我的ios应用程序有一个今天的扩展程序，该扩展程序通过rest调用从Internet获取数据，然后将rest调用的响应保存到realm db，并在扩展控制器中更新db的内容。
偶尔我发现使用以下堆栈跟踪更新db内容崩溃的代码
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 0
Application Specific Information:
abort() called
Filtered syslog:
None found
Last Exception Backtrace:
0 CoreFoundation 0x1843a2d8c __exceptionPreprocess + 228
1 libobjc.A.dylib 0x18355c5ec objc_exception_throw + 55
2 Realm 0x100f53c84 invocation function for block in objc_object* (anonymous namespace)::makeBoxedGetter<realm::StringData>(unsigned long) + 359556 (RLMObject_Private.hpp:45)
3 Darb Live Widget 0x100a3007c closure #1 in closure #1 in TodayViewController.updateData() + 114812 (TodayViewController.swift:164)
4 RealmSwift 0x100bce3a0 Realm.write(_:) + 140192 (Realm.swift:155)
5 Darb Live Widget 0x100a2fee4 closure #1 in TodayViewController.updateData() + 114404 (TodayViewController.swift:163)
6 Darb Live Widget 0x100a3ee2c specialized DetailDepartureBoardOperation.onRequestSuccess(_:operation:response:) + 175660 (DetailDepartureBoardOperation.swift:58)
7 Darb Live Widget 0x100a3e298 protocol witness for CallerDelegate.onRequestSuccess(_:operation:response:) in conformance DetailDepartureBoardOperation + 172696 (DetailDepartureBoardOperation.swift:55)
8 Darb Live Widget 0x100a4e8a8 specialized closure #1 in BaseCaller.execute(_:contentType:) + 239784 (BaseCaller.swift:136)
9 Darb Live Widget 0x100a4e518 closure #1 in BaseCaller.execute(_:contentType:) + 238872 (BaseCaller.swift:0)
10 Darb Live Widget 0x100a3115c _T0So22AFHTTPRequestOperationCypIegxi_AByXlIeyByy_TR + 119132 (TodayViewController.swift:0)
11 libdispatch.dylib 0x183c94b24 _dispatch_call_block_and_release + 23
12 libdispatch.dylib 0x183c94ae4 _dispatch_client_callout + 15
13 libdispatch.dylib 0x183ca1520 _dispatch_main_queue_callback_4CF$VARIANT$mp + 563
14 CoreFoundation 0x18434b070 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 11
15 CoreFoundation 0x184348bc8 __CFRunLoopRun + 2271
16 CoreFoundation 0x184268da8 CFRunLoopRunSpecific + 551
17 GraphicsServices 0x18624b020 GSEventRunModal + 99
18 UIKit 0x18e24978c UIApplicationMain + 235
19 libxpc.dylib 0x184011b7c _xpc_objc_main + 555
20 libxpc.dylib 0x184013c28 xpc_main + 179
21 Foundation 0x184f0dfd4 -[NSXPCListener resume] + 179
22 PlugInKit 0x189a08ec4 -[PKService run] + 711
23 PlugInKit 0x189a08ab4 +[PKService main] + 55
24 PlugInKit 0x189a08ee8 +[PKService _defaultRun:arguments:] + 19
25 Foundation 0x184ef4a98 NSExtensionMain + 63
26 libdyld.dylib 0x183cf9fc0 start + 3
下面给出的是它指向的代码：
public func updateData() {
for item in subArray {
// Get the ID's of the stop and update their data
let departureBoardperation = DetailDepartureBoardOperation(text:item.stopId!)
departureBoardperation.getResponse({ (response) in
try? self.realm!.write ({
let busItem = self.realm.objects(UserPreferedStop.self).filter("stopId = %@", item.stopId!)
let data = self.parseData(data: response,stopId: item.stopId!,targetObj: busItem.first!)
self.realm?.add(data,update: true)
self.tableView.reloadData()
})
}, failure: { (error) in
// update failed :(
print(error)
})
}
self.tableView.reloadData()
}
有人可以帮助我解决此问题吗？