Projektstart

backend/node_modules/bullmq/dist/esm/commands/includes/promoteDelayedJobs.lua

@@ -0,0 +1,44 @@
+--[[
+  Updates the delay set, by moving delayed jobs that should
+  be processed now to "wait".
+
+     Events:
+      'waiting'
+]]
+
+-- Includes
+--- @include "addBaseMarkerIfNeeded"
+--- @include "addJobInTargetList"
+--- @include "addJobWithPriority"
+--- @include "getPriorityScore"
+
+-- Try to get as much as 1000 jobs at once
+local function promoteDelayedJobs(delayedKey, markerKey, targetKey, prioritizedKey,
+                                  eventStreamKey, prefix, timestamp, priorityCounterKey, isPaused)
+    local jobs = rcall("ZRANGEBYSCORE", delayedKey, 0, (timestamp + 1) * 0x1000 - 1, "LIMIT", 0, 1000)
+
+    if (#jobs > 0) then
+        rcall("ZREM", delayedKey, unpack(jobs))
+
+        for _, jobId in ipairs(jobs) do
+            local jobKey = prefix .. jobId
+            local priority =
+                tonumber(rcall("HGET", jobKey, "priority")) or 0
+
+            if priority == 0 then
+                -- LIFO or FIFO
+                rcall("LPUSH", targetKey, jobId)
+            else
+                local score = getPriorityScore(priority, priorityCounterKey)
+                rcall("ZADD", prioritizedKey, score, jobId)
+            end
+
+            -- Emit waiting event
+            rcall("XADD", eventStreamKey, "*", "event", "waiting", "jobId",
+                  jobId, "prev", "delayed")
+            rcall("HSET", jobKey, "delay", 0)
+        end
+
+        addBaseMarkerIfNeeded(markerKey, isPaused)
+    end
+end