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Old 06-18-2010, 10:02 AM   #1
vikesh.u
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Registered: Mar 2009
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clone() system call, Share Heap.


Hi all,
In my program I have a requirement to
-->1)create a child which should have different PCB's so that I want to handle same signal differently in Main Thread and Child Thread.
-->2)I want to Share Global data(Heap) between Main Thread and Child.

To achieve this I tried to Use Clone() system call with CLONE_FS and CLONE_FILES and requirement 1) was achieved by pthread_sigmask and sigaction().
But I Could not fulfill requirement 2).

Is my approach correct? If not give please give me a suggestion.

Is this possible WITHOUT Inter Process Communication?
Is it possible with clone() system call?
 
Old 06-18-2010, 11:06 AM   #2
paulsm4
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Registered: Mar 2004
Distribution: SusE 8.2
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Hi -

If you want to share memory between processes, use one of the shared memory APIs.

If you want to share *all* data in the entire program, use threads.

Perhaps your best bet might be:
a) use threads
b) find an alternative to using signals
 
Old 06-20-2010, 12:51 AM   #3
vikesh.u
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Registered: Mar 2009
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Thank you for your reply.
 
  


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