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Comparing IO-AIO/AIO.pm (file contents):
Revision 1.181 by root, Tue May 4 21:14:01 2010 UTC vs.
Revision 1.183 by root, Sun Sep 12 03:40:05 2010 UTC

… …
177 aio_scandir aio_symlink aio_readlink aio_sync aio_fsync 177 aio_scandir aio_symlink aio_readlink aio_sync aio_fsync
178 aio_fdatasync aio_sync_file_range aio_pathsync aio_readahead 178 aio_fdatasync aio_sync_file_range aio_pathsync aio_readahead
179 aio_rename aio_link aio_move aio_copy aio_group 179 aio_rename aio_link aio_move aio_copy aio_group
180 aio_nop aio_mknod aio_load aio_rmtree aio_mkdir aio_chown 180 aio_nop aio_mknod aio_load aio_rmtree aio_mkdir aio_chown
181 aio_chmod aio_utime aio_truncate 181 aio_chmod aio_utime aio_truncate
182 aio_msync aio_mtouch aio_statvfs); 182 aio_msync aio_mtouch aio_mlock aio_mlockall
183 aio_statvfs);
183 184
184 our @EXPORT = (@AIO_REQ, qw(aioreq_pri aioreq_nice)); 185 our @EXPORT = (@AIO_REQ, qw(aioreq_pri aioreq_nice));
185 our @EXPORT_OK = qw(poll_fileno poll_cb poll_wait flush 186 our @EXPORT_OK = qw(poll_fileno poll_cb poll_wait flush
186 min_parallel max_parallel max_idle 187 min_parallel max_parallel max_idle
187 nreqs nready npending nthreads 188 nreqs nready npending nthreads
188 max_poll_time max_poll_reqs 189 max_poll_time max_poll_reqs
189 sendfile fadvise); 190 sendfile fadvise madvise
191 mmap munmap munlock munlockall);
190 192
191 push @AIO_REQ, qw(aio_busy); # not exported 193 push @AIO_REQ, qw(aio_busy); # not exported
192 194
193 @IO::AIO::GRP::ISA = 'IO::AIO::REQ'; 195 @IO::AIO::GRP::ISA = 'IO::AIO::REQ';
194 196
… …
239 aio_fdatasync $fh, $callback->($status) 241 aio_fdatasync $fh, $callback->($status)
240 aio_sync_file_range $fh, $offset, $nbytes, $flags, $callback->($status) 242 aio_sync_file_range $fh, $offset, $nbytes, $flags, $callback->($status)
241 aio_pathsync $path, $callback->($status) 243 aio_pathsync $path, $callback->($status)
242 aio_msync $scalar, $offset = 0, $length = undef, flags = 0, $callback->($status) 244 aio_msync $scalar, $offset = 0, $length = undef, flags = 0, $callback->($status)
243 aio_mtouch $scalar, $offset = 0, $length = undef, flags = 0, $callback->($status) 245 aio_mtouch $scalar, $offset = 0, $length = undef, flags = 0, $callback->($status)
246 aio_mlock $scalar, $offset = 0, $length = undef, $callback->($status)
247 aio_mlockall $flags, $callback->($status)
244 aio_group $callback->(...) 248 aio_group $callback->(...)
