gistfile1.txt

//
//  AppDelegate.m
//  DirGetNative
//
//  Created by Chris Hamons on 6/30/15.
//  Copyright (c) 2015 Chris Hamons. All rights reserved.
//

#import "AppDelegate.h"
#import <mach/mach.h>

@import Foundation;

// http://stackoverflow.com/questions/787160/programmatically-retrieve-memory-usage-on-iphone
void report_memory(void) {
    struct task_basic_info info;
    mach_msg_type_number_t size = sizeof(info);
    kern_return_t kerr = task_info(mach_task_self(),
                                   TASK_BASIC_INFO,
                                   (task_info_t)&info,
                                   &size);
    if( kerr == KERN_SUCCESS ) {
        NSLog(@"Memory in use (in bytes): %u", info.resident_size);
    } else {
        NSLog(@"Error with task_info(): %s", mach_error_string(kerr));
    }
}

@interface AppDelegate ()

@property (weak) IBOutlet NSWindow *window;
@end

NSButton *b;

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
    b = [[NSButton alloc] initWithFrame:NSMakeRect(0, 0, 200, 100)];
    [[_window contentView] addSubview:b];
    b.target = self;
    b.action = @selector(onButtonPress);
}

- (void) onButtonPress {
    b.enabled = NO;
    NSFileManager * fm = [NSFileManager defaultManager];
    NSString * o = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, true)[0];
    NSString * path = [o stringByAppendingString:@"/TestFiles/"];
    NSDirectoryEnumerator * e = [fm enumeratorAtPath:path];
    int counter = 0;
    while (true)
    {
        NSObject * file = [e nextObject];
        if (file == nil)
            break;
        counter++;
    }
    NSLog (@"%d", counter);
    report_memory ();
    b.enabled = YES;

}

- (void)applicationWillTerminate:(NSNotification *)aNotification {
    // Insert code here to tear down your application
}

@end