--- IO-AIO/Changes 2009/06/17 06:33:07 1.197 +++ IO-AIO/Changes 2020/02/26 15:32:59 1.388 @@ -1,13 +1,390 @@ Revision history for IO::AIO -TODO: better autoconf.pm that can return LIBS etc. +TODO: scandir - some dirs mostly contain subdirs - invert logic? TODO: aio_cptree/mvtree -TODO: reduce condvar fairness: schedule hot-cache-threads first? -TODO: splice/tee/vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) -TODO: aio_fcntl, at least for file-locking -TODO: fallocate, if it wouldn't be so useless. +TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) +TODO: getxattr, setxattr, listxattr, removexattr etc.? +TODO: emulation for splice? +TODO: syncfs/sync windows: +TODO: posix_fallocate when flags=0 +http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888 +http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx +http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx +http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx +http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx +http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx +http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx +http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx +TODO: extra socket/tcp constants &c? +TODO: name_to_handle_At + open_by_handle_at = clone fds +TODO: lchown +TODO: mount/umount2/MS_* flags +TODO: fsmount/fsconfig et al. https://lwn.net/Articles/759499/ -3.25 +TODO: rewrite rmtree et al. to support working directories (also speed them up) +TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1? +TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611) + http://www.openwall.com/lists/musl/2013/02/23/4 +TODO: FIDEDUPERANGE, file_ioctl.c +TODO: mincore +TODO: SOCK_CLOEXEc etc. +TODO: unlinkat flags, linkat flags, statat, renameat2 flags +TODO: https://kernelnewbies.org/Linux_4.11 +TODO: define useful rules for [[$wd, $path], $path] &c and implement them +TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID +TODO: mlock2, MLOCK_ONFAULT +TODO: dup3, pipe2, accept4 +TODO: dump config.log when automated testign and configure fails +TODO: ns time resolution in utime +TODO: statx +TODO: pidfd_open/pidfd_send_signal (open/poll /proc?) + +TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org +TODO: aio_splice, aio_tee +TODO: copy_file_range + - IO::AIO::splice and IO::AIO::tee didn't properly return + 64 bit values. + - added IO::AIO::accept4. + - add various F_SEAL related fcntl constants. + - removed experimentla marker for fdlimit functions. + +4.72 Wed Apr 3 04:56:03 CEST 2019 + - (libeio) if fd 0 is available do not use it for aio_wd, as it + collides with IO::AIO::CWD. + - added IO::AIO::memfd_create. + - correctly include in the vmsplice test. + - reduce codesize by ~7% on amd64 by declaring more functions + as noinline. + - documentation fixes and updates. + - experimental and undocumented preliminary support for synchronous statx. + +4.71 Sun Mar 10 13:09:26 CET 2019 + - due to an error in the linux manpages, the configure tests + for readahead, sync_file_range, splice etc. failed. This has been fixed. + +4.7 Mon Mar 4 11:28:13 CET 2019 + - majorly speed up scandir for the very special case of a non-POSIX + filesystem that nevertheless reports valid dt_type information. + The only known filesystem of this type is currently btrfs, which + didn't get it's act together to implement POSIX semantics in all + these years, and I am tired of waiting. + - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall. + - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they + were detected by autoconf. + +4.6 Sat Aug 25 21:58:36 CEST 2018 + - add st_btime, st_btimesec, st_btimensec and st_gen accessors, + mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd + but only st_gen on openbsd because they compiled their perl without support + for birthtimes). + - fix madvise and munlock to properly support negative offsets. + - allocate fd for the aio_close at boot time, to guarantee it working + later, rather than calling abort when it fails. also avoids + close-on-exec race issues after module load. + - #undef utime on win32, maybe this helps some reports of utime hangs. + - minor doc improvements. + - minor configure cleanups. + - use $Config{perllibs} instead of libs for configure. might help people + who didn't install all perl