[ViewVC] Diff of: cvs/IO-AIO/AIO.pm

Comparing IO-AIO/AIO.pm (file contents):
Revision 1.228 by root, Sun Jun 17 17:07:25 2012 UTC vs.
Revision 1.229 by root, Wed Jul 25 16:32:30 2012 UTC

    aio_statvfs $fh_or_path, $callback->($statvfs)
    aio_utime $fh_or_path, $atime, $mtime, $callback->($status)
    aio_chown $fh_or_path, $uid, $gid, $callback->($status)
    aio_chmod $fh_or_path, $mode, $callback->($status)
    aio_truncate $fh_or_path, $offset, $callback->($status)
+   aio_allocate $fh, $mode, $offset, $len, $callback->($status)
    aio_unlink $pathname, $callback->($status)
    aio_mknod $pathname, $mode, $dev, $callback->($status)
    aio_link $srcpath, $dstpath, $callback->($status)
    aio_symlink $srcpath, $dstpath, $callback->($status)
    aio_readlink $pathname, $callback->($link)
 =item aio_truncate $fh_or_path, $offset, $callback->($status)
 Works like truncate(2) or ftruncate(2).
+=item aio_allocate $fh, $mode, $offset, $len, $callback->($status)
+Allocates or freed disk space according to the C<$mode> argument. See the
+linux C<fallocate> docuemntation for details.
+C<$mode> can currently be C<0> or C<IO::AIO::FALLOC_FL_KEEP_SIZE>
+to allocate space, or C<IO::AIO::FALLOC_FL_PUNCH_HOLE |
+IO::AIO::FALLOC_FL_KEEP_SIZE>, to deallocate a file range.
+The file system block size used by C<fallocate> is presumably the
+C<f_bsize> returned by C<statvfs>.
+If C<fallocate> isn't available or cannot be emulated (currently no
+emulation will be attempted), passes C<-1> and sets C<$!> to C<ENOSYS>.
 =item aio_chmod $fh_or_path, $mode, $callback->($status)
 Works like perl's C<chmod> function.

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