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Message failed: -[BAAgentClientProxy currentDownloadsWithCompletion:]_block_invoke error: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.backgroundassets.user" UserInfo={NSDebugDescription=connection to service named com.apple.backgroundassets.user}
The above error occurs when debugging Background Assets on iPhone。
Post not yet marked as solved
I download the demo provided by WWDC 2023 Session 10108 "What’s new in Background Assets", and I configure all targets to my developer team for signing so I can run the application on my device. But I get an error when I use backgroundassets-debug command:
xcrun backgroundassets-debug --simulate --app-periodic-check --device-id 00008030-001631C036208*** --app-bundle-id com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX
Error Log:
backgroundassets.user Unable to use persistent identifier to update application info. Falling back to bundle identifier lookup. (bundle identifier: com.example.apple-samplecode.WWDC-Sessions8QQGK9DJB9)
......
backgroundassets.user Failed to get extension process: Error Domain=com.apple.extensionKit.errorDomain Code=4 "Failed to aquire assertion for pid: 3091" UserInfo={NSLocalizedDescription=Failed to aquire assertion for pid: 3091}
......
backgroundassets.user Failed to get extension process: Error Domain=com.apple.extensionKit.errorDomain Code=4 "Failed to aquire assertion for pid: 3092" UserInfo={NSLocalizedDescription=Failed to aquire assertion for pid: 3092}
backgroundassets.user -[BAAgentCore downloadQueue:manifest:finishedWithFileURL:]_block_invoke, Failed to access extension for com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX.
backgroundassets.user Removing manifest download as extension did not handle manifest. BAManifestDownload (0x75cd44aa0): [ID:com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX.Manifest-3BE0D398-734D-4E12-90DD-EE943D6DCXXX, AppID:com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX, Necessity:Essential]
Any help will be gratefully appreciated
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Hi , i tried to download image using background assets framework. I tried to use install and update events to test the extension. But the extension always delegate to backgroundDownload(_ :failedWithError :) function with following error
Error Domain=BAErrorDomain Code=202 "The requested URL is not permitted to be downloaded until the application is launched." UserInfo={NSLocalizedFailureReason=The requested URL is not permitted to be downloaded until the application is launched.}
I used the following url to download the image https://w0.peakpx.com/wallpaper/934/165/HD-wallpaper-avatar-aang-aang-airbender-aire-appa-avatar-legend-leyenda.jpg
Why am i getting this error and how to resolve this?
Post not yet marked as solved
Hi team,
I tried to download an image using the background assets . In development it downloads the image when I trigger the xcrun backgroundassets-debug command with instal event. But the image is not downloading for Test flight build.
In console I observed the following errors while installing the app,
Why am I getting this error while installing the app and how to resolve this?
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Hi, I used Background assets to download files during install/update events. The debug build works fine when I trigger the install event through terminal. The same code base (with different bundle ID ) is used in Test Flight build. But the file is not downloaded when I install the TestFlight build. I'm getting following error in Console while installing the TestFlight build.
sometimes, i'm getting Failed to notify extension about finished download: BAURLDownload (0x61a80ab98):
guard let url = URL(string:"https://devstreaming-cdn.apple.com/videos/wwdc/2021/10220/6/3866585A-3920-44B4-AB3F-03A446FCDE3A/downloads/wwdc2021-10220_hd.mp4") else{
return Set()
}
switch (request) {
case .install, .update:
let essentialDownload =
BAURLDownload(
identifier: "avtar345",
request: URLRequest(url: url),
essential: true,
fileSize: 155384552,
applicationGroupIdentifier: appGroupIdentifier,
priority: .default)
downloadsToSchedule.insert(essentialDownload)
break;
case .periodic: break;
}
My Background Assets extension arranges to download image resources, as follows:
NSURL *assetURL = [NSURL URLWithString:@"https://***.png”];
NSUInteger assetSize = 6849;
switch (contentRequest) {
case BAContentRequestInstall:
case BAContentRequestUpdate:
{
BAURLDownload *essentialDownload = [[BAURLDownload alloc] initWithIdentifier:@"YYBADAsset"
request:[NSURLRequest requestWithURL:assetURL]
essential:true
fileSize:assetSize
applicationGroupIdentifier:appGroupIdentifier
priority:BADownloaderPriorityDefault];
[downloadsToSchedule addObject:essentialDownload];
break;
}
}
At the same time, the finishedWithFileURL method is implemented as follows:
- (void)backgroundDownload:(BADownload *)download finishedWithFileURL:(NSURL *)fileURL
{
NSLog(@"BackgroundAssetsTest extension finishedWithFileURL:%@ forDownlad:%@",fileURL,download.identifier);
NSLog(@"BackgroundAssetsTest extension finishedWithManifestURLExist:%@",@([[NSFileManager defaultManager] fileExistsAtPath:fileURL.absoluteString]));
}
And then use tools to trigger events,
xcrun backgroundassets-debug --app-bundle-id com.luph.mytest --device-id 00008020-000A04xxF0002E --simulate --app-install
The following log is observed through the console:
BackgroundAssetsTest extension finishedWithFileURL:file:///private/var/mobile/Containers/Shared/AppGroup/1D051E06-E597-4670-969A-38ECA52C4F7A/Library/C aches/com.apple.BackgroundAssets/BAFile-5152AFB2.tmp forDownlad:YYBADAsset
BackgroundAssetsTest extension finishedWithManifestURLExist:0
What's the problem? Did I set the size of BAURLDownload to be different from the actual download size? Or the wrong way to determine the existence of the file?
