package lwt

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Promises and event-driven I/O

Install 

dune-project
 Dependency

github.com Edit opam file Versions (28)

Authors

  1. J
    Jérôme Vouillon
  2. J
    Jérémie Dimino

Maintainers

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

Sources

5.5.0.tar.gz
md5=94272fac89c5bf21a89c102b8a8f35a5
sha512=8951b94555e930634375816d71815b9d85daad6ffb7dab24864661504d11be26575ab0b237196c54693efa372a9b69cdc1d5068a20a250dc0bbb4a3c03c5fda1

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: 26 Nov 2021

Dependencies (10)

  1. seq
  2. result
  3. ocplib-endian
  4. ocaml-syntax-shims
  5. ocaml >= "4.08.0"
  6. ocaml (>= "4.02.0" & "os" != "win32" | >= "4.06.0") & < "5.0"
  7. mmap >= "1.1.0" & "os" != "win32"
  8. dune-configurator
  9. dune >= "1.8.0"
  10. cppo build & >= "1.1.0"

Dev Dependencies (1)

  1. ocamlfind with-dev-setup & >= "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
  11. anthill
  12. anycache-lwt
  13. archi-lwt
  14. arp
  15. awa-mirage
  16. aws-lwt
  17. aws-s3-lwt
  18. awsm-lwt
  19. azure-cosmos-db
  20. balancer
  21. bastet_lwt
  22. bimage-lwt
  23. bistro
  24. brisk-reconciler
  25. brozip
  26. builder
  27. builder-web < "0.2.0"
  28. bun >= "0.3.3"
  29. cachet-lwt
  30. calculon
  31. caldav
  32. camltc
  33. canary
  34. capnp-rpc-lwt < "1.2.3"
  35. capnp-rpc-unix < "1.2.3"
  36. caqti-lwt
  37. caqti-mirage
  38. carton < "1.0.0"
  39. carton-git < "0.7.2"
  40. carton-lwt
  41. catala-format >= "0.2.0"
  42. cf-lwt
  43. chamelon
  44. chamelon-unix
  45. chamo
  46. charrua-client
  47. charrua-unix
  48. clz
  49. cmdtui-lambda-term
  50. cohttp-curl-lwt
  51. cohttp-lwt < "6.0.0"
  52. cohttp-lwt-jsoo != "6.1.0" & < "6.2.1"
  53. cohttp-lwt-unix
  54. cohttp-mirage
  55. cohttp-server-lwt-unix
  56. comby
  57. comby-semantic
  58. conan-lwt
  59. conduit-lwt < "7.0.0"
  60. conduit-lwt-unix < "7.0.0"
  61. cowabloga
  62. crunch
  63. cstruct-lwt
  64. csv-lwt
  65. ctypes >= "0.15.0" & < "0.21.1"
  66. ctypes-foreign >= "0.21.1"
  67. curl_lwt
  68. current < "0.7.1"
  69. current_docker < "0.7.1"
  70. current_examples < "0.7.1"
  71. current_git < "0.7.1"
  72. current_github < "0.7.1"
  73. current_gitlab < "0.7.1"
  74. current_ocluster < "0.2"
  75. current_rpc < "0.6.4"
  76. current_slack < "0.7.1"
  77. current_web < "0.7.1"
  78. DkSDKFFIOCaml_Std
  79. dap
  80. data-encoding < "0.1.1"
  81. datakit-server
  82. devkit >= "1.2"
  83. distributed-lwt
  84. dkim-bin < "0.8.0"
  85. dkim-lwt-unix
  86. dkim-mirage
  87. dlm
  88. dmarc
  89. dns-certify
  90. dns-cli
  91. dns-client < "7.0.3"
  92. dns-client-lwt
  93. dns-client-mirage
