package lwt_domain
Helpers for using Domainslib with Lwt
Install
Dune Dependency
Authors
Maintainers
Sources
5.5.0.tar.gz
md5=94272fac89c5bf21a89c102b8a8f35a5
sha512=8951b94555e930634375816d71815b9d85daad6ffb7dab24864661504d11be26575ab0b237196c54693efa372a9b69cdc1d5068a20a250dc0bbb4a3c03c5fda1
CHANGES.html
CHANGES
===== 5.5.0 ===== ====== Deprecations ====== * Lwt_main.yield and Lwt_unix.yield are deprecated in favor of the generic Lwt.pause, and Lwt_unix.auto_yield is deprecated in favor of the new Lwt_unix.auto_pause. Currently, Lwt_main.run resolves paused promises more frequently than yielded promises; the difference is unintended but existing applications could unintentionally depend on it. (#855, #858, Favonia) ====== Fixes ====== * Use is_blocking in dup and dup2 to fix ENOTSOCK on Windows. (#869, Antonin Décimo) * Lwt_unix.lstat was incorrectly calling Unix.stat on Win32. Fixes the behavior of Lwt_io.with_temp_dir following symlinks to directories on Win32. (#883, Antonin Décimo) * Support deleting symlinks on Windows during cleanup of Lwt_io.with_temp_dir. (#886, Antonin Décimo) * Lwt_react.S.l[2-6]_s used polymorphic equality which could cause errors when handling functional values. (#893, Jérôme Vouillon) * On Windows, treat ERROR_BROKEN_PIPE on read as zero-read instead of error. See OCaml PR #4790. (#898, Antonin Décimo) * Fix compilation under MSVC by replacing Noreturn with CAMLnoreturn. (#880, #887, Nicolás Ojeda Bär) ====== Additions ====== * Lwt_bytes.blit_from_string: string complement of Lwt_bytes.blit. (#882, Hugo Heuzard) * Lwt_seq: a Seq-like data-structure with Lwt delayed nodes. (#836, #842, Zach Shipko) * Lwt_unix.auto_pause: the replacement of Lwt_unix.auto_yield that uses Lwt.pause instead of Lwt_unix.yield. (#855, #858, Favonia) * Lwt_stream.return, Lwt_stream.return_lwt: singleton stream constructors. (#864, Boning Dong) * Add ?to_dir param from Unix.symlink to Lwt_unix.symlink wrapper. (#884, Antonin Décimo) * Lwt_stream.of_lwt_seq to convert an Lwt-sequence into an Lwt-stream. (#873) * Support IPv6 (always) and PF_UNIX (with OCaml >= 4.14) socketpair on Windows. (#870, #876, Antonin Décimo, David Allsopp) * In the Lwt_unix module, add `?cloexec:bool` optional arguments to functions that create file descriptors (`dup`, `dup2`, `pipe`, `pipe_in`, `pipe_out`, `socket`, `socketpair`, `accept`, `accept_n`). The `?cloexec` argument is simply forwarded to the wrapped Unix function (with OCaml >= 4.05, see PR ocaml/ocaml#650), or emulated as best-effort with `Unix.set_close_on_exec` on older OCaml versions. (#327, #847, #872, #901, Antonin Décimo) * Lwt_domain: helpers for using domainslib from Lwt. (#860, Sudha Parimala) ====== Misc ====== * Code quality improvement: remove an unneeded Obj.magic. (#844, Benoit Montagu) * On Windows, use the Unicode API in C stubs and functions introduced in OCaml 4.06 to handle Unicode strings. Raise the minimum requirement to OCaml 4.06 (on Windows only). (#843, #903, Antonin Décimo) * More complete coverage in the CI. (#890, #894, #896, Sora Morimoto) * Code quality improvement: use exception pattern instead of try-with. (#895, Antonin Décimo) * Code quality improvement: fix warnings on 4.13. (#899) ===== 5.4.2 ===== ====== Bugs fixed ====== * Fix compilation on Windows by providing missing dummy stubs (#868, Andreas Hauptmann, Antonin Décimo). ===== 5.4.1 ===== ====== Bugs fixed ====== * Fix Lwt_fmt.stderr to actually point to stderr (#852, #850, Volker Diels-Grabsch). * Make temporary files created by Lwt_io.with_temp_dir deletable on Windows by removing the RO bit (#849, #861, Antonin Décimo). * Handle ECONNABORTED in Lwt_io.establish_server* (#829, #830, Reynir Björnsson, Hannes Mehnert). ====== Bugfixes ====== * Fix Lwt_fmt.stderr to actually point to stderr (#852, #850, Volker Diels-Grabsch). * Lwt_io.establish_server* handles ECONNABORTED (#829, #830, Reynir Björnsson) ===== 5.4.0 (2020-12-16) ===== ====== Installability ====== * Support for OCaml 4.12 (#804, #826, Kate Deplaix). * lwt_ppx now uses ppxlib. This introduce a transitive dependency to OCaml.4.04 (#807, Philippe Veber). ====== Bugfixes ====== * Catch exceptions in Lwt_react.of_stream (#809, Petter A. Urkedal). * Avoid segfaults in Lwt_unix.tcsetattr (#798, Frédéric Fortier). ====== Additions ====== * fork method in Lwt_engine. This method is a noop in the released engines but it paves the way to a libuv-based engine (#811, Ulrik Strid, Anton Bachin). * Lwt_main.abandon_yielded_and_paused for use in conjunction with Lwt.fork (#789, Julien Tesson). * Lwt.wrap_in_cancelable to complete protect and no_cancel (#785). * Support for IOV_MAX in [Lwt_unix.IO_vectors.system_limit (#801, Pino Toscano). * Lwt_unix.send_msgto (#805, Antonio Nuno Monteiro). * Lwt.dont_wait, a more explicit alternative to Lwt.async (#820, François Thiré). ====== Miscellaneous ====== * Avoid double-reversing when traversing lists. This may change the order in which some promises are collected, which may change which