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Java使用lambda且未显式指明lambda类型时，调用参数为callable与runnable的重载函数时可能存在坑，例子如下，基于jdk-11.0.1static int b(Callable<?> c) { return 10;}static void
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Overviewthread_poolngx_thread_pool_init
创建的是detached类型的线程
有一段类似于注释掉的代码，把thread的栈大小设置为PTHREAD_STACK_MIN
线程中运行的函数是ngx_thread_pool_cycle
要注意的是pthread中，ma
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需求
根据RFC959
高并发(C3K~C4K)
架构
在主线程使用epoll，监听listen在21端口的fd，和所有用户的命令链接的fd（以下均以cmdFd简称之）
一旦某个fd就绪，就将其封装成任务对象提交给线程池去执行
每个用户关联一个Session对象，根据RFC的要求，可以实现为，
...
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