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68 | =head2 EXAMPLE |
68 | =head2 EXAMPLE |
69 | |
69 | |
70 | This is a simple example that uses the EV module and loads |
70 | This is a simple example that uses the EV module and loads |
71 | F</etc/passwd> asynchronously: |
71 | F</etc/passwd> asynchronously: |
72 | |
72 | |
73 | use Fcntl; |
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74 | use EV; |
73 | use EV; |
75 | use IO::AIO; |
74 | use IO::AIO; |
76 | |
75 | |
77 | # register the IO::AIO callback with EV |
76 | # register the IO::AIO callback with EV |
78 | my $aio_w = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb; |
77 | my $aio_w = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb; |
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168 | use common::sense; |
167 | use common::sense; |
169 | |
168 | |
170 | use base 'Exporter'; |
169 | use base 'Exporter'; |
171 | |
170 | |
172 | BEGIN { |
171 | BEGIN { |
173 | our $VERSION = '4.18'; |
172 | our $VERSION = 4.2; |
174 | |
173 | |
175 | our @AIO_REQ = qw(aio_sendfile aio_seek aio_read aio_write aio_open aio_close |
174 | our @AIO_REQ = qw(aio_sendfile aio_seek aio_read aio_write aio_open aio_close |
176 | aio_stat aio_lstat aio_unlink aio_rmdir aio_readdir aio_readdirx |
175 | aio_stat aio_lstat aio_unlink aio_rmdir aio_readdir aio_readdirx |
177 | aio_scandir aio_symlink aio_readlink aio_realpath aio_sync |
176 | aio_scandir aio_symlink aio_readlink aio_realpath aio_sync |
178 | aio_fsync aio_syncfs aio_fdatasync aio_sync_file_range aio_allocate |
177 | aio_fsync aio_syncfs aio_fdatasync aio_sync_file_range aio_allocate |
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603 | namemax => 255, |
602 | namemax => 255, |
604 | frsize => 1024, |
603 | frsize => 1024, |
605 | fsid => 1810 |
604 | fsid => 1810 |
606 | } |
605 | } |
607 | |
606 | |
608 | Here is a (likely partial) list of fsid values used by Linux - it is safe |
607 | Here is a (likely partial - send me updates!) list of fsid values used by |
609 | to hardcode these when the $^O is C<linux>: |
608 | Linux - it is safe to hardcode these when C<$^O> is C<linux>: |
610 | |
609 | |
611 | 0x0000adf5 adfs |
610 | 0x0000adf5 adfs |
612 | 0x0000adff affs |
611 | 0x0000adff affs |
613 | 0x5346414f afs |
612 | 0x5346414f afs |
614 | 0x09041934 anon-inode filesystem |
613 | 0x09041934 anon-inode filesystem |
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1556 | passing C<undef> as working directory component of a pathname fails the |
1555 | passing C<undef> as working directory component of a pathname fails the |
1557 | request with C<ENOENT>, there is often no need for error checking in the |
1556 | request with C<ENOENT>, there is often no need for error checking in the |
1558 | C<aio_wd> callback, as future requests using the value will fail in the |
1557 | C<aio_wd> callback, as future requests using the value will fail in the |
1559 | expected way. |
1558 | expected way. |
1560 | |
1559 | |
1561 | If this call isn't available because your OS lacks it or it couldn't be |
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1562 | detected, it will be emulated by calling C<fsync> instead. |
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1563 | |
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1564 | =item IO::AIO::CWD |
1560 | =item IO::AIO::CWD |
1565 | |
1561 | |
1566 | This is a compiletime constant (object) that represents the process |
1562 | This is a compiletime constant (object) that represents the process |
1567 | current working directory. |
1563 | current working directory. |
1568 | |
1564 | |
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2117 | =item IO::AIO::tee $r_fh, $w_fh, $length, $flags |
2113 | =item IO::AIO::tee $r_fh, $w_fh, $length, $flags |
2118 | |
2114 | |
2119 | Calls the GNU/Linux C<tee(2)> syscall, see it's manpage and the |
2115 | Calls the GNU/Linux C<tee(2)> syscall, see it's manpage and the |
2120 | description for C<IO::AIO::splice> above for details. |
2116 | description for C<IO::AIO::splice> above for details. |
2121 | |
2117 | |
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2118 | =item $actual_size = IO::AIO::pipesize $r_fh[, $new_size] |
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2119 | |
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2120 | Attempts to query or change the pipe buffer size. Obviously works only |
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2121 | on pipes, and currently works only on GNU/Linux systems, and fails with |
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2122 | C<-1>/C<ENOSYS> everywhere else. If anybody knows how to influence pipe buffer |
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2123 | size on other systems, drop me a note. |
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2124 | |
2122 | =back |
2125 | =back |
2123 | |
2126 | |
2124 | =cut |
2127 | =cut |
2125 | |
2128 | |
2126 | min_parallel 8; |
2129 | min_parallel 8; |