lwtversion
Promises and event-driven I/O
A promise is a value that may become determined in the future.
Lwt provides typed, composable promises. Promises that are resolved by I/O are resolved by Lwt in parallel.
Meanwhile, OCaml code, including code creating and waiting on promises, runs in a single thread by default. This reduces the need for locks or other synchronization primitives. Code can be run in parallel on an opt-in basis.
| Authors | Jérôme Vouillon and Jérémie Dimino |
|---|---|
| License | MIT |
| Published | |
| Homepage | https://github.com/ocsigen/lwt |
| Issue Tracker | https://github.com/ocsigen/lwt/issues |
| Maintainers | Raphaël Proust <code@bnwr.net> and Anton Bachin <antonbachin@yahoo.com> |
| Available | os-family != "windows" | "ocaml-version" < "5.2" |
| Dependencies |
|
| Optional dependencies | |
| Source [http] | https://github.com/ocsigen/lwt/archive/refs/tags/5.8.0.tar.gz md5=2682558f405ab7c8638eeb16d0f9f46f sha512=7f6548a1b1dbfdbc98d9352151ca7be97fa2ab63dbcc429208ce8d08308eee13f7fce31e0cca53f8880233959a60212d622270dd51bf164c3ee272f179769bd9 |
| Edit | https://github.com/ocaml/opam-repository/tree/master/packages/lwt/lwt.5.8.0/opam |
Required by
- 0install>=2.15.1
- aches-lwt
- activitypub
- albatross
- alcotest-lwt
- alcotest-mirage
- ambient-context-lwt
- amqp-clientwith-test & (>=0.9.0 & <1.0.2 | >=1.1.0)
- amqp-client-lwt>=2.0.1
- angstrom-lwt-unix>=0.11.0
- anthill
- anycache-lwt
- arakoon<1.8.6 | >=1.8.8
- archi-lwt
- arp>=2.3.1
- arp-mirage>=2.2.1
- awa-lwt
- awa-mirage
- aws-lwt
- aws-s3-lwt<4.4.0 | >=4.8.1
- awsm-lwt
- azure-cosmos-db
- baardskeerder
- balancer
- bap<1.0.0
- bap-server<0.2.0
- bastet_lwt
- bimage-lwt
- biocaml=0.4.0
- bistro>=0.4.0
- brozipbuild
- builder
- builder-web
- bun>=0.3.3
- c3
- calculon
- caldav
- camltc=0.9.5 | >=0.9.7.0
- canary
- capnp-rpc-lwt
- capnp-rpc-unix>=0.9.0
- caqti-lwt>=0.11.0
- caqti-mirage
- cartonwith-test
- carton-git
- carton-lwt
- cf-lwt
- chamelon
- chamelon-unix
- chamo>=3.0
- channel
- charrua-client>=1.3.0
- charrua-client-lwt
- charrua-client-mirage
- charrua-core<0.3
- charrua-unix>=0.3 & !=0.10
- clz
- cmdtui-lambda-term
- coap
- coap-server-lwt
- coclobas
- cohttp-curl-lwt
- cohttp-lwt
- cohttp-lwt-jsoo
- cohttp-lwt-unix>=1.1.1
- cohttp-lwt-unix-nossl
- cohttp-lwt-unix-ssl
- cohttp-mirage
- cohttp-server-lwt-unix
- comby
- comby-semantic
- conan-lwt
- conduit-lwt
- conduit-lwt-unix
- cowabloga>=0.2.2
- crunchwith-test & >=2.0.0
- cstruct-lwt
- csv-lwt
- csvprovider
- ctypeswith-test & >=0.15.0 & <0.21.1
- ctypes-foreignwith-test & >=0.21.1
- current
- current-albatross-deployer
- current_docker
- current_examples
- current_git
- current_github
- current_gitlab
