Is there maximum number of arguments

[Thiago Macieira]

On Segunda 25 Agosto 2008 14:42:22 Jukka Mähönen wrote:
> Hi,
>
> I am writing a program where I need to send as much arguments as
> possible in one D-Bus message. When the count of arguments exceeds 255
> my program crashes. It only says "Memory overflow". After that I have
> sent only 255 arguments in one message, but even now I get the same
> error sometimes when I send messages in a loop.

Yes, there is a maximum. The signature of a message is limited to 255 bytes. 
That means you can only have as many arguments as fit into 255 bytes.

That means 255 simple types (including variants), 126 two-character types 
(such as simple arrays), 85 structures of a single type (such as (i)), 51 
simple maps (such as a{sv}).

Note that this limit also applies to structures as well, so if you put a 
structure in a variant, its signature must still fit into 255 bytes.

http://dbus.freedesktop.org/doc/dbus-specification.html
-- 
  Thiago Macieira  -  thiago (AT) macieira.info - thiago (AT) kde.org
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