https://wwmxms.netlify.app/tags/double-close/Double-Close - 标签 - WWM的笔记Hugo -- gohugo.iozh-CNThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Thu, 07 Nov 2019 00:00:00 +0000https://wwmxms.netlify.app/fdsan/Thu, 07 Nov 2019 00:00:00 +0000WWMhttps://wwmxms.netlify.app/fdsan/背景 在分配file descriptors时, POSIX标准规定了内核必须从所有可被使用的fd数值中最小的一个, 参考alloc_fd，如果代码