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36 lines
1.0 KiB
Lua

local Observable = require "rx.observable"
--- Returns an Observable that restarts in the event of an error.
-- @arg {number=} count - The maximum number of times to retry. If left unspecified, an infinite
-- number of retries will be attempted.
-- @returns {Observable}
function Observable:retry(count)
return Observable.create(function(observer)
local subscription
local retries = 0
local function onNext(...)
return observer:onNext(...)
end
local function onCompleted()
return observer:onCompleted()
end
local function onError(message)
if subscription then
subscription:unsubscribe()
end
retries = retries + 1
if count and retries > count then
return observer:onError(message)
end
subscription = self:subscribe(onNext, onError, onCompleted)
end
return self:subscribe(onNext, onError, onCompleted)
end)
end