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@maciekish
maciekish / resetXcode.sh
Created August 10, 2016 10:13
Reset Xcode. Clean, clear module cache, Derived Data and Xcode Caches. You can thank me later.
#!/bin/bash
killall Xcode
xcrun -k
xcodebuild -alltargets clean
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache"
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang.$(whoami)/ModuleCache"
rm -rf ~/Library/Developer/Xcode/DerivedData/*
rm -rf ~/Library/Caches/com.apple.dt.Xcode/*
open /Applications/Xcode.app
@caojianhua
caojianhua / OpenGLToCVPixelBuffer.m
Created January 27, 2016 09:29
Create CVPixelBufferRef from OpenGL
@interface SREAGLContext : NSObject
+ (EAGLContext*)sharedContext;
+ (EAGLContext*)newContext: (EAGLRenderingAPI) api;
@end
@implementation SREAGLContext
@Orangenhain
Orangenhain / import_minimizer.rb
Created November 28, 2013 12:45
Script that takes a ObjC .m file and tries to find unused (or duplicate) import statements by commenting out each #import line in turn and seeing if the project still compiles. You will have to change BUILD_DIR & BUILD_CMD.
#!/usr/bin/env ruby -w
class String
def starts_with?(prefix)
prefix.respond_to?(:to_str) && self[0, prefix.length] == prefix
end
end
HEADER_REGEX = /^#import\s+["<](.*)[">]/
@mckamey
mckamey / bezier.js
Created September 25, 2012 16:35
JavaScript port of Webkit CSS cubic-bezier(p1x.p1y,p2x,p2y) and various approximations
/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
@adib
adib / BSManagedDocument.h
Created September 11, 2012 06:07
An NSDocument subclass that supports asynchronous Core Data operations
//
// BSManagedDocument.h
//
// Created by Sasmito Adibowo on 29-08-12.
// Copyright (c) 2012 Basil Salad Software. All rights reserved.
// http://basilsalad.com
//
// Licensed under the BSD License <http://www.opensource.org/licenses/bsd-license>
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@jboner
jboner / latency.txt
Last active April 7, 2026 01:15
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@rgrove
rgrove / gist:2046918
Created March 15, 2012 21:02
How `this` works in browser JS
console.log(this); // => window (the global object)
var myObject = {};
function foo() {
console.log(this);
}
foo(); // => window
foo.call(myObject); // => myObject
@bignerdranch
bignerdranch / BNRTimeBlock.h
Created March 9, 2012 13:51
Timing Utility Post 20120308
CGFloat BNRTimeBlock (void (^block)(void));