[patch #3159] Fixes for bugs in gnu.java.nio.channels.FileChannelImpl.read/write

[Stephen Crawley]

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[patch #3159] Full Item Snapshot:

URL: <http://savannah.gnu.org/patch/?func=detailitem&item_id=3159>
Project: classpath
Submitted by: Stephen Crawley
On: Wed 06/23/2004 at 15:27

Category:  None
Priority:  5 - Normal
Resolution:  None
Assigned to:  None
Originator Email:  
Status:  Open


Summary:  Fixes for bugs in gnu.java.nio.channels.FileChannelImpl.read/write

Original Submission:  The three argument read and write native methods may
throw IOException("Unexpected JNI error") when passed
a zero byte buffer (and length 0).  This is because the
behaviour of the JNI GetByteArrayElements call is 
unspecified for a zero length array, and some VMs treat
this as a JNI failure.

The patch also fixes a possible memory leak in 'read' 
and a couple of possible segfaults in 'write', all caused 
by incorrect error handling.

2004-06-21  Stephen Crawley  <address@hidden>
  * native/jni/java-nio/gnu_java_nio_channels_FileChannelImpl.c
  (Java_gnu_java_nio_channels_FileChannelImpl_read___3BII):
  handle zero length reads, and fix associated memory leak
  (Java_gnu_java_nio_channels_FileChannelImpl_write___3BII):
  handle zero length writes, and fix error handling bugs.

        




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CC Address                          | Comment
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File Attachments
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Date: Wed 06/23/2004 at 15:27  Name: diffs  Size: 1KB   By: crawley

http://savannah.gnu.org/patch/download.php?item_id=3159&amp;item_file_id=3392






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