Module Logs_lwt

Lwt logging.

The log functions of this module return Lwt threads that proceed only when the log operation is over, as defined by the current Logs.reporter.

See a cooperative reporter example.

v0.7.0 - homepage

Log functions

type 'a log = ('aunit Lwt.t) Logs.msgf -> unit Lwt.t

The type for Lwt log functions. The returned thread only proceeds once the log operation is over. See Logs.log.

val msg : ?⁠src:Logs.src -> Logs.level -> 'a log

See Logs.msg.

val app : ?⁠src:Logs.src -> 'a log


val err : ?⁠src:Logs.src -> 'a log

See Logs.err.

val warn : ?⁠src:Logs.src -> 'a log

See Logs.warn.

val info : ?⁠src:Logs.src -> 'a log


val debug : ?⁠src:Logs.src -> 'a log

See Logs.debug.

val kmsg : (unit -> 'b Lwt.t) -> ?⁠src:Logs.src -> Logs.level -> ('a'b Lwt.t) Logs.msgf -> 'b Lwt.t

See Logs.kmsg.

Logging value Errors

val on_error : ?⁠src:Logs.src -> ?⁠level:Logs.level -> ?⁠header:string -> ?⁠tags:Logs.Tag.set -> pp:(Stdlib.Format.formatter -> 'b -> unit) -> use:('b -> 'a Lwt.t) -> ('a'b) Stdlib.result Lwt.t -> 'a Lwt.t

See Logs.on_error.

val on_error_msg : ?⁠src:Logs.src -> ?⁠level:Logs.level -> ?⁠header:string -> ?⁠tags:Logs.Tag.set -> use:(unit -> 'a Lwt.t) -> ('a[ `Msg of string ]) Stdlib.result Lwt.t -> 'a Lwt.t

See Logs.on_error_msg.

Source specific log functions

module type LOG = sig ... end
val src_log : Logs.src -> (module LOG)

src_log src is a set of logging functions for src.

Cooperative reporter example