Re: [DOTNET-ROTOR] the right way of using go_through_object

[Vladimir Fedorov]

The way go_through_object works is that is depends on the "exp" you pass
in. I'll assume that you simply want to collect all objects starting at
the root. I think your termination condition fails for cycles of
objects. Consider A -> B -> A reference chain - A will consider B, which
will consider A, which will consider B. The work around could be to
ignore objects that are already marked.

Vladimir

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-----Original Message-----
From: Discussion of the Rotor Shared Source CLI implementation
[mailto:[EMAIL PROTECTED] On Behalf Of Archana
Sent: Wednesday, July 23, 2003 10:44 PM
To: [EMAIL PROTECTED]
Subject: [DOTNET-ROTOR] the right way of using go_through_object

Hi,
 When i tried to insert code to do scavenging using the
go_through_object
macro, i am running into an infinite loop, can you please point out
where i am going wrong,
[ for the time being i am looking at only the minor collection]

To avoid looping endlessly when i removed the lines 17-23 i get a
corrupted object ref which i presume is due to some object not being
copied.

1.for each root {
2. if(root!=NULL and root contains pointers) {
3.  go_through_object (method_table (root), root, size(root), xx,
4.                              {
5.                               relocateChild(xx);
6.                              }
7.  );
8. }
9.}
10.relocateChild(obj) {
11. if(generation(*obj)==0) {//consider only young objects
12.  if(*obj is valid) {
13.   if(*obj.relocated address == NULL) {
14.    copy_object_simple(obj)
15.   }
17.   if(*obj && contain_pointers(*obj)) {
18.     go_through_object(method_table(*obj),*obj,size(*obj),xx,
19.     {
20.        relocateChild(xx);
21.     }
22.     );
23.   }
24.  }
25. }
26.} //end relocateChild

Thanks and Regards
archana