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原创 C #pragma once的作用

这里写自定义目录标题C #pragma once的作用二者的区别总结C #pragma once的作用在C/C++的使用过程中，为了防止出现同一个头文件被重复引用导致编译失败的问题，通常有两种方式：1）#ifndef2）#pragma once在能够支持这两种方式的编译器上，它们都可以使用，但还是一些差异。二者的区别#ifndef这种方式受C/C++语言标准支持。它不仅可以保证同一个文件不会被包含多次，也能保证内容完全相同的两个文件（或者代码片段）不会被不小心同时包含。当然，缺点就是

2022-01-17 10:35:01 215

翻译 nginx学习随笔--proxy_temp_path

nginx学习随笔–proxy_temp_path英文原文：Syntax: proxy_temp_path path [level1 [level2 [level3]]];Default: proxy_temp_path proxy_temp;Context: http, server, locationDefines a directory for storing temporar

2017-09-14 11:37:10 12435 1

翻译 nginx学习随笔--client_body_temp_path

nginx学习随笔–client_body_temp_path英文原文：Syntax: client_body_temp_path path [level1 [level2 [level3]]];Default: client_body_temp_path client_body_temp;Context: http, server, locationDefines a direct

2017-09-14 10:51:12 8904

翻译 nginx学习随笔--ssl_session_timeout

nginx学习随笔–ssl_session_timeout 英文原文： Syntax: ssl_session_timeout time; Default: ssl_session_timeout 5m; Context: http, serverSpecifies a time during which a client may reuse the session parame

2017-09-14 10:20:13 16126

翻译 nginx学习随笔--ssl_session_cache

nginx学习随笔–ssl_session_cache英文原文：Syntax: ssl_session_cache off | none | [builtin[:size]] [shared:name:size];Default: ssl_session_cache none;Context: http, serverSets the types and sizes of cache

2017-09-14 10:11:56 12650

翻译 nginx学习随笔--keepalive_requests

nginx学习随笔–keepalive_requests 英文原文：Syntax: keepalive_requests number;Default: keepalive_requests 100;Context: http, server, locationSets the maximum number of requests that can be served throug

2017-09-14 09:29:24 7349

翻译 nginx学习随笔--keepalive_timeout

nginx学习随笔–keepalive_timeout英文原文：Syntax: keepalive_timeout timeout [header_timeout];Default: keepalive_timeout 75s;Context: http, server, locationThe first parameter sets a timeout during which

2017-09-13 18:26:56 1624

原创 C 常用函数罗列（长期更新）

C 常用函数罗列（长期更新）void *memset(void *Dst,int val,size_t size); 用来对一段内存空间全部设置为某个字符，一般用在对定义的字符串进行初始化。

2017-09-13 11:24:42 226

翻译 nginx学习随笔--tcp_nodelay

nginx学习随笔–tcp_nodelay英文原文：Syntax: tcp_nodelay on | off;Default: tcp_nodelay on;Context: http, server, locationEnables or disables the use of the TCP_NODELAY option. The option is enabled only w

2017-09-12 19:18:42 397

翻译 nginx学习随笔--tcp-nopush

nginx学习随笔–tcp-nopush英文原文：Syntax: tcp_nopush on | off;Default: tcp_nopush off;Context: http, server, locationEnables or disables the use of the TCP_NOPUSH socket option on FreeBSD or the TCP_COR

2017-09-12 16:13:21 7744

翻译 nginx学习随笔--sendfile

nginx学习随笔–worker_connections英文原文：Syntax: worker_connections number;Default: worker_connections 512;Context: eventsSets the maximum number of simultaneous connections that can be opened by a w

2017-09-12 11:30:00 337

翻译 nginx学习随笔--multi_accept

nginx学习随笔–multi_accept 英文原文： Syntax: multi_accept on | off; Default: multi_accept off; Context: eventsIf multi_accept is disabled, a worker process will accept one new connection at a time. O

2017-09-11 17:34:16 14367

翻译 nginx学习随笔--connection processing methods

nginx学习随笔–connection processing methodsnginx支持多种连接处理方法。一个方法的有效性取决于他在什么平台上使用。一个平台如果支持多个方法，nginx会自动选择最有效的一种方法。如果需要的话，可以使用use指令来特别指定用哪一种连接处理方法。有以下几种方法可以支持：select —— 标准方法。自动集成在缺少有效方法的平台上。可以用–with-selec

2017-09-11 15:51:48 354

翻译 nginx学习随笔--use

nginx学习随笔–use 英文原文： Syntax: use method; Default: — Context: eventsSpecifies the connection processing method to use. There is normally no need to specify it explicitly, because nginx will by

2017-09-11 15:00:06 593

翻译 nginx学习随笔--events

nginx学习随笔–events英文原文：Syntax: events { ... }Default: —Context: mainProvides the configuration file context in which the directives that affect connection processing are specified.中文翻译：为作用于指定的

2017-09-11 14:51:38 271

翻译 nginx学习随笔--worker_rlimit_core

nginx学习随笔–working_directory英文原文：Syntax: working_directory directory;Default: —Context: mainDefines the current working directory for a worker process. It is primarily used when writing a core

2017-09-11 14:37:26 2082 1

翻译 nginx学习随笔--worker_rlimit_nofile

nginx学习随笔–worker_rlimit_nofile英文原文：Syntax: worker_rlimit_nofile number;Default: —Context: mainChanges the limit on the maximum number of open files (RLIMIT_NOFILE) for worker processes. Used

2017-09-11 13:58:15 13554

翻译 nginx学习随笔--pid

nginx学习随笔–pid英文原文：Syntax: pid file;Default: pid nginx.pid;Context: mainDefines a file that will store the process ID of the main process.中文翻译：定义存储nginx主进程ID的文件。例如：pid logs/nginx.p

2017-09-11 13:36:15 360

翻译 nginx学习随笔--error_log

nginx学习随笔–error_log英文原文： Syntax: error_log file [level]; Default: error_log logs/error.log error; Context: main, http, mail, stream, server, locationConfigures logging. Several logs can

2017-09-11 13:17:46 1703

翻译 nginx学习随笔--worker_processes

nginx学习随笔–worker_processes简单介绍worker_processes的使用：nginx英文文档原文 Syntax: worker_processes number | auto; Default: worker_processes 1; Context: mainDefines the number of worker processe

2017-09-11 11:40:06 2913

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