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1580 | C<IO::AIO::MAP_NORESERVE>, C<IO::AIO::MAP_POPULATE> or |
1580 | C<IO::AIO::MAP_NORESERVE>, C<IO::AIO::MAP_POPULATE> or |
1581 | C<IO::AIO::MAP_NONBLOCK> |
1581 | C<IO::AIO::MAP_NONBLOCK> |
1582 | |
1582 | |
1583 | If C<$fh> is C<undef>, then a file descriptor of C<-1> is passed. |
1583 | If C<$fh> is C<undef>, then a file descriptor of C<-1> is passed. |
1584 | |
1584 | |
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1585 | C<$offset> is the offset from the start of the file - it generally must be |
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1586 | a multiple of C<IO::AIO::PAGESIZE> and defaults to C<0>. |
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1587 | |
1585 | Example: |
1588 | Example: |
1586 | |
1589 | |
1587 | use Digest::MD5; |
1590 | use Digest::MD5; |
1588 | use IO::AIO; |
1591 | use IO::AIO; |
1589 | |
1592 | |