Post not yet marked as solved
In our app, We have to download 5000 assets in the Install/Periodic event. Obviously, we can't download them all in parallel.
If we return all 5000 entries in the extension downloads function, will the system take care of queueing and downloading some 20 assets parallelly and take care of downloading all of 5000 assets?
Or Should we return only 20 urls and after if got finished, from the finished call back we can repeatedly schedule the next 20 every time and can download all of 5000 assets?
If we can't reduce the number of assets(like in our case 5000 entries), What is the recommended way of downloading it?
Post not yet marked as solved
Sometimes not able to get access to withExclusiveControl
I am not able to repro this, but once it can't get access, then killing the app also does not release the lock.
I have to restart the device to get the control.
Can we please fix this issue?
Post not yet marked as solved
The BAEssentiaMaxInstallSize key in the plist file indicates the installed maximum size of the necessary resources. Is this size the uncompression size, and is this size included in the size of the BAMaxInstallSize key?
Is BAEssentialDownloadAllowance included in BADownloadAllowance?
Post not yet marked as solved
I wrote the following code to schedule the download in extension：
AURLDownload *essentialDownload = [[BAURLDownload alloc] initWithIdentifier:url
request:[NSURLRequest requestWithURL:assetURL]
essential:true
fileSize:assetSize
applicationGroupIdentifier:YYBASharedSettings.appGroupIdentifier
priority:BADownloaderPriorityDefault];
NSLog(@"BackgroundAssetsTest extension Schedule essentialDownload url:%@",url);
and the delegate callback is implemented as follows：
- (void)backgroundDownload:(BADownload *)download failedWithError:(NSError *)error
{
NSLog(@"BackgroundAssetsTest extension failedWithError: %@",error);
}
The console outputs the following error:
BackgroundAssetsTest extension failedWithError: Error Domain=BAErrorDomain Code=202 "The requested URL is not permitted to be downloaded until the application is launched." UserInfo={NSLocalizedFailureReason=The requested URL is not permitted to be downloaded until the application is launched.}
What's the problem?
Scheduled downloads can only be triggered by launching the APP?