245 aio_nop $callback->() 249 aio_nop $callback->()
246 250
247 $prev_pri = aioreq_pri [$pri] 251 $prev_pri = aioreq_pri [$pri]
248 aioreq_nice $pri_adjust 252 aioreq_nice $pri_adjust
… …
261 IO::AIO::nready 265 IO::AIO::nready
262 IO::AIO::npending 266 IO::AIO::npending
263 267
264 IO::AIO::sendfile $ofh, $ifh, $offset, $count 268 IO::AIO::sendfile $ofh, $ifh, $offset, $count
265 IO::AIO::fadvise $fh, $offset, $len, $advice 269 IO::AIO::fadvise $fh, $offset, $len, $advice
266 IO::AIO::mlockall $flags 270 IO::AIO::munlock $scalar, $offset = 0, $length = undef
267 IO::AIO::munlockall 271 IO::AIO::munlockall
268 272
269=head2 AIO REQUEST FUNCTIONS 273=head2 AIO REQUEST FUNCTIONS
270 274
271All the C<aio_*> calls are more or less thin wrappers around the syscall 275All the C<aio_*> calls are more or less thin wrappers around the syscall
… …
1108as for C<aio_msync>, above, except for flags, which must be either 1112as for C<aio_msync>, above, except for flags, which must be either
1109C<0> (which reads all pages and ensures they are instantiated) or 1113C<0> (which reads all pages and ensures they are instantiated) or
1110C<IO::AIO::MT_MODIFY>, which modifies the memory page s(by reading and 1114C<IO::AIO::MT_MODIFY>, which modifies the memory page s(by reading and
1111writing an octet from it, which dirties the page). 1115writing an octet from it, which dirties the page).
1112 1116
1117=item aio_mlock $scalar, $offset = 0, $length = undef, $callback->($status)
1118
1119This is a rather advanced IO::AIO call, which works best on mmap(2)ed
1120scalars.
1121
1122It reads in all the pages of the underlying storage into memory (if any)
1123and locks them, so they are not getting swapped/paged out or removed.
1124
1125If C<$length> is undefined, then the scalar will be locked till the end.
1126
1127On systems that do not implement C<mlock>, this function returns C<-1>
1128and sets errno to C<ENOSYS>.
1129
1130Note that the corresponding C<munlock> is synchronous and is
1131documented under L<MISCELLANEOUS FUNCTIONS>.
1132
1133Example: open a file, mmap and mlock it - both will be undone when
1134C<$data> gets destroyed.
1135
1136 open my $fh, "<", $path or die "$path: $!";
1137 my $data;
1138 IO::AIO::mmap $data, -s $fh, IO::AIO::PROT_READ, IO::AIO::MAP_SHARED, $fh;
1139 aio_mlock $data; # mlock in background
1140
1141=item aio_mlockall $flags, $callback->($status)
1142
1143Calls the C<mlockall> function with the given C<$flags> (a combination of
1144C<IO::AIO::MCL_CURRENT> and C<IO::AIO::MCL_FUTURE>).
1145
1146On systems that do not implement C<mlockall>, this function returns C<-1>
1147and sets errno to C<ENOSYS>.
1148
1149Note that the corresponding C<munlockall> is synchronous and is
1150documented under L<MISCELLANEOUS FUNCTIONS>.
1151
1152Example: asynchronously lock all current and future pages into memory.
1153
1154 aio_mlockall IO::AIO::MCL_FUTURE;
1155
1113=item aio_group $callback->(...) 1156=item aio_group $callback->(...)
1114 1157
1115This is a very special aio request: Instead of doing something, it is a 1158This is a very special aio request: Instead of doing something, it is a
1116container for other aio requests, which is useful if you want to bundle 1159container for other aio requests, which is useful if you want to bundle
1117many requests into a single, composite, request with a definite callback 1160many requests into a single, composite, request with a definite callback
… …
1600 1643
1601=item IO::AIO::munmap $scalar 1644=item IO::AIO::munmap $scalar
1602 1645
1603Removes a previous mmap and undefines the C<$scalar>. 1646Removes a previous mmap and undefines the C<$scalar>.
1604 1647
1605=item IO::AIO::mlockall $flags 1648=item IO::AIO::munlock $scalar, $offset = 0, $length = undef
1606 1649
1607Calls the C<mlockall> function with the given C<$flags> (a combination of 1650Calls the C<munlock> function, undoing the effects of a previous
1608C<IO::AIO::MCL_CURRENT> and C<IO::AIO::MCL__FUTURE>). 1651C<aio_mlock> call (see its description for details).
1609
1610On systems that do not implement C<mlockall>, this function returns
1611ENOSYS, otherwise the return value of C<mlockall>.
1612 1652
1613=item IO::AIO::munlockall 1653=item IO::AIO::munlockall
1614 1654
1615Calls the C<munlockall> function. 1655Calls the C<munlockall> function.
1616 1656

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