mirror of
https://github.com/permissionlesstech/bitchat.git
synced 2026-07-25 08:05:20 +00:00
81 lines
3.2 KiB
Swift
81 lines
3.2 KiB
Swift
import Foundation
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/// Centralized knobs for transport- and UI-related limits.
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/// Keep values aligned with existing behavior when replacing magic numbers.
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enum TransportConfig {
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// BLE / Protocol
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static let bleDefaultFragmentSize: Int = 469 // ~512 MTU minus protocol overhead
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static let messageTTLDefault: UInt8 = 7 // Default TTL for mesh flooding
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static let bleMaxInFlightAssemblies: Int = 128 // Cap concurrent fragment assemblies
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static let bleHighDegreeThreshold: Int = 6 // For adaptive TTL/probabilistic relays
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// UI / Storage Caps
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static let privateChatCap: Int = 1337
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static let meshTimelineCap: Int = 1337
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static let geoTimelineCap: Int = 1337
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static let contentLRUCap: Int = 2000
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// Timers
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static let networkResetGraceSeconds: TimeInterval = 600 // 10 minutes
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static let basePublicFlushInterval: TimeInterval = 0.08 // ~12.5 fps batching
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// BLE duty/announce/connect
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static let bleConnectRateLimitInterval: TimeInterval = 0.5
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static let bleMaxCentralLinks: Int = 6
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static let bleDutyOnDuration: TimeInterval = 5.0
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static let bleDutyOffDuration: TimeInterval = 10.0
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static let bleAnnounceMinInterval: TimeInterval = 1.0
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// BLE discovery/quality thresholds
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static let bleDynamicRSSIThresholdDefault: Int = -90
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static let bleConnectionCandidatesMax: Int = 20
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static let blePendingWriteBufferCapBytes: Int = 1_000_000
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// Nostr
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static let nostrReadAckInterval: TimeInterval = 0.35 // ~3 per second
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// UI thresholds
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static let uiLateInsertThreshold: TimeInterval = 15.0
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static let uiProcessedNostrEventsCap: Int = 2000
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// BLE maintenance & thresholds
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static let bleMaintenanceInterval: TimeInterval = 10.0
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static let bleMaintenanceLeewaySeconds: Int = 1
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static let bleIsolationRelaxThresholdSeconds: TimeInterval = 60
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static let bleRecentTimeoutWindowSeconds: TimeInterval = 60
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static let bleRecentTimeoutCountThreshold: Int = 3
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static let bleRSSIIsolatedBase: Int = -90
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static let bleRSSIIsolatedRelaxed: Int = -92
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static let bleRSSIConnectedThreshold: Int = -85
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static let bleRSSIHighTimeoutThreshold: Int = -80
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// Location
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static let locationDistanceFilterMeters: Double = 1000
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static let locationLiveRefreshInterval: TimeInterval = 5.0
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// Nostr geohash
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static let nostrGeohashInitialLookbackSeconds: TimeInterval = 3600
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static let nostrGeohashInitialLimit: Int = 200
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static let nostrGeoRelayCount: Int = 5
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// Compression
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static let compressionThresholdBytes: Int = 100
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// Message deduplication
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static let messageDedupMaxAgeSeconds: TimeInterval = 300
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static let messageDedupMaxCount: Int = 1000
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// Verification QR
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static let verificationQRMaxAgeSeconds: TimeInterval = 5 * 60
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// Nostr relay backoff
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static let nostrRelayInitialBackoffSeconds: TimeInterval = 1.0
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static let nostrRelayMaxBackoffSeconds: TimeInterval = 300.0
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static let nostrRelayBackoffMultiplier: Double = 2.0
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static let nostrRelayMaxReconnectAttempts: Int = 10
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static let nostrRelayDefaultFetchLimit: Int = 100
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// Geo relay directory
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static let geoRelayFetchIntervalSeconds: TimeInterval = 60 * 60 * 24
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}
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