[jira] Updated: (HARMONY-2158) native resource cleanup

["Aleksey Ignatenko (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/HARMONY-2158?page=all ]

Aleksey Ignatenko updated HARMONY-2158:
---------------------------------------

    Attachment: cleanup_sources_1558_merged.patch

The patch contains the following issues solved:
1. Gloval jitted code pool is divided into separate pools attached to appropriate classloaders (jitted code, jb=ni and compileme stubs are allocated from pools of appropriated classloaders). 
2. introduced interface to be able to allocated GC related memory from classloader's pools.
3. Introduced cleanup in method_lookup_table (if class unloading is done then global method_lookup_table must be cleaned for corresponding items to prevent crashes).
4. Introduced unloading of native library used to load native jni method in case of appropriate classloader is unloaded.
4. Some code cleanup done.

> native resource cleanup
> -----------------------
>
>                 Key: HARMONY-2158
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2158
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>            Reporter: Aleksey Ignatenko
>         Attachments: cleanup_sources_1558_merged.patch
>
>
> Current implementation of DrlVM implies common code pool for all jitted code. There are disadvantages of that approach: common lock for all allocation operations, no possibility to free memory of jitted code in case when there is class unloading happent. 

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