- current_ocluster
- current_rpc>=0.4
- current_slack
- current_web
- dap
- data-encoding<0.1.1
- datakit
- datakit-bridge-github
- datakit-bridge-local-git
- datakit-ci
- datakit-client=0.11.0
- datakit-github
- devkit>=1.2
- dht<0.2.0
- distributed-lwt
- dkim-bin>=0.6.0
- dkim-mirage
- DkSDKFFIOCaml_Std
- dlm
- dnswith-test & >=0.19.1 & <0.20.1
- dns-certify
- dns-cli>=4.6.3
- dns-client<7.0.0
- dns-client-lwt
- dns-client-mirage
- dns-forward>=0.9.0
- dns-forward-lwt-unix
- dns-lwt
- dns-mirage
- dns-resolver
- dns-server
- dns-stub
- dnssd
- docker_hub
- docteur>=0.0.2
- docteur-solo5
- docteur-unix>=0.0.5
- doi2bib
- dream
- dream-httpaf
- dream-pure
- dream-serve
- dropbox
- dune-rpc-lwt>=3.7.0 & !=3.10.0
- dune_watch
- earlybird
- elasticsearch-cli>=0.4
- equinoxe
- eris-lwt
- ethernet
- ez_api>=1.2.0
- ezcurl-lwt
- ezirmin
- ezjs_min<0.2
- ezjsonmwith-test & >=0.4.2 & <0.5.0
- ezjsonm-lwt
- ezrestowith-test
- ezresto-directory>=0.5
- faraday-lwt
- faraday-lwt-unix>=0.6.0
- fat-filesystem>=0.12.0
- fiber-lwt
- flowtype>=0.72.0
- frenetic<2.0.0
- fsevents-lwt
- fswatch_lwt
- fuseau-lwt
- gamepad
- gdb
- gdbprofiler>=0.3
- git!=1.4.3 & !=1.7.2
- git-cohttp
- git-cohttp-mirage
- git-cohttp-unix
- git-mirage>=3.0.0
- git-paf
- git-unix=1.11.1 | >=3.0.0
- github
- github-hooks<0.2.0 | >=0.4.0
- github-unix>=4.4.0
- gitlab-unix
- gitlab_pipeline_notifier
- gluten-lwt
- gluten-lwt-unix<0.4.0
- gluten-mirage<0.4.0
- graphql-lwt
- gremlin
- grpc-lwt
- guardian
- gufo
- h1with-test
- h1-lwt-unix
- h2-lwt
- h2-lwt-unix<0.10.0
- h2-mirage
- happy-eyeballs-lwt
- happy-eyeballs-mirage
- hardcaml<1.1.0
- hardcaml-examples>=0.3.0
- hardcaml-framework
- hidapi-lwt
- hiredis!=0.4
- hl_yamlwith-test
- hockmd
- horned_worm<0.3.1
- http-lwt-client
- http-mirage-client
- http-multipart-formdata>=2.0.0 & <3.0.0
- http2https
- httpaf-lwt-unix
- httpun-lwt
- httpun-mirage
- httpun-ws-lwt
- hvsock>=1.0.2
- i3ipc>=0.1.4
- imaplet-lwt
- influxdb-lwt
- inotifywith-test & >=2.4
- inquire<0.3.0
- interface-prime-lwt
- iocaml<0.4.6
- iocaml-kernel>=0.4.3 & <0.4.6
- iocamljs-kernel
- ip2location
- ip2locationio
- ip2whois
- ipv6-multicast-lwt
- irc-client-lwt
- irc-client-lwt-ssl
- irc-client-tls
- irmin<0.9.6 | =0.9.10 | >=0.11.0
- irmin-bench
- irmin-chunk
- irmin-cli
- irmin-client
- irmin-containers
- irmin-fs>=2.3.0
- irmin-git>=2.3.0
- irmin-graphql>=2.3.0
- irmin-http>=2.3.0
- irmin-indexeddb
- irmin-layers
- irmin-mem>=2.3.0
- irmin-mirage-git>=2.3.0
- irmin-mirage-graphql>=2.3.0
- irmin-pack
- irmin-server
- irmin-test>=2.3.0
- irmin-unix>=2.3.0
- irmin-watcher>=0.3.0
- jerboa
- jitsu
- joolog
- josewith-test & <0.9.0
- js_of_ocaml<2.5
- js_of_ocaml-lwt>=3.5.0
- jsoo_broadcastchannel
