Given a URL /api/users/1234/pages, how an HTTP server finds the corresponding handler for it? Router helps to convert the concrete URL to a pattern and its handler.
This blog introduces the routers in Gin framework. In short, Gin uses trie(prefix tree) to maintain the URL-handler mapping.
Recently, I'm going to develop a static tool to analyze our self-defined framework syntax inside our company. Hence, I investigated a lot around the open source linters to find some ideas. This blogs talks about the implementation of errcheck. It's based on AST and relies on the node types to handle the different cases.
In the blog about symbol table, we discuss the context implementation for variables storage and the symbol table due to they are similar. In this blog, I will discuss the remaining parts about the context implementation.
Besides the value storage, context provides the cancel, timeout and deadline features. In this article, we focus on how the sub contexts are notified by the parent one while children context doesn't affect their parents.
Profile is a common concept among programming languages, it helps to access the program status like CPU, memory usage, and so forth. You may assume that only the languages with runtime could profile, but that's totally wrong. Languages without runtime like C, C++ could profile themselves as well by diverse approaches. For example, the compiler could insert some code instructions for profiling, or the profiler could interrupt the program to record its states periodically.
Half done as I don't have enough knowledge about Go runtime management.
This blog analyzes the implementation of Go sync/mutex after briefing the background knowledge in the previous blog Prerequisite of Go Sync Mutex Implementation.
This blog only concerns mutex.go. It introduces the internal logic of mutex and explains why the mutex shouldn't be copied and why the mutex isn't reentrant.