package lwt

  1. Overview
  2. Docs
Promises and event-driven I/O

Install

Dune Dependency

github.com Readme MIT License Edit opam file Versions (25)

Authors

  1. J
    Jérôme Vouillon
  2. J
    Jérémie Dimino

Maintainers

  1. R
    Raphaël Proust <code@bnwr.net>
  2. Anton Bachin

Sources

5.6.0.tar.gz
md5=e63979ee40a80d5b9e9e5545f33323b4
sha512=d616389bc9e0da11f25843ab7541ac2d40c9543700a89455f14115b339bbe58cef2b8acf0ae97fd54e15a4cb93149cfe1ebfda301aa93933045f76b7d9344160

Description

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.

Published: 24 Jun 2022

Dependencies (5)

  1. ocplib-endian
  2. ocaml >= "4.08" & < "5.1"
  3. dune-configurator
  4. dune >= "1.8.0"
  5. cppo build & >= "1.1.0"

Dev Dependencies (1)

  1. ocamlfind dev & >= "1.7.3-1"

  1. 0install >= "2.15.1"
  2. aches-lwt
  3. activitypub
  4. albatross
  5. alcotest-lwt
  6. alcotest-mirage
  7. ambient-context-lwt
  8. amqp-client >= "1.1.0"
  9. amqp-client-lwt
  10. angstrom-lwt-unix >= "0.11.0"
  11. anthill
  12. anycache-lwt
  13. archi-lwt
  14. arp >= "2.3.1"
  15. arp-mirage >= "2.2.1"
  16. awa-lwt
  17. awa-mirage
  18. aws-lwt
  19. aws-s3-lwt
  20. awsm-lwt
  21. azure-cosmos-db
  22. balancer
  23. bastet_lwt
  24. bimage-lwt
  25. bistro
  26. brisk-reconciler
  27. brozip
  28. builder
  29. builder-web < "0.2.0"
  30. bun >= "0.3.3"
  31. cachet-lwt
  32. calculon
  33. caldav
  34. camltc
  35. canary
  36. capnp-rpc-lwt < "1.2.3"
  37. capnp-rpc-unix >= "0.9.0" & < "1.2.3"
  38. caqti-lwt
  39. caqti-mirage
  40. carton < "1.0.0"
  41. carton-git < "0.7.2"
  42. carton-lwt
  43. catala-format >= "0.2.0"
  44. cf-lwt
  45. chamelon
  46. chamelon-unix
  47. chamo
  48. charrua-client >= "1.3.0"
  49. charrua-client-lwt
  50. charrua-client-mirage
  51. charrua-unix
  52. clz
  53. cmdtui-lambda-term
  54. cohttp-curl-lwt
  55. cohttp-lwt < "6.0.0"
  56. cohttp-lwt-jsoo != "6.1.0"
  57. cohttp-lwt-unix
  58. cohttp-mirage
  59. cohttp-server-lwt-unix
  60. comby
  61. comby-semantic
  62. conan-lwt
  63. conduit-lwt < "7.0.0"
  64. conduit-lwt-unix < "7.0.0"
  65. cowabloga
  66. crunch >= "2.0.0"
  67. cstruct-lwt
  68. csv-lwt
  69. ctypes >= "0.15.0" & < "0.21.1"
  70. ctypes-foreign >= "0.21.1"
  71. curl_lwt
  72. current < "0.6.4"
  73. current-albatross-deployer
  74. current_docker < "0.6.4"
  75. current_examples < "0.6.4"
  76. current_git < "0.6.4"
  77. current_github < "0.6.4"
  78. current_gitlab < "0.6.4"
  79. current_ocluster < "0.2"
  80. current_rpc >= "0.4" & < "0.6.4"
  81. current_slack < "0.6.4"
  82. current_web < "0.6.4"
  83. DkSDKFFIOCaml_Std
  84. dap
  85. data-encoding < "0.1.1"
  86. devkit >= "1.2"
  87. distributed-lwt
  88. dkim-bin >= "0.6.0" & < "0.8.0"
  89. dkim-lwt-unix
  90. dkim-mirage
  91. dlm
  92. dns-certify
  93. dns-cli >= "4.6.3"
  94. dns-client < "7.0.0"
  95. dns-client-lwt
  96. dns-client-mirage
  97. dns-forward
  98. dns-forward-lwt-unix
  99. dns-lwt
  100. dns-mirage
  101. dns-resolver
  102. dns-server
  103. dns-stub
  104. dnssd
  105. docker_hub
  106. docteur >= "0.0.2"
  107. docteur-solo5
  108. docteur-unix >= "0.0.5"
  109. doi2bib
  110. dream
  111. dream-httpaf
