summaryrefslogtreecommitdiffstats
path: root/doc/TODO
blob: 7108734c54bf7531e23250384719bfc1d3d15ceb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
Important for 1.0
===

 - add a new return code from dbus_connection_dispatch() called 
   IN_PROGRESS or RECURSED or something, indicating that DATA_REMAINS
   but another dispatch is in progress, so we can't dispatch at 
   this time. Fixes the recursive deadlock. See the @todo for more
   and this thread: http://lists.freedesktop.org/archives/dbus/2006-February/004128.html


 - Remove all deprecated functions

 - Audit @todo and FIXME for security issues

 - the "break loader" and valid/invalid message tests are all disabled;
   they need to be fixed and re-enabled with the new message args stuff.
   I think I want to drop the .message files thing and just have code
   that generates messages, more like the tests for
   dbus-marshal-recursive.c (this is mostly done now, just needs some
   cleanup)

 - just before 1.0, try a HAVE_INT64=0 build and be sure it runs

 - dbus-pending-call.c has some API and thread safety issues to review

 - Add test harness for selinux allow/deny cf. this message
   http://lists.freedesktop.org/archives/dbus/2005-April/002506.html

 - publish the introspection dtd at its URL
 
 - RequestName flags seem a bit strange; see the docs for dbus_bus_request_name() 
   and think about use cases in better detail. 
   Proposal on list:
   http://lists.freedesktop.org/archives/dbus/2005-August/003207.html

   Kind of a major API change, but seems high-value.

Important for 1.0 GLib Bindings
===

 - Test point-to-point mode

 - Add support for getting sender

 - format_version in the object info doesn't look like it's handled correctly. The creator
   of the object info should specify some fixed number per struct version; the library
   should handle only specific numbers it knows about. There's no assumption that all 
   numbers >= the given one are compatible. The idea is that new versions of the lib
   can offer totally different object info structs, but old versions
   keep working.

Important for 1.0 Python bindings
===

 - Hammer down API

 - Fix removing of signals from the match tree

 - Fix refcounting and userdata lifecycles

 - Write a generic mainloop

Might as Well for 1.0
===

 - protocol version in each message is pretty silly

Can Be Post 1.0
===

 - if the GUID is obtained only during authentication, not in the address, 
   we could still share the connection

 - Allow a dbus_g_proxy_to_string()/g_object_to_string() that
   would convert the proxy to an "IOR" and dbus_g_proxy_from_string()
   that would decode; using these, dbus-glib users could avoid
   DBusConnection entirely. Of course the same applies to other kinds
   of binding. This would use dbus_connection_open()'s connection-sharing
   feature to avoid massive proliferation of connections.

 - DBusWatchList/TimeoutList duplicate a lot of code, as do
   protected_change_watch/protected_change_timeout in dbus-connection.c
   and dbus-server.c. This could all be mopped up, cut-and-paste 
   fixed, code size reduced.

 - change .service files to allow Names=list in addition to Name=string

 - The message bus internal code still says "service" for 
   "name", "base service" for "unique name", "activate" for 
   "start"; would be nice to clean up.

 - Property list feature on message bus (list of properties associated 
   with a connection). May also include message matching rules 
   that involve the properties of the source or destination
   connection.

 - Disconnecting the remote end on invalid UTF-8 is probably not a good 
   idea. The definition of "valid" is slightly fuzzy. I think it might 
   be better to just silently "fix" the UTF-8, or perhaps return an error.

 - build and install the Doxygen manual in Makefile when --enable-docs

 - if you send the same message to multiple connections, the serial number 
   will only be right for one of them. Probably need to just write() the serial 
   number, rather than putting it in the DBusMessage, or something.

 - perhaps the bus driver should have properties that reflect attributes
   of the session, such as hostname, architecture, operating system, 
   etc. Could be useful for code that wants to special-case behavior 
   for a particular host or class of hosts, for example.

 - currently the security policy stuff for messages to/from 
   the bus driver is kind of strange; basically it's hardcoded that 
   you can always talk to the driver, but the default config file 
   has rules for it anyway, or something. it's conceptually 
   screwy at the moment.

 - when making a method call, if the call serial were globally unique,
   we could forward the call serial along with any method calls made
   as a result of the first method call, and allow reentrancy that was
   strictly part of the call stack of said method call. But I don't
   really see how to do this without making the user pass around the
   call serial to all method calls all the time, or disallowing 
   async calls.

   If done post 1.0 will probably be an optional/ugly-API type 
   of thing.

 - I don't want to introduce DBusObject, but refcounting and object
   data could still be factored out into an internal "base class" 
   perhaps.

 - Keep convenience wrappers in sync with bus methods

 - document the auth protocol as a set of states and transitions, and
   then reimplement it in those terms

 - recursive dispatch, see dbus_connection_dispatch()

 - do we need per-display activation; if so I'd like to do this by setting a
   "display ID" property on screen 0, with a GUID, and keying activation by 
   said GUID. Otherwise you get all kinds of unrobust
   string/hostname-based mess. per-screen is then done by appending screen number
   to the display. If displays have a deterministic ID like this, you can 
   do per-display by simply including GUID in the service name.

 - optimization and profiling!

 - Match rules aren't in the spec (probably a lot of methods on the bus
   are not)

Should Be Post 1.0
===

 - look into supporting the concept of a "connection" generically