of several rejection is arbitrarily selected during concurrent traversal (#784). * Numerous documentation improvements (including external contributions from Bikal Lem, Sudha Parimala, and Hannes Mehnert). ===== 5.3.0 (2020-04-22) ===== * Add let* and and* in Lwt.Syntax and Lwt_result.Syntax (#775, Rahul Kumar). * Also add let+ and and+ (#776, Craig Ferguson). * Add Lwt_result.both (#775, Rahul Kumar). * Always use libev if detected (#601). ===== 5.2.0 (2020-03-09) ===== * Add Lwt_unix.pread, Lwt_unix.pwrite, and Lwt_unix.pwrite_string (#768, Pierre Chambart). * Internally use accept4(2) when available (#769, Pierre Chambart). * PPX: internally use 4.10 ASTs (#765). ===== 5.1.2 (2020-02-23) ===== ====== Bugs fixed ====== * Do not run C exit hooks after failed exec (#764, diagnosed Lucian Wischik). * discover.ml: don't add flags for missing system libraries (#760, #761, Olaf Hering). * discover.ml: don't run the opam binary (#761). * Warning on 4.10 in lwt_unix_stubs.c (#766). ===== 5.1.1 (2020-01-07) ===== ====== Bugs fixed ====== * Exception raised by Lwt_main.run upon call to exit (#758, reported Gal Schlezinger). ===== 5.1.0 (2019-12-28) ===== ====== Additions ====== * Lwt.all (9976f67). ====== Documentation ====== * Add index.mld for nicer odoc output (1059a80, prompted Anurag Soni). * Link to rwo-lwt from the online manual to make it more discoverable (4129a22, suggested Anurag Soni). * Fix doc links in opam files (7617607). ===== 5.0.1 (2019-12-22) ===== ====== Bugs fixed ====== * Additional fix for libev detection under esy (#757, Antonio Nuno Monteiro). ===== 5.0.0 (2019-12-15) ===== ====== Breaking ====== See #584 for an extended summary and discussion of this release as a whole, or individual issues for each change specifically. * The callback passed to Lwt.async must now evaluate to unit Lwt.t, rather than _ Lwt.t (#603, requested @cfcs). * Lwt.choose, Lwt.nchoose, Lwt.nchoose_split, Lwt.pick, and Lwt.npick now raise Invalid_argument if given the empty list (#557, Tim Reinke). * Catch nested calls to Lwt_main.run (#607, #609, prompted François-René Rideau). * Use the new Lwt_unix.IO_vectors in Lwt_unix.recv_msg and Lwt_unix.send_msg (#594, prompted Marcello Seri). * Make Lwt_unix.Async_switch a synonym for Lwt_unix.Async_detach (#572). * Remove the redundant configure.ml (#700). * PPX: remove support for general [%lwt ...] expressions (#527). * PPX: remove support for Lwt_log and the -log option (#520). * PPX: remove the -no-debug option (#528). ====== Bugs fixed ====== * libev detection under esy (#755, Antonio Nuno Monteiro). ===== 4.5.0 (2019-12-15) ===== ====== Additions ====== * Implement Lwt_unix.readv and Lwt_unix.writev on Windows using Lwt_unix.read and Lwt_unix.write (#745, requested Ulrik Strid). * Implement Lwt_unix.wait4 on Android using Unix.waitpid, as on Windows (#752, @EduardoRFS). * LWT_DISCOVER_ARGUMENTS=--verbose flag, passed through environment variable, for debugging the feature discovery (configuration) process (#740). ====== Bugs fixed ====== * To help with fork, don't call back into Lwt_main at process exit to call Lwt exit hooks when there are none (#737, prompted Martin Jambon). * Properly retain references to buffers in Lwt_unix.readv, Lwt_unix.writev, Lwt_bytes.read, Lwt_bytes.write, and Lwt_bytes.mincore; the references could be released too early in rare circumstances (#742, prompted Olaf Hering). * Don't install a SIGCHLD handler when Lwt is linked in but not used (#738, requested Sam Goldman, additional information Waleed Khan). * Link with -lpthread on more platforms that support and require the flag (#748, Olivier Andrieu). * Fix syntax errors in feature test programs (#748, Olivier Andrieu). * C warning with OCaml 4.10 (#751, @kit-ty-kate). ====== Miscellaneous ====== * Make tests more reliable (#726, #743, prompted Olaf Hering). * Fix deprecation annotation on internal API (#735, Antonio Nuno Monteiro). * Fix broken link in Lwt_mvar docs (#739, reported @tg-x). * Fix broken links in README (#750, @imbsky). ===== 4.4.0 (2019-10-09) ===== ====== Additions ====== * ?suffix argument for Lwt_io.with_temp_file and Lwt_io.open_temp_file (#724, requested Volker Diels-Grabsch). * Lwt_io.with_temp_dir and Lwt_io.create_temp_dir (#724, requested Volker Diels-Grabsch). ====== Changes ====== * Lwt_io.establish_server: increase default backlog from 5 to SOMAXCONN (#731, suggested Konstantin Olkhovskiy). * PPX: use OCaml 4.09 ASTs to support recent features (074f679). * PPX: deprecate let%lwt structure items (#733, prompted Didier Le Botlan). ====== Miscellaneous ====== * Tests now pass in more environments (#721, #722, #725, #729, reported Olaf Hering). ===== 4.3.1 (2019-09-26) ===== ====== Bugs fixed ====== * Lwt clobbered backtraces (#714, 6e855b8, 4694853, reported Volker Diels-Grabsch). * Lwt_unix.fork was broken on glibc 2.28 (#704, @ygrek). * Fix build with musl-gcc (#718, #719, reported Fabian Hemmer). * Support more Lwt_unix.madvise options (#716, Anton Kochkov). ====== Miscellaneous ====== * Silence configure script (#717, requested Anil Madhavapeddy). * Greatly sped up CI and tests. ===== 4.3.0 (2019-08-20) ===== ====== Planned to break in 5.0.0 ====== For general discussion of breakage in Lwt 5.0.0, see #584. See #293 about how Lwt announces and does breaking changes.