  112. dream-pure
  113. dream-serve
  114. dropbox
  115. dune >= "3.17.0"
  116. dune-rpc-lwt
  117. earlybird
  118. elasticsearch-cli
  119. emoji >= "2.0.0"
  120. equinoxe
  121. ethernet
  122. ez_api >= "1.2.0"
  123. ezcurl-lwt
  124. ezjs_min < "0.2"
  125. ezjsonm-lwt
  126. ezresto
  127. ezresto-directory >= "0.5"
  128. faraday-lwt
  129. faraday-lwt-unix
  130. fat-filesystem
  131. fiber-lwt
  132. fsevents-lwt
  133. fswatch_lwt
  134. fuseau-lwt
  135. gdbprofiler
  136. git
  137. git-cohttp
  138. git-cohttp-mirage
  139. git-cohttp-unix
  140. git-mirage >= "3.0.0"
  141. git-paf
  142. git-unix >= "3.0.0"
  143. github
  144. github-hooks
  145. github-unix >= "4.4.0"
  146. gitlab-unix
  147. gitlab_pipeline_notifier
  148. gluten-lwt
  149. gluten-lwt-unix < "0.4.0"
  150. gluten-mirage < "0.4.0"
  151. graphql-lwt
  152. gremlin
  153. grpc-lwt
  154. gufo
  155. h1
  156. h1-lwt-unix
  157. h2-lwt
  158. h2-lwt-unix < "0.10.0"
  159. h2-mirage
  160. happy-eyeballs-lwt
  161. happy-eyeballs-mirage
  162. hiredis >= "0.6"
  163. hl_yaml
  164. hockmd
  165. http-lwt-client
  166. http-mirage-client
  167. http-multipart-formdata >= "2.0.0" & < "3.0.0"
  168. httpaf-lwt-unix
  169. httpun-lwt
  170. httpun-mirage
  171. httpun-ws-lwt
  172. hvsock
  173. i3ipc
  174. influxdb-lwt
  175. inotify >= "2.4"
  176. inquire < "0.3.0"
  177. interface-prime-lwt
  178. ip2location
  179. ip2locationio
  180. ip2whois
  181. ipv6-multicast-lwt
  182. irc-client-lwt
  183. irc-client-lwt-ssl
  184. irc-client-tls
  185. irmin
  186. irmin-bench
  187. irmin-chunk
  188. irmin-cli
  189. irmin-containers
  190. irmin-fs >= "2.3.0"
  191. irmin-git >= "2.3.0"
  192. irmin-graphql >= "2.3.0"
  193. irmin-http >= "2.3.0"
  194. irmin-indexeddb
  195. irmin-layers
  196. irmin-mem >= "2.3.0"
  197. irmin-mirage-git >= "2.3.0"
  198. irmin-mirage-graphql >= "2.3.0"
  199. irmin-pack
  200. irmin-server
  201. irmin-test >= "2.3.0"
  202. irmin-unix >= "2.3.0"
  203. irmin-watcher
  204. joolog
  205. jose < "0.9.0"
  206. js_of_ocaml-lwt >= "3.5.0"
  207. jsoo_broadcastchannel
  208. jsoo_storage
  209. jupyter
  210. jupyter-kernel
  211. kafka < "0.5"
  212. kafka_lwt
  213. kappa-library
  214. ke >= "0.5"
  215. kinetic-client
  216. kubecaml
  217. lablqml < "0.6"
  218. lambda-runtime
  219. lambda-term
  220. lambda_streams_lwt
  221. launchd
  222. ldp
  223. learn-ocaml
  224. learn-ocaml-client
  225. letsencrypt
  226. letsencrypt-app
  227. letsencrypt-dns
  228. letters
  229. links >= "0.9.1"
  230. linol-lwt
  231. llama
  232. lru_cache
  233. lwt-canceler
  234. lwt-dllist
  235. lwt-exit
  236. lwt-parallel
  237. lwt-pipe
  238. lwt-pipeline
  239. lwt-watcher
  240. lwt_camlp4
  241. lwt_domain
  242. lwt_eio < "0.4"
  243. lwt_glib
  244. lwt_log
  245. lwt_ppx < "5.8.0"
  246. lwt_react
  247. lwt_retry
  248. lwt_ssl
  249. mariadb >= "1.2.0"
  250. markup = "0.7.6"
  251. markup-lwt
  252. mdx
  253. mechaml
  254. memtrace-mirage
  255. metrics-influx
  256. metrics-lwt
  257. metrics-mirage
  258. metrics-unix
  259. mimic
  260. mindstorm-lwt
  261. mirage < "3.1.1"
  262. mirage-block >= "2.0.1"
