unix shared memory example

Unix/linux shared memory applications and traps (2012-06-12-14:32)Tags: Linux memory classification: Linux applicationsShared memory is a piece of memory that is reserved for the system to be considered for communication between multiple processes.

Shared memory allows multiple processes to access the same memory space. It is the fastest available IPC format. It is designed to reduce the running efficiency of other communication mechanisms. It is often used in conjunction with other

Original article: http://davidlu1001.blogbus.com/logs/85182548.html Shared memory allows multiple processes to access the same memory space. It is the fastest available IPC format. It is designed to reduce the running efficiency of other

Inux system Programming I've been looking at the Original link http://www.cnblogs.com/skyme/archive/2011/01/04/1925404.htmlShared memory is a piece of memory that is reserved for the system to be considered for communication between multiple

Shared memory is the most useful communication method between processes and the fastest IPC format. The shared memory of two different processes A and B means that the same physical memory is mapped to the process address space of process a and

IPC forms in addition to pipelines, FIFO, semaphores, there is a shared memory area and Message Queuing. Here the main heap shared memory is introduced.The shared memory area is the fastest available in the IPC form. Once such a memory area is

Here's another way to explain interprocess communication, using shared memory.One, what is shared memoryShared memory, as the name implies, allows two unrelated processes to access the same logical memory. Shared memory is a very efficient way to

1 shared memory corresponds to the significance of application developmentThe IPC (interprocess communication) mechanism is familiar to programmers familiar with the application development of UNIX systems, and the IPC basically includes shared

Inter-process communication in Linux (5): Shared Memory (2) The system calls MMAP () to map a common file to implement shared memory. System V maps files in the SHM of a special file system to implement shared memory communication between processes.

Reprinted from http://www.ibm.com/developerworks/cn/linux/l-ipc/part5/index2.html The system calls MMAP () to map a common file to implement shared memory. System V maps files in the SHM of a special file system to implement shared memory