--- IO-AIO/Changes 2005/07/31 19:00:31 1.23 +++ IO-AIO/Changes 2006/12/22 04:05:50 1.110 @@ -1,15 +1,153 @@ Revision history for IO::AIO -1.1 - - added configure script to detetc availability of some calls. - (imperfect, as we cannot detect things like -lrt due it missing +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 by fsync, pread/pwrite by unsafe read/write - and readahead by manual reading on platforms lacking those. + - 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.