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

Comparing IO-AIO/AIO.pm (file contents):
Revision 1.141 by root, Wed Oct 22 16:30:49 2008 UTC vs.
Revision 1.147 by root, Wed Jun 3 12:24:49 2009 UTC

 use strict 'vars';
 use base 'Exporter';
 BEGIN {
-   our $VERSION = '3.16';
+   our $VERSION = '3.19';
    our @AIO_REQ = qw(aio_sendfile aio_read aio_write aio_open aio_close
                      aio_stat aio_lstat aio_unlink aio_rmdir aio_readdir
                      aio_scandir aio_symlink aio_readlink aio_sync aio_fsync
-                     aio_fdatasync aio_pathsync aio_readahead
+                     aio_fdatasync aio_sync_file_range aio_pathsync aio_readahead
                      aio_rename aio_link aio_move aio_copy aio_group
                      aio_nop aio_mknod aio_load aio_rmtree aio_mkdir aio_chown
                      aio_chmod aio_utime aio_truncate);
    our @EXPORT = (@AIO_REQ, qw(aioreq_pri aioreq_nice));
    our @EXPORT_OK = qw(poll_fileno poll_cb poll_wait flush
                        min_parallel max_parallel max_idle
                        nreqs nready npending nthreads
                        max_poll_time max_poll_reqs);
+   push @AIO_REQ, qw(aio_busy); # not exported
    @IO::AIO::GRP::ISA = 'IO::AIO::REQ';
    require XSLoader;
    XSLoader::load ("IO::AIO", $VERSION);
 =item aio_read  $fh,$offset,$length, $data,$dataoffset, $callback->($retval)
 =item aio_write $fh,$offset,$length, $data,$dataoffset, $callback->($retval)
-Reads or writes C<$length> bytes from the specified C<$fh> and C<$offset>
+Reads or writes C<$length> bytes from or to the specified C<$fh> and
-into the scalar given by C<$data> and offset C<$dataoffset> and calls the
+C<$offset> into the scalar given by C<$data> and offset C<$dataoffset>
-callback without the actual number of bytes read (or -1 on error, just
+and calls the callback without the actual number of bytes read (or -1 on
-like the syscall).
+error, just like the syscall).
+C<aio_read> will, like C<sysread>, shrink or grow the C<$data> scalar to
+offset plus the actual number of bytes read.
 If C<$offset> is undefined, then the current file descriptor offset will
 be used (and updated), otherwise the file descriptor offset will not be
 changed by these calls.
-If C<$length> is undefined in C<aio_write>, use the remaining length of C<$data>.
+If C<$length> is undefined in C<aio_write>, use the remaining length of
+C<$data>.
 If C<$dataoffset> is less than zero, it will be counted from the end of
 C<$data>.
 The C<$data> scalar I<MUST NOT> be modified in any way while the request
    my $grp = aio_group $cb;
    aioreq_pri $pri;
    add $grp aio_open $src, O_RDONLY, 0, sub {
       if (my $src_fh = $_[0]) {
-         my @stat = stat $src_fh;
+         my @stat = stat $src_fh; # hmm, might bock over nfs?
          aioreq_pri $pri;
          add $grp aio_open $dst, O_CREAT | O_WRONLY | O_TRUNC, 0200, sub {
             if (my $dst_fh = $_[0]) {
                aioreq_pri $pri;
                add $grp aio_sendfile $dst_fh, $src_fh, 0, $stat[7], sub {
                   if ($_[0] == $stat[7]) {
                      $grp->result (0);
                      close $src_fh;
-                     # those should not normally block. should. should.
+                     my $ch = sub {
-                     utime $stat[8], $stat[9], $dst;
+                        aioreq_pri $pri;
-                     chmod $stat[2] & 07777, $dst_fh;
+                        add $grp aio_chmod $dst_fh, $stat[2] & 07777, sub {
-                     chown $stat[4], $stat[5], $dst_fh;
+                           aioreq_pri $pri;
+                           add $grp aio_chown $dst_fh, $stat[4], $stat[5], sub {
+                              aioreq_pri $pri;
+                              add $grp aio_close $dst_fh;
+                           }
+                        };
+                     };
                      aioreq_pri $pri;
-                     add $grp aio_close $dst_fh;
+                     add $grp aio_utime $dst_fh, $stat[8], $stat[9], sub {
+                        if ($_[0] < 0 && $! == ENOSYS) {
+                           aioreq_pri $pri;
+                           add $grp aio_utime $dst, $stat[8], $stat[9], $ch;
+                        } else {
+                           $ch->();
+                        }
+                     };
                   } else {
                      $grp->result (-1);
                      close $src_fh;
                      close $dst_fh;
 callback with the fdatasync result code.
 If this call isn't available because your OS lacks it or it couldn't be
 detected, it will be emulated by calling C<fsync> instead.
+=item aio_sync_file_range $fh, $offset, $nbytes, $flags, $callback->($status)
+Sync the data portion of the file specified by C<$offset> and C<$length>
+to disk (but NOT the metadata), by calling the Linux-specific
+sync_file_range call. If sync_file_range is not available or it returns
+ENOSYS, then fdatasync or fsync is being substituted.
+C<$flags> can be a combination of C<IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE>,
+C<IO::AIO::SYNC_FILE_RANGE_WRITE> and
+C<IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER>: refer to the sync_file_range
+manpage for details.
 =item aio_pathsync $path, $callback->($status)
 This request tries to open, fsync and close the given path. This is a
 composite request intended to sync directories after directory operations
 (E.g. rename). This might not work on all operating systems or have any

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Comparing IO-AIO/AIO.pm (file contents): Revision 1.141 by root, Wed Oct 22 16:30:49 2008 UTC vs. Revision 1.147 by root, Wed Jun 3 12:24:49 2009 UTC

Diff Legend

Comparing IO-AIO/AIO.pm (file contents):
Revision 1.141 by root, Wed Oct 22 16:30:49 2008 UTC vs.
Revision 1.147 by root, Wed Jun 3 12:24:49 2009 UTC