* * The signature of Lwt.async will change from (unit -> 'a Lwt.t) -> unit to (unit -> unit Lwt.t) -> unit (#603, prompted @cfcs). * Lwt_unix.send_msg and Lwt_unix.recv_msg will be changed to take Lwt_unix.IO_vectors.t instead of Lwt_unix.io_vectors (#702, prompted Marcello Seri). * Nesting calls to Lwt_main.run will be forbidden, and will raise an Failure. Most programs don't do this (#609, prompted François-René Rideau). * configure.ml will be removed in favor of an improved discover.ml This affects only users who are configuring Lwt as part of a manual installation (i.e., not users of opam or esy). See discover.ml for usage (#700). * Lwt_unix.async_method will have no effect. In practice, it already does nothing, and has almost no users (#572). ====== Additions ====== * Lwt_process: allow setting working directory for new processes (#694, Thomas Leonard). * PPX: use OCaml 4.08 ASTs to support latest features (#697). * Lwt_io.NumberIO: use compiler intrinsics for better performance (#178, requested Mauricio Fernandez). ====== Bugs fixed ====== * Race condition in Lwt_react.S.limit (4e592eb). * Use fallback rule during configuration (#693, Hongchang Wu). * Fix typos (#688, #692, @Fourchaux). ===== 4.2.1 (2019-04-02) ===== ====== Bug fixed ====== * Detect libev correctly when building under esy (#679, Antonio Nuno Monteiro). ===== 4.2.0 (2019-03-25) ===== ====== Additions ====== * Lwt.both (#668, Brendan Long, Jeremy Yallop). * ppx_let support with open Lwt.Infix (#667, Brendan Long). * Lwt_stream.of_seq (#646, Hezekiah Carty). * Lwt_io.is_closed (#635, Andreas Garnaes). * Lwt_unix.IO_vectors.byte_count (#645, Raphaël Proust). * Support for higher baud rates in Lwt_unix.tcgetattr and Lwt_unix.tcsetattr (#678, Frédéric Fortier). * Replacement functions in Lwt_main for deprecated functions based on Lwt_sequence (#660). ====== Bugs fixed ====== * 4.08 compatibility (#658). * Stack overflow in Lwt_stream.iter_p (#432, Varun Kohli). * Incorrect bounds check in Lwt_bytes.mincore (#627, Cédric Le Moigne). * Lwt_bytes.mincore will not be available in future releases of OpenBSD (#663, Kenneth Westerback). * Missing header in the Android build (#652, Justus Matthiesen). * Build broken on MSVC (98303de, 85535f7, Dmitry Bely). * Build broken on OpenBSD (#672, Christopher Zimmermann). * Lwt_io.of_bytes produces a channel with inaccurate positions (#636, Nathan Rebours). * Lwt_io._.read_int behaves incorrectly on 32-bit systems (#671, reported Dmitry Bely). * Inaccurate locations for errors related to ;%lwt (#602, @kandu). * (_ : t) not recognized as a catch-all pattern by the PPX (#640, Florian Angeletti). * Race condition in Lwt_react.E.limit (#606, Avni Fatehpuria). * Premature deallocation in Lwt_react.E.with_finaliser and Lwt_react.S.with_finaliser (#626, El-Hassan Wanas). ====== Miscellaneous ====== * New tests for Lwt_bytes, portions of Lwt_unix (#619, #621, #628, #630, #673, Cédric Le Moigne, Anurag Soni). * Test suite improvements (#656, Dave Parfitt). * Clarifications for documentation of Lwt.try_bind, Lwt.pick (#648, #650, Bikal Lem). * Fixed documentation of Lwt_io.read_line (#657, Yoni Levy). * Fixed some typos (#611, #613, Rich Neswold). ===== 4.1.0 (2018-06-26) ===== ====== Additions ====== * Change license to MIT (#560). * Lwt_fmt, an Lwt-aware version of Format (#548, Gabriel Radanne). * Lwt_io.establish_server_with_client_socket (#586). ====== Bugs fixed ====== * Lwt_stream.iter_n: rename ?max_threads argument to ?max_concurrency (#581, Hezekiah Carty). * PPX: reject match expressions that have only exception cases (#597, Raphaël Proust). ====== Miscellaneous ====== * Improvements to Lwt_pool docs (#575, Bobby Priambodo). * Restore all PPX tests (#590, Jess Smith). ===== 4.0.1 (2018-04-13) ===== ====== Bugs fixed ====== * Race condition in worker thread management in Lwt_unix (#569, diagnosed Gabe Levi). * Hang in Lwt_unix.read on Windows (#574, #569, 86a6baf, diagnosed Gabe Levi). * Docs: note that Lwt_io.open_file for writing truncates the file by default (#570, reported Tóth Róbert). ===== 4.0.0 (2018-03-30) ===== ====== Breaking ====== These changes were announced in Lwt 3.1.0 and Lwt 3.2.0. See #453 about smooth upgrade paths. * Delete package lwt.ppx. The PPX syntax is in package lwt_ppx since Lwt 3.2.0 (#338). * Remove >> syntax from the PPX (#495). * Delete modules Lwt_log, Lwt_daemon, Lwt_log_core, and package lwt.log. These are in package lwt_log since Lwt 3.2.0, but it is recommended to use Logs_lwt from the logs library instead (#484, initiated Hannes Mehnert). * Delete package lwt.preemptive. It is an alias for lwt.unix since Lwt 3.2.0 (#487). * Delete package lwt.syntax. The Camlp4 syntax