5686af262f
- CloudKit pagination: fetchAllRecords() handles >400 record batches with cursor-based pagination (400 records per page) - Cancellation support: SyncCancellationToken protocol enables graceful sync termination when background tasks expire - Per-entity progress: SyncState now tracks timestamps per entity type so interrupted syncs resume where they left off - NetworkMonitor: NWPathMonitor integration triggers sync on network restoration with 2.5s debounce to handle WiFi↔cellular flapping - wasCancelled flag in SyncResult distinguishes partial from full syncs This addresses critical data sync issues: - CloudKit queries were limited to ~400 records but bundled data has ~5000 games - Background tasks could be killed mid-sync without saving progress - App had no awareness of network state changes Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
28 lines
627 B
Swift
28 lines
627 B
Swift
//
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// SyncCancellationToken.swift
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// SportsTime
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//
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// Cancellation support for long-running sync operations.
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//
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import Foundation
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import os
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/// Protocol for cancellation tokens checked between sync pages
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protocol SyncCancellationToken: Sendable {
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var isCancelled: Bool { get }
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}
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/// Concrete cancellation token for background tasks
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final class BackgroundTaskCancellationToken: SyncCancellationToken, @unchecked Sendable {
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private let lock = OSAllocatedUnfairLock(initialState: false)
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var isCancelled: Bool {
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lock.withLock { $0 }
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}
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func cancel() {
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lock.withLock { $0 = true }
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}
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}
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