Product:
PDFTron - iOS Librabry (SPM)
Product Version:
11.3.85075
Hi PDFTron Team,
I recently encountered a crash while using the PDFTron library in an iOS application. The crash happens when the PDF starts loading:
open class PDFDocumentController: PTDocumentController {
private var didCacheDocumentAtURL: GenericCompletion<URL>?
public override init() {
super.init()
}
required public init(coder: NSCoder) {
super.init(coder: coder)
}
open override func shouldDeleteCachedDocument(at cachedDocumentURL: URL) -> Bool {
didCacheDocumentAtURL?(.success(cachedDocumentURL))
return super.shouldDeleteCachedDocument(at: cachedDocumentURL)
}
public func showAnnotations(_ annotationsXFDF: [String]) {
annotationsXFDF.forEach {
let fdfDoc = PTFDFDoc.create(fromXFDF: $0)
document?.fdfMerge(fdfDoc)
}
pdfViewCtrl.update()
}
private func loadDocument(url: URL,
authToken: String,
onDidCacheDocumentAtURL: GenericCompletion<URL>? = nil) {
didCacheDocumentAtURL = onDidCacheDocumentAtURL
additionalHTTPHeaders = ["Authorization": "Bearer \(authToken)"]
let options = PTDocumentOptions()
options.sourcePathExtension = "pdf"
openDocument(with: url, options: options)
}
public func loadDocument(diskURL: URL?,
remoteURL: URL,
authToken: String,
onDidCacheDocumentAtURL: GenericCompletion<URL>? = nil) {
if let diskURL {
loadDocument(url: diskURL, authToken: authToken)
} else {
loadDocument(url: remoteURL, authToken: authToken, onDidCacheDocumentAtURL: onDidCacheDocumentAtURL)
}
}
}
The crash occurred with the following stack trace:
Stack trace:
(lldb) bt
* thread #962, stop reason = signal SIGABRT
* frame #0: 0x00000001e78702ec libsystem_kernel.dylib`__pthread_kill + 8
frame #1: 0x00000001fb64cc0c libsystem_pthread.dylib`pthread_kill + 268
frame #2: 0x00000001a6bcfba0 libsystem_c.dylib`abort + 180
frame #3: 0x00000001fb569ca4 libc++abi.dylib`abort_message + 132
frame #4: 0x00000001fb559e5c libc++abi.dylib`demangling_terminate_handler() + 348
frame #5: 0x0000000196b8b14c libobjc.A.dylib`_objc_terminate() + 144
frame #6: 0x00000001fb569068 libc++abi.dylib`std::__terminate(void (*)()) + 16
frame #7: 0x00000001fb56c35c libc++abi.dylib`__cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) + 88
frame #8: 0x00000001fb56c2a0 libc++abi.dylib`__cxa_throw + 308
frame #9: 0x0000000196b6f420 libobjc.A.dylib`objc_exception_throw + 420
frame #10: 0x000000019dad49bc Foundation`NSAllocateMemoryPages + 184
frame #11: 0x000000019dad1b80 Foundation`-[_NSPlaceholderData initWithBytes:length:copy:deallocator:] + 132
frame #12: 0x000000019dad18e8 Foundation`+[NSData(NSData) dataWithBytes:length:] + 40
frame #13: 0x0000000103e073dc PDFNet`___lldb_unnamed_symbol11713 + 144
frame #14: 0x000000010419d948 PDFNet`___lldb_unnamed_symbol21818 + 100
frame #15: 0x000000010419c860 PDFNet`___lldb_unnamed_symbol21808 + 244
frame #16: 0x000000010419a8c0 PDFNet`___lldb_unnamed_symbol21784 + 112
frame #17: 0x000000010423c50c PDFNet`___lldb_unnamed_symbol23812 + 492
frame #18: 0x000000010423b3cc PDFNet`___lldb_unnamed_symbol23799 + 656
frame #19: 0x0000000104497048 PDFNet`___lldb_unnamed_symbol34621 + 140
frame #20: 0x00000001fb64b06c libsystem_pthread.dylib`_pthread_start + 136
The other error was also reported in Sentry with the identifier: TRN_UndoManagerDestroy. Not sure if it’s connected, but also has to be fixed. (Please see attached image):
Could you please provide insight into what might be causing this issue or suggest any possible workarounds? Let me know if you need any additional information.
Best regards