delete some more noise, put args in consistent order (a big bug trap sadly),
[platform/upstream/dbus.git] / dbus / dbus-marshal-recursive.h
index f838447..064bf15 100644 (file)
@@ -25,7 +25,8 @@
 #define DBUS_MARSHAL_RECURSIVE_H
 
 #include <config.h>
-#include <dbus/dbus-marshal-basic.h> /* this can become protocol.h when we merge */
+#include <dbus/dbus-protocol.h>
+#include <dbus/dbus-marshal-basic.h> /* this can vanish when we merge */
 
 #ifndef PACKAGE
 #error "config.h not included here"
  *  - delete an array element and re-align the remainder of the array
  *    (not necessary yet to re-align remainder of entire string,
  *     though that's probably just as hard/easy)
+ *    (really this one is to set a complex-type array element to
+ *    a new value, but for dbus-message.c delete-and-reappend would
+ *    be good enough)
  *  - set string, int, etc. values at a memoized position
  *    (implement generic set of any value? changes only
  *     value_str not type_str)
  *  - implement has_next()
  *  - the all-in-one-block array accessors
  *  - validation
+ *
+ * - remember to try a HAVE_INT64=0 build at the end
  */
 
+typedef struct DBusTypeMark        DBusTypeMark;
 typedef struct DBusTypeReader      DBusTypeReader;
 typedef struct DBusTypeWriter      DBusTypeWriter;
 typedef struct DBusTypeReaderClass DBusTypeReaderClass;
 
+/* The mark is a way to compress a TypeReader; it isn't all that
+ * successful though. The idea was to use this for caching header
+ * fields in dbus-message.c. However now I'm thinking why not cache
+ * the actual values (e.g. char*) and if the field needs to be set or
+ * deleted, just linear search for it. Those operations are uncommon,
+ * and getting the values should be fast and not involve all this type
+ * reader nonsense.
+ */
+struct DBusTypeMark
+{
+  dbus_uint32_t type_pos_in_value_str : 1;
+  dbus_uint32_t container_type : 3;
+  dbus_uint32_t array_len_offset : 3; /* bytes back from start_pos that len ends */
+  dbus_uint32_t type_pos : DBUS_MAXIMUM_MESSAGE_LENGTH_BITS;
+  dbus_uint32_t value_pos : DBUS_MAXIMUM_MESSAGE_LENGTH_BITS;
+  dbus_uint32_t array_start_pos : DBUS_MAXIMUM_MESSAGE_LENGTH_BITS;
+};
+
 struct DBusTypeReader
 {
   dbus_uint32_t byte_order : 8;
@@ -55,6 +80,7 @@ struct DBusTypeReader
   dbus_uint32_t finished : 1;   /* marks we're at end iterator for cases
                                  * where we don't have another way to tell
                                  */
+  dbus_uint32_t array_len_offset : 3; /* bytes back from start_pos that len ends */
   const DBusString *type_str;
   int type_pos;
   const DBusString *value_str;
@@ -65,8 +91,6 @@ struct DBusTypeReader
   {
     struct {
       int start_pos;
-      dbus_uint32_t len;
-      int element_type;
     } array;
   } u;
 };
@@ -93,51 +117,65 @@ struct DBusTypeWriter
   } u;
 };
 
