qq_22543355-优快云博客

原创记一次join()卡死问题

任务函数Loop()中会使用 lock(m_mutex),lock会尝试m_mutex.lock(),但是，第一张图内，m_mutex是上锁状态，lock会停在这里，等待m_mutex.unlock后，再次尝试m_mutex.lock(),简而言之，lock这里发生了阻塞。Join函数等待Loop()函数退出，而Loop函数等待 Join函数退出后m_mutex.unlock() 然后Loop函数内的lock将m_mutex.lock()，Join函数和Loop()互相等待，产生死锁；

2023-06-01 15:15:08 731

原创 tcp拥塞控制的四种方法

tcp拥塞控制的四种方法

2022-10-03 19:27:58 747

原创关于三次握手和四次挥手的思考

seq和ack的理解

2022-09-30 21:21:45 200

原创 linux常用指令

##管理员权限命令su - root##查看usb链接的设备mount /dev/sd (按tab键)##U盘挂载命令mount /dev/sdcI(我的优盘名字) 空格/mnt##卸载U盘命令umount /mnt##进到我的优盘命令cd /mnt##查看我的优盘文件ls##打开接口文件：vi 指定文件名字##退出文件：:q!##文件打包tar zcvf 自己命名的压缩文件名字.tar.gz 要打包的文件名字##拷贝命令：scp [自己命令的压缩名字.tar.gz]

2022-05-30 17:10:24 131

原创 notepad++安装包

https://blog.youkuaiyun.com/qq_31178783/article/details/124286109

2022-05-24 14:30:01 1356

原创内存对齐的知识

https://blog.youkuaiyun.com/lgouc/article/details/8235616http://light3moon.com/2015/01/19/[%E8%BD%AC]%20%E5%86%85%E5%AD%98%E5%AF%B9%E9%BD%90/

2022-04-28 15:24:27 116

原创 sizeof计算类对象所占空间

https://blog.youkuaiyun.com/qq_40416052/article/details/82916033

2022-04-28 14:51:34 91

原创 new和malloc的区别

https://www.cnblogs.com/ywliao/articles/8116622.html

2022-04-28 09:28:37 237

原创 static的使用

http://c.biancheng.net/view/2228.html#:~:text=%E5%9C%A8%E7%B1%BB%E4%B8%AD%EF%BC%8Cstatic%20%E9%99%A4%E4%BA%86%E5%8F%AF%E4%BB%A5%E5%A3%B0%E6%98%8E%20%E9%9D%99%E6%80%81%E6%88%90%E5%91%98%E5%8F%98%E9%87%8F%20%EF%BC%8C%E8%BF%98%E5%8F%AF%E4%BB%A5%E5%A3%B0%E6%98

2022-02-22 15:21:08 8713

原创类成员函数后面加const解读

https://www.cnblogs.com/afteet-lun/p/3675513.html#:~:text=%20%E7%B1%BB%E7%9A%84%E6%88%90%E5%91%98%E5%87%BD%E6%95%B0%E5%90%8E%E9%9D%A2%E5%8A%A0%20const%EF%BC%8C%E8%A1%A8%E6%98%8E%E8%BF%99%E4%B8%AA%E5%87%BD%E6%95%B0%E4%B8%8D%E4%BC%9A%E5%AF%B9%E8%BF%99%E4%B8%

2022-02-22 14:20:02 385

原创 const vector＜int＞ vec和vector＜const int＞ vec区别

https://blog.youkuaiyun.com/hhhenjoy/article/details/115465076https://www.cnblogs.com/XiaoXiaoShuai-/p/10750560.htmlhttps://blog.youkuaiyun.com/u014357799/article/details/79121524

2022-02-22 09:43:09 192

原创 try.....catch语句理解

http://c.biancheng.net/cpp/biancheng/view/3026.html

2021-11-30 14:16:57 71

转载 dynamic——cast强制类型转换

https://blog.youkuaiyun.com/armyshen/article/details/8791057

2021-11-12 14:32:19 133

转载 #ifndef #def #endif

https://blog.youkuaiyun.com/abc5382334/article/details/18052757

2021-11-11 13:31:59 86

转载虚拟机优化性能

https://blog.youkuaiyun.com/davidhzq/article/details/102461957

2021-11-10 11:02:26 95

原创 C/C++条件变量使用说明

https://www.cnblogs.com/chenyunf22/p/12775357.htmlhttps://blog.youkuaiyun.com/qq_35883464/article/details/103547949