After receiving manifestURL in extension, I try to move it to the shared directory of APP group, as follows:
NSURL *url = [NSFileManager.defaultManager containerURLForSecurityApplicationGroupIdentifier:self.appGroupIdentifier];
NSURL *storageURL = [url URLByAppendingPathComponent:@"YYBAResCache" isDirectory:YES];
BOOL isDirectory;
BOOL isExists = [NSFileManager.defaultManager fileExistsAtPath:storageURL.path isDirectory:&isDirectory];
NSError *error = nil;
if (!isExists || !isDirectory) {
[NSFileManager.defaultManager createDirectoryAtURL:storageURL withIntermediateDirectories:YES attributes:@{NSFilePosixPermissions: [NSNumber numberWithShort:0777]} error:&error];
}
if (error){
NSLog(@"Failed to create session storage directory:%@",error);
}
NSURL *localManifestURL = [sessionStorageURL URLByAppendingPathComponent:@"manifest.json"];
Next, move the file：
NSError *error;
[NSFileManager.defaultManager moveItemAtURL:manifestURL toURL:localManifestURL error:&error];
if (error) {
NSLog(@"BackgroundAssetsTest extension saveMainifest:%@ to %@ error:%@",manifestURL,YYBASharedSettings.localManifestURL,error);
}
But I still received an error:
BackgroundAssetsTest extension saveMainifest:file:///var/tmp/com.apple.backgroundassets.downloadstaging/com.devinprogress2021/2cf0ae65-3058-4522-80d5-f4d76747ad15.json to file:///private/var/mobile/Containers/Shared/AppGroup/F466C6BA-35D7-4115-8D8E-E1726E3D3696/YYBAResCache/manifest.json
error:Error Domain=NSCocoaErrorDomain Code=513 "“2cf0ae65-3058-4522-80d5-f4d76747ad15.json” couldn’t be moved because you don’t have permission to access “YYBAResCache”." UserInfo={NSSourceFilePathErrorKey=/var/tmp/com.apple.backgroundassets.downloadstaging/com.yy.yymobile.devinprogress2021/2cf0ae65-3058-4522-80d5-f4d76747ad15.json, NSUserStringVariant=(
Move
), NSDestinationFilePath=/private/var/mobile/Containers/Shared/AppGroup/F466C6BA-35D7-4115-8D8E-E1726E3D3696/YYBAResCache/manifest.json, NSFilePath=/var/tmp/com.apple.backgroundassets.downloadstaging/com.devinprogress2021/2cf0ae65-3058-4522-80d5-f4d76747ad15.json, NSUnderlyingError=0x14520d2d0 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}}
why？
Post not yet marked as solved
Background asstes are triggered before the APP is launched. At this time, if the current device is not connected to the WIFI network, it will directly consume the operator's network traffic.
Is there any way to limit this in order to avoid disputes over fees arising from the consumption of users' non-wifi traffic without their knowledge?
For example, after extension is triggered, determine the network status when scheduling downloads?
Post not yet marked as solved
If you can open source the code in this video, it will be a great help for learning this interface
Post not yet marked as solved
xcrun backgroundassets-debug --simulate --app-install -d 00008120-0014188636D8C01E -b com.feitiandalong.photos
Application was installed event was sent for app identifier: (com.feitiandalong.photos).
It can be seen through charles capture that BAManifestURL has been successfully downloaded
but none of the files in the manifest are downloaded.
ACKs-compressed: 0, ACKs delayed: 0 delayed ACKs sent: 0
20:11:10.316138+0800 backgroundassets.user nw_flow_disconnected [C18 IPv4#98070097:443 cancelled parent-flow ((null))] Output protocol disconnected
20:11:10.317934+0800 backgroundassets.user nw_connection_report_state_with_handler_on_nw_queue [C18] reporting state cancelled
20:11:10.318057+0800 backgroundassets.user Connection 18: done
20:11:10.318375+0800 backgroundassets.user tcp_output [C18.1.1.1:3] flags=[FP.] seq=887285318, ack=2619599097, win=2048 state=FIN_WAIT_1 rcv_nxt=2619599097, snd_una=887285287
20:11:10.339591+0800 backgroundassets.user Removing manifest as extension processed the manifest. BAManifestDownload (0xcdca24b10): [ID:com.feitiandalong.photos.Manifest-576E82DE-A63B-4C9C-A463-266CAAEAA41D, AppID:com.feitiandalong.photos, Necessity:Essential]
20:11:10.340096+0800 backgroundassets.user Scheduled content request downloads count: 0 for client: com.feitiandalong.photos
20:11:10.341866+0800 backgroundassets.user user sessions enabled, targeting 501
20:11:10.345417+0800 backgroundassets.user cleaning up unpooled xpc conn to trustd 0xcdcc3a020
20:11:10.345523+0800 backgroundassets.user got event: Connection invalid
20:11:10.345550+0800 backgroundassets.user Trust evaluate failure: [leaf IssuerCommonName LeafMarkerOid SubjectCommonName]
20:11:10.357817+0800 backgroundassets.user user sessions enabled, targeting 501
20:11:10.360095+0800 backgroundassets.user cleaning up unpooled xpc conn to trustd 0xcdf20caa0
20:11:10.360199+0800 backgroundassets.user Trust evaluate failure: [leaf IssuerCommonName LeafMarkerOid SubjectCommonName]
20:11:10.360227+0800 backgroundassets.user got event: Connection invalid
20:11:10.366564+0800 backgroundassets.user was picked for validation
20:11:10.367495+0800 backgroundassets.user Client connection accepted from pid:620
20:11:10.708893+0800 backgroundassets.user tcp_input [C18.1.1.1:3] flags=[F.] seq=2619599097, ack=887285382, win=133 state=FIN_WAIT_2 rcv_nxt=2619599097, snd_una=887285382
20:11:25.379062+0800 backgroundassets.user Extension invalidated for identifier: com.feitiandalong.photos
20:11:25.379163+0800 backgroundassets.user Extension for app identifier com.feitiandalong.photos ran for 15.9 seconds.
