recover from exception on iOS and macOS using signals and log the stacktrace

PanoPainter-OSX/main.cpp

@@ -19,32 +19,6 @@
 std::deque<std::packaged_task<void()>> tasklist;
 std::mutex task_mutex;
 
-void global_exception_handler(NSException* e)
-{
-    NSAlert *alert = [NSAlert alertWithMessageText:@"Recovery"
-        defaultButton:@"OK" alternateButton:@"Cancel"
-        otherButton:nil informativeTextWithFormat:@"Exception"];
-    [alert runModal];
-    
-    if (App::I.canvas && App::I.canvas->m_canvas)
-        App::I.canvas->m_canvas->project_save_thread(App::I.data_path + "/recovery.ppi");
-    
-    std::terminate();
-}
-
-void global_signal_handler(int e)
-{
-    NSAlert *alert = [NSAlert alertWithMessageText:@"Recovery"
-        defaultButton:@"OK" alternateButton:@"Cancel"
-        otherButton:nil informativeTextWithFormat:@"Signal"];
-    [alert runModal];
-
-    if (App::I.canvas && App::I.canvas->m_canvas)
-        App::I.canvas->m_canvas->project_save_thread(App::I.data_path + "/recovery.ppi");
-
-    std::terminate();
-}
-
 @implementation View
 - (void)async_lock
 {
@@ -451,6 +425,8 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
 }
 - (void)applicationDidFinishLaunching:(NSNotification *)notification
 {
+    [[NSUserDefaults standardUserDefaults] registerDefaults:@{ @"NSApplicationCrashOnExceptions": @YES }];
+
     if (!App::I.check_license())
         return;
     
@@ -492,9 +468,8 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
 
 int main(int argc, const char * argv[])
 {
+    install_global_handlers();
     AppOSX* app = [AppOSX sharedApplication];
-    NSSetUncaughtExceptionHandler(&global_exception_handler);
-    signal(SIGFPE, global_signal_handler);
     [app run];
     return 0;
 }