  263. mirage-block-ccm
  264. mirage-block-combinators
  265. mirage-block-lwt
  266. mirage-block-partition
  267. mirage-block-ramdisk
  268. mirage-block-solo5
  269. mirage-block-unix < "2.8.3" | >= "2.13.0"
  270. mirage-block-xen
  271. mirage-bootvar-solo5
  272. mirage-bootvar-unix
  273. mirage-bootvar-xen >= "0.4.0"
  274. mirage-channel >= "4.0.1"
  275. mirage-channel-lwt
  276. mirage-clock-freestanding < "3.0.1"
  277. mirage-clock-lwt
  278. mirage-clock-unix >= "1.3.0" & < "3.0.1"
  279. mirage-console >= "3.0.2"
  280. mirage-console-lwt
  281. mirage-console-solo5
  282. mirage-console-unix
  283. mirage-console-xen >= "5.0.0"
  284. mirage-console-xen-backend
  285. mirage-crypto-entropy
  286. mirage-crypto-rng >= "0.8.0" & < "0.11.0"
  287. mirage-crypto-rng-lwt
  288. mirage-crypto-rng-mirage >= "0.8.8"
  289. mirage-device >= "2.0.0"
  290. mirage-entropy
  291. mirage-flow >= "2.0.1"
  292. mirage-flow-combinators
  293. mirage-flow-lwt < "1.3.0" | >= "1.5.0"
  294. mirage-flow-rawlink
  295. mirage-flow-unix >= "1.3.0"
  296. mirage-fs >= "3.0.1"
  297. mirage-fs-lwt
  298. mirage-fs-unix
  299. mirage-kv >= "3.0.1"
  300. mirage-kv-lwt
  301. mirage-kv-unix < "3.0.1"
  302. mirage-logs != "0.3.0" & < "3.0.0"
  303. mirage-nat < "3.0.0"
  304. mirage-net >= "3.0.1"
  305. mirage-net-fd
  306. mirage-net-lwt
  307. mirage-net-macosx
  308. mirage-net-solo5
  309. mirage-net-unix
  310. mirage-net-xen
  311. mirage-os-shim
  312. mirage-profile
  313. mirage-protocols >= "4.0.1" & < "8.0.0"
  314. mirage-protocols-lwt
  315. mirage-qubes < "0.9.5"
  316. mirage-qubes-ipv4 < "0.9.5"
  317. mirage-random-stdlib >= "0.1.0"
  318. mirage-runtime >= "3.7.0"
  319. mirage-sleep
  320. mirage-solo5
  321. mirage-stack >= "2.0.1" & < "4.0.0"
  322. mirage-stack-lwt
  323. mirage-time >= "2.0.1"
  324. mirage-time-lwt
  325. mirage-time-unix
  326. mirage-types-lwt < "3.7.1"
  327. mirage-unix
  328. mirage-vnetif
  329. mirage-vnetif-stack
  330. mirage-xen
  331. monorobot
  332. moonpool-lwt
  333. mrmime >= "0.5.0"
  334. multipart-form-data
  335. multipart_form >= "0.2.0" & < "0.4.0"
  336. multipart_form-cohttp-lwt < "0.6.0"
  337. multipart_form-lwt
  338. mwt
  339. naboris
  340. nbd >= "4.0.3"
  341. nbd-tool
  342. nbd-unix
  343. netchannel
  344. nocrypto
  345. nottui-lwt
  346. nproc
  347. nsq
  348. obuilder < "0.5"
  349. obus >= "1.2.1"
  350. ocaml-variants >= "4.00.1+mirage-unix" & < "4.00.1+open-types"
  351. ocluster < "0.2"
  352. ocluster-api < "0.2"
  353. ocplib-resto
  354. ocsigen-start >= "4.1.0" & < "4.7.0"
  355. ocsigenserver
  356. ocsipersist
  357. ocsipersist-dbm
  358. ocsipersist-lib
  359. ocsipersist-pgsql
  360. ocsipersist-sqlite
  361. octez-distributed-lwt-internal < "19.0"
  362. octez-l2-libs < "19.0"
  363. octez-libs < "19.0"
  364. octez-proto-libs < "19.0"
  365. octez-protocol-compiler < "19.0"
  366. octez-proxy-server < "19.0"
  367. octez-shell-libs < "19.0"
  368. octez-smart-rollup-wasm-benchmark-lib
  369. odoc >= "2.0.0" & < "2.1.0"
  370. oframl
  371. ojs-base
  372. ojs_base
  373. omigrate
  374. oneffs
  375. opam-compiler < "0.2.0"
  376. opentelemetry-client-cohttp-lwt