- jsoo_router
- jsoo_storage
- jupyter>=2.3.0
- jupyter-kernel>=0.4
- kafka>=0.3 & <0.5
- kafka_lwt
- kappa-library
- kewith-test & >=0.5
- ketrew>=3.2.0
- kinetic-client<0.0.3 | >=0.0.9
- kubecaml
- lablqmlwith-test & <0.6
- lambda-runtime
- lambda-term>=1.13
- lambda_streams_lwt
- launchd
- ldp
- learn-ocaml>=0.13.0
- learn-ocaml-client>=0.13.0
- ledgerwallet>=0.4.0
- letsencrypt
- letsencrypt-app
- letsencrypt-dns
- letters
- libres3
- links!=0.9
- linol-lwt
- llama
- lru_cachewith-test & <v0.16.0
- lwt-binio<0.2.0
- lwt-canceler
- lwt-dllistwith-test
- lwt-exit
- lwt-parallel>=1.0.0
- lwt-pipe
- lwt-pipeline
- lwt-watcher
- lwt-zmq<1.0.0
- lwt_camlp4
- lwt_domain
- lwt_eio
- lwt_glib>=1.0.1
- lwt_log>=1.1.0
- lwt_ppx
- lwt_ppx_let
- lwt_react>=1.0.1
- lwt_ssl>=1.0.1
- mariadb<0.5.1
- markupwith-test & =0.7.6
- markup-lwt
- mdxwith-test
- mechaml
- mehari-lwt-unix
- mehari-mirage
- memtrace-mirage
- metrics-influx
- metrics-lwt
- metrics-mirage
- metrics-unix
- mimic
- mindstorm-lwt
- mirage>=0.4.1 & !=0.6.1 & <0.8.0 | >=0.10.0 & <2.7.0
- mirage-block<1.0.0 | >=2.0.0
- mirage-block-ccm
- mirage-block-combinators
- mirage-block-lwt
- mirage-block-partition
- mirage-block-ramdisk
- mirage-block-solo5
- mirage-block-unix<2.3.0 | =2.8.2 | >=2.13.0
- mirage-block-xen
- mirage-bootvar-solo5>=0.2.0
- mirage-bootvar-unix
- mirage-bootvar-xen>=0.4.0
- mirage-channel>=4.0.0
- mirage-channel-lwt
- mirage-clock-freestanding<3.0.0
- mirage-clock-lwt
- mirage-clock-unix>=1.3.0 & <3.0.0
- mirage-console>=3.0.0
- mirage-console-lwt
- mirage-console-solo5>=0.2.0
- mirage-console-unix>=2.2.1
- mirage-console-xen>=5.0.0
- mirage-console-xen-backend
- mirage-console-xen-cli
- mirage-crypto-entropy
- mirage-crypto-rng>=0.7.0 & <0.11.0
- mirage-crypto-rng-lwt
- mirage-crypto-rng-mirage>=0.8.8
- mirage-device>=2.0.0
- mirage-dns<3.0.0
- mirage-entropy
- mirage-flow>=1.0.3 & <1.2.0 | >=2.0.0
- mirage-flow-combinators
- mirage-flow-lwt<1.3.0 | >=1.5.0
- mirage-flow-rawlink
- mirage-flow-unix>=1.3.0
- mirage-fs>=3.0.0
- mirage-fs-lwt
- mirage-fs-unix<1.1.1 | >=1.3.0
- mirage-http
- mirage-http-unix
- mirage-http-xen
- mirage-kv>=3.0.0
- mirage-kv-lwt
- mirage-kv-unix
- mirage-logswith-test & !=0.3.0
- mirage-natwith-test & <3.0.0
- mirage-net>=3.0.1
- mirage-net-fd
- mirage-net-lwt
- mirage-net-macosx
- mirage-net-solo5
- mirage-net-unix>=2.2.0
- mirage-net-xen
- mirage-os-shim>=3.0.0
- mirage-profile
- mirage-protocols>=4.0.0 & <8.0.0
- mirage-protocols-lwt
- mirage-qubes<0.2 | >=0.4
- mirage-qubes-ipv4
- mirage-random-stdlib>=0.1.0
- mirage-runtime>=3.7.0
- mirage-solo5
- mirage-stack>=2.0.0 & <4.0.0
- mirage-stack-lwt
- mirage-time>=2.0.0
- mirage-time-lwt
- mirage-time-unix
