nandi/frq · ddbf5e1

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Run without a media plane

`libjoltmoq` is not on the phone — nobody has cross-built the media plane for
Android — and `-main` called into it before the window was up, so the whole
client died at startup with "no entry for joltmoq_init_logging" and took the
event loop with it.

A client that cannot make calls is still a client. Whether the library is
there at all is asked once, by calling the smallest thing in it, and that
answer gates the call surface: no pump, no Call button, and no dial from an
incoming call. Everything else — the channels, the pictures, the sign-in —
does not care.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

nandi committed 2026-08-30T18:31:21-07:00 Browse files

ddbf5e1 parent: 556ab58

modified src/frq/app.jolt +1 -0 Viewed

@@ -718,6 +718,7 @@
718	718	[:vbox {:key :call}
719	719	(when (and name
720	720	(str/starts-with? name "#")
	721	+ (av/available?)
721	722	(not (av/call-in name))
722	723	(not (av/in-call?)))
723	724	[:button {:label "Call" :on-click #(s/start-call! name)}])]]

        [:vbox {:key :call}
         (when (and name
                    (str/starts-with? name "#")
++                  (av/available?)
                    (not (av/call-in name))
                    (not (av/in-call?)))
           [:button {:label "Call" :on-click #(s/start-call! name)}])]]

modified src/frq/av.jolt +25 -5 Viewed

@@ -73,6 +73,21 @@
73	73	(def ^:private status-ended 2)
74	74	(def ^:private status-failed 3)
75	75
	76	+(defonce ^:private media-plane
	77	+ ;; Whether `libjoltmoq` is here at all, asked once by calling the smallest
	78	+ ;; thing in it. It is not on the phone — nobody has cross-built the media
	79	+ ;; plane for Android — and a client that cannot make calls is still a client,
	80	+ ;; so the answer gates the call surface rather than ending the run. Every
	81	+ ;; other binding in this namespace is reached only from behind it.
	82	+ (delay
	83	+ (try (raw-init-logging) true
	84	+ (catch Exception _ false))))
	85	+
	86	+(defn available?
	87	+ "Whether calls can happen here at all."
	88	+ []
	89	+ @media-plane)
	90	+
76	91	(defn- flag [b] (if b 1 0))
77	92	(defn- pref [s] (or s ""))
78	93
@@ -335,7 +350,8 @@
335	350	alone rather than re-dialled."
336	351	[server]
337	352	(when-let [{:keys [session-id token media]} @local-call]
338		- (when (and (seq session-id)
	353	+ (when (and (available?)
	354	+ (seq session-id)
339	355	(not (contains? #{:dialling :live} media))
340	356	(can-dial? server token))
341	357	(start-media! server))))
@@ -541,17 +557,21 @@
541	557	Worth doing unconditionally: it says nothing at all without a `RUST_LOG`,
542	558	and when a call misbehaves it is the only thing that knows why — MoQ
543	559	subscription, codec negotiation and device open all happen on the far side of
544		- the boundary, where no jolt-level trace can see them."
	560	+ the boundary, where no jolt-level trace can see them.
	561	+
	562	+ Asking whether the media plane is there is the same call, so this is it."
545	563	[]
546		- (raw-init-logging))
	564	+ (available?))
547	565
548	566	(defn install-pump!
549		- "Start pumping the media plane every frame. Returns a timer id.
	567	+ "Start pumping the media plane every frame. Returns a timer id, or nil where
	568	+ there is no media plane to pump.
550	569
551	570	Sixteen milliseconds rather than a longer gap because this is where video
552	571	arrives: polling slower than the window paints would show every other frame."
553	572	[]
554		- (vidya/every! 16 pump!))
	573	+ (when (available?)
	574	+ (vidya/every! 16 pump!)))
555	575
556	576	(defn tiles
557	577	"Everyone with a picture in the current call, the self-view last.

  (def ^:private status-ended 2)
  (def ^:private status-failed 3)
++(defonce ^:private media-plane
++  ;; Whether `libjoltmoq` is here at all, asked once by calling the smallest
++  ;; thing in it. It is not on the phone — nobody has cross-built the media
++  ;; plane for Android — and a client that cannot make calls is still a client,
++  ;; so the answer gates the call surface rather than ending the run. Every
++  ;; other binding in this namespace is reached only from behind it.
++  (delay
++    (try (raw-init-logging) true
++         (catch Exception _ false))))
++
++(defn available?
++  "Whether calls can happen here at all."
++  []
++  @media-plane)
++
  (defn- flag [b] (if b 1 0))
  (defn- pref [s] (or s ""))
    alone rather than re-dialled."
    [server]
    (when-let [{:keys [session-id token media]} @local-call]
--    (when (and (seq session-id)
++    (when (and (available?)
++               (seq session-id)
                 (not (contains? #{:dialling :live} media))
                 (can-dial? server token))
        (start-media! server))))
    Worth doing unconditionally: it says nothing at all without a `RUST_LOG`,
    and when a call misbehaves it is the only thing that knows why — MoQ
    subscription, codec negotiation and device open all happen on the far side of
--  the boundary, where no jolt-level trace can see them."
++  the boundary, where no jolt-level trace can see them.
++
++  Asking whether the media plane is there is the same call, so this is it."
    []
--  (raw-init-logging))
++  (available?))
  (defn install-pump!
--  "Start pumping the media plane every frame. Returns a timer id.
++  "Start pumping the media plane every frame. Returns a timer id, or nil where
++  there is no media plane to pump.
    Sixteen milliseconds rather than a longer gap because this is where video
    arrives: polling slower than the window paints would show every other frame."
    []
--  (vidya/every! 16 pump!))
++  (when (available?)
++    (vidya/every! 16 pump!)))
  (defn tiles
    "Everyone with a picture in the current call, the self-view last.