--- IO-AIO/Changes 2011/02/11 00:05:17 1.243 +++ IO-AIO/Changes 2012/12/28 07:33:41 1.309 @@ -1,18 +1,135 @@ Revision history for IO::AIO -TODO: better autoconf.pm that can return LIBS etc. 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: 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: aio_mincore? -TODO: add? also linux-specific stuff? -TODO: O_EXEC O_SEARCH O_CLOEXEC O_DIRECTORY O_DSYNC O_NOCTTY O_NOFOLLOW O_NONBLOCK O_RSYNC O_SYNC O_TTY_INIT O_DIRECT O_LARGEFILE O_NOATIME O_ASYNC +TODO: getxattr etc.? +TODO: F_DUPFD_CLOEXEC +TODO: emulation for splice? +TODO: eio_mmap|mlock|munmap|splice... - - use _POSIX_MEMLOCK_RANGE to detetc mlock/munlock. + - 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". + - 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