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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 = '3.05'; |
198 | our $VERSION = '3.1'; |
199 | |
199 | |
200 | our @AIO_REQ = qw(aio_sendfile aio_read aio_write aio_open aio_close |
200 | our @AIO_REQ = qw(aio_sendfile aio_read aio_write aio_open aio_close |
201 | aio_stat aio_lstat aio_unlink aio_rmdir aio_readdir |
201 | aio_stat aio_lstat aio_unlink aio_rmdir aio_readdir |
202 | aio_scandir aio_symlink aio_readlink aio_sync aio_fsync |
202 | aio_scandir aio_symlink aio_readlink aio_sync aio_fsync |
203 | aio_fdatasync aio_pathsync aio_readahead |
203 | aio_fdatasync aio_pathsync aio_readahead |
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224 | All the C<aio_*> calls are more or less thin wrappers around the syscall |
224 | All the C<aio_*> calls are more or less thin wrappers around the syscall |
225 | with the same name (sans C<aio_>). The arguments are similar or identical, |
225 | with the same name (sans C<aio_>). The arguments are similar or identical, |
226 | and they all accept an additional (and optional) C<$callback> argument |
226 | and they all accept an additional (and optional) C<$callback> argument |
227 | which must be a code reference. This code reference will get called with |
227 | which must be a code reference. This code reference will get called with |
228 | the syscall return code (e.g. most syscalls return C<-1> on error, unlike |
228 | the syscall return code (e.g. most syscalls return C<-1> on error, unlike |
229 | perl, which usually delivers "false") as it's sole argument when the given |
229 | perl, which usually delivers "false") as its sole argument after the given |
230 | syscall has been executed asynchronously. |
230 | syscall has been executed asynchronously. |
231 | |
231 | |
232 | All functions expecting a filehandle keep a copy of the filehandle |
232 | All functions expecting a filehandle keep a copy of the filehandle |
233 | internally until the request has finished. |
233 | internally until the request has finished. |
234 | |
234 | |
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248 | your pathnames to the locale (or other) encoding in effect in the user |
248 | your pathnames to the locale (or other) encoding in effect in the user |
249 | environment, d) use Glib::filename_from_unicode on unicode filenames or e) |
249 | environment, d) use Glib::filename_from_unicode on unicode filenames or e) |
250 | use something else to ensure your scalar has the correct contents. |
250 | use something else to ensure your scalar has the correct contents. |
251 | |
251 | |
252 | This works, btw. independent of the internal UTF-8 bit, which IO::AIO |
252 | This works, btw. independent of the internal UTF-8 bit, which IO::AIO |
253 | handles correctly wether it is set or not. |
253 | handles correctly whether it is set or not. |
254 | |
254 | |
255 | =over 4 |
255 | =over 4 |
256 | |
256 | |
257 | =item $prev_pri = aioreq_pri [$pri] |
257 | =item $prev_pri = aioreq_pri [$pri] |
258 | |
258 | |
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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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858 | detected, it will be emulated by calling C<fsync> instead. |
858 | detected, it will be emulated by calling C<fsync> instead. |
859 | |
859 | |
860 | =item aio_pathsync $path, $callback->($status) |
860 | =item aio_pathsync $path, $callback->($status) |
861 | |
861 | |
862 | This request tries to open, fsync and close the given path. This is a |
862 | This request tries to open, fsync and close the given path. This is a |
863 | composite request intended tosync directories after directory operations |
863 | composite request intended to sync directories after directory operations |
864 | (E.g. rename). This might not work on all operating systems or have any |
864 | (E.g. rename). This might not work on all operating systems or have any |
865 | specific effect, but usually it makes sure that directory changes get |
865 | specific effect, but usually it makes sure that directory changes get |
866 | written to disc. It works for anything that can be opened for read-only, |
866 | written to disc. It works for anything that can be opened for read-only, |
867 | not just directories. |
867 | not just directories. |
868 | |
868 | |
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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 |
|
|
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 | |