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Description: 4．了解和掌握Linux系统支持的消息通信机制、共享存储区机制。. (1) 消息的创建、发送和接收： 使用系统调用msgget( )、msgsed( )、msgrev及msgcrl( )，编写消息的发送和接收程序（消息长度为1KB）； (2) 共享存储区的创建、附接和断接： 使用系统调用shmget( )、shmat( )、shmcrl( )，编写一个与上述功能相同的程序。-4. Understanding and support Linux messaging mechanism, shared memory mechanism. . (1) the creation of news, send and receive : the use of system calls msgget (), msgsed (), and msgrev msgcrl (), the preparation of the sender and receiver (news length of the 1KB); (2) shared storage area creation, and attached disconnect : use of system calls shmget (), shmat (), shmcrl (), a preparation of the above functions with the same procedure.
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Size: 202834 |
Author: 郑章孝 |
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Description: 4．了解和掌握Linux系统支持的消息通信机制、共享存储区机制。. (1) 消息的创建、发送和接收： 使用系统调用msgget( )、msgsed( )、msgrev及msgcrl( )，编写消息的发送和接收程序（消息长度为1KB）； (2) 共享存储区的创建、附接和断接： 使用系统调用shmget( )、shmat( )、shmcrl( )，编写一个与上述功能相同的程序。-4. Understanding and support Linux messaging mechanism, shared memory mechanism. . (1) the creation of news, send and receive : the use of system calls msgget (), msgsed (), and msgrev msgcrl (), the preparation of the sender and receiver (news length of the 1KB); (2) shared storage area creation, and attached disconnect : use of system calls shmget (), shmat (), shmcrl (), a preparation of the above functions with the same procedure.
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Size: 202752 |
Author: 郑章孝 |
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Description: 掌握系统调用shmget()、shmat()、shmdtshmctl()的使用方法及其功能，理解共享存储区通信原理；
系统理解linux 的三种通信机制。
-Master the system call shmget (), shmat (), shmdtshmctl () to use its functions, understanding, communication principle of shared storage area system to understand the linux three communication mechanisms.
Platform: |
Size: 16384 |
Author: 王鑫 |
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Description: 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通过共享存储区相互发送数据(５１２字节)。
（１）掌握系统调用shmget()、shmat()、shmdt()、shmctl()的使用方法及其功能，理解共享存储区通信原理；
（２）系统理解linux 的三种通信机制。
-Write a program, while the parent process creates two child processes p1 and p2 make child process child process p1 and p2 send to each other through shared memory data (512 bytes). (A) master system calls shmget (), shmat (), shmdt (), shmctl () function to use and understand the shared memory communication theory (2) Three linux system understandable communication mechanism.
Platform: |
Size: 11264 |
Author: 张格日乐 |
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Description: 共享存储取得创建、附接和断接，使用系统调用shmget()、shmat()、shmctl()，编制一个与上述功能相同的程序。-Shared storage made to create, attach and disconnect, use the system call shmget (), shmat (), shmctl (), the preparation of a function with the same procedure described above.
Platform: |
Size: 1024 |
Author: 徐舒怡 |
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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.)
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Size: 4096 |
Author: 数据包
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