Revision history for IO::AIO TODO: better autoconf.pm that can return LIBS etc. 2.0 - INCOMPATIBLE CHANGE: max_outstanding was removed, use a group with a feeder instead. - major rewrite, consider all functionality EXPERIMENTAL. - aio requests can be cancelled. - callbacks can be (re-)set later. - aio requests can have choose 9 priorities. - add aio_group: aio requests can be grouped into composite requests. - generator interface for groups. - add IO::AIO::poll_some. - major documentation improvements. - very minor bugfixes. - add aio_nop for dummy requests. - add aio_busy mainly for benchmarking and debugging. - deprecated max_outstanding. - use "fast" mutexes on linux. - use dynamic (and larger) buffers instead of putting them onto the stack. - optimise x86 and amd64 a bit. - better error checking when ENOMEM. - hopefully fix mem and dirp leaks on fork. - compiles on cygwin (but pread is broken on cygwin which is not detected by autoconf, so you have to edit autoconf/config.h yourself to enable emulation). 1.8 Sat Jun 24 22:20:44 CEST 2006 - add and/or document aio_rename, aio_link, aio_symlink and aio_move. 1.73 Wed Mar 1 22:49:32 CET 2006 - codename "jost" - AIX/Solaris(?) aren't being helpful again, hardcode a value for NAME_MAX and drive with your eyes closed (reported by wcooley@nakedape.cc). 1.72 Thu Feb 2 00:40:44 CET 2006 - another minor bug in aio_scandir, again, the callback was called twice when the directory can't be stat'ed. 1.71 Mon Dec 26 20:20:03 CET 2005 - grr, another minor bug in aio_scandir, this time resulting in a runtime error. 1.7 Mon Dec 26 19:29:48 CET 2005 - aio_scandir errornously called callback twice in some cases. - added AnyEvent example. 1.61 Wed Sep 7 19:40:42 CEST 2005 - no longer include $Config{libs}, as distros include too much garbage in there that is not installed on typical systems (for example, debian links perl against -lgdbm and many more libraries despite perl not needing it, slowing down startup and wasting memory). 1.6 Tue Aug 30 17:44:44 CEST 2005 - added aio_readdir, aio_scandir. - added aio_sendfile, including sendfile emulation when sendfile isn't available. Linux, FreeBSD and HP-UX might work (sendfilev support is unavailable on my solaris 8 machine, but preliminary code is there. What's lacking is configury stuff and testing...). 1.5 Sat Aug 20 02:32:19 CEST 2005 - create the aio threads on demand only (good after forking). - somebody nagged about C89 compatibility, so this release should be C89 compatible, but no guarantees for future ones. - abort when the configure script fails. 1.4 Wed Aug 17 08:07:27 CEST 2005 - forget to recreate the pipe after forking, this could cause deadlocks. 1.3 Wed Aug 17 07:25:54 CEST 2005 - properly propagate exceptions from callbacks, instead of silently eating them. - use a different fork algorithm that avoids recursive callback invocations and reduces fork latency in busy processes. - fix a bug where the buffer scalar in aio_read got assigned the wrong length after reading. - fix a bug where the child would process some outstanding requests from the parent. - make a copy of the callback scalar, to avoid some very uncommon (but valid) usages where the callback scalar changes. - the callback was never freed in aio_read/aio_write. - aio_read/aio_write will now set the readonly flag on the data scalar for better error reporting. 1.2 Wed Aug 17 01:22:58 CEST 2005 - verified on cygwin, linux/amd64+ia32+alpha, solaris. - use SvPVbyte for filenames now. You *need* to encode your strings to the external filename encoding first. - fix the bug where filehandles could leak (again). - clarify freebsd situation: make it work and tell me how, or go away with your underdocumented, broken and outdated OS. - fork'ing should now be officially supported (where linux and posix contradict each other, I followed posix). - only call read() once per poll, not twice (speedup). - new functions: aio_rmdir, aio_symlink. - force callback arguments to be undef or a reference, for better error catching. 1.1 Sun Aug 7 05:27:23 CEST 2005 - added configure script to detect availability of some calls. (imperfect, as we cannot detect things like -lrt due to missing feedback yet). - emulate fdatasync via fsync, pread/pwrite via unsafe read/write and readahead via manual reading on platforms lacking those. - ported t/03_errors.t+framework by Brad Fitzpatrick from Linux::AIO. - removed XOPEN_SOURCE because stupid solaris 9 doesn't compile with it enabled. Probably breaks others. Oh well. - try to be more careful with errno on non-threaded perls. - cygwins perl insisted on a matching open mode when morphing the fd to an fh. - convert sv's to "byte" encoding in aio_read/aio_write. Might do that for pathnames, too, in the future, so make sure you properly encode your pathnames. 1.0 Fri Jul 22 10:43:30 CEST 2005 - aio_open did not reliably deliver (open) filehandles. - all aio_*-functions keep a reference to the filehandle so it doesn't go away while the aio requests is working on it. - disable warnings in AIO.pm. 0.9 Wed Jul 20 23:55:04 CEST 2005 - allow recursive calls to poll_cb, use less locking calls, too. - fix the Gtk2-example in the SYNOPSIS. - use pread/pwrite not pread64/pwrite64. this was simply a leftover from Linux::AIO. (found by compiling on cygwin. Unfortunately, cygwin declares but does not implement pread/pwrite). - only include on linux. 0.5 Tue Jul 12 13:03:09 CEST 2005 - removed #include , it's not portable, and we don't need it anyway. - link against -lrt, as it might contain goodies such as fdatasync, and often aio_read, which we do not use yet, but it shouldn't hurt. 0.4 Mon Jul 11 05:28:25 CEST 2005 - added IO::AIO::flush, IO::AIO::poll. - make callback argument optional for all calls. 0.3 Mon Jul 11 01:42:37 CEST 2005 - restructured manpage. - added SYNOPSIS with examples for Event, Glib, Tk. - remove explicit context support so I don't have to maintain it for threaded perls (i.e. it should work now :). 0.2 Sun Jul 10 22:57:12 CEST 2005 - return immediately from poll_wait if nreqs==0. - get rid of the request pipe and use faster thread-thread communications for most requests and responses. 0.1 - cloned from Linux::AIO, which is very similar.