2021-10-27 11:13:22 128

原创函数指针和函数指针类型

https://blog.youkuaiyun.com/xiaoxu2050/article/details/82889267

2021-10-27 09:52:56 79

转载 C++string类中substr()函数的使用方法

https://blog.youkuaiyun.com/weixin_42258743/article/details/107782394

2021-10-26 11:31:13 291

原创 pragma comment的使用 pragma预处理指令详解预编译指令详解

https://www.cnblogs.com/forlina/archive/2011/08/11/2134961.htmlhttps://blog.youkuaiyun.com/birenxiaofeigg/article/details/90080913

2021-10-26 10:59:21 193

原创 C++读入XML文件

https://www.cnblogs.com/yyh1993/p/6130455.html

2021-10-15 16:11:59 156

转载 C++读入XML文件

https://www.cnblogs.com/yyh1993/p/6130455.html

2021-10-15 11:13:53 630

转载 c++ 子类构造函数初始化及父类构造初始化

https://blog.youkuaiyun.com/sevenjoin/article/details/82222895

2021-10-14 11:38:13 301

转载 C++指针delete后还要置为null

https://blog.youkuaiyun.com/qq_36570733/article/details/80043321https://blog.youkuaiyun.com/linqingwu75/article/details/40951183

2021-10-14 10:44:17 251

转载 C 库函数 - strtoul()

http://c.biancheng.net/cpp/html/130.html

2021-10-12 10:21:24 229

转载 placemaent new

https://blog.youkuaiyun.com/linuxheik/article/details/80449059

2021-10-11 14:37:03 77

转载函数默认参数

https://www.html.cn/softprog/c/130395.html

2021-10-09 16:42:51 80

原创循环队列的理解

https://blog.youkuaiyun.com/gsjwxhn/article/details/102915653

2021-10-02 00:16:48 85

转载 C++编程语言中赋值运算符重载函数（operator=）介绍

https://blog.youkuaiyun.com/liitdar/article/details/80656156用类 A 类型的值为类 A 的对象赋值，且类 A 的数据成员中含有指针的情况下，必须显式提供赋值运算符重载函数

2021-09-28 11:14:41 171

转载哈夫曼编码

https://www.cnblogs.com/-citywall123/p/11297523.html

2021-09-27 20:38:27 77

转载 c++ string assign用法

https://www.cnblogs.com/daochong/p/7204608.html

2021-09-27 09:40:09 527

转载深入理解C++中的mutable关键字

https://blog.youkuaiyun.com/AAA123524457/article/details/80967330

2021-09-26 11:20:57 70

转载矮油~ C++ explicit关键字详解

https://www.cnblogs.com/rednodel/p/9299251.html

2021-09-24 11:29:34 72

原创关于mutex

https://blog.youkuaiyun.com/xiongya8888/article/details/100399151

2021-09-24 11:28:58 54

转载 crc算法

https://wenku.baidu.com/link?url=Re2BWyWtcC2LXKNMyOM7eQX_qXOhCOn9sNacY8sLSK6LI-TmVmIDI1I46IjlaV-eOmNBPzuX7YAHhemtq3aXzLUCaCSXMpuxe8_u85Wfa_W

2021-09-22 16:12:22 85

转载 c++ 中__declspec 的用法

https://blog.youkuaiyun.com/huangyimo/article/details/81748939?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-4.searchformbaiduhighlight&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlo

2021-09-22 10:24:09 424

转载 vector中erase()的使用注意事项

https://www.cnblogs.com/cLockey/p/3770622.htmlhttps://www.cnblogs.com/codingmengmeng/p/7392170.htmlhttp://www.cplusplus.com/reference/vector/vector/erase/

2021-09-18 11:18:09 99

转载 C++ this指针详解

http://c.biancheng.net/cpp/biancheng/view/201.html#:~:text=this%20%E5%88%B0%E5%BA%95%E6%98%AF%E4%BB%80%E4%B9%88.%20this%20%E5%AE%9E%E9%99%85%E4%B8%8A%E6%98%AF%E6%88%90%E5%91%98%E5%87%BD%E6%95%B0%E7%9A%84%E4%B8%80%E4%B8%AA%E5%BD%A2%E5%8F%82%EF%BC%8C%E5%9C%A

2021-09-17 15:28:53 259989

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