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LINUX下消息队列
Linux下消息队列
用于进程间通信,有4个例程,可以实现
1.消息队列是消息的链表,具有特定的格式,存放在内存中并由消息队列标识符标识.
2.消息队列允许一个或多个进程向它写入与读取消息.
3.管道和命名管道都是通信数据都是先进先出的原则。
4.消息队列可以实现消息的随机查询,消息不一定要以先进先出的次序读取,也可以按消息的类型读取.比FIFO更有优势。
目前主要有两种类型的消息队列:POSIX消息队列以及系统V消息队列,系统V消息队列目前被大量使用。系统V消息队列是随内核持续的,只有在内核重起或者人工删除时,该消息队列才会被删除
- 2022-07-27 21:44:31下载
- 积分:1
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stm32f103c6 串口
stm32f103c6的串口C程序,已测试过。采用中断方式。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。
- 2022-11-21 14:15:03下载
- 积分:1
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该类库的Modbus通信协议,。网络环境可以沟通。
Modbus通信协议的类库,.net环境下可通用,TCP,RTU多种通信方式-Modbus communication protocol of the class library,. Net environment may be common, TCP, RTU multiple means of communication
- 2022-03-14 10:59:04下载
- 积分:1
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串口model通讯程序,不需用控件,利用AIP开发
串口model通讯程序,不需用控件,利用AIP开发-serial model communication procedures, unnecessary controls, the use of AIP Development
- 2022-05-27 05:28:44下载
- 积分:1
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Please read your package and describe it at least 40 bytes in English.
System...
Please read your package and describe it at least 40 bytes in English.
System will automatically delete the directory of debug and release, so please do not put files on these two directory
- 2022-10-15 11:35:02下载
- 积分:1
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An MFSK signal modulation and demodulation method of classification after the ca...
一种多进制频移键控信号的调制分类及解调方法结束后,返 回到BCP继续呼叫处理的终结点。
-An MFSK signal modulation and demodulation method of classification after the call to return to the BCP continues to deal with the end point.
- 2022-03-23 11:07:19下载
- 积分:1
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qam vhdl modelsim
qam的vhdl程序,包含载波恢复等。同时含有modelsim仿真文件,希望有所帮助-qam vhdl modelsim
- 2022-07-05 05:41:20下载
- 积分:1
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常用晶体管资料大全
常用晶体管资料大全-transistors commonly used information Daquan
- 2022-01-26 06:56:22下载
- 积分:1
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A satellite is any object that orbits another object.
In popular usage, the ter...
A satellite is any object that orbits another object.
In popular usage, the term satellite normally refers to an artificial satellite.
A planet, or any other body, which finds itself at any distance from the sun with no "sideways" velocity will quickly fall without missing the sun.-A satellite is any object that orbits another object.
In popular usage, the term satellite normally refers to an artificial satellite.
A planet, or any other body, which finds itself at any distance from the sun with no "sideways" velocity will quickly fall without missing the sun.
- 2022-05-06 20:08:15下载
- 积分:1
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skybird写的ASP的WAP网站源程序
skybird写的ASP的WAP网站源程序-skybird write the ASP source of WAP sites
- 2022-03-03 16:41:07下载
- 积分:1