- mirage-types-lwt<3.7.1
- mirage-unix>=3.0.0
- mirage-vnetif
- mirage-vnetif-stack
- mirage-www>=1.1.0
- mirage-xen
- mirror
- monorobot
- moonpool-lwt
- mqtt>=0.0.2
- mrmimewith-test & >=0.5.0
- multipart-form-data>=0.2.0
- multipart_form>=0.2.0 & <0.4.0
- multipart_form-cohttp-lwt<0.6.0
- multipart_form-lwt
- mwt
- naboris
- nanomsgwith-test
- nbd=2.1.1 | >=4.0.3
- nbd-tool
- nbd-unix
- netchannel
- nocrypto>=0.5.4
- nottui-lwt
- nproc
- nsq>=0.4.0
- obrowser
- obuilder
- obus>=1.2.1
- ocaml-variantspost & >=4.00.1+mirage-unix & <4.00.1+open-types
- ocluster
- ocluster-api
- ocluster-worker
- ocplib-concur
- ocplib-resto
- ocsigenserver>=2.10
- ocsipersist
- ocsipersist-dbm
- ocsipersist-lib
- ocsipersist-pgsql
- ocsipersist-sqlite
- octez-distributed-lwt-internal
- octez-internal-libs
- octez-l2-libs
- octez-libs
- octez-proto-libswith-test
- octez-protocol-compiler
- octez-proxy-server
- octez-rpc-process
- octez-shell-libswith-test
- octez-smart-rollup-wasm-benchmark-lib
- odocwith-test & >=2.0.0 & <2.1.0
- oframl
- ojquery
- ojs-base
- ojs_base
- omigrate
- oneffs
- opam-sync-github-prsbuild
- openflow<0.2.0
- opentelemetry-client-cohttp-lwt
- opentelemetry-cohttp-lwt>=0.4
- opentelemetry-lwt
- opium>=0.11.0 & !=0.16.0
- opium-graphql
- opium_kernel
- opomodoro
- order-i3-xfce
- ordma>=0.0.3
- oskel>=0.3.0
- ounit-lwt<2.2.0
- ounit2-lwt
- owork
- ox<1.1.0
- ozulip
- pafwith-test
- paf-cohttpwith-test
- passage
- pcap-formatwith-test & >=0.3.3 & <0.5.0
- petrol
- pgx_lwt
- pgx_lwt_mirage
- pgx_lwt_unix<2.0
- piaf<0.2.0
- picos>=0.3.0 & <0.5.0
- picos_lwt
- picos_meta
- plebeia>=2.0.0
- plist-xml-lwt
- plotkicadsch>=0.4.0
- ppx_deferwith-test & >=0.4.0
- ppx_deriving_rpcwith-test
- ppx_json_types
- ppx_netblobbuild
- ppx_rapper_lwt
- ppx_sqlexprwith-test
- proc-smaps
- prof_spacetime
- prometheus
- prometheus-app
- promise_jsoo_lwt
- protocol-9p>=0.10.0
- protocol-9p-unix
- qcow>=0.8.1
- qcow-format<0.3
- qcow-tool
- qfs=0.5 | >=0.7
- quests
- rawlink>=1.0 & <2.1
- rawlink-lwt
- rdf_json_ld
- rdf_lwt
- redis-lwt
- reparse-lwt
- reparse-lwt-unix
- resource-pooling>=0.3.2
- resp
- resp-mirage>=0.10.0
- resp-unix>=0.10.0
- restowith-test
- resto-cohttp-client>=0.4
- resto-cohttp-self-serving-client
- resto-cohttp-server>=0.4 & <0.6 | >=0.9
- resto-directory>=0.4
- riak
- ringo-lwt
- river
- rock
- rpc>=1.5.1 & <7.1.0
- rpclib-js
- rpclib-lwt
- sanddb
- scgi
- sendmail-lwt
- sendmail-mirage
- serial
- server-reason-react
- session-cohttp-lwt
- session-cookie-lwt
- session-postgresql-lwt>=0.4.1
- sessions
- shared-block-ring<2.3.0 | >=3.0.0
- shared-memory-ring>=1.2.0 & <2.0.0
- shared-memory-ring-lwt
- sherlodoc
- sihl<0.2.0
- slack
- slacko
- slipshow
- socket-daemon<0.3.0
