Revision history for IO::AIO
TODO: better autoconf.pm that can return LIBS etc.
TODO: aio_cptree/mvtree/rmtree
TODO: aio_utime, aio_chmod, aio_chown? should simply stat/open first?
TODO: reduce condvar fairness: schedule hot-cache-threads first?
TODO: fix setsig
2.21 Fri Dec 22 05:03:38 CET 2006
- minor doc updates.
- minor cleanups.
- IO::AIO::poll returns request count.
- undocumented and unfinished async-signal-reporting.
2.2 Tue Oct 31 00:31:00 CET 2006
- minor doc updates.
- added aio_readlink.
- properly zero-terminate aio_read buffer.
- fix aio_read/write with nonzero dataoffset.
- reduced size of aio request structure.
- better diagnostics when pathnames etc. are not byte-encoded;
do not leak request in that case, either.
2.1 Sun Oct 29 02:01:57 CET 2006
- INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
- fix a bug in aio_move where it would fail everytime
it would have to copy files manually.
- doc updates.
- start threads only on (very low) demand.
- end superfluous threads automatically after 10s idling.
- add IO::AIO::max_idle to control this.
- some tuning applied to random places.
- add aio_mknod.
2.0 Thu Oct 26 18:27:58 CEST 2006
- minor incompatibility: max_outstanding semantics have changed.
- major rewrite, consider all functionality EXPERIMENTAL.
- aio requests can be cancelled.
- callbacks can be (re-)set later.
- aio requests can choose between 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.
- 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.
- warn about broken perl malloc.
- 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
- forgot 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 <sys/syscall.h> on linux.
0.5 Tue Jul 12 13:03:09 CEST 2005
- removed #include <endian.h>, 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.