0 views collected around this technical thread.
This tutorial explains the CSS shape() function, its syntax, and how it extends clip‑path and offset‑path capabilities, allowing developers to craft responsive, irregular shapes using percentages, variables, and arc commands, with practical code examples and browser compatibility notes.
Explore how Rust’s Send and Sync marker traits guarantee thread‑safe ownership transfer and shared references, with clear explanations, practical code examples, custom type implementations, common pitfalls, and performance considerations to help you write reliable concurrent programs.
This article examines how ARC‑managed object assignments can produce wild pointers and EXC_BAD_ACCESS crashes in multithreaded iOS apps, explains the underlying reference‑counting steps, demonstrates reproducible demo scenarios, and offers practical mitigation strategies for developers.
This article explains how Objective‑C’s AutoreleasePool works under ARC and MRC, covering NSAutoreleasePool, the @autoreleasepool syntax, internal C++ structures, page management, POOL_BOUNDARY handling, nested pools, and the interaction with the run‑loop for timely object release.
An in‑depth analysis of a memory‑growth issue observed in a Kuaishou live‑stream app reveals how ARC, autorelease pools, and NSString’s class‑cluster implementation interact, why @autoreleasepool blocks resolve the leak, and how compiler optimizations and thread‑local pools affect object release in long‑running C++ threads.
The article describes how enabling the aggressive size‑optimisation flag -Oz in Clang caused a video component to create numerous GLFramebuffer and CVPixelBuffer objects, leading to OOM crashes, and explains the underlying ARC and Machine Outliner interactions that exposed a compiler bug which was later fixed in LLVM.
This article explains how Objective‑C objects are deallocated in both manual reference counting (MRC) and Automatic Reference Counting (ARC), outlines common pitfalls such as using __weak in dealloc, and details the runtime flow from _objc_rootDealloc to the final memory free operation.
This article explains iOS property attribute categories, the memory‑related modifiers assign, weak, strong and copy, clarifies why assign can cause dangling pointers while weak does not, and describes typical retain‑cycle cases caused by blocks, NSTimer and delegate misuse along with practical solutions.
This article explains how to draw SVG arcs of any angle, position and rotate text labels along the arcs, generate gradient colors using both RGBA and HSL methods, and assemble a reusable JavaScript class that creates interactive circular arc charts with click events.
This article explains the origin and concept of Objective‑C Blocks, details their internal structures and memory‑management mechanisms across MRR and ARC environments, demonstrates how to use and copy Blocks, and provides guidance on avoiding retain cycles through __block and __weak modifiers.