shensunbo Blog

「离开世界之前一切都是过程」

json.hpp

Posted by shensunbo on January 20, 2025

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memcpy优化失败

尝试了多种方式，仍然无法明显优化memcpy的拷贝速度，memcpy应该是已经高度优化过的了 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 ...

Posted by shensunbo on October 31, 2024

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修改gerrit的review意见

直接在网页上修改使用git修改 git fetch origin [git checkout <change-id>] git add . git commit --amend git push origin HEAD:refs/for/branch

Posted by shensunbo on October 21, 2024

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LINUX 调试栈

info proc mappings 打印内存映射信息 ``` (gdb) info proc mappings process 104188 Mapped address spaces: 1 2 3 4 5 Start Addr End Addr Size Offset objfile 0x400000 ...

Posted by shensunbo on October 18, 2024

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使用 Unix Domain Sockets 在不同进程间传递文件句柄

introduce Note: 句柄通过 msg_control 消息来发送，但是 msg_iov 仍然需要正确填充，不然会报错，可以随便填充一个字符发送一个描述符会使描述符的引用计数加1，意味着即使在接收进程调用recvmsg之前，发送进程关闭了该描述符，对于接收进程他任然保持打开状态在接收进程中会创建一个新的描述符，所以发送进程和接收进程的描述符是不相等的...

Posted by shensunbo on October 9, 2024

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bgfx

Posted by shensunbo on September 29, 2024

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blender脚本，

选中大于10000个三角形的对象 1 2 3 4 5 6 7 8 9 10 11 import bpy bpy.ops.object.select_all(action='DESELECT') for obj in bpy.data.objects: if obj.type == 'MESH': tri_count = len(obj.data.polygons)...

Posted by shensunbo on September 25, 2024

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编程

纯方法类接口都声明为静态的

Posted by shensunbo on September 9, 2024

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C++ 常用操作

使用signal机制，来捕获CTRL + C, 以使while(1)类的循环正常终止，正常情况下使用ctrl + c杀死程序，并不会调用析构函数，对有些库和框架可能会出问题 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 #include <csignal> #include <iostream> ...

Posted by shensunbo on August 28, 2024

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english practice 2

Weekend Plans: What do you like to do on weekends? Favorite TV Shows: What TV shows do you enjoy watching? Social Media: How do you use social media? Holidays: What’s your favorite holiday...

Posted by shensunbo on August 22, 2024

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