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193 | use strict 'vars'; |
193 | use strict 'vars'; |
194 | |
194 | |
195 | use base 'Exporter'; |
195 | use base 'Exporter'; |
196 | |
196 | |
197 | BEGIN { |
197 | BEGIN { |
198 | our $VERSION = '3.02'; |
198 | our $VERSION = '3.07'; |
199 | |
199 | |
200 | our @AIO_REQ = qw(aio_sendfile aio_read aio_write aio_open aio_close |
200 | our @AIO_REQ = qw(aio_sendfile aio_read aio_write aio_open aio_close |
201 | aio_stat aio_lstat aio_unlink aio_rmdir aio_readdir |
201 | aio_stat aio_lstat aio_unlink aio_rmdir aio_readdir |
202 | aio_scandir aio_symlink aio_readlink aio_sync aio_fsync |
202 | aio_scandir aio_symlink aio_readlink aio_sync aio_fsync |
203 | aio_fdatasync aio_pathsync aio_readahead |
203 | aio_fdatasync aio_pathsync aio_readahead |
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565 | |
565 | |
566 | Try to copy the I<file> (directories not supported as either source or |
566 | Try to copy the I<file> (directories not supported as either source or |
567 | destination) from C<$srcpath> to C<$dstpath> and call the callback with |
567 | destination) from C<$srcpath> to C<$dstpath> and call the callback with |
568 | the C<0> (error) or C<-1> ok. |
568 | the C<0> (error) or C<-1> ok. |
569 | |
569 | |
570 | This is a composite request that it creates the destination file with |
570 | This is a composite request that creates the destination file with |
571 | mode 0200 and copies the contents of the source file into it using |
571 | mode 0200 and copies the contents of the source file into it using |
572 | C<aio_sendfile>, followed by restoring atime, mtime, access mode and |
572 | C<aio_sendfile>, followed by restoring atime, mtime, access mode and |
573 | uid/gid, in that order. |
573 | uid/gid, in that order. |
574 | |
574 | |
575 | If an error occurs, the partial destination file will be unlinked, if |
575 | If an error occurs, the partial destination file will be unlinked, if |
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1013 | Their lifetime, simplified, looks like this: when they are empty, they |
1013 | Their lifetime, simplified, looks like this: when they are empty, they |
1014 | will finish very quickly. If they contain only requests that are in the |
1014 | will finish very quickly. If they contain only requests that are in the |
1015 | C<done> state, they will also finish. Otherwise they will continue to |
1015 | C<done> state, they will also finish. Otherwise they will continue to |
1016 | exist. |
1016 | exist. |
1017 | |
1017 | |
1018 | That means after creating a group you have some time to add requests. And |
1018 | That means after creating a group you have some time to add requests |
1019 | in the callbacks of those requests, you can add further requests to the |
1019 | (precisely before the callback has been invoked, which is only done within |
1020 | group. And only when all those requests have finished will the the group |
1020 | the C<poll_cb>). And in the callbacks of those requests, you can add |
1021 | itself finish. |
1021 | further requests to the group. And only when all those requests have |
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1022 | finished will the the group itself finish. |
1022 | |
1023 | |
1023 | =over 4 |
1024 | =over 4 |
1024 | |
1025 | |
1025 | =item add $grp ... |
1026 | =item add $grp ... |
1026 | |
1027 | |
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1117 | See C<poll_cb> for an example. |
1118 | See C<poll_cb> for an example. |
1118 | |
1119 | |
1119 | =item IO::AIO::poll_cb |
1120 | =item IO::AIO::poll_cb |
1120 | |
1121 | |
1121 | Process some outstanding events on the result pipe. You have to call this |
1122 | Process some outstanding events on the result pipe. You have to call this |
1122 | regularly. Returns the number of events processed. Returns immediately |
1123 | regularly. Returns C<0> if all events could be processed, or C<-1> if it |
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1124 | returned earlier for whatever reason. Returns immediately when no events |
1123 | when no events are outstanding. The amount of events processed depends on |
1125 | are outstanding. The amount of events processed depends on the settings of |
1124 | the settings of C<IO::AIO::max_poll_req> and C<IO::AIO::max_poll_time>. |
1126 | C<IO::AIO::max_poll_req> and C<IO::AIO::max_poll_time>. |
1125 | |
1127 | |
1126 | If not all requests were processed for whatever reason, the filehandle |
1128 | If not all requests were processed for whatever reason, the filehandle |
1127 | will still be ready when C<poll_cb> returns. |
1129 | will still be ready when C<poll_cb> returns, so normally you don't have to |
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1130 | do anything special to have it called later. |
1128 | |
1131 | |
1129 | Example: Install an Event watcher that automatically calls |
1132 | Example: Install an Event watcher that automatically calls |
1130 | IO::AIO::poll_cb with high priority: |
1133 | IO::AIO::poll_cb with high priority: |
1131 | |
1134 | |
1132 | Event->io (fd => IO::AIO::poll_fileno, |
1135 | Event->io (fd => IO::AIO::poll_fileno, |