开发跨进程读写锁(限制读者数量)第一部分:信号量
本文是《开发跨进程读写锁》系列的第一部分,重点介绍了如何使用信号量来限制同时读取共享资源的读者数量。通过分析信号量机制,作者为后续构建完整的跨进程读写锁奠定了基础。
本文是《开发跨进程读写锁》系列的第一部分,重点介绍了如何使用信号量来限制同时读取共享资源的读者数量。通过分析信号量机制,作者为后续构建完整的跨进程读写锁奠定了基础。
The article argues that unstructured "go" statements cause concurrency bugs and proposes structured concurrency as a safer alternative, where concurrent tasks are nested and scoped to make lifetimes predictable and prevent resource leaks.
The article argues that centralized package registries (like npm, PyPI, etc.) introduce security risks, single points of failure, and governance problems. It advocates for distributing trust through cryptographic signatures and transparency logs instead of relying on a central authority to vouch for package authenticity.
The document argues that the Robustness Principle ("be conservative in what you send, be liberal in what you accept") has harmful consequences for Internet protocol design. It contends that accepting malformed inputs leads to interoperability failures, ossification of protocols, and security vulnerabilities, advocating instead for strict validation and clear specifications.
This article discusses the undefined behavior that occurs when a C function is called with fewer register parameters than it expects, explaining how mismatched calling conventions can lead to reading garbage values from registers and causing unpredictable program crashes or data corruption.