		type;
+    nul_dbus_type_t *	type;
     gboolean		out;
 };
 
-typedef enum
-{
-    INT32,
-    UINT32,
-    STRING
-} Primitive;
-
 struct nul_dbus_type_t
 {
-    Primitive type;
+    primitive_t type;
 };
 
 typedef void (* nul_free_func_t) (nul_ptr_t p);
diff --git a/libnul-private.h b/libnul-private.h
index a055b03..7925d8c 100644
--- a/libnul-private.h
+++ b/libnul-private.h
@@ -1,11 +1,46 @@
 #include "libnul.h"
 
-typedef struct connection_t connection_t;
-typedef struct message_t    message_t;
+typedef struct connection_t  connection_t;
+typedef struct message_t     message_t;
+typedef struct typed_value_t typed_value_t;
+typedef union  value_t       value_t;
+
 typedef gboolean (* message_func_t) (connection_t   *connection,
 				     DBusMessage    *message,
 				     nul_ptr_t       data);
 
+typedef enum
+{
+    INT32,
+    UINT32,
+    STRING
+} primitive_t;
+
+union value_t
+{
+    int32_t i32;
+    uint32_t u32;
+    double d;
+    char *s;
+};
+
+struct typed_value_t
+{
+    primitive_t  type;
+
+    value_t value;
+};
+
+struct message_t
+{
+    char                *service;
+    char		*path;
+    char		*interface;
+    char		*member;
+    
+    typed_value_t	*arguments;
+};
+
 connection_t *connection_new_session       (void);
 connection_t *connection_new_system        (void);
 void          connection_register_object   (connection_t   *connection,
@@ -23,4 +58,19 @@ gboolean      connection_send_with_reply   (connection_t   *connection,
 					    message_func_t  func,
 					    gpointer        data);
 void          connection_release_name      (connection_t   *connection,
-					    const char *    name);
+					    const char     *name);
+
+message_t *message_new_error       (const message_t  *in_reply_to,
+				    const char      **message);
+message_t *message_new_return      (const message_t  *in_reply_to);
+message_t *message_new_method_call (const char       *service_name,
+				    const char       *object_name,
+				    const char       *interface_name,
+				    const char       *method_name);
+void       message_append_string   (message_t        *message,
+				    const char       *string);
+void       message_append_int32    (message_t        *message,
+				    int               value);
+void       message_append_uint32   (message_t        *message,
+				    uint32_t          value);
+void       message_free            (message_t        *mesage);
-- 
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