  377. opentelemetry-cohttp-lwt >= "0.4"
  378. opentelemetry-lwt
  379. opium
  380. opium-graphql
  381. opium_kernel
  382. opomodoro
  383. order-i3-xfce
  384. ordma
  385. oskel >= "0.3.0"
  386. ounit-lwt < "2.2.0"
  387. ounit2-lwt
  388. owork
  389. ozulip
  390. paf
  391. paf-cohttp
  392. passage
  393. pcap-format < "0.5.2"
  394. petrol
  395. pgx_lwt
  396. pgx_lwt_mirage
  397. pgx_lwt_unix < "2.0"
  398. piaf < "0.2.0"
  399. plebeia >= "2.0.0"
  400. plist-xml-lwt
  401. plotkicadsch
  402. ppx_defer >= "0.4.0"
  403. ppx_deriving_rpc
  404. ppx_rapper_lwt
  405. proc-smaps
  406. prof_spacetime
  407. prometheus
  408. prometheus-app
  409. promise_jsoo_lwt
  410. protocol-9p
  411. protocol-9p-unix
  412. qcow
  413. qcow-stream
  414. qcow-tool
  415. qcow-types
  416. qfs >= "0.5"
  417. quests
  418. rawlink < "2.1"
  419. rawlink-lwt
  420. rdf_json_ld < "1.0.0"
  421. rdf_lwt < "1.0.0"
  422. redis-lwt
  423. reparse-lwt
  424. reparse-lwt-unix
  425. resource-pooling
  426. resp
  427. resp-mirage >= "0.10.0"
  428. resp-unix >= "0.10.0"
  429. resto
  430. resto-cohttp-client >= "0.4"
  431. resto-cohttp-self-serving-client
  432. resto-cohttp-server >= "0.4" & < "0.6" | >= "0.9"
  433. resto-directory >= "0.4"
  434. riak
  435. ringo-lwt
  436. river
  437. rock
  438. rpc < "7.1.0"
  439. rpclib-js
  440. rpclib-lwt
  441. SZXX < "4.0.0"
  442. sanddb
  443. scgi
  444. sendmail-lwt
  445. sendmail-mirage
  446. serial
  447. server-reason-react
  448. session-cohttp-lwt
  449. session-cookie-lwt
  450. session-postgresql-lwt
  451. sessions
  452. shared-block-ring
  453. shared-memory-ring-lwt
  454. sihl < "0.2.0"
  455. slack
  456. slacko
  457. slipshow
  458. smtml >= "0.3.1"
  459. speed
  460. spin < "0.8.0"
  461. stk
  462. stog < "1.0.0"
  463. syguslib-utils
  464. syndic >= "1.4" & < "1.6.0"
  465. tar-mirage
  466. tar-unix < "3.0.0"
  467. tcpip >= "4.1.0"
  468. telegraml
  469. terminus
  470. testo-lwt
  471. tezos-base >= "16.0"
  472. tezos-clic >= "16.0"
  473. tezos-crypto >= "16.0"
  474. tezos-crypto-dal
  475. tezos-error-monad >= "16.0"
  476. tezos-lwt-result-stdlib
  477. tezos-p2p = "12.3"
  478. tezos-protocol-environment
  479. tezos-proxy >= "17.3"
  480. tezos-stdlib
  481. tezos-stdlib-unix >= "16.0"
  482. tezos-test-helpers >= "12.3"
  483. tezos-wasmer
  484. tezos-webassembly-interpreter-extra
  485. tezt
  486. tidy_email
  487. timmy-lwt
  488. tls >= "0.10.6" & < "0.16.0"
  489. tls-lwt < "0.17.4"
  490. tls-mirage
  491. tube
  492. tuntap < "1.7.0" | >= "2.0.0"
  493. twirp_cohttp_lwt_unix
  494. u2f
  495. uring
  496. uspf
  497. uspf-lwt
  498. uspf-mirage
  499. utop
  500. uwt
  501. vchan
  502. vchan-unix
  503. vchan-xen
  504. vercel
  505. vhd-format-lwt
  506. vmnet
  507. vpnkit
  508. vue-jsoo < "0.3"
  509. wayland < "2.0"
  510. webauthn
  511. xen-evtchn >= "2.0.0"
  512. xen-evtchn-unix
  513. xen-gnt
  514. xen-gnt-unix >= "4.0.2"
  515. xenstore
  516. xenstore_transport
  517. xlsx2csv
  518. yocaml_git < "2.0.0"
  519. yocaml_unix < "2.0.0"
  520. zarr-lwt
  521. zmq-lwt

Conflicts

None

OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct