component/qjs-wrapper: use queues with mutex

component/qjs-wrapper/buildout.cfg

@@ -9,7 +9,7 @@ parts = qjs-wrapper
 [qjs-wrapper-source]
 recipe = slapos.recipe.build:gitclone
 repository = https://lab.nexedi.com/nexedi/qjs-wrapper.git
-revision = e90dc40
+revision = 2f940df
 git-executable = ${git:location}/bin/git
 
 [qjs-wrapper]

software/js-drone/buildout.hash.cfg

@@ -46,4 +46,4 @@ md5sum = 3bbb0f80b644d86784aab99b03e88c2f
 
 [worker]
 _update_hash_filename_ = drone-scripts/worker.js.jinja2
-md5sum = 6cde256965271f89c6e82f04e3c0ce5c
+md5sum = be8b4f7daeb325549a48f4e98461ee19

software/js-drone/drone-scripts/worker.js.jinja2

@@ -71,7 +71,6 @@ import { evalScript, fdopen, loadFile, open } from "std";
     gwsocket_w_pipe_fd,
     handleWebSocketMessage,
     last_log_timestamp = 0,
-    last_message_timestamp_list = [],
     parent = Worker.parent,
     peer_dict = {},
     to_send_list = [],
@@ -259,15 +258,17 @@ import { evalScript, fdopen, loadFile, open } from "std";
     switch (type) {
 
     case "initPubsub":
-      initPubsub(configuration.numberOfDrones,
-                 configuration.numberOfSubscribers);
+      if (initPubsub(configuration.numberOfDrones,
+                     configuration.numberOfSubscribers
+          ) !== 0) {
+          throw new Error("Failed to initialize PubSub.");
+      }
       for (peer_id = 0; peer_id < configuration.numberOfDrones + configuration.numberOfSubscribers; peer_id++) {
         peer_dict[peer_id] = new Drone(peer_id);
         peer_dict[peer_id].init(peer_id);
         if (peer_id < configuration.numberOfDrones) {
           drone_dict[peer_id] = peer_dict[peer_id];
         }
-        last_message_timestamp_list[peer_id] = 0;
       }
       parent.postMessage({type: "initialized"});
       break;
@@ -283,22 +284,21 @@ import { evalScript, fdopen, loadFile, open } from "std";
     case "update":
       Object.entries(peer_dict).forEach(function ([id, peer]) {
         peer_message = peer.message;
-        if (peer_message.length > 0) {
-          parsed_message = JSON.parse(peer_message);
-          while (parsed_message.timestamp !== last_message_timestamp_list[id]) {
+        while (peer_message.length > 0) {
+          try {
+            parsed_message = JSON.parse(peer_message);
             parsed_message.message_list.forEach(function(message) {
               if (user_me.hasOwnProperty("onGetMsg")
                 && [-1, user_me.id].includes(message.dest_id)) {
                 user_me.onGetMsg(message.content);
               }
             });
-
-            last_message_timestamp_list[id] = parsed_message.timestamp;
-            peer_message = peer.message;
-            if (peer_message.length > 0) {
-              parsed_message = JSON.parse(peer_message);
-            }
+          } catch (error) {
+            console.log("Failed to parse message", peer_message);
+            console.log(error);
+            console.log(error.stack);
           }
+          peer_message = peer.message;
         }
       });
 
@@ -307,10 +307,7 @@ import { evalScript, fdopen, loadFile, open } from "std";
         user_me.onUpdate(evt.data.timestamp);
       }
 
-      setMessage(JSON.stringify({
-        message_list: to_send_list,
-        timestamp: Date.now()
-      }));
+      setMessage(JSON.stringify({message_list: to_send_list}));
       to_send_list = [];
 
       if (evt.data.timestamp - last_log_timestamp >= 1000) {