Distributed objects leak memory

When passing this C struct
NSString* nickname;
unsigned age;
} ConnectInfo;
to this method of distributed object
- (oneway void)connect:(in ConnectInfo*)ci
nickname = \[ci->nickname retain]; // or copy - doesn't matter
the NSString is reported leaked by `leaks` tool. There are as many strings leaked as many calls I did. Memory dump shows exactly this string object's contents. Allocation stack trace points inside NSInvocation/_NSWalkData, not into my code.
Distributed object is running in separate Cocoa thread in same process. Both threads has auto-release pool established, and there's no warnings in log regarding autoreleasing. SDK is 10.4u, OS is 10.5.4, my platform is PowerPC.
I tried all combinations of oneway, two-way, in, inout, bycopy, byref, retaining, copying, passing pointer, or reference (ConnectInfo&) to string - every time the string is leaked. If there are more strings in struct, they are also leaked. The only working method is to cast pointer to integer value, but this is a kind of hack.
DO runtime is obviously doing a deep copy of plain C struct, and somehow forgets to release Obj-C objects it copied. Is this a DO bug, or am I doing something wrong?

kasym wrote:
DO runtime is obviously doing a deep copy of plain C struct, and somehow forgets to release Obj-C objects it copied.
No, it isn't. It is doing a bitwise copy. It doesn't "forget" to release the Objective C object. That object is inside a C struct. Nothing happens automatically in C.
Is this a DO bug, or am I doing something wrong?
You are doing something wrong. When working in Cocoa, especially things like Distributed Objects, stick to Cocoa. Use an NSDictionary instead.

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using Object will lead to "memory leak", I am worried
about the size of object I use is too large and then
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>
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Message was edited by:
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Edited by: user9200447 on Feb 26, 2010 10:47 AM

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Hi there.
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Jorth, maybe we are not well explained,
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================================================================================================================
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
874 root 610M 421M sleep 59 0 0:14:51 0.1% java/160
818 webservd 413M 285M sleep 59 0 0:16:43 0.3% webservd/95
607 root 326M 45M sleep 59 0 0:07:01 0.1% webservd/58
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*16696 mailsrv 205M 36M sleep 59 0 0:00:04 0.0% imapd/5*
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*16682 mailsrv 195M 40M sleep 59 0 0:00:04 0.0% imapd/5*
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*16687 mailsrv 187M 40M sleep 59 0 0:00:05 0.0% imapd/5*
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================================================================================================================
When we run an aplication like OutLook to copy locally to the laptopn all the mail via IMAP, "ONE imapd process" eat more memory that need it and never released.
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================================================================================================================
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*16687 mailsrv 187M 40M sleep 59 0 0:00:05 0.0% imapd/5*
*902 icsuser 185M 24M sleep 59 0 0:00:05 0.0% cshttpd/2*
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78 mailsrv 2439M 2329M 80% 0:00:5 0.5%
78 mailsrv 2439M 2329M 10% 0:11:53 0.5%
14 icsuser 1064M 233M 2.8% 0:06:55 0.0%
136 root 965M 727M 8.9% 2:15:20 50%
1 webservd 264M 326M 4.0% 0:16:43 0.3%
Total: 237 processes, 1042 lwps, load averages: 1.91, 1.90, 1.89
===================================================================================================
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We will to test the 64Bit version in this moment and we will post the results.
Thank
Jaime

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Distributed objects leak memory

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