45 lines
2.0 KiB
OCaml
45 lines
2.0 KiB
OCaml
(* Ocsigen
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* http://www.ocsigen.org
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* lwt_lib.mli Copyright (C) 2007 Pierre Clairambault
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* Laboratoire PPS - CNRS Université Paris Diderot
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, with linking exceptions;
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* either version 2.1 of the License, or (at your option) any later version.
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* See COPYING file for details.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*)
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(** Cooperative unix system calls *)
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(** This module transform non-cooperative functions of the standard
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library into cooperative ones by launching them into system
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threads.
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Indeed, lots of functions of the [Unix] modules, corresponding to
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functions of the standard C library may take times to
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complete. For example [gethostbyname] may use DNS resolution,
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users informations may be stored in a ldap database, ...
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Since these functions are implemented (in the standard C library)
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using blocking IOs, if you use them directly, you program may
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hang. *)
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val getaddrinfo : string -> string -> Unix.getaddrinfo_option list -> Unix.addr_info list Lwt.t
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(** Cooperative getaddrinfo with cache (using Lwt_preemptive.detach) *)
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val gethostbyname : string -> Unix.host_entry Lwt.t
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(** Cooperative gethostbyname with cache (using Lwt_preemptive.detach) *)
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val getnameinfo : Unix.sockaddr -> Unix.getnameinfo_option list -> Unix.name_info Lwt.t
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(** Cooperative getnameinfo with cache (using Lwt_preemptive.detach) *)
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