Re: DO question.
Re: DO question.
- Subject: Re: DO question.
- From: warren marco <email@hidden>
- Date: Mon, 1 Apr 2002 14:57:53 -0700
On Monday, April 1, 2002, at 02:43 PM, Jonathan Wight wrote:
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On 04/01/2002 15:05, "Ondra Cada" <email@hidden> wrote:
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> On Monday, April 1, 2002, at 09:36 , warren marco wrote:
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>> I guess I was wrong in assuming byref by default.It must be bycopy.
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> IIRC, it *is* byref, but property list classes were sent bycopy for
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> higher
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> effectivity.
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> I can't find the appropriate documentation excerpt anymore though?!?
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Well that may explain the problem I'm seeing... My classes are laid out
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kinda like this:
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@interface CAttributes {
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NSMutableDictionary *mContainer;
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}
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@end
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@interface CDaemon {
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CAttributes *mAttributes;
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}
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- (CAttributes *) getAttributes;
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The CDaemon is being shared and the client is calling getAttributes and
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performing get/set operations upon the object. If I dump the attributes
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out
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on the client I see the changes I made but when I dump them out on the
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daemon I dont see them at all.
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So how do I fix this? I've changed the getAttributes to be byref and
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this
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didn't seem to do diddly.
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Oh no..... well.. how is your server connection set up? proper send and
receive ports? or just a receive?( is that possible?)
Also..... try implementing a protocol. This could be your problem. On
the client side it doesn't know that its sending a byref return SEL.
Try this... cross your fingers.... create a file ServerProto.h
#import "CAttributes.h"
@protocol ServerProto{
}
- (byref CAttributes *) getAttributes;
@end
Now in your server def...
#import "ServerProto.h"
@interface CDaemon <ServerProto> {
CAttributes *mAttributes;
}
@end
And then in the implementation....
- (byref CAttributes *) getAttributes{ return mAttributes;};
Then include ServerProto protocol in the client code code....
Then do something like this:
#import "ServerProto.h"
theServer =[connection rootProxy];
[theServer retain];
if(theServer == nil) NSLog(@"No server object to communicate with");
[theServer setProtocolForProxy:@protocol(ServerProto)];//<----- Make
sure this is called
This way the client knows it's byref. I may be pulling at strings but
try it. You should be implementing a protocol anyways to save your butt
from sending bad messages.
Hope this works!!!!!!!!! good luck
cheers,
warren marco
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