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Description: 该程序首先通过fork()函数分别创建Client进程和Server进程，然后通过msgget()函数创建消息队列，由Client使用msgsnd()函数向Server进程发送一个消息，Server进程通过msgrcv()函数从消息队列中接收到消息后，通过msgsnd()函数向Client进程发送回一个响应，之后，通过sleep()函数，等待Client进程从消息队列中读取了消息后，删除消息队列。-The program first by fork () function, create separate Client process and the Server process, then msgget () function to create message queue by the Client using the msgsnd () function to send a message to the Server process, Server process, through the msgrcv () function from the message queue to receive the message through the msgsnd () function to send back a response to Client process, followed by sleep () function to wait for Client process from the message queue to read the message, delete the message queue.
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Size: 1024 |
Author: JK |
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Description: 消息队列通信 利用msgsnd和msgrcv通信-linux msgsnd msgrcv
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Size: 1024 |
Author: 贼船长 |
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Description: 客户端和服务器，进行消息收发，利用Winsock实现-Client and server, to send and receive messages using the Winsock implementation
Platform: |
Size: 33792 |
Author: kobe |
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Description: msgsnd and msgrcv calls
Platform: |
Size: 1024 |
Author: Jamile |
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Description: 消息队列是一个链表，链表的每一个结点是一个消息。消息队列存放在内核中并由消息队列标示符标识。
对消息队列的操作有下面三种类型：
a. 打开或创建消息队列
int msgget(key_t key, int flag)
参数key是一个键值，由ftok函数获得， flg参数是一些标志位。函数返回与健值key相对对应的消息队列描述字。
b. 读写操作
int msgsnd(int msqid, const void *ptr, size_t nbytes, int flag) // 将数据放入消息队列
ssize_t msgrcv(int msqid, void *ptr, size_t nbytes, long type, int flag) //从队列中取消息
c. 获得或设置消息队列属性：
消息队列的信息基本上都保存在消息队列头中，因此，可以分配一个类似于消息队列头的结构，来返回消息队列的属性；同样可以设置该数据结构。msgctl函数可以对队列执行多种操作。
int msgctl(int msqid, int cmd, struct msqid_ds *buf)
本实验是2个进程通过消息队列进行通信的实验。
-This experiment is two processes communicate via message queues experiments
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Size: 18432 |
Author: sdf |
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Description: linux下进程间通信 消息的创建、发送和接收
使用消息调用 msgget（）、msgsnd（）、msgrcv（）、msgctl（）编制长度为1K 的消息的发送和接收程序。
-under linux to create inter-process communication messages, send messages and receive calls using msgget (), msgsnd (), msgrcv (), msgctl () the preparation of the length of 1K message sending and receiving.
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Size: 1024 |
Author: 胡晨 |
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Description: 进程通信，信号，消息机制通信实现代码 使用系统调用msgget( )、msgsnd( )、msgrev( )及msgctl（）-Process communication, signal, message communication mechanism to achieve code
Using the system call msgget (), msgsnd (), msgrev () and msgctl ()
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Size: 1024 |
Author: 韩敏 |
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Description: 掌握系统调用msgget()、msgsnd()、msgrevmsgctl()的使用方法及其功能，理解消息通信原理；
系统理解linux 的三种通信机制。
-Master the system call msgget, msgsnd (), msgrevmsgctl () to use its functions, to understand the message communication theory system to understand the linux three communication mechanisms.
Platform: |
Size: 19456 |
Author: 王鑫 |
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Description: msgrcv.c msgsnd.c 创建消息队列实现信息交换通信-msgrcv.c msgsnd.c create a message queue to achieve the exchange of information communication
Platform: |
Size: 1024 |
Author: tt |
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Description: 发送程序与msg1.c类似。在main函数中，删除msg_to_receive声明，代之以buffer[BUFSIZ]。移除消息队列删除代码，并且在running循环中做出如下更改。现在我们调用msgsnd来将输入的文本发送到队列中。
-The sending program msg1.c similar. Delete msg_to_receive statement in the main function, replaced by the buffer [BUFSIZ]. Remove the message queue to delete the code, and make the following changes in the running cycle. Now we call msgsnd to the input text is sent to the queue.
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Size: 1024 |
Author: 程晨 |
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Description: 【实验内容】
编写一段程序，同时父进程创建两个子进程p1和p2；并使子进程p1与子进程p2通过消息队列相互发送消息（５１２字节）。
【实验目的】
系统了解linux系统的通信机构IPC ，掌握IPC中消息通信机制，理解消息通信的方法及特征。
【实验要求】
（１）掌握系统调用msgget()、msgsnd()、msgrev()、msgctl()的使用方法及其功能，理解消息通信原理；
（２）系统理解linux 的三种通信机制。
-Experimental Content] [write a program, while the parent process creates two child processes p1 and p2 make child process p1 and p2 child process to send messages to each other through a message queue (512 bytes). 【Purpose】 systematic understanding linux system communications agency IPC, the IPC messaging mechanism to grasp and understand the message communication methods and characteristics. [Experimental requirements] (1) master system call msgget (), msgsnd (), msgrev (), msgctl () function to use and understand the message communication principles (2) Three linux system understandable communication mechanism.
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Size: 4096 |
Author: 李亮 |
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Description: 消息的创建、发送和接收，使用系统调用msgget()、msgsnd()、msgrcv()、msgctl()编制长度为1K的消息的发送和接收程序。-Create a message, send and receive calls using the system msgget (), msgsnd (), msgrcv (), msgctl () preparation program length 1K sending and receiving messages.
Platform: |
Size: 1024 |
Author: 徐舒怡 |
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Description: Order previous accesses vs. msgsnd, which is treated as a store.
Platform: |
Size: 2048 |
Author: nijenno |
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Description: 操作系统实验进程双向通信，要求
1）创建一个消息队列用于收发双方通信包含msgget() msgsnd() msgrcv()
2）编写发送端和接收端代码基于消息队列实现双向通信
3）编译调试顺利运行并提交实验报告
4）课后要求对常见的四种进程通信方式进行调研和总结(Bidirectional communication of experimental process of operating system based on message queue)
Platform: |
Size: 233472 |
Author: 蚊子酱
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Description: A<========>B<=========>C<=====>D<======>E
A与B进程之间通过TCP的socket传递 主要掌握socket的流程：
A服务器端：
socket -->bind---->listen---->accept send read
B客户端：
socket-->connect->read send
不懂的可以man一下 man socket
B与C使用共享内存来交互
步骤是：shmget->shmat->直接读写--->shmdt shmctl(删除)
可以man
C与D之间使用消息传递进行
msgget-->msgrcv->msgsnd (注意这里的返回值判断发送正确与否 不是发送的字节数)
D使用fork（） 创建了一个进程 E
D跟E之间使用无名管道进行交互
E程序中可以使用有名管道 进行通讯。(A<========>B<=========>C<=====>D<======>E
Between the A and the B processes, the process of master socket is passed through the socket of the TCP:
A server side:
Socket -->bind---->listen---->accept send read
B client:
Socket-->connect->read send
Do not understand the ability to man man socket
B and C interact with shared memory
The step is: shmget->shmat-> read and write --->shmdt shmctl directly (delete)
Can man
Message passing between C and D
Msgget-->msgrcv->msgsnd (note that the return value here determines whether to send correctly or not the number of bytes sent)
D uses fork () to create a process E
Interaction between D and E using anonymous pipes
E programs can communicate with famous pipes.)
Platform: |
Size: 4096 |
Author: 数据包
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