  94. dns-forward
  95. dns-forward-lwt-unix
  96. dns-lwt
  97. dns-mirage
  98. dns-resolver
  99. dns-server
  100. dns-stub
  101. dnssd
  102. docker_hub
  103. docteur
  104. docteur-solo5
  105. docteur-unix
  106. doi2bib
  107. dream
  108. dream-httpaf
  109. dream-pure
  110. dream-serve
  111. dropbox
  112. dune >= "3.17.2"
  113. earlybird
  114. elasticsearch-cli
  115. emoji = "2.0.0"
  116. equinoxe
  117. ethernet
  118. ez_api
  119. ezcurl-lwt
  120. ezjs_min < "0.2"
  121. ezjsonm-lwt
  122. ezresto
  123. ezresto-directory >= "0.5"
  124. faraday-lwt
  125. faraday-lwt-unix
  126. fat-filesystem
  127. fiber-lwt
  128. fsevents-lwt
  129. fswatch_lwt
  130. fuseau-lwt
  131. gdbprofiler
  132. git
  133. git-cohttp
  134. git-cohttp-unix
  135. git-mirage
  136. git-paf
  137. git-unix >= "3.2.0" & < "3.15.0"
  138. github
  139. github-hooks
  140. github-unix >= "4.4.0"
  141. gitlab-unix
  142. gluten-lwt
  143. gluten-lwt-unix < "0.4.0"
  144. gluten-mirage < "0.4.0"
  145. graphql-lwt
  146. gremlin
  147. grpc-lwt
  148. gufo
  149. h1
  150. h1-lwt-unix
  151. h2-lwt
  152. h2-lwt-unix < "0.10.0"
  153. h2-mirage
  154. happy-eyeballs-lwt
  155. happy-eyeballs-mirage
  156. hiredis >= "0.6"
  157. hl_yaml
  158. hockmd
  159. http-lwt-client
  160. http-mirage-client
  161. http-multipart-formdata >= "2.0.0" & < "3.0.0"
  162. httpaf-lwt-unix
  163. httpun-lwt
  164. httpun-mirage
  165. httpun-ws-lwt
  166. hvsock
  167. i3ipc
  168. influxdb-lwt
  169. inotify >= "2.4"
  170. inquire < "0.3.0"
  171. interface-prime-lwt
  172. ip2location
  173. ip2locationio
  174. ip2whois
  175. ipv6-multicast-lwt
  176. irc-client-lwt
  177. irc-client-lwt-ssl
  178. irc-client-tls
  179. irmin
  180. irmin-bench
  181. irmin-chunk
  182. irmin-cli
  183. irmin-containers
  184. irmin-fs
  185. irmin-git
  186. irmin-graphql
  187. irmin-http
  188. irmin-indexeddb
  189. irmin-layers
  190. irmin-mirage-git
  191. irmin-mirage-graphql
  192. irmin-pack
  193. irmin-server
  194. irmin-test
  195. irmin-unix
  196. irmin-watcher
  197. joolog
  198. jose < "0.9.0"
  199. js_of_ocaml-lwt >= "3.5.0"
  200. jsoo_broadcastchannel
  201. jsoo_storage
  202. jupyter
  203. jupyter-kernel
  204. kafka < "0.5"
  205. kafka_lwt
  206. kappa-library
  207. ke >= "0.5"
  208. kinetic-client
  209. kubecaml
  210. lambda-runtime
  211. lambda-term
  212. lambda_streams_lwt
  213. launchd
  214. ldp
  215. learn-ocaml
  216. learn-ocaml-client
  217. letsencrypt
  218. letsencrypt-app
  219. letsencrypt-dns
  220. letters
  221. links >= "0.9.1"
  222. linol-lwt
  223. llama
  224. lru_cache
  225. lwt-canceler
  226. lwt-dllist
  227. lwt-exit
  228. lwt-parallel
