frp

Haskell Netwire: wires of wires

由 ∥☆過路亽．° 提交于 2020-01-13 11:23:36
问题 I'm playing around with the netwire package trying to get a feel for FRP, and I have a quick question. Starting with the following simple wires, I'm able to emit an event every 5 seconds (approx) myWire :: (Monad m, HasTime t s) => Wire s () m a Float myWire = timeF myWire' :: (Monad m, HasTime t s) => Wire s () m a Int myWire' = fmap round myWire myEvent :: (Monad m, HasTime t s) => Wire s () m a (Event Int) myEvent = periodic 5 . myWire' This is pretty nice and straight forward, but what I

Confused about diagrams of Yampa switches

由 ↘锁芯ラ 提交于 2020-01-12 09:53:07
问题 There is some diagrams of Yampa switches at: http://www.haskell.org/haskellwiki/Yampa/switch http://www.haskell.org/haskellwiki/Yampa/rSwitch http://www.haskell.org/haskellwiki/Yampa/kSwitch (and so on). I've found that the switch , the only one diagram with description, is the easiest one to get understand. The others seems hard to follow the similar symbols to read the diagrams. For example, to try to read the rSwitch with the symbols used in the switch may be: Be a recursive SF which is

reactive-banana time delays

由 帅比萌擦擦* 提交于 2020-01-12 05:27:06
问题 I have scoured the documentation of reactive-banana, and I can't find a way to specify explicit time delays. Say, for example, I would like to take an Event t a and shift all of its occurrences 1 second into the future; or get an event that fires 1 second from now (within Moment t ); or anything like that. Are explicit delays representable in reactive-banana? If not, how do users implement, e.g., echoing input delayed by a second? 回答1: As Ben indicates, this is correct: reactive-banana is no

使用docker搭建frp服务器

由 混江龙づ霸主 提交于 2020-01-10 08:37:12
前言 把本地的开发环境映射到外网，这是我们经常会碰到的一个要求，比方说展示给别人看啦，临时测试啦。尤其在微信开发中，因为微信必须要求80端口，所以不转发的情况下，我们只能把代码部署到服务器之后才能验证测试，非常麻烦。 最早的时候是花生壳，不过这家公司贼恶心。。后面开始用ngrok，然后现在又有了frp，相比来说frp的配置要更简单一点。 因为没有找到合适的docker镜像，所以在参考很多之后，就有了如下自写的image及compose 准备工作 具有外网ip的服务器 域名 我这里是准备了一个子域名，*.frp.thyiad.top，把这这个域名解析到服务器，这样可以支持同时映射多个域名到外网，具体的子域名在frp客户端配置，服务端配置前缀域名为frp.thyiad.top docker 需要注意的是，我这里是基于ngin-proxy镜像来解析域名的，此处不再赘述，可参照之前的文章： 使用docker搭建wordpress docker file 镜像已经上传到docker的hub上了，所以你也可以跳过docker file直接使用compose 创建工作目录： cd /usr mkdir frp && cd frp mkdir frp_image && cd frp_image 先创建一个frp的默认配置文件： mkdir conf && vim conf/frps.ini

Wait for latest values from dependent streams in BaconJS?

由 帅比萌擦擦* 提交于 2020-01-07 02:49:04
问题 I have 3 streams. gradingResult and contextId depend on studentResponse . I need to fire an event and only one event (otherwise, this is trivial) when all 3 have the latest values. I've tried #combineTemplate and #sampledBy studentResponse . Unfortunately, I always see the wrong data--- gradingResult and contextId have the old values in the combined template. How can I wait for all streams to have the latest values? Code is shown below: var studentResponse = new Bacon.Bus(); var gradingResult

What is the correct way of initializing an elm application

由 会有一股神秘感。 提交于 2019-12-30 02:44:14
问题 The documentation for Elm's Random module states: A good way to get an unexpected seed is to use the current time. http://package.elm-lang.org/packages/elm-lang/core/1.1.0/Random I don't see however a good example of how to perform such initialization logic in FRP application. What signal should I react to? How to do this with a minimum of code and maximum of clarity. 回答1: There are different ways to do this. Each has it's own benefits. I'll give you the three that I know with a similar

Rxjs observing object updates and changes

由 六月ゝ 毕业季﹏ 提交于 2019-12-29 05:58:21
问题 I am currently trying to observe any changes to a given object including all of it's elements. The following code only fires when an object[x] is updates, but not if individually updating object[x]'s elements such as object[x][y] <script> var elem = document.getElementById("test1"); var log = function(x) { elem.innerHTML += x + "<br/><br/><br/>"; }; var a = [{a:1,b:2}, {a:2,b:5} ]; var source = Rx.Observable .ofObjectChanges(a) .map(function(x) { return JSON.stringify(x); }); var subscription

RxJS5 - How can I cache the last value of a aggregate stream, without using Subjects and whilst excluding those that have completed?

由 别说谁变了你拦得住时间么 提交于 2019-12-25 07:18:47
问题 I want a pubsub system, with producers and consumers of streams, via a dataplane layer but without Subjects. Many producers can multicast to the same stream name (e.g, 'filters.add'), and multiple consumers can subscribe to the stream. Producers register with a name and stream to create a 'stream of published streams'. If a new producer registers with a particular stream name, the streams flowing to the consumers are dynamically updated such that the data received is a merging of all

Functional Banana Traveller - Input Handling

由 こ雲淡風輕ζ 提交于 2019-12-25 03:26:33
问题 This is a sub-problem from my Traveller project. I've put together the rudementary code that will handle input. It works, until I introduce a TChan to the mix. Below is the working code, with an example of how to use it. Then, I will change it and explain why I am doing so. Then, I'll talk about the problem. {-# LANGUAGE ScopedTypeVariables #-} import Control.Monad (forever) import Control.Concurrent (forkIO) import Control.Monad.STM (STM,atomically) import Control.Concurrent.STM.TChan import

docker安装frp

由 耗尽温柔 提交于 2019-12-24 10:51:42
docker安装frp 一. 服务端 1.1 创建frp的默认配置文件 1.2 创建启动脚本 1.3 启动 1.4 服务端执行成功 二. 客户端 2.1 win10客户端http访问web 内网服务 2.1.1 下载 2.1.2 修改`frpc.ini`配置文件 2.1.4 运行客户端 2.2 Linux客户端http访问内网web 服务 2.2.1 新建配置`frpc.ini`文件 2.2.2 创建启动脚本 2.2.3 启动 2.2.4 安装gogs测试 2.3 申请SSL证书 2.4 win10 https访问内网web服务 2.4.1 移动两个证书文件到`frp`根目录 2.4.2 修改frpc.ini 2.4.3 执行bat运行 前提：需要有一台已备案域名的云服务器 一. 服务端 源码地址 https://github.com/fatedier/frp docker镜像地址 https://github.com/snowdreamtech/frp?spm=a2c4e.10696291.0.0.4a5619a4SqlVwU 1.1 创建frp的默认配置文件 [root@master ~]# mkdir -p ~/i/apps/frp && cd ~/i/apps/frp [root@master frp]# cat <<EOF> frps.ini [common] bind
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