is in package lwt_camlp4 since Lwt 3.2.0 (#370). * Delete module Lwt_chan, a predecessor of Lwt_io (#441). * Delete package lwt.simple-top, a predecessor of utop (#371). * Make resolvers (Lwt.u) contravariant (#458). ====== Planned to break in 5.0.0 ====== * Lwt.pick will raise Invalid_argument on the empty list, instead of returning a forever-pending promise. Also applies to Lwt.choose, Lwt.npick, Lwt.nchoose, and Lwt.nchoose_split (#562, Tim Reinke, prompted Hezekiah Carty). * Remove translation of [%lwt ...] to Lwt.catch from the PPX (#527). * Remove -no-debug option from the PPX (#528). * Remove Lwt_log support from the PPX (#520). ====== Bugs fixed ====== * Lwt_io.file_length now fails with EISDIR when used on a directory (#563, requested Cedric Cellier). * Lwt_react.E.limit and Lwt_react.S.limit now working more correctly (#566, @Freyr666). ====== Miscellaneous ====== * Documentation improvements (#561, Jason Evans). ===== 3.3.0 (2018-03-07) ===== ====== Bugs fixed ====== * Restore backtrace support (#554, #556, Gabe Levi). * Serious logic error that could cause Lwt to hang or crash (#549, reported @koen-struyve). * All Lwt_list functions are now tail-recursive (#538, Joseph Thomas). ====== Additions ====== * Support ;%lwt syntax in the PPX (#307, Hezekiah Carty). * Lwt_stream.iter_n (#312, Hezekiah Carty). ====== Miscellaneous ====== * Testing improvements (#536, #541, @cedlemo). * Documentation improvements (#544, #546, #547, #553, #559, Daniil Baturin, Jason Evans, Jess Smith, Milo Turner). ===== 3.2.1 (2018-01-11) ===== Lwt 3.2.1 is released because it still packages lwt.ppx, a deprecated copy of package lwt_ppx, and the two packages should be kept in sync. ====== Deprecations ====== * All PPX options are deprecated and should not be used (#534). * The [%lwt ...] PPX syntax should be replaced by Lwt.catch (#534). ====== Fixes ====== * Clean up PPX -help usage message output (#525, Zan Doye). ====== Miscellaneous ====== * More thorough testing (#512, #535, Joseph Thomas). * Clarification of the C binding (#521, @cedlemo). ===== 3.2.0 (2017-12-19) ===== ====== Additions ====== * Lwt_mvar.take_available, Lwt_mvar.is_empty (#459, Hezekiah Carty). * Lwt_io.open_temp_file, Lwt_io.with_temp_file (#467, Joe Thomas). * New reference documentation for module Lwt (#469). * Lwt_pool.clear and ?dispose argument for Lwt_pool.create (#483, Hezekiah Carty). * Lwt_pool.wait_queue_length (#493, Jerome Vouillon). ====== Bugs fixed ====== * Lwt.npick never worked (#447, Zack Coker). * Lwt_pool.use now always calls ?validate on elements (#461, Joe Thomas). * Better locations generated by the PPX (#470, Fabian Hemmer). * Keep worker thread count accurate in Lwt_unix when pthread_create fails (#493, @koen-struyve). * Leaked exceptions in Lwt_list (#499). * Memory leak in Lwt_unix.getnameinfo (#503, Hannes Mehnert). ====== Planned to break in 4.0.0 ====== See #453 for details and instructions about planned breakage in Lwt 4.0.0. * The semantics of Lwt will be adjusted for better exception and stack safety (#500). * The PPX will be factored out into its own opam package, lwt_ppx. This package is installable from opam now, as of Lwt 3.2.0 (#338). * Similarly, the deprecated Camlp4 syntax will be factored out into lwt_camlp4, which is installable from opam now (#370). * Modules Lwt_log, Lwt_log_core, Lwt_log_rules, and Lwt_daemon are being deprecated and factored out into opam package lwt_log, also installable from opam now. Use the logs library for logging, in particular module Logs_lwt. Direct daemonization is deprecated on most platforms (#484, Hannes Mehnert). * The >> construct from the PPX will be deleted (#471, Raphaël Proust). * Package lwt.preemptive is being merged into lwt.unix. In 3.2.0, lwt.preemptive becomes an alias for lwt.unix, and the package name lwt.preemptive will be deleted in 4.0.0 (#487). ====== Deprecations ====== * Lwt.waiter_of_wakener should not be used, as it can lead to soundness bugs in future (but not current) Lwt (#458). * Lwt_sequence was deprecated in Lwt 2.6.0, but it now has a warning attached, as do Lwt.add_task_r and Lwt.add_task_l, which use it (#361). * Use of the following functions is discouraged, but they have not yet received deprecation warnings: Lwt.with_value, Lwt.cancel, Lwt.state, Lwt.ignore_result (#359, #469). ====== Miscellaneous ====== * Replace references to Camlp4 in the manual with the PPX (#457, Bobby Priambodo). * More tests for Lwt_pool (#464, Joe Thomas). * Expect tests for the PPX (#474, Fabian Hemmer). ===== 3.1.0 (2017-07-19) ===== ====== Additions ====== * Port to Jbuilder (#374, Andrew Ray). * Lwt_io.establish_server_with_client_address (#346, Rudi Grinberg). * Lwt_unix.getcwd (#403, Raphaël Proust). ====== Planned to break in 4.0.0 ====== * Delete lwt.simple-top (#371). * Delete Lwt_chan (#441). ====== Fixes ====== * Make Lwt_log functions tail-recursive (#348, Jan Doms). * Make more of Lwt_list tail-recursive (#347, Jan Doms). * Improve string messages in exceptions (#368, #382, Jan Doms, Raphaël Proust). * Don't call Unix.set_nonblock or Unix.clear_nonblock unnecessarily on some fds (#356, David Sheets). * Lwt_unix.sleep and Lwt_unix.timeout returning too early when using libev (#433, Stijn Devriendt). * Lwt_sequence.fold_r iterating the wrong way in some cases (#405, Stijn Devriendt). * Build conflicts in some cases due to duplicate cst_to_constr function (#362, Jérémie Dimino). * Don't use deprecated readdir_r system call (#430, Raphaël Proust). ====== Miscellaneous ====== * The Lwt core, lwt.ml, has been thoroughly refactored and commented (#354, reviewed Gabriel Radanne, Edwin Török, Raphaël Proust, Jan Doms, Fabian Hemmer, Sebastien Mondet, Simon Cruanes, Anil Madhavapeddy, Pierre Chambart, and many others). * Lots of tests for most of the Lwt core (#339, #389, #392, #440, #448, #450, Joseph Thomas, Ryan Slade). * Documentation fixes (including by Joseph Thomas, Raphaël Proust, Richard Degenne, Stavros Polymenis). * Contributing documentation (#379). * Massively adjust whitespace for legibility (#400, #409, #416, Richard Degenne). * Improvements to CI (Etienne Millon, Raphael Rafatpanah, Zack Coker, Yotam Barnoy). * The additional packages lwt_ssl, lwt_react, lwt_glib get new minor releases, the change being new Jbuilder build systems (#374, Andrew Ray). ===== 3.0.0 (2017-04-10) ===== ====== Breaking ====== * These changes were originally announced in release 2.7.0 (#308). * Lwt_engine.libev now has an optional argument for selecting the libev back end (#269, #294, Jeremy Yallop). * Lwt_io.establish_server has been changed to make it more difficult to leak file descriptors (#258, #260). * Lwt_io.shutdown_server now evaluates to a promise, which completes when the listening socket's close(2) operation completes (#259). * Lwt_unix.bind now evaluates to a promise, because the bind(2) system call can block for Unix domain sockets (#296, requested David Sheets). * ocamlfind packages lwt.react, lwt.ssl, lwt.glib are replaced by lwt_react, lwt_ssl, lwt_glib. These have been separate OPAM packages, under those names, since 2.7.0 (#301). ===== 2.7.1 (2017-04-08) ===== ====== Fixes ====== * OCaml 4.05 compatibility (Mauricio Fernandez, #322). * Give Lwt_unix.file_exists the same semantics as Sys.file_exists, with respect to not raising Unix.Unix_error (Mauricio Fernandez, #316). * Improve diagnostics from build scripts (Tim Cuthbertson, #313, #314). ====== Additions ====== * Announce Lwt_result, which was originally released as an experimental module in release 2.6.0 (Simon Cruanes, #320, #247). ===== 2.7.0 (2017-01-03) ===== ====== General ====== * Values of types a Lwt.t are now referred to as promises rather than threads (#300). The manual has not yet been updated. ====== Breaking ====== * After this release, Lwt will switch to semantic versioning. Future breaking changes will first require deprecation, then a major version number increase (#293). * Lwt no longer supports OCaml 4.01 (#272). * Lwt_unix.fdatasync is no longer available on macOS. It was calling an undocumented system call on that system (#285, Jeremy Yallop). ====== Planned to break in 3.0.0 ====== * APIs in this category have deprecation messages attached. The messages will be displayed if you recompile your code, and can also be seen in #308. * Lwt_engine.libev will have an argument for selecting the libev back end (#269, #294, Jeremy Yallop). * Lwt_io.establish_server will be replaced by a version that makes it difficult to leak file descriptors (#258, #260). * Lwt_io.shutdown_server will evaluate to a promise, which indicates when the close operation completes (#259). * Lwt_unix.bind will evaluate to a promise, since bind can block for Unix domain sockets (#296, requested David Sheets). * ocamlfind packages lwt.react, lwt.ssl, and lwt.glib will be replaced by the new lwt_react, lwt_ssl, and lwt_glib. These are now distributed in new OPAM packages with the same names, separately from OPAM package lwt (#301). ====== Additions ====== * Lwt_unix.readv and Lwt_unix.writev - zero-copy scatter/gather I/O (#291, #299). * ?fail_on_error argument for Lwt_log.load_rules (#306, Daniil Baturin). * Lwt_log.level_of_string (#306, Daniil Baturin). ====== Changes ====== * Lwt_stream.of_list, Lwt_stream.of_array, Lwt_stream.of_string now immediately push all elements into the created streams (#239, Spiros Eliopoulos). ====== Deprecations ====== * Lwt_stream.map_exn in favor of Lwt_stream.wrap_exn, which uses OCaml's standard result type (#295). ====== Bugs fixed ====== * Ungraceful failure if directory handle used after Lwt_unix.closedir (#292). * Buffer overflow in Lwt_unix.readdir and Lwt_unix.readdir_n (#292). * Unnecessary allocations in Lwt_unix.readdir_n (#292, found Jeremly Yallop). ====== Miscellaneous ====== * Annotate existing deprecations with [@@ocaml.deprecated ...] (5737f5b). * Improvements to the examples (#288, Rich Neswold). * Documentation fixes, including by Rich Neswold. * New tests and various