  229. lwt-pipe
  230. lwt-pipeline
  231. lwt-watcher
  232. lwt_camlp4
  233. lwt_domain < "0.3.0"
  234. lwt_eio < "0.4"
  235. lwt_glib
  236. lwt_log
  237. lwt_ppx < "5.8.0"
  238. lwt_react
  239. lwt_retry
  240. lwt_ssl
  241. mariadb >= "1.2.0"
  242. markup = "0.7.6"
  243. markup-lwt
  244. mdx
  245. mechaml
  246. memtrace-mirage
  247. metrics-influx
  248. metrics-lwt
  249. metrics-unix
  250. mimic
  251. mindstorm-lwt
  252. mirage < "4.0.0"
  253. mirage-block >= "2.0.1"
  254. mirage-block-ccm
  255. mirage-block-combinators
  256. mirage-block-lwt
  257. mirage-block-ramdisk
  258. mirage-block-solo5
  259. mirage-block-unikraft
  260. mirage-block-unix >= "2.14.2"
  261. mirage-block-xen
  262. mirage-channel >= "4.0.1"
  263. mirage-channel-lwt
  264. mirage-clock-lwt
  265. mirage-clock-unix < "4.2.0"
  266. mirage-console-lwt
  267. mirage-crypto-rng < "0.11.3"
  268. mirage-crypto-rng-lwt
  269. mirage-crypto-rng-mirage
  270. mirage-device >= "2.0.0"
  271. mirage-flow >= "3.0.0"
  272. mirage-flow-combinators
  273. mirage-flow-lwt
  274. mirage-flow-unix
  275. mirage-fs >= "4.0.0"
  276. mirage-fs-lwt
  277. mirage-kv >= "3.0.1"
  278. mirage-kv-lwt
  279. mirage-kv-unix < "3.0.1"
  280. mirage-net >= "4.0.0"
  281. mirage-net-lwt
  282. mirage-net-macosx
  283. mirage-net-solo5
  284. mirage-net-unikraft
  285. mirage-net-unix
  286. mirage-net-xen
  287. mirage-profile
  288. mirage-protocols >= "7.0.0"
  289. mirage-protocols-lwt
  290. mirage-runtime
  291. mirage-sleep
  292. mirage-solo5
  293. mirage-stack = "3.0.0"
  294. mirage-stack-lwt
  295. mirage-time >= "3.0.0"
  296. mirage-time-lwt
  297. mirage-time-unix
  298. mirage-types-lwt
  299. mirage-unikraft
  300. mirage-unix
  301. mirage-vnetif
  302. mirage-xen
  303. monorobot
  304. moonpool-lwt
  305. mrmime >= "0.5.0"
  306. multipart-form-data
  307. multipart_form >= "0.2.0" & < "0.4.0"
  308. multipart_form-cohttp-lwt < "0.6.0"
  309. multipart_form-lwt
  310. mwt
  311. naboris
  312. nbd >= "4.0.3"
  313. nbd-tool
  314. nbd-unix
  315. nocrypto
  316. nottui-lwt
  317. notty-community
  318. nproc
  319. nsq
  320. obuilder < "0.5"
  321. obus >= "1.2.1"
  322. ocluster < "0.2"
  323. ocluster-api < "0.2"
  324. ocplib-resto
  325. ocsigen-start >= "4.1.0" & < "4.7.0"
  326. ocsigenserver
  327. ocsipersist
  328. ocsipersist-dbm
  329. ocsipersist-lib
  330. ocsipersist-pgsql
  331. ocsipersist-sqlite
  332. oframl
  333. ojs-base
  334. ojs_base
  335. omigrate
  336. oneffs
  337. opam-check-npm-deps >= "4.1.0"
  338. opam-compiler < "0.2.0"
  339. opencage
  340. opentelemetry-client-cohttp-lwt
  341. opentelemetry-cohttp-lwt >= "0.4"
  342. opentelemetry-lwt
