[issue10882] Add os.sendfile()

[Ross Lagerwall]

Ross Lagerwall <rosslagerwall at gmail.com> added the comment:

With no changes, I get:
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FAIL: test_trailers (test.test_os.TestSendfile)
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Traceback (most recent call last):
  File "/usr/home/ross/py3k_sftest/Lib/test/test_os.py", line 1531, in test_trailers
    self.assertEqual(data, "abcde12345")
AssertionError: b'abcde12345' != 'abcde12345'

After changing, the tests work perfectly. Perhaps its the FreeBSD version? Here's the output from uname:
FreeBSD fbds 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:36:49 UTC 2010     root at mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64

Maybe its a bug on that platform, you could try building a sendfile program in C with trailer data. Or try a simple test in the interpreter like the one in msg127326 but with added trailer data.

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<http://bugs.python.org/issue10882>
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