20:11:25.379818+0800 runningboardd Invalidating assertion 31-432-2356 (target:[xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620]) from originator [osservice<com.apple.backgroundassets.user>:432]
20:11:25.486812+0800 runningboardd Removed last relative-start-date-defining assertion for process xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>
20:11:25.488538+0800 runningboardd Calculated state for xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>: running-suspended (role: None)
20:11:25.488835+0800 runningboardd [xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620] Set jetsam priority to 0 [0] flag[1]
20:11:25.489062+0800 runningboardd [xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620] Suspending task.
20:11:25.489964+0800 runningboardd [xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620] Shutdown sockets (SVC)
20:11:25.490145+0800 runningboardd [xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620] Result 45 setting darwin role to None: Operation not supported, falling back to setting priority
20:11:25.490350+0800 runningboardd [xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620] Set darwin priority to: PRIO_DARWIN_BG
20:11:25.490716+0800 runningboardd [xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620] set Memory Limits to Hard Inactive (6)
20:11:25.491013+0800 runningboardd [xpcservice<com.feitiandalong.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:620] check if suspended process is holding locks
20:11:25.505215+0800 backgroundassets.user Received state update for 620
Post not yet marked as solved
xcrun backgroundassets-debug --simulate --app-install -d 00008120-0014188636D8C01E -b com.linkone.photos
Application was installed event was sent for app identifier: (com.linkone.photos).
1.Failed to get LSApplicationRecord for <RBSLaunchRequest| xpcservice<com.linkone.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>; "Launching extension com.linkone.photos.BackgroundDownloadExt(417909C8-350A-40DB-BB09-011C6852A5F9) for host 432"> with error Error Domain=NSOSStatusErrorDomain Code=-10814 "(null)" UserInfo={_LSLine=1569, _LSFunction=runEvaluator}
2.Extension interrupted for identifier: com.linkone.photos
3.Failed to send -[BADownloaderExtensionProxy requestDownloadsWithContentRequest:manifestURL:extensionInfo:completion:]_block_invoke for: com.linkone.photos error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.linkone.photos.BackgroundDownloadExt was invalidated from this process." UserInfo={NSDebugDescription=The connection to service named com.linkone.photos.BackgroundDownloadExt was invalidated from this process.}
4.Removing manifest download as extension did not handle manifest. BAManifestDownload (0xcdcd199a0): [ID:com.linkone.photos.Manifest-A11C1BD7-4D46-4030-8AFB-3AC740645C5B, AppID:com.linkone.photos, Necessity:Essential]
5.Failed to lookup LSBundleRecord for audit token. Error Domain=NSOSStatusErrorDomain Code=-600 "The file system path for this process could not be determined. It may not be running, or it may have been deleted or moved while running." UserInfo={NSDebugDescription=The file system path for this process could not be determined. It may not be running, or it may have been deleted or moved while running., _LSLine=266, _LSFunction=+[LSBundleRecord _bundleRecordForAuditToken:checkNSBundleMainBundle:error:]}
6.RBSStateCapture remove item called for untracked item 31-432-3187 (target:[xpcservice<com.linkone.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:432])>:962])
Post not yet marked as solved
Failed to send -[BADownloaderExtensionProxy backgroundDownload:finishedWithSandboxToken:completionHandler:]_block_invoke for: com.xuhuiTest.photos error: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service with pid 2085 named com.xuhuiTest.photos.BackgroundDownloadExt" UserInfo={NSDebugDescription=connection to service with pid 2085 named com.xuhuiTest.photos.BackgroundDownloadExt}
Client is missing signing identifier, client must be signed with an identifier to use BackgroundAssets. (null)
log.json
Post not yet marked as solved
xcrun backgroundassets-debug --simulate --app-install -d 00008120-0014188636D8C01E -b com.testBackGround.photos
Application was installed event was sent for app identifier: (com.testBackGround.photos).
