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Code Issues 454 Packages Projects Releases 10 Wiki Activity

Switch to timer for download task

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ronaldheft
2022-08-14 16:10:55 -04:00
parent 1f8a8d1ce5
commit 7cc35e4b96
1 changed files with 30 additions and 28 deletions
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ios/App/App/plugins/AbsDownloader.swift
+16 -14
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@@ -22,7 +22,7 @@ public class AbsDownloader: CAPPlugin, URLSessionDownloadDelegate {
}() }()
private let progressStatusQueue = DispatchQueue(label: "progress-status-queue", attributes: .concurrent) private let progressStatusQueue = DispatchQueue(label: "progress-status-queue", attributes: .concurrent)
private var downloadItemProgress = [String: DownloadItem]() private var downloadItemProgress = [String: DownloadItem]()
private var isMonitoringProgress = false private var monitoringProgressTimer: Timer?
public func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) { public func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {
handleDownloadTaskUpdate(downloadTask: downloadTask) { downloadItem, downloadItemPart in handleDownloadTaskUpdate(downloadTask: downloadTask) { downloadItem, downloadItemPart in
@@ -102,14 +102,23 @@ public class AbsDownloader: CAPPlugin, URLSessionDownloadDelegate {
// We want to handle updating the UI in the background and throttled so we don't overload the UI with progress updates // We want to handle updating the UI in the background and throttled so we don't overload the UI with progress updates
private func notifyDownloadProgress() { private func notifyDownloadProgress() {
if !self.isMonitoringProgress { if self.monitoringProgressTimer == nil {
self.isMonitoringProgress = true NSLog("Already monitoring progress, no need to start timer again")
DispatchQueue.global(qos: .userInteractive).async { } else {
DispatchQueue.runOnMainQueue {
self.monitoringProgressTimer = Timer.scheduledTimer(withTimeInterval: 0.2, repeats: true, block: { t in
NSLog("Starting monitoring download progress...") NSLog("Starting monitoring download progress...")
// Fetch active downloads in a thread-safe way // Fetch active downloads in a thread-safe way
func fetchActiveDownloads() -> [String: DownloadItem]? { func fetchActiveDownloads() -> [String: DownloadItem]? {
self.progressStatusQueue.sync { self.downloadItemProgress } self.progressStatusQueue.sync {
let activeDownloads = self.downloadItemProgress
if activeDownloads.isEmpty {
NSLog("Finishing monitoring download progress...")
t.invalidate()
}
return activeDownloads
}
} }
// Remove a completed download item in a thread-safe way // Remove a completed download item in a thread-safe way
@@ -121,21 +130,14 @@ public class AbsDownloader: CAPPlugin, URLSessionDownloadDelegate {
self.handleDownloadTaskCompleteFromDownloadItem(item) self.handleDownloadTaskCompleteFromDownloadItem(item)
} }
// While there are active download items, emit status updates // Emit status for active downloads
while !(fetchActiveDownloads()?.isEmpty ?? false) {
if let activeDownloads = fetchActiveDownloads() { if let activeDownloads = fetchActiveDownloads() {
for item in activeDownloads.values { for item in activeDownloads.values {
try? self.notifyListeners("onItemDownloadUpdate", data: item.asDictionary()) try? self.notifyListeners("onItemDownloadUpdate", data: item.asDictionary())
if item.isDoneDownloading() { handleDoneDownloadItem(item) } if item.isDoneDownloading() { handleDoneDownloadItem(item) }
} }
} }
})
// Wait 200ms before reporting status again
Thread.sleep(forTimeInterval: TimeInterval(0.2))
}
NSLog("Finished monitoring download progress...")
self.isMonitoringProgress = false
} }
} }
} }