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Jayakumar Balasubramanian |
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Project Title: Implementation of Message Queues
in Linux Kernel Abstract: The message queues are IPC
mechanisms used in Linux. When two user space processes wants to communicate
among themselves this message queues come into picture. Basically the Linux
Kernel will maintain linked list of message queues and a message queue identifier
identifies each queue uniquely. When one process wants to send a message to
another process it calls appropriate system call. The system call copies the
user data into Kernel's address space and added into the linked list of
messages. When the receiving process wants to read a message from the queue
it calls appropriate system call. Now the message is copies from the Kernel's
address space to user's buffer. Thus the processes communicate. This was
tested with Linux Kernel Version 2.4.2 Resources: Source
code Design Document |
