nevyn

_source = dispatch_source_create(DISPATCH_SOURCE_TYPE_READ, mysocket, 0, dispatch_get_main_queue());
dispatch_source_set_event_handler(_source, ^{
  // do something with mysocket, because it has changed (has read, write or error)
};
dispatch_source_set_cancel_handler(source, ^{
  close(mysocket);
});
dispatch_resume(_source);

// sen för att stänga socket:

nevyn

foo(function(value) {
    bar(value, function(value2) {
        console.log("hey we're done", value2);
    });
});

// becomes

var value = foo().wait();
var value2 = bar(value).wait();

nevyn

// callback hell
- (void)fetch:(NSURL*)url saveWithCompletion:(void(^)())myCompletion errorHandler:(void(^)(NSError*))errorHandler
{
    [downloader fetchURL:url completion:^(NSData *data) {
        [parser parse:data completion:^(NSDictionary *parsed, NSError *err) {
            if(parsed) {
                [database save:completion^{
                    if(myCompletion)
                        myCompletion();
                }];

nevyn

static OSStatus
SSLVerifySignedServerKeyExchange(SSLContext *ctx, bool isRsa, SSLBuffer signedParams,
                                 uint8_t *signature, UInt16 signatureLen)
{
    SSLBuffer hashCtx;
    OSStatus err = _SSLVerifySignedServerKeyExchangeWithHashCtx(ctx, isRsa, signedParams,
        signature, signatureLen, &hashCtx);
    SSLFreeBuffer(hashCtx);
    return err;
}

nevyn

#import <CoreGraphics/CGGeometry.h>

static inline CGVector TCVectorMultiply(CGVector vector, CGFloat m);

static inline CGVector TCVectorMinus(CGPoint p1, CGPoint p2)
{
    return CGVectorMake(
        p1.x - p2.x,
        p1.y - p2.y
    );

nevyn

@implementation UIApplication (GFInterceptEvents)
+ (void)lookback_swizzleSendEvent
{
    Method orig = class_getInstanceMethod([UIApplication class], @selector(sendEvent:));
    Method repl = class_getInstanceMethod([UIApplication class], @selector(lookback_sendEvent:));
    method_exchangeImplementations(orig, repl);
}

- (void)lookback_sendEvent:(UIEvent*)event
{

nevyn

0.0370	enter	Lookback Recording
0.0760	enter	Status Bar Notification
0.0820	exit	App Settings
0.7280	enter	HostVC
0.7280	enter	
0.7280	enter	Data V C
0.7280	enter	
0.7290	enter	Data V C
0.7290	enter	
0.7290	enter	Data V C

nevyn

Working with the CocoaPods code base

In case you're unusued to working with Ruby projects or the used build tools, this section explains some work flows that will help you work with the CocoaPods code base.

CocoaPods uses Bundler to manage its dependencies. After checking out the CocoaPods repository, run rake bootstrap (which runs bundler install and git submodule update --init --recursive) to install everything you need to run and work on CocoaPods.

Working on CocoaPods dependencies or subprojects

CocoaPods is split into three: This main project which builds a complete tool, CocoaPodsCore which contains the data model and file parsers, and Xcodeproj which modifies and creates Xcode project and workspace files. For some changes, you are likely to need to make changes to either of those, in addition to the main project. You can tell Bundler that you want to use your local checkout of either of these projects instead of the system-wide installed version when you run the main project's "pod" tool

nevyn

### Keybase proof

I hereby claim:

  * I am nevyn on github.
  * I am nevyn (https://keybase.io/nevyn) on keybase.
  * I have a public key whose fingerprint is 4746 A6E5 B607 8617 C3FD  7F18 635F 66E7 2215 2A28

To claim this, I am signing this object:

nevyn

#import <Foundation/Foundation.h>
#import <sys/sysctl.h>
#import <sys/proc_info.h>
#import <libproc.h>

// http://www.objectpark.net/en/parentpid.html
pid_t OPParentIDForProcessID(pid_t pid)
{
    struct kinfo_proc info;
    size_t length = sizeof(struct kinfo_proc);