WWDC Sessions Background Assets Extension container_create_or_lookup_app_group_path_by_app_group_identifier: client is not entitled
backgroundassets.user Extension interrupted for identifier: com.testBackGround.photos
runningboardd Invalidating assertion 31-413-2850 (target:[xpcservice<com.testBackGround.photos.BackgroundDownloadExt([osservice<com.apple.backgroundassets.user>:413])>:1479]) from originator [osservice<com.apple.backgroundassets.user>:413]
backgroundassets.user Extension invalidated for identifier: com.testBackGround.photos
backgroundassets.user Extension for app identifier com.testBackGround.photos ran for 1.1 seconds.
backgroundassets.user Failed to send -[BADownloaderExtensionProxy requestDownloadsWithContentRequest:manifestURL:extensionInfo:completion:]_block_invoke for: com.testBackGround.photos error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.testBackGround.photos.BackgroundDownloadExt was invalidated from this process." UserInfo={NSDebugDescription=The connection to service named com.testBackGround.photos.BackgroundDownloadExt was invalidated from this process.}
backgroundassets.user Removing manifest download as extension did not handle manifest. BAManifestDownload (0xc2d2075c0): [ID:com.testBackGround.photos.Manifest-466C2F4F-60C7-494A-85EA-5E59F243C176, AppID:com.testBackGround.photos, Necessity:Essential]
Post not yet marked as solved
Hi,
In XCode organizer, under reports section, Crashes info shows fine with call stacks but Disk writes, Energy and Hang reports sections are broken recently. When I try to access any of these sections it says "The operation couldn't be completed. ((extension in DVT Products):....[Attached error screenshot]"
How to fix this error and get the reports under Disk writes, Energy and Hang reports section?
Regards,
Eshwar
Post not yet marked as solved
I am starting the app and fetching the current downloading tasks through BADownloadManager.sharedManager.fetchCurrentDownloadsWithCompletionHandler. Then, I am reinitiating the tasks through startForegroundDownload. However, occasionally there is a crash with EXC_BREAKPOINT
[BADownloadManager.sharedManager fetchCurrentDownloadsWithCompletionHandler:^(NSArray<BADownload *> * _Nonnull downloads, NSError * _Nullable error) {
if (error){
return;
}
for (BADownload *download in downloads) {
if ([urlList containsObject:download.identifier]){
if (download.state == BADownloadStateFailed) {
return;
}
NSError *downloadError;
BOOL succes = [BADownloadManager.sharedManager startForegroundDownload:download error:&downloadError];
if (downloadError) {
LogError(BADownloadLog,@"startForegroundDownload url:%@ error:%@",download.identifier,downloadError);
}else if(succes){
LogInfo(BADownloadLog,@"startForegroundDownload:%@",download.identifier);
[self addDowdloadingUrl:download.identifier];
}
}
}
}];
Crash stack：
Crash reason: EXC_BREAKPOINT / EXC_ARM_BREAKPOINT
Crash address: 0x21be8f638
Process uptime: 2 seconds
Thread 3 (crashed)
0 BackgroundAssets!-[BADownloadManager startForegroundDownload:error:] + 0x100
Found by: given as instruction pointer in context
1 BackgroundAssets!-[BADownloadManager startForegroundDownload:error:] + 0xe0
Found by: previous frame's frame pointer
2 YYMobile!__46-[YYBADownloadManager executeDownload:finish:]_block_invoke [YYBADownloadManager.m : 180 + 0xc]
Found by: previous frame's frame pointer
3 libdispatch.dylib!_dispatch_call_block_and_release + 0x1c
Found by: previous frame's frame pointer
4 libdispatch.dylib!_dispatch_client_callout + 0x10
Found by: previous frame's frame pointer
5 libdispatch.dylib!_dispatch_lane_serial_drain + 0x298
Found by: previous frame's frame pointer
6 libdispatch.dylib!_dispatch_lane_invoke + 0x17c
Found by: previous frame's frame pointer
7 libdispatch.dylib!_dispatch_workloop_worker_thread + 0x284
Found by: previous frame's frame pointer
8 libsystem_pthread.dylib!_pthread_wqthread + 0x11c
Found by: previous frame's frame pointer
The crash occurred at BOOL succes = [BADownloadManager.sharedManager startForegroundDownload:download error:&downloadError];
Post not yet marked as solved
Background Assets are integrated into our online Appstore. However, after launching the APP, we collected many crashes of Background Assets framework through our crash system.