minor internal improvements. * Run tests in CI with all OCaml warnings enabled (dadb926). * Much cleaner build output. * Add scratch/ directory for local use by developers. ===== 2.6.0 (2016-10-27) ===== ====== Additions ====== * Lwt_stream.closed and Lwt_stream.is_closed (#223, Spiros Eliopoulos). * Lwt_switch.with_switch (#256, Thomas Leonard). * Define 'a Lwt.result as ('a, exn) result (#247, Simon Cruanes). * Lwt_condition.broadcast_exn (#241, Nicolas Ojeda Bar). * Lwt_unix.utimes (#193). ====== Bugfixes ====== * Memory leak in Lwt_unix.readdir_n (#229, diagnosed Thomas Leonard). * Memory leak in Lwt.protected (#56, #181, reported @ygrek, Mauricio Fernandez). * Lwt_switch.turn_off hook exception handling (995b704). * Handling of ENOTCONN when channels passed to handler of Lwt_io.establish_server are closed (95fb431). * Duplicate exceptions on implicit close in Lwt_io.with_connection (b1afe45). * Deadlock in Lwt_main.at_exit (#48, #114, reported Jérôme Vouillon, Vincent Bernardoff). * Performance of Lwt_preemptive.detach (#218, #219, Mauricio Fernandez). * Bad hash functions for libev loops (#146, reported Mark Christiaens). * Hash of uninitialized data in Lwt_io (#217, reported Jeremy Yallop). * Update log sections after Lwt_log.load_rules (#188, reported @rand00). * Print three digits for milliseconds in Lwt_log (#264, Fabian Hemmer). * Do not truncate Unix job notification ids in C (#277, diagnosed @stijn-devriendt). ====== Deprecations ====== * Lwt_stream.on_termination: bind on Lwt_stream.closed instead. * Lwt.make_value, Lwt.make_error: use result's Ok and Error constructors. * Lwt_pqueue, Lwt_sequence: use min-heaps and linked lists from another library (#135). * Pa_lwt, Pa_lwt_log: use Ppx_lwt. ====== Miscellaneous ====== * Update examples to use PPX syntax instead of Camlp4 (#108, Peter Zotov). * Set up Travis, AppVeyor for testing on Linux, OS X, Cygwin, and MinGW. MSVC also planned. * Large amount of local documentation fixes (Hezekiah Carty, Etienne Millon, Leo Wzukw, Sebastien Mondet, reports by others). * A bunch of new tests. ===== 2.5.2 (2016-04-25) ===== * Fix compatibility for 4.03 (#227) * Various documentation fixes (#199,#200,#210) * Improve wildcard detection in the ppx (#198) * Fix Lwt_stream: bounded_push#close wake the reader (#201) * Fix infinite loop with Lwt_stream.choose (#214) * Fix laziness failure with Lwt_io.common#close (#207) ===== 2.5.1 (2015-12-07) ===== * Lwt_stream.on_terminate -> Lwt_stream.on_termination * Lwt_unix: handle O_CLOEXEC * Lwt_log: add OSX syslog path * Ppx: Improve lwt%match, improve catchall detection * Add Lwt_unix.file_exists and Lwt_unix.Large_file.file_exists * Build fixes ===== 2.5.0 (2015-07-03) ===== * API CHANGE: Functions in Lwt_io that were previously using a ~buffer_size argument now takes a ~buffer argument. * Accept ?buffer argument in Lwt_ssl.{in,out}_channel_of_descr. * Use newer Ssl bigarray read/write functionality to avoid allocation in Lwt_ssl. * Fix non-reentrant function calls (#136) * IPv4 multicast support. * Add support for if%lwt in ppx extension. * Add Lwt.return_some. * Disable log syntax extension by default in ppx. Give [-log] as ppx argument to enable it. * Nanosecond precision for Lwt_unix.stat. * Minor fixes + documentation improvements. ===== 2.4.8 (2015-03-11) ===== * Fix compilation under Windows (#117, #129) * Fix Lwt_engine.on_timer (#121) * Add Lwt_log_core.reset_rules (#123) * Fixed typos in the documentation (#119, #131) ===== 2.4.7 (2015-01-06) ===== * camlp4 is now optional. * Add safe_string compliance except for Lwt_ssl (need ocaml-ssl fix). * Add Lwt.Infix module to open instead of Lwt to have (>>=), etc. * Add Lwt_list.filter_map_{s,p} functions. * Add Lwt.fail_{with,invalid_arg} functions. * Improved Android support. * Remove deprecated lwt.text and lwt.top libraries. * Remove deprecated Lwt_signal and Lwt_event modules from lwt.react. * Fix #111: try_lwt wrongly warns about unused match case. * Fix #96: Fix Lwt_react.S.limit and Lwt_react.E.limit. * Fix #91: Workaround to fix compilation on OSX. ===== 2.4.6 (2014-10-12) ===== * Add a ppx syntax extension * Add a ?fd argument to Lwt_io.{open_connection,with_connection,establish_server}. * Fix stub for getaddrinfo and getprotobyname * Windows fix: don't throw an exception in the notification handler if we're shutting down * Fix include file search in ./configure * ./configure fixes for windows * Fix: use sys_exit instead of exit when Unix.execv fails ===== 2.4.5 (2014-04-21) ===== * Lwt_ssl: expand API to allow setting socket options with Ssl functions * fix for camlp4 trunk * support for React 1.0.0 * add Lwt_sequence.find_node_* functions * Lwt_log: get backtrace early to overcome exns in Printexc.to_string * fix potential deadlock in lwt_unix_recv_notifications * lwt.glib fixes: - handle HUP - fix for BSD/OSX * do not raise an exception in Lwt_log if argv[0] is blank ===== 2.4.4 (2013-10-22) ===== * add Android support * fix issues in stubs for Lwt_unix jobs * fix compatibility issue with OCaml 4.01 * fix the stub for ev_timer_init * add Lwt.log containing Lwt_log_core, the Unix-free part of Lwt_log * add Lwt_ssl.get_fd * fix stdout/stderr redirections in Lwt_daemon.daemonize * add Lwt_list.