[ 
https://issues.apache.org/jira/browse/HDFS-573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12755610#action_12755610
 ] 

Faisal Khan commented on HDFS-573:
----------------------------------

I ran unit tests on Ziliang's patch for libhdfs on Linux and here is the output 
http://pages.cs.wisc.edu/~faisal/libhdfs_testresult.txt . Tests look ok. 


> Porting libhdfs to Windows
> --------------------------
>
>                 Key: HDFS-573
>                 URL: https://issues.apache.org/jira/browse/HDFS-573
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>         Environment: Windows, Visual Studio 2008
>            Reporter: Ziliang Guo
>   Original Estimate: 336h
>  Remaining Estimate: 336h
>
> The current C code in libhdfs is written using C99 conventions and also uses 
> a few POSIX specific functions such as hcreate, hsearch, and pthread mutex 
> locks.  To compile it using Visual Studio would require a conversion of the 
> code in hdfsJniHelper.c and hdfs.c to C89 and replacement/reimplementation of 
> the POSIX functions.  The code also uses the stdint.h header, which is not 
> part of the original C89, but there exists what appears to be a BSD licensed 
> reimplementation written to be compatible with MSVC floating around.  I have 
> already done the other necessary conversions, as well as created a simplistic 
> hash bucket for use with hcreate and hsearch and successfully built a DLL of 
> libhdfs.  Further testing is needed to see if it is usable by other programs 
> to actually access hdfs, which will likely happen in the next few weeks as 
> the Condor Project continues with its file transfer work.
> In the process, I've removed a few what I believe are extraneous consts and 
> also fixed an incorrect array initialization where someone was attempting to 
> initialize with something like this: JavaVMOption options[noArgs]; where 
> noArgs was being incremented in the code above.  This was in the 
> hdfsJniHelper.c file, in the getJNIEnv function.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to