dependencies (might break things as well). + +4.54 Tue Aug 14 13:54:48 CEST 2018 + - include sys/mkdev.h or sys/sysmacros.h if available. + - further tweaks to configure invocation for systems requiring --rpath. + - no longer rely on custom paths on win32 platforms. + - try to work around buggy PAGESIZE macro on solaris. + +4.53 Tue Aug 14 11:27:50 CEST 2018 + - add $Config{libs} to LIBS for configure, to work around systems + with broken library dependencies (... openbsd). + +4.52 Sun Aug 12 08:09:45 CEST 2018 + - config.h.in was missing in distribution. + +4.51 Sun Aug 12 07:24:14 CEST 2018 + - complete rework of the autoconf framework: IO::AIO now uses its own + config.h, separate from libeio, and tries to test the actual perl + environment, not the standard system environment. + - provide nanosecond-accracy stat time accessors for both perl and IO::AIO + stat functions. + - removed non-portable C++ syntax from eio.c. + - try to fix readdir tests on cygwin spuriously failing. + +4.5 Wed Aug 1 00:23:55 CEST 2018 + - aio_mtouch touch all pages as requested, not just the first page in most cases. + - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE + and MREMAP_FIXED. + - add O_ACCMODE. + - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants. + +4.4 Tue Feb 20 07:54:12 CET 2018 + - new aio_slurp request. + - add (experimental) IO::AIO::eventfd and timerfd* function. + - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit. + - point out that aio_copy overwrites existing files. + - removed filesystem magic number table from aio_statvfs docs as + statvfs doesn't actually return this info at all (statfs does). + - add a bunch of (mostly linux-specific) constants for use in ioctls + (see aio_ioctl docs). + - treescan now has a proper manpage and useful --help output. + - new option --sync in treescan, to sync everything in a subtree. + - changed default for aio_msync flags to MSYNC_SYNC. + - document offset/length behaviour of mprotect/madvise. + - support linux's renameat2 (via aio_rename2). + - add aio_rename2, an aio_rename with flags. + - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants. + - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE. + - (libeio) use posix_close if available. + - (libeio) internal close() calls no longer disturb errno. + - add IO:AIO::FALLOC_FL_UNSHARE. + - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES + and better eventfd detection. + +4.34 Sun May 1 19:18:24 CEST 2016 + - def0.h was not properly generated during previous release, causing + compile errors on various platforms. + - major/minor were accidentally switched (reported by Alexander Lishenyuk). + - removed duplicate definition of MAP_HUGETLB, that was found due to + a bug in Perl::Tidy (testcase by alaska332@gmail.com). + - added (untested!) aio_fcntl, aio_ioctl requests. + - (libeio) names set via prctl are truncated to 15 chars + nul, not 16, + as manpages-dev originally claimed. + +4.33 Mon Jan 18 12:50:10 CET 2016 + - add IO::AIO::pipe2 function. + - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE + constants. + - added support for O_TMPFILE and O_PATH constants. + - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK + consdtants, whether they can be sensibly used or not. + - use NO_INIT where applicable. + - update libecb. + - added stability canary support. + - updated linux super magic table to 4.3.3. + +4.32 Wed Feb 11 20:32:11 CET 2015 + - replace off_t by STRLEN where appropriate, should not result in + user-visible changes. + - update ecb.h for C11 compatibility. + +4.31 Tue Jun 3 03:29:27 CEST 2014 + - work around more 5.20 bugs. backwards compatibility my ass. + +4.3 Fri Apr 11 06:22:38 CEST 2014 + - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL + without warning by switching the meaning of USE_SOCKETS_AS_HANDLES + in 5.18. What's so attractive about giving a shit about backwards + compatibility - I will never understand. + +4.2 Sat Jan 25 01:13:14 CET 2014 + - aio_group could corrupt memory because it didn't restore + the stack after req_submit. + - be more careful on (e.g. permission) errors in bin/treescan. + - work around changes in ExtUtils::MakeMaker. + - (libeio) implement aio_realpath for win32. + - (xthread) work around compile time bugs in ptw32. + - added IO::AIO::pipesize. + - (libecb) insignificant