- speed
- spin<0.8.0
- spoke
- spotify-web-api<0.2.1
- sqlexpr=0.7.1 | >=0.9.0
- statsd-client
- stk
- stog>=0.16.0
- syguslib-utils
- syndicwith-test & >=1.4 & <1.6.0
- SZXX<4.0.0
- tar-formatwith-test & >=0.4.1
- tar-mirage
- tar-unix
- tcpip>=3.1.1 & <3.4.1 | >=4.1.0
- teash
- telegraml
- terminus
- tezos-base>=13.0
- tezos-clic>=13.0
- tezos-crypto>=13.0
- tezos-crypto-dal
- tezos-error-monad>=8.0 & <9.0 | >=13.0
- tezos-lwt-result-stdlib>=9.0
- tezos-p2p>=11.0 & <13.0
- tezos-protocol-compiler>=13.0
- tezos-protocol-environmentwith-test & >=13.0
- tezos-proxywith-test & >=17.1
- tezos-proxy-server
- tezos-stdlib
- tezos-stdlib-unix>=8.0 & <9.0 | >=13.0
- tezos-test-helpers>=12.0
- tezos-wasmer
- tezos-webassembly-interpreter-extra
- tezt
- tftp
- themoviedb
- tidy_email
- timmy-lwt
- tls=0.10.1 | >=0.10.6 & <0.16.0
- tls-lwt
- tls-mirage
- transmission-rpc
- tube>=4.3.0
- tuntapwith-test & (>=1.0.0 & <1.7.0 | >=2.0.0)
- twirp_cohttp_lwt_unix
- typerex-lldb
- u2fdev
- uringwith-test
- uspf
- uspf-lwt
- utop>=1.4.0
- uwt>=0.3.0
- vchan>=0.9.7 & <2.0.0 | >=2.0.3
- vchan-unix
- vchan-xen
- vercel
- vhd-format>=0.7.0 & <0.8.0
- vhd-format-lwt>=0.12.0
- vhd-tool<0.12.0
- vmnet>=1.3.2
- vpnkit>=0.2.0
- vue-jsoo<0.3
- wayland<2.0
- webauthndev
- websocket<2.3
- xe-unikernel-upload
- xen-api-client<0.9.14
- xen-block-driver
- xen-evtchn<1.0.6 | >=2.0.0
- xen-evtchn-unix
- xen-gnt>=2.2.3
- xen-gnt-unix>=4.0.2
- xenctrl<0.9.29 | >=0.9.32
- xenstore>=1.3.0
- xenstore_transport>=1.0.0
- xentropyd
- xlsx2csv
- yocaml_git
- yocaml_unix<2.0.0
- yurt<0.3
- zarr-lwt
- zmq-lwt>=5.2.1
Optionally used by
- amqp-client>=1.0.2 & <2.0.0
- angstrom<0.6.0
- anycache<0.7.4
- arp<1.0.0
- aws>=1.0.0 & <1.2
- biocaml>=0.5.0
- bitcoin>=1.1 & <2.0
- bookaml
- cohttp!=0.11.1 & <0.99.0
- conduit<1.0.0
- containers>=0.6 & <0.13
- coq-lsp>=0.1.9+8.17
- cstruct>=0.7.0 & <3.0.0
- csv=1.6
- d3build & <0.2.0
- debian-formats<0.1.2
- dns>=0.5.0 & <0.6.1 | >=0.19.1 & <1.0.0
- dnscurve
- exenum>=0.7
- ezjs_extension
- ezjs_fetch>=0.2
- ezjs_min>=0.2
- ezjsonm>=0.2.0 & <0.5.0
- faraday<0.3.0
- future
- hardcaml=1.2.0
- hxd>=0.3.0
- imap<1.0
- inotify>=2.0
- irc-client<0.6.0
- kafka<0.3
- logs>=0.5.0
- logs-syslog
- markup<0.8.0
- mirage-types>=1.1.0 & <3.0.0
- mongo
- nanomsg
- nocrypto>=0.4.0 & <0.5.4
- notty
- ocurl>=0.7.0
- openflow=0.2.0
- osc<0.2.0
- osx-acl
- osx-attr
- osx-cf
- osx-fsevents
- osx-membership
- osx-mount
- osx-xattr
- raygun4ocaml
- rdf>=0.9.0 & <0.13.0
- redis<0.3.4
- sendmsg
- session<0.4.0
- shcaml>=0.2.0
- smtp
- stog>=0.13.0 & <0.16.0
- tar-format>=0.2.0
- tls<0.10.1
- unix-dirent
- unix-fcntl>=0.3.0
- unix-sys-stat>=0.4.0
- unix-unistd
- websocket>=2.3 & <2.10