1、BADownloadManager.sharedManager.fetchCurrentDownloadsWithCompletionHandler. Then, I am reinitiating the tasks through startForegroundDownload. However, occasionally there is a crash with EXC_BREAKPOINT
[BADownloadManager.sharedManager fetchCurrentDownloadsWithCompletionHandler:^(NSArray<BADownload *> * _Nonnull downloads, NSError * _Nullable error) {
if (error){
return;
}
for (BADownload *download in downloads) {
if ([urlList containsObject:download.identifier]){
if (download.state == BADownloadStateFailed) {
return;
}
NSError *downloadError;
BOOL succes = [BADownloadManager.sharedManager startForegroundDownload:download error:&downloadError];
if (downloadError) {
LogError(BADownloadLog,@"startForegroundDownload url:%@ error:%@",download.identifier,downloadError);
}else if(succes){
LogInfo(BADownloadLog,@"startForegroundDownload:%@",download.identifier);
[self addDowdloadingUrl:download.identifier];
}
}
}
}];
The following crashes exist：
Thread 3 (crashed)
0 BackgroundAssets!-[BADownloadManager startForegroundDownload:error:] + 0x100
Found by: given as instruction pointer in context
1 BackgroundAssets!-[BADownloadManager startForegroundDownload:error:] + 0xe0
Found by: previous frame's frame pointer
2 YYMobile!__46-[YYBADownloadManager executeDownload:finish:]_block_invoke [YYBADownloadManager.m : 180 + 0xc]
Found by: previous frame's frame pointer
3 libdispatch.dylib!_dispatch_call_block_and_release + 0x1c
Found by: previous frame's frame pointer
4 libdispatch.dylib!_dispatch_client_callout + 0x10
Found by: previous frame's frame pointer
5 libdispatch.dylib!_dispatch_lane_serial_drain + 0x298
Found by: previous frame's frame pointer
6 libdispatch.dylib!_dispatch_lane_invoke + 0x17c
Found by: previous frame's frame pointer
7 libdispatch.dylib!_dispatch_workloop_worker_thread + 0x284
Found by: previous frame's frame pointer
8 libsystem_pthread.dylib!_pthread_wqthread + 0x11c
Found by: previous frame's frame pointer
See attachment "iOS.crash" for the complete crash file.
iOS.crash
Ask what, do I need to use exclusive control when accessing BADownload?
2、Handling failed callbacks in background download extension, rearranging necessary resources crashed
- (void)backgroundDownload:(BADownload *)download failedWithError:(NSError *)error
{
// Extension was woken because a download failed.
// A download can be rescheduled with BADownloadManager if necessary.
if (![download isKindOfClass:[BAURLDownload class]]) {
return;
}
if (download.isEssential){
BADownload *nonEssential = [download copyAsNonEssential];
[BADownloadManager.sharedManager scheduleDownload:nonEssential error:nil];
}
}
Have a crash:
hread 1 Crashed:
0 BackgroundAssets 0x0000000245b47dac -[BADownload setPriority:] + 176 (BADownload.m:249)
1 BackgroundAssets 0x0000000245b47bb4 -[BADownload copyWithZone:] + 188 (BADownload.m:217)
2 BackgroundAssets 0x0000000245b46db0 -[BAURLDownload copyWithZone:] + 52 (BAURLDownload.m:127)
3 BackgroundAssets 0x0000000245b47f7c -[BADownload copyAsNonEssential] + 20 (BADownload.m:368)
4 YYBackgroundDownload 0x0000000100de8a88 0x100de4000 + 19080
5 BackgroundAssets 0x0000000245b3fd50 __88-[BADownloaderExtensionConnection backgroundDownload:failedWithError:completionHandler:]_block_invoke + 56 (BADownloaderExtensionConnection.m:178)
6 libdispatch.dylib 0x00000001d8080320 _dispatch_call_block_and_release + 32 (init.c:1518)
7 libdispatch.dylib 0x00000001d8081eac _dispatch_client_callout + 20 (object.m:560)
8 libdispatch.dylib 0x00000001d8089534 _dispatch_lane_serial_drain + 668 (inline_internal.h:2640)
9 libdispatch.dylib 0x00000001d808a0a4 _dispatch_lane_invoke + 384 (queue.c:3966)
10 libdispatch.dylib 0x00000001d8094cdc _dispatch_workloop_worker_thread + 648 (queue.c:6913)
11 libsystem_pthread.dylib 0x0000000230547ddc _pthread_wqthread + 288 (pthread.c:2618)
12 libsystem_pthread.dylib 0x0000000230547b7c start_wqthread + 8 (:-1)
Details see attachment
2023-09-19_09-46-22.4511_+0800-6c5f4b24bec7c04256c852d7a008978a886c15a3.crash
