Pinning objects inside JNI
I am working on a project where I must have the guarantee that certain objects are pinned in memory, by the Hotspot Server VM (within the scope of a JNI method). I am retrieving objects addresses using something like this:
jobject obj = env->GetObjectField(slot, objectValueID); /* get object reference */
jint address = env->GetIntField(slot, objectValueID); /* get the object's address */
Does Hotspot VM move objects that are referenced from JNI code? If so, is there any way to prevent it from doing so?
I realize this is not a safe approach for accessing objects, and it may not work for all VMs, but I only need it to work for Hotspot, within a JNI method.
Thanks a lot,
Michael B.
Hi, Girish,
Pin , anywhere in Oracle terminology means "access" . That's not quite right . . .
The term "pinning" is a generic computer science term for exclusive relocation to RAM, and it's used in the Oracle docs quite a bit!
http://www.oracle.com/pls/db111/ranked?word=pin&remark=federated_search
The term "pinning" is like "caching", but pinning is guaranteed to stay in RAM, a way of "marking" a RAM object and non-eligible for swapping back to disk:
http://www.dba-oracle.com/art_proc.htm
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> From: Jeanne Hesler <[email protected]>
> To: [email protected] <[email protected]>
> Date: Thursday, July 30, 1998 11:12 AM
> Subject: RE: Interfaces in Forte - has anyone used them?
>>
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Edited by: 858176 on May 11, 2011 6:53 PM FormattingGreat, this worked so far.
It is curious that you wrote 'profesores' but that is the actual name for the variable. I translated everything to english in order to post it here.
So, the statement is:
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Overwrite CRM_Order Desc. with Para. from FBDSWP_ALERTS_SLF_MSG_SUBMIT
Hello Colleagues, i have setup the ccms monitroing with an autoreaction Method in Solution Manger. Method: Serv_Desk_Mess_on_Alert with FB DSWP_ALERTS_SLF_MSG_SUBMIT as Paramter i have used Component, Destination, Keyuser everythings works fine for c
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PRICING PROCEDURE MM With detailed illustration
i need detailed illustrations of pricing procedures . as simple as possible . waiting for your reply REGARDS Jagat
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Posting of Travel Expense with Payment via HR Payroll
Hi Assuming expense type code 1111 is assigned to Wage type 1111. At travel mgmt, user declared input tax P3 is applicable for the expense type and enter amount 100. Thus the input tax amount is $3. Can I check how the proces RPCIPE00 will pick up th
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Help: How to call a user defined function in a data block query?
I created a string aggregation function in the program unit, see reference: http://www.oracle-base.com/articles/10g/StringAggregationTechniques.php I now like to call the function in my data block query. I got the error: ORA-00904: 'concatenate_list'
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IMac in Win 7 hang over a year now with no solution
I was convince by a friend and bought an iMac 27# in the PC show in March 2010 and along with it.. the additoinal 2Gb RAM and then follow by the Apple Care protection. It was the biggest IT purchase mistake ever! As I couldn't manage the Apple mouse