{map,iter}i{_s,_p} ===== 2.4.3 (2012-12-27) ===== * fix Lwt_ssl.{in,out}_channel_of_descr: shutdown and close the socket when the channel is closed ===== 2.4.2 (2012-09-28) ===== * fix the stub for Lwt_unix.readdir * change the default method for Lwt_glib.install (use the glib main loop by default: more portable) * ignore invalid file descriptors returned by glib (like the emulation of select in glib does) * use environment variables in discover.ml - use LIBRARY_PATH and C_INCLUDE_PATH for searching headers - allow to pass flags for a library in <LIB>_CLFAGS and <LIB>_LIBS * add Lwt_unix.on_signal_full ===== 2.4.1 (2012-08-22) ===== * Add Lwt_stream.on_terminate * Fix Lwt_gc * Fix stubs for get_credentials on *BSD ===== 2.4.0 (2012-07-16) ===== * Reimplement Lwt_stream - much simpler and more efficient - do not use Weak - add bounded push streams * Add Lwt.async * Add Lwt_preemptive.run_in_main * Implement Lwt_unix.get_credentials on MacOS X/OpenBSD * Ensure that on_cancel functions are executed first * Better implementation of Lwt.cancel with more tests * Simplify the API for unix jobs * Better handling of the master lock in libev stubs * Windows fixes/updates: - pass -lws2_32 instead of ws2_32.lib if building with mingw - fix a bug causing Lwt_unix.read/write to block when a socket is not readable/writable - port Lwt_process and Lwt_unix.system to Windows * Compatibility with OCaml 4.00: - add O_SHARE_DELETE to Lwt_unix.open_flag - add -package compiler-libs.toplevel for files using Toploop * Do not use module Sys for signal handling to avoid OCaml code to be called in a C thread * Fix Lwt_unix.wrap_syscall: try instead of Lwt.catch * Fix a dead-lock between lwt_unix_send_notification and lwt_unix_recv_notifications * Fix #277: add a function to return the Ssl.socket of a Lwt_ssl.socket * Fix problems with C libraries detection/linking ===== 2.3.2 (2011-11-04) ===== * Add location informations in logs: ** allow loggers to get the current location through local storage ** pass current location to logging functions ** pass the current location with the syntax extension * Add Lwt.on_termination * Add Lwt_unix.reinstall_signal_handler * Add Lwt_io.flush_all * Add assert_lwt keyword to the syntax extension * Add Lwt.wrap * Add Lwt_glib.iter and Lwt_glib.wakeup * OCaml 3.13 ready * Allow to compile without libev support * Fix bugs in Lwt_io * Better handling of forks * Fix many problems on Windows ===== 2.3.1 (2011-07-13) ===== * Fix building of documentation when using the tarball * Add Lwt_unix.fsync and Lwt_unix.fdatasync * Fix the stubs for Lwt_unix.send_msg when fd-passing is not available * Add -lwt-sequence-strict option to the syntax extension * Use a custom PRNG state for Lwt.choose and Lwt.pick * Fix a display glitch when starting the toplevel * Add Lwt_unix.fork which should now be used when one want to use Lwt in the child process * Better implementation of Lwt_unix.readlink and Lwt_unix.gethostbyname, which fixes compilation on Hurd * Add Lwt.wakeup_later and Lwt.wakeup_later_exn to be used when one need to do lot of nested wakeup, which fixes a buffer overflow in Lwt_mutex * Fix Lwt_unix.abort and Lwt_unix.close (threads was never wakeup) * Fix Lwt_throttle for correct timings * Fix subtle use of cancel ===== 2.3.0 (2011-04-12) ===== * Add an extensible system of engines to: ** allow the user to replace libev by another event system, such as select ** allow easier integration of external libraries supporting asynchronous operations * Lots of improvements for Windows: ** use the OCaml select instead of libev by default on Windows ** make asynchronous operations on non-socket file descriptors such as pipes to work ** make glib integration to work * Better use of engines in Lwt_unix: now events are cached to minimize the amount of calls to epoll_ctl * Use an eventfd when possible for notifications for faster delivery * Add modules: ** Lwt_sys: allow to test availability of extra features ** Lwt_react: replace Lwt_event and Lwt_signal * Allow to configure logging rules at runtime in Lwt_log * Add match_lwt and while_lwt to the syntax extension * Fixes: ** syntax extension: handle "lwt ... = ... in ..." at toplevel ** make the notification system fork-proof ** fix an issue with stubs not raising correctly exceptions ===== 2.2.1 (2011-01-26) ===== * Better interaction with Js_of_OCaml. * Add functions {{{Lwt.register_pause_notifier}}} and {{{Lwt.paused_count}}}. ===== 2.2.0 (2010-12-13) ===== * Bugfixes: ** Fix a bug with cancellable threads causing {{{Canceled}}} exceptions to be raised randomly ** Fix a fd-leak in Lwt_io.open_connection * {{{Lwt_unix}}} now use libev instead of select * Add thread local storage support to {{{Lwt}}} * Add backtrace support to {{{Lwt}}}. Now {{{Lwt}}} exceptions can be recorded by using the syntax extension with the {{{-lwt-debug}}} command line switch. * Allow blocking system calls to be executed in parallels * Change the type of many functions of {{{Lwt_unix}}}, which now return a {{{Lwt}}} thread * Add functions {{{Lwt_unix.readable}}} and {{{Lwt_unix.writable}}} * Add function {{{Lwt_io.is_busy}}} * Add functions {{{Lwt_event.delay}}} and {{{Lwt_signal.delay}}} * Add function {{{Lwt_term.render_update}}} * Add function {{{Lwt_ssl.embed_socket}}} * Add module {{{Lwt_bytes}}} defining operations on bigarrays instead of strings * Use bigarrays in Lwt_io instead of strings for the internal buffer. Lwt_io.make now takes a function that uses a bigarray. * Add module {{{Lwt_switch}}} ===== 2.1.1 (2010-06-13) ===== * Many bugfixes, including: ** buggy behaviour of cancellable threads ** file descriptor leakage in {{{Lwt_unix.accept_n}}} * Add {{{Lwt.nchoose}}} and {{{Lwt.npick}}} * Use {{{set_close_on_exec}}} for fds created by {{{Lwt_log}}} * Better implementation of lwtized react functions ===== 2.1.0 (2010-04-19) ===== * Rename {{{Lwt.select}}} to {{{Lwt.pick}}} * Removing module {{{Lwt_monitor}}} in favour of {{{Lwt_mutex}}} and new module {{{Lwt_condition}}} * More react helpers: ** {{{Lwt_event.next}}} ** {{{Lwt_event.limit}}} and {{{Lwt_signal.limit}}} ** {{{Lwt_event.from}}} * Adding function {{{Lwt_main.fast_yield}}} * Adding unit tests * Optimisation of {{{Lwt}}} * Adding module {{{Lwt_log}}} for logging * Adding a camlp4 filter for remmoving logging statement or inlining tests * Adding module {{{Lwt_daemon}}} * Adding function {{{Lwt_unix.recv_msg}}} and {{{Lwt_unix.send_msg}}} * Adding function {{{Lwt_unix.wait4}}} * Adding function {{{Lwt_io.establish_server}}} * Adding module {{{Lwt_list}}} * Enhancement in {{{Lwt_process}}}, it now support redirections and timeouts * Allow to use {{{select}}} on arbitrary high file descriptors * More commands and features in {{{Lwt_read_line}}}: ** Handle "undo" command ** New controllable read-lines instances ** More edition commands ** Completion as you type ** Backward search * Enhancement in {{{Lwt_term}}}: more drawing functions and allow to put the terminal into drawing mode * Optimisation of {{{Lwt_stream}}} * Optimisation of {{{Lwt_io.write_char}}} and {{{Lwt_io.read_char}}} * Bugfix of {{{Lwt_stream}}}: two parallel {{{Lwt_stream.get}}} returned the same value * Bugfix in {{{Lwt_unix.connect}}}: it returned immediately on EINPROGRESS * Bugfixes in {{{Lwt_glib}}}: file descriptors were not monitored correctly ===== 2.0.0 (2009-10-15) ===== * Adding modules: ** {{{Lwt_stream}}}: lwt-aware version of the {{{Stream}}} module ** {{{Lwt_gc}}} for using {{{finalise}}} without {{{Lwt_unix.run}}} ** {{{Lwt_io}}}: a new implementation of buffered channels with more features and better handling of concurrent access ** {{{Lwt_text}}}: implementation of text channels ** {{{Lwt_process}}}: helpers to spawn processes and communicate with them ** {{{Lwt_main}}} for abstracting the main loop and allowing replacement by a custom main loop ** {{{Lwt_glib}}} for integration into the glib main event loop ** {{{Lwt_term}}} for interaction with the terminal ** {{{Lwt_read_line}}} for interactive user input ** {{{Lwt_monitor}}}, {{{Lwt_mvar}}}: combined locks for synchronization with conditional variables for notification ** {{{Lwt_throttle}}} for limiting rate of execution (e.g. for authentication procedure) ** {{{Lwt_sequence}}}: mutable sequence of elements ** {{{Lwt_event}}}, {{{Lwt_signal}}}: helpers for reactive programming with lwt * Adding a syntax extension {{{pa_lwt}}}: ** handles anonymous bind {{{a >> b}}} ** adds syntactic sugar for catching errors (ticket #6) ** adds syntactic sugar for parallel let-binding construction ** adds syntactic sugar for for-like loops * Top-level integration: ** threads can runs while reading user input ** line editing support * New enhanced OCaml toplevel with some basic completion features * Adding C stubs to reimplement {{{Unix.read}}} and {{{Unix.write}}} with assumption of non-blocking behaviour * Adding more functions/helpers in {{{Lwt}}} * Fixing memory leaks in {{{Lwt.choose}}} * Bugfix in {{{Lwt_chan.close_*}}} (ticket #66) * Separate the type of threads (covariant) from the type of thread wakeners (contravariant); the type of many functions related to {{{Lwt.wait}}} has been changed * Add cancelable threads * Unix-dependent part is now put in its own archive and findlib package. ===== 1.1.0 (2008-06-25) ===== * Adding module {{{Lwt_pool}}} for creating pools (for example pools of connections) * Adding a few functions in {{{Lwt_chan}}} * Fixing bugs in {{{Lwt_util.map_serial}}} and {{{Lwt_util.iter_serial}}} * Putting {{{Lwt_preemptive}}}, {{{Lwt_lib}}} and {{{Lwt_ssl}}} in separate libraries and findlib subpackages so that lwt.cma depends only on unix.cma. ===== 1.0.0 (and before) ===== * See Ocsigen changelog
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