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min chunk size

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callebtc
2026-01-10 17:23:52 +07:00
parent 90b134186b
commit a37243e780
1 changed files with 2 additions and 1 deletions
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bitchat/Services/BLE/BLEService.swift
+2 -1
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@@ -27,6 +27,7 @@ final class BLEService: NSObject {
// Default per-fragment chunk size when link limits are unknown // Default per-fragment chunk size when link limits are unknown
private let defaultFragmentSize = TransportConfig.bleDefaultFragmentSize private let defaultFragmentSize = TransportConfig.bleDefaultFragmentSize
private let bleMaxMTU = 512
private let maxMessageLength = InputValidator.Limits.maxMessageLength private let maxMessageLength = InputValidator.Limits.maxMessageLength
private let messageTTL: UInt8 = TransportConfig.messageTTLDefault private let messageTTL: UInt8 = TransportConfig.messageTTLDefault
// Flood/battery controls // Flood/battery controls
@@ -3026,7 +3027,7 @@ extension BLEService {
let routeSize = 1 + (route.count * 8) let routeSize = 1 + (route.count * 8)
// Overhead = HeaderV2(16) + SenderID(8) + RecipientID(8) + RouteSize + FragmentHeader(13) + PaddingBuffer(16) // Overhead = HeaderV2(16) + SenderID(8) + RecipientID(8) + RouteSize + FragmentHeader(13) + PaddingBuffer(16)
let overhead = 16 + 8 + 8 + routeSize + 13 + 16 let overhead = 16 + 8 + 8 + routeSize + 13 + 16
calculatedChunk = 512 - overhead calculatedChunk = max(64, bleMaxMTU - overhead)
} }
let chunk = context.maxChunk ?? calculatedChunk let chunk = context.maxChunk ?? calculatedChunk