using the sendfile system call on Darwin

[Michael Allman]

On Sun, 21 Feb 2010, Greg Lewis wrote:

> G'day Michael,
>
> On Fri, Feb 19, 2010 at 01:07:35PM -0800, Michael Allman wrote:
>> Ok, I have a patch.  How do I submit it?
>
> Sending it to the list for review (either directly or by putting up a URL
> people can see it at) is a good first step :).

Before I send it, I have run into a pertinent issue.

I am testing the jdk using the jdk/test/Makefile target jdk_nio2.  Using 
the virgin BSD port (i.e. without my patch), I get a whole boatload of 
failures that look like

FAILURE: FileChannel, offset 1, length 7
Transfers$Failure: Incorrect transfer length: 65533 (expected 7)
 	at Transfers.testTo(Transfers.java:436)
 	at Transfers.main(Transfers.java:527)
 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 	at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
 	at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 	at java.lang.reflect.Method.invoke(Method.java:613)
 	at 
com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
 	at java.lang.Thread.run(Thread.java:717)

Can someone else try running this test and report back their results?

I ran it on Mac OS X v. 10.6.2.

Cheers,

Michael