October 2017
Intermediate to advanced
354 pages
9h 28m
English
Content preview from Mastering Linux Kernel Development
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POSIX message queues
POSIX message queues implement priority-ordered messages. Each message written by a sender process is associated with an integer number which is interpreted as message priority; messages with a higher number are considered higher in priority. The message queue orders current messages as per priority and delivers them to the reader process in descending order (highest priority first). This implementation also supports a wider API interface with facilities of bounded wait send and receive operations and asynchronous message arrival notifications for receivers through signals or threads.
This implementation provides a distinct API interface to create, open, read, write, and destroy message queues. Following is a summarized ...
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