>!! (clj)

;; The clojure.core.async namespace contains the public API.
(require '[clojure.core.async :as async :refer :all])

;; In ordinary threads, we use `>!!` (blocking put) and `<!!`
;; (blocking take) to communicate via channels.

(let [c (chan 10)]
  (>!! c "hello")
  (assert (= "hello" (<!! c)))
  (close! c))

(let [c (chan)]
  (thread (>!! c "hello"))
  (assert (= "hello" (<!! c)))
  (close! c))

(let [c1 (chan)
      c2 (chan)]
  (thread (while true
            (let [[v ch] (alts!! [c1 c2])]
              (println "Read" v "from" ch))))
  (>!! c1 "hi")
  (>!! c2 "there"))

(require '[clojure.core.async :as async :refer [<! >! <!! >!! timeout chan alt! alts!! go]])

(defn fan-in [ins]
  (let [c (chan)]
   (future (while true
             (let [[x] (alts!! ins)]
               (>!! c x))))
   c))

(let [cout (chan)
      cin (fan-in (fan-out cout (repeatedly 3 chan)))]
  (dotimes [n 10]
    (>!! cout n)
    (prn (<!! cin))))

(require '[clojure.core.async :as async :refer [<!! >!! timeout chan alt!!]])

(defn fake-search [kind]
  (fn [c query]
    (future
     (<!! (timeout (rand-int 100)))
     (>!! c [kind query]))))

(defn google [query]
  (let [c (chan)
        t (timeout 80)]
    (future (>!! c (<!! (fastest query web1 web2))))
    (future (>!! c (<!! (fastest query image1 image2))))
    (future (>!! c (<!! (fastest query video1 video2))))
    (loop [i 0 ret []]
      (if (= i 3)
        ret
        (recur (inc i) (conj ret (alt!! [c t] ([v] v))))))))

;; The clojure.core.async namespace contains the public API.
(require '[clojure.core.async :as async :refer :all])

;; In ordinary threads, we use `>!!` (blocking put) and `<!!`
;; (blocking take) to communicate via channels.

(let [c (chan 10)]
  (>!! c "hello")
  (assert (= "hello" (<!! c)))
  (close! c))

(let [c (chan)]
  (thread (>!! c "hello"))
  (assert (= "hello" (<!! c)))
  (close! c))

(let [c1 (chan)
      c2 (chan)]
  (thread (while true
            (let [[v ch] (alts!! [c1 c2])]
              (println "Read" v "from" ch))))
  (>!! c1 "hi")
  (>!! c2 "there"))

(ns manifold.stream.async
  {:no-doc true}
  (:require
    [manifold.deferred :as d]
    [clojure.core.async :as a]
    [manifold.stream
     [graph :as g]
     [core :as s]]
    [manifold
     [executor :as executor]
     [utils :as utils]])
  (:import
    [java.util.concurrent.atomic
     AtomicReference]))

        blocking?
        (try
          (a/>!! ch x)
          true)

(ns more-speech.websocket-relay-spec
  (:require [speclj.core :refer :all]
            [clojure.core.async :as async]
            [more-speech
             [relay :as relay]
             [websocket-relay :as ws-relay]]))

  (it "can send and receive"
    (pending "be nice to relay.damus.io")
    (let [chan (async/chan)
          recv-f (fn [relay msg] (async/>!! chan [relay msg]))
          relay (ws-relay/make "wss://relay.damus.io" recv-f)
          relay-open (relay/open relay)
          _ (relay/send relay-open ["test"])
          f-reply (future (async/<!! chan))
          [relay-r reply] (deref f-reply 1000 :timeout)
          _ (relay/close relay-open)]
      (should= relay relay-r )
      (should= ["NOTICE" "could not parse command"] reply)))
  )

(ns jig.mqtt
  (:require
   jig
   [clojurewerkz.machine-head.client :as mh]
   [clojure.core.async :refer (chan >!! close!)]
   [clojure.tools.logging :refer :all])
  (:import (jig Lifecycle)))

(deftype MqttSubscriber [config]
  Lifecycle
  (init [_ system]
    (let [ch (chan (or (:channel-size config) 100))]
      (assoc-in system [:jig/channels (:channel config)] ch)))
  (start [_ system]
    (let [ch (get-in system [:jig/channels (:channel config)])]
      (infof "MQTT, client is %s, topics are %s" (::machine-head-client system) (:topics config))
      (mh/subscribe
       (::machine-head-client system)
       (:topics config)
       (fn [topic meta payload]
         (infof "Received message on topic %s: %s" topic (String. payload))
         (>!! ch {:topic topic :meta meta :payload payload}))))
    system)
  (stop [_ system]
    (let [client (::machine-head-client system)]
      (mh/unsubscribe client (:topics config)))
    (close! (get-in system [:jig/channels (:channel config)]))
    (update-in system [:jig/channels] dissoc (:channel config))))

(require '[com.clunk.core :as clunk]
         '[clojure.core.async :as async]
         '[clojure.core.match :as m])

(async/>!! (:out client) (clunk/get-startup username database))
;; (async/>!! (:out client) (clunk/get-query "select 1 as x, 2 as y;"))
(async/>!! (:out client) (clunk/get-query "select * from country limit 10;"))