-void        _dbus_type_reader_init                (DBusTypeReader    *reader,
-                                                   int                byte_order,
-                                                   const DBusString  *type_str,
-                                                   int                type_pos,
-                                                   const DBusString  *value_str,
-                                                   int                value_pos);
-void        _dbus_type_reader_init_types_only     (DBusTypeReader    *reader,
-                                                   const DBusString  *type_str,
-                                                   int                type_pos);
-int         _dbus_type_reader_get_current_type    (DBusTypeReader    *reader);
-dbus_bool_t _dbus_type_reader_array_is_empty      (DBusTypeReader    *reader);
-void        _dbus_type_reader_read_basic          (DBusTypeReader    *reader,
-                                                   void              *value);
-dbus_bool_t _dbus_type_reader_read_array_of_basic (DBusTypeReader    *reader,
-                                                   int                type,
-                                                   void             **array,
-                                                   int               *array_len);
-void        _dbus_type_reader_recurse             (DBusTypeReader    *reader,
-                                                   DBusTypeReader    *subreader);
-dbus_bool_t _dbus_type_reader_next                (DBusTypeReader    *reader);
-
-void        _dbus_type_writer_init            (DBusTypeWriter *writer,
-                                               int             byte_order,
-                                               DBusString     *type_str,
-                                               int             type_pos,
-                                               DBusString     *value_str,
-                                               int             value_pos);
-dbus_bool_t _dbus_type_writer_write_basic     (DBusTypeWriter *writer,
-                                               int             type,
-                                               const void     *value);
-dbus_bool_t _dbus_type_writer_write_array     (DBusTypeWriter *writer,
-                                               int             type,
-                                               const void     *array,
-                                               int             array_len);
-dbus_bool_t _dbus_type_writer_recurse_struct  (DBusTypeWriter *writer,
-                                               DBusTypeWriter *sub);
-dbus_bool_t _dbus_type_writer_recurse_array   (DBusTypeWriter *writer,
-                                               const char     *element_type,
-                                               DBusTypeWriter *sub);
-dbus_bool_t _dbus_type_writer_recurse_variant (DBusTypeWriter *writer,
-                                               const char     *contained_type,
-                                               DBusTypeWriter *sub);
-dbus_bool_t _dbus_type_writer_unrecurse       (DBusTypeWriter *writer,
-                                               DBusTypeWriter *sub);
-
-
+void        _dbus_type_reader_init                      (DBusTypeReader        *reader,
+                                                         int                    byte_order,
+                                                         const DBusString      *type_str,
+                                                         int                    type_pos,
+                                                         const DBusString      *value_str,
+                                                         int                    value_pos);
+void        _dbus_type_reader_init_from_mark            (DBusTypeReader        *reader,
+                                                         int                    byte_order,
+                                                         const DBusString      *type_str,
+                                                         const DBusString      *value_str,
+                                                         const DBusTypeMark    *mark);
+void        _dbus_type_reader_init_types_only           (DBusTypeReader        *reader,
+                                                         const DBusString      *type_str,
+                                                         int                    type_pos);
+void        _dbus_type_reader_init_types_only_from_mark (DBusTypeReader        *reader,
+                                                         const DBusString      *type_str,
+                                                         const DBusTypeMark    *mark);
+void        _dbus_type_reader_save_mark                 (const DBusTypeReader  *reader,
+                                                         DBusTypeMark          *mark);
+int         _dbus_type_reader_get_current_type          (const DBusTypeReader  *reader);
+dbus_bool_t _dbus_type_reader_array_is_empty            (const DBusTypeReader  *reader);
+void        _dbus_type_reader_read_basic                (const DBusTypeReader  *reader,
+                                                         void                  *value);
+dbus_bool_t _dbus_type_reader_read_array_of_basic       (const DBusTypeReader  *reader,
+                                                         int                    type,
+                                                         void                 **array,
+                                                         int                   *array_len);
+void        _dbus_type_reader_recurse                   (DBusTypeReader        *reader,
+                                                         DBusTypeReader        *subreader);
+dbus_bool_t _dbus_type_reader_next                      (DBusTypeReader        *reader);
+dbus_bool_t _dbus_type_reader_has_next                  (const DBusTypeReader  *reader);
+void        _dbus_type_reader_get_signature             (const DBusTypeReader  *reader,
+                                                         const DBusString     **str_p,
+                                                         int                   *start_p,
+                                                         int                   *len_p);
+dbus_bool_t _dbus_type_reader_set_basic                 (DBusTypeReader        *reader,
+                                                         const void            *value);
+
+void        _dbus_type_writer_init         (DBusTypeWriter   *writer,
+                                            int               byte_order,
+                                            DBusString       *type_str,
+                                            int               type_pos,
+                                            DBusString       *value_str,
+                                            int               value_pos);
+dbus_bool_t _dbus_type_writer_write_basic  (DBusTypeWriter   *writer,
+                                            int               type,
+                                            const void       *value);
+dbus_bool_t _dbus_type_writer_write_array  (DBusTypeWriter   *writer,
+                                            int               type,
+                                            const void       *array,
+                                            int               array_len);
+dbus_bool_t _dbus_type_writer_recurse      (DBusTypeWriter   *writer,
+                                            int               container_type,
+                                            const DBusString *contained_type,
+                                            int               contained_type_start,
+                                            DBusTypeWriter   *sub);
+dbus_bool_t _dbus_type_writer_unrecurse    (DBusTypeWriter   *writer,
+                                            DBusTypeWriter   *sub);
+dbus_bool_t _dbus_type_writer_write_reader (DBusTypeWriter   *writer,
+                                            DBusTypeReader   *reader);
 
 #endif /* DBUS_MARSHAL_RECURSIVE_H */