update. + +4.19 Sun Jan 6 12:47:26 CET 2013 + - avoid endless loop in fiemap with some XFS files. + - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."] + and call rename/rmdir instead of renameat/unlinkat. + +4.18 Thu Oct 11 07:01:26 CEST 2012 + - fix unintended xthread_create by intentionalising it :) + +4.17 Thu Oct 11 05:19:47 CEST 2012 + - rename aio_fallocate to aio_allocate, to match documentation. + - add list of linux fsid values to aio_statvfs docs. + - work around a bug in btrfs' FIEMAP ioctl implementation. + - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long + as per unix spec. + +4.16 Tue Aug 14 05:39:03 CEST 2012 + - aio_statvfs was wromgly marked for wd emulation, causing + it to malfunction for paths. + - fix a crash in aio_fiemap, when used on ranges without any + extents. + - work around linux kernel bug (at least in 3.2): kernel might + trash fiemap input arguments. + - work around linux kernel bug (at least in 3.2): kernel does not + set FIEMAP_EXTENT_LAST on last segment. + - work around linux kernel bug (at least in 3.2): kernel silently + truncates segment count if a file. + - make fh argument of IO::AIO::mmap optional, also add mmap/munmap + to quick overview. + - splice can corrupt data. + - (libeio) remove pread/pwrite emulation. + - do not grow mmaped scalars in aio_read. + - add FALLOC_FL_PUNCH_HOLE and document fallocate. + - provide pread/pwrite for win32, making it link again on native win32. + +4.15 Tue Apr 10 06:59:00 CEST 2012 + - always include linux/types.h for fiemap, for compatibility to + ancient systems (Paul Howarth). + - experimental support for IO::AIO::splice and ::tee (no aio_...). + - provide SEEK_HOLE and SEEK_DATA, if available. + - work around (again!) an immensely stupid bug in RHEL, defining + autoconf macros in linux system headers (analysed by Paul Howarth). + +4.14 Sat Apr 7 02:45:18 CEST 2012 + - fix stat structure usage on windows, which caused bogus stat results. + - (libeio) make readahead emulation behave more like actual readahead by never failing. + - new request aio_seek. + - new request aio_fiemap. + - autogenerate the #ifdef/#define 0 blocks for symbols we export. + +4.12 Fri Dec 30 08:51:25 CET 2011 + - realpath would return a random value if the name was too long, + instead of -1. + - port to c89. + +4.11 Mon Oct 10 00:24:11 CEST 2011 + - libeio didn't compile on !linux (Paul Howarth). + +4.1 Sun Oct 9 10:24:11 CEST 2011 + - IO::AIO did access uninitialised memory on unsuccessful stats. + - (libeio) added syncfs syscall wrapper. + - (libeio) set thread name on linux (ps -L/Hcx, top, gdb). + - (libeio) support multiple indepenent working directories. + - applied speling corrections by Nicholas Bamber. + - tune treescan #threads and #outstanding requests a bit. + - reduce the number of file descriptors in use at any one time + in treescan, to avoid running out of them (and using too much ram). + - take advantage of working directoriy abstractions + in aio_scandir and treescan. + - reduce compiled size by ~10% by not inlining some key functionality. + - added --progress switch to treescan. + +4.0 Mon Jul 18 05:01:10 CEST 2011 + - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was), + see FORK BEHAVIOUR in manpage for details. + - passes testsuite on win32 now and may actually work + (activestate 5.10.1 / MSVC6, YMMV). + - (libeio) fix a deadlock where a wakeup signal could be missed when + a timeout occured at the same time. + - (libeio) added realpath. + - (libeio) added fallocate. + - (libeio) disabling sendfile on darwin unfortunately broke the emulation. + - (libeio) do not acquire any locks when forking. + - (libeio) use fewer time() syscalls when waiting for new requests. + +3.93 Wed Jun 29 23:44:18 CEST 2011 + - ECB.H WAS MISSING. + +3.92 Wed Jun 29 14:45:41 CEST 2011 + - ecb.h was missing. + +3.91 Wed Jun 29 13:24:42 CEST 2011 + - (libeio) work around a Linux (and likely FreeBSD and other + kernels) bug where sendfile would not transfer all the requested + bytes on large transfers, using a heuristic. + - buggy sendfile caused aio_move/copy to sometimes fail for big + files (fortunately it checks that the whole file has been + transferred...) + - use libecb for higher performance and higher portability. + - (libeio) disable sendfile on darwin, it's too