richardbuckle

Verbatim LLDB session with an iPad Air running iOS 7.1.1.
As you can see, "finPath", which is a const char*, is an absolute path.

Normally fopen(finPath, "r") works fine but sometimes after stress-testing the app gets into a state where it always fails with ENOENT.

How could fopen(finPath, "r") fail with ENOENT while open(finPath, O_RDONLY) succeeds?

Edit: forgot to say that no memory warnings were received during the stress test.

(lldb) p finPath

richardbuckle

I found:

NSMessagePort
NSURLSessionDataTask
NSURLSessionUploadTask

None of these were what Mike had in mind, which was NSFileSecurity.

I commented that NSFileSecurity was doubly interesting because it's in Foundation but not listed in "Foundation Framework Reference".

richardbuckle

// in some parent view controller's header file
- (IBAction)yourActionNameHere:(id)sender;

// implementation does whatever you want

// Now, from any call site, as long as you're on the main thread
// just post an action to nil and it will be sent to the first responder, 
// then all the way up the responder chain until it finds your view controller

[[UIApplication sharedApplication] sendAction:@selector(yourActionNameHere:)

richardbuckle

- (BOOL)tableView:(NSTableView*)tableView shouldShowCellExpansionForTableColumn:(NSTableColumn*)tableColumn row:(NSInteger)row
{
    return NO; // no tool tips
}

- (NSString*)tableView:(NSTableView*)aTableView toolTipForCell:(NSCell*)aCell rect:(NSRectPointer)rect tableColumn:(NSTableColumn*)aTableColumn row:(NSInteger)row mouseLocation:(NSPoint)mouseLocation
{
    return nil; // no tool tips
}

richardbuckle

(?<!Path:|Key:|NSLocalizedString\(|NibName:|NibNamed:|imageNamed:|PathComponent:|xpathQuery:|initForModel:|initWithDomain:|predicateWithFormat:|setDateFormat:|fontWithName:|entities:|sortBy:|NSClassFromString\(|NSLog\(|DLog\(|ALog\(|DebugLogging\()\s*(?!@"%@"|@"%d")@".+"

richardbuckle

- (void)closeDown {
    NSArray *stores = [self.persistentStoreCoordinator persistentStores];
    for (NSPersistentStore *store in stores) {
        DebugLogging(@"Closing Core Data store at %@", [store URL]);
        NSError *error = nil;
        if (![self.persistentStoreCoordinator removePersistentStore:store error:&error]) {
            DebugLogging(@"Unable to close Core Data store: error %@", [error localizedDescription]);
        }
    }
}