| /// Observes a run loop to detect any stalling or blocking that occurs. | |
| /// | |
| /// This class is thread-safe. | |
| @interface GHRunLoopWatchdog : NSObject | |
| /// Initializes the receiver to watch the specified run loop, using a default | |
| /// stalling threshold. | |
| - (id)initWithRunLoop:(CFRunLoopRef)runLoop; | |
| /// Initializes the receiver to detect when the specified run loop blocks for |
| /* | |
| * This is an example provided by Facebook are for non-commercial testing and | |
| * evaluation purposes only. | |
| * | |
| * Facebook reserves all rights not expressly granted. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL | |
| * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
Here's my own list of the interesting stuff announced during this year's WWDC, collected from the keynotes, various Apple docs, blog posts and tweets.
If you're planning to watch the videos, I really recommend this Mac app that helps you download and watch them: https://github.com/insidegui/WWDC.
http://www.apple.com/osx/elcapitan-preview/
| public struct Error: ErrorType { | |
| let source: String; let reason: String | |
| public init(_ source: String = __FILE__, _ reason: String) { | |
| self.reason = reason; self.source = source | |
| } | |
| } | |
| protocol Contextualizable {} | |
| extension Contextualizable { | |
| func functionContext(function : String = __FUNCTION__) -> String { |
| //: | |
| //: UIView Animation Syntax Sugar | |
| //: | |
| //: Created by Andyy Hope on 18/08/2016. | |
| //: Twitter: @andyyhope | |
| //: Medium: Andyy Hope, https://medium.com/@AndyyHope | |
| import UIKit | |
| extension UIView { |
The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).
My take-aways are:
You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.
Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse
| const websocket = require('websocket') | |
| const RippleClient = require('rippled-ws-client') | |
| const burnGtXrp = { | |
| ledger: 5, | |
| tx: 1 | |
| } | |
| new RippleClient('wss://rippled.xrptipbot.com').then(connection => { | |
| let atLedgerIndex = 38862032 | |
| let lastCoins = null | |
| let fetchCount = 0 |
