async send of messages to avoid fps drop

TradeSkillMaster_AuctionDB/Modules/ChannelSync.lua

@@ -13,14 +13,18 @@ local ChannelSync = TSM:NewModule("ChannelSync", "AceEvent-3.0")
 
 local CHANNEL_NAME = "TSM_AuctionDB"
 local COMM_PREFIX = "TSMADB1"
-local CHUNK_SIZE = 200
+local CHUNK_SIZE = 220
 local BUNDLE_TIMEOUT = 45
+local SEND_INTERVAL = 0.08
+local MAX_TOTAL_CHUNKS = 800
 
 local private = {
 	channelId = nil,
 	channelName = nil,
 	lastBroadcastHash = nil,
 	incoming = {},
+	sendQueue = {},
+	isSending = false,
 }
 
 local strbyte = string.byte
@@ -84,7 +88,7 @@ end
 local function EncodePayload(payload)
 	if not CanEncode() then return end
 	local serialized = libS:Serialize(payload)
-	local compressed = libD:CompressDeflate(serialized, { level = 7 })
+	local compressed = libD:CompressDeflate(serialized, { level = 9 })
 	if not compressed then return end
 	return libD:EncodeForPrint(compressed)
 end
@@ -125,11 +129,15 @@ function ChannelSync:BroadcastScanData(scanType)
 	if hash == private.lastBroadcastHash then return end
 	private.lastBroadcastHash = hash
 	local total = ceil(#encoded / CHUNK_SIZE)
-	if total > 65535 then return end
+	if total > MAX_TOTAL_CHUNKS then
-	for i = 1, total do
+		TSM:Print("AuctionDB channel sync payload too large; skipping broadcast.")
-		local chunk = strsub(encoded, (i - 1) * CHUNK_SIZE + 1, i * CHUNK_SIZE)
+		return
-		local msg = COMM_PREFIX .. string.format("%08x%04x%04x", tonumber(hash), i, total) .. chunk
+	end
-		SendChatMessage(msg, "CHANNEL", nil, private.channelId)
+
+	tinsert(private.sendQueue, {hash = hash, encoded = encoded, total = total})
+	if not private.isSending then
+		private.isSending = true
+		TSMAPI.Threading:Start(ChannelSync.SendQueueThread, 0.3)
 	end
 end
 
@@ -205,3 +213,17 @@ function ChannelSync:OnChannelMessage(_, msg, source, _, _, _, _, _, channelName
 	if not payload then return end
 	MergeIncomingData(payload)
 end
+
+function ChannelSync:SendQueueThread()
+	while #private.sendQueue > 0 do
+		local job = private.sendQueue[1]
+		for i = 1, job.total do
+			local chunk = strsub(job.encoded, (i - 1) * CHUNK_SIZE + 1, i * CHUNK_SIZE)
+			local msg = COMM_PREFIX .. string.format("%08x%04x%04x", job.hash, i, job.total) .. chunk
+			SendChatMessage(msg, "CHANNEL", nil, private.channelId)
+			self:Sleep(SEND_INTERVAL)
+		end
+		tremove(private.sendQueue, 1)
+	end
+	private.isSending = false
+end