  343. opium
  344. opium-graphql
  345. opium_kernel
  346. opomodoro
  347. order-i3-xfce
  348. ordma
  349. osc-lwt
  350. oskel >= "0.3.0"
  351. ounit-lwt < "2.2.0"
  352. ounit2-lwt
  353. owork
  354. ozulip
  355. paf
  356. paf-cohttp
  357. passage < "0.1.8"
  358. pcap-format < "0.5.2"
  359. petrol
  360. pgx_lwt
  361. pgx_lwt_mirage
  362. pgx_lwt_unix < "2.0"
  363. piaf < "0.2.0"
  364. plebeia >= "2.0.0"
  365. plist-xml-lwt
  366. plotkicadsch
  367. ppx_defer >= "0.4.0"
  368. ppx_deriving_rpc
  369. ppx_rapper_lwt
  370. proc-smaps
  371. prof_spacetime
  372. prometheus
  373. prometheus-app
  374. promise_jsoo_lwt
  375. protocol-9p
  376. protocol-9p-unix
  377. proton
  378. qcow
  379. qcow-stream
  380. qcow-tool
  381. qcow-types
  382. qfs >= "0.5"
  383. quests
  384. rawlink < "2.1"
  385. rawlink-lwt
  386. rdf_json_ld < "1.0.0"
  387. rdf_lwt < "1.0.0"
  388. redis-lwt
  389. reparse-lwt
  390. reparse-lwt-unix
  391. resource-pooling
  392. resp
  393. resp-mirage >= "0.10.0"
  394. resp-unix >= "0.10.0"
  395. resto
  396. resto-cohttp-client >= "0.4"
  397. resto-cohttp-self-serving-client
  398. resto-cohttp-server >= "0.4"
  399. resto-directory >= "0.4"
  400. riak
  401. ringo-lwt
  402. river
  403. rock
  404. rpclib-js
  405. rpclib-lwt
  406. SZXX < "4.0.0"
  407. sanddb
  408. scgi
  409. sendmail-lwt
  410. sendmail-mirage
  411. serial
  412. session-cohttp-lwt
  413. session-cookie-lwt
  414. session-postgresql-lwt
  415. sessions
  416. shared-block-ring
  417. shared-memory-ring-lwt
  418. sihl < "0.2.0"
  419. slack
  420. slacko
  421. slipshow
  422. smtml >= "0.7.0"
  423. speed
  424. spin < "0.8.0"
  425. stk
  426. stog < "1.0.0"
  427. syguslib-utils
  428. syndic >= "1.4" & < "1.6.0"
  429. tar-unix < "3.3.0"
  430. tcpip
  431. telegraml
  432. terminus
  433. tezos-lwt-result-stdlib < "16.0"
  434. tezos-p2p = "12.3"
  435. tezos-stdlib < "16.0"
  436. tezos-test-helpers = "12.3"
  437. tezt < "3.0.0"
  438. tidy_email
  439. timmy-lwt
  440. tls >= "0.10.6" & < "0.16.0"
  441. tls-lwt < "0.17.5"
  442. tls-mirage
  443. tube
  444. tuntap
  445. twirp_cohttp_lwt_unix
  446. uring
  447. uspf
  448. uspf-lwt
  449. uspf-mirage
  450. utop
  451. uwt
  452. vchan
  453. vchan-unix
  454. vchan-xen
  455. vercel
  456. vhd-format-lwt
  457. vmnet
  458. vpnkit
  459. vue-jsoo < "0.3"
  460. wayland < "2.0"
  461. webauthn
  462. xen-evtchn
  463. xen-evtchn-unix
  464. xen-gnt
  465. xen-gnt-unix
  466. xenstore
  467. xenstore-tool
  468. xenstore_transport
  469. xlsx2csv
  470. yocaml_git < "2.0.0"
  471. yocaml_unix < "2.0.0"
  472. zarr-lwt
  473. zmq-lwt

Conflicts (1)

  1. ocaml-variants = "4.02.1+BER"