broken. + - disable fork tests on !linux, as only linux supports mixing + pthread and fork in perl. + - document the fact that fork doesn't work anymore when using + this module, on anything !GNU/Linux. + - increase timeout in t/04_fork.t, as too many CPAN-tester setups + run on a 0.1MHz cpu. Or so. + +3.9 Fri May 27 02:43:47 CEST 2011 + - (libeio) fix memory corruption in aio_readdirx for the flags + combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST. + - add lots of newer POSIX and GNU/Linux-specific open + flags. + +3.8 Sun Mar 27 12:25:33 CEST 2011 + - use nonstandard but maybe-working-on-bsd fork technique. + - support a max_idle value of 0. + - support setting of idle timeout value (IO::AIO::idle_timeout). + +3.72 Fri Feb 11 04:25:38 CET 2011 + - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock. + - aio_mknod always used a dev_t value of 0. + - new treescan option: --grep. + - add more S_IF macros, and major/minor/makedev "macros". + +3.71 Thu Dec 30 08:18:46 CET 2010 + - the numerical result value passed to callbacks did not stringify + correctly, due to internal reuse and failure to reset the sv flags. + - actually test for posix_[mf]advise, as at least uClibc defines + _POSIX_ADVISORY_INFO without actually having any of the required + funcitonality. ugh. + +3.7 Mon Nov 1 23:00:34 CET 2010 + - implement/add madvise, mmap, munmap, aio_mlockall, munlockall, + aio_mlock, munlock, msync and mtouch to @EXPORT_OK. + - document the sad state of affairs w.r.t. pthread on many bsds. + - do not enable mmap on systems without _POSIX_MAPPED_FILES + (openbsd 4.8). + - do not leak memory in IO::AIO::mmap when the scalar already + had string-data. + - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document + them. + - cache the result IV, for a minor speedup in the common case. + - croak when an mmapped-scalar changes location, to detect + user-errors better. + - fix aio_readlink prototype. + +3.65 Wed Mar 31 02:45:05 CEST 2010 + - actually use PATH_MAX instead of NAME_MAX for readlink, as to not + cut off long pathnames in aio_readlink (based on patch by + Rasmus Andersson). + - a double fork partially killed the event pipe (great testcase + by dormando). affects IO::AIO, BDB and Async::Interrupt. + - suck steve's dick and rename our symbols to avoid colliding + with nonstandard identifier spam on the broken os x pseudo-os. + affects IO::AIO and BDB. + +3.6 Mon Jan 11 00:43:39 CET 2010 + - (libeio) more fixes for the freebsd/apple sendfile - broken by + manpage standards, but apparently correct accoridng to actual + kernel sources. + - add IO::AIO::mmap/munmap support. + - add IO::AIO::m(un)lockall support. + - clean up manpage. + +3.5 Thu Jan 7 21:25:04 CET 2010 + - (liebio) fix freebsd sendfile (Vanilla Hsu). + - (libeio) also fix darwin sendfile that suffered from a similar bug. + - add aio_statvfs as interface to statvfs/fstatvfs. + - work around buggy symlink() on cygwin in the testsuite. + - wtf. freebsd-8.0 actually passes the testsuite! I knew + they could implement fork and semaphores one day! cheers! + +3.4 Sat Jan 2 15:13:04 CET 2010 + - (libeio) max_poll_time was not properly converted to ticks. + - clarify cancel_subs description. + - IO::AIO::sendfile did not actually return the return value + from the sendfile call. + - implement aio_msync, aio_mtouch. + - (libeio) tentatively support darwin in sendfile. + +3.31 Thu Nov 12 02:14:29 CET 2009 + - fix result status documentation of aio_copy, aio_move. + - speed up object creation considerably by avoiding + hash lookups. + +3.3 Wed Aug 5 13:52:58 CEST 2009 + - use common::sense. + - use common schmorp.h header. + - allow integers (file descriptors) in addition to file handles. + - take advantage of linux' eventfd (but it seems slower on smp?). + - use poll not select on posix platforms. + +3.261 Wed Jul 1 10:11:51 CEST 2009 + - more 0S X workarounds (patch by Tokuhiro Matsuno). + +3.26 Tue Jun 30 09:33:26 CEST 2009 + - 0S X of course claims to be posix 2008 but lacks posix_fadvise. + try to work around this horribly broken OS in a somewhat hackish + way. might help other os's too. + +3.25 Sat Jun 27 05:18:26 CEST 2009 - added IO::AIO::fadvise and IO::AIO::sendfile. - (libeio) replaced quicksort+insertion sort by a tuned radix sort + insertion sort, resulting in comparable runtime (usually