The work queues have been introduced in Linux 2. They allow kernel functions to be activated much like deferrable functions and later executed by special kernel threads called worker threads. Despite their similarities, deferrable functions and work queues are quite different. The main difference is that deferrable functions run in interrupt context while functions in work queues run in process context. Running in process context is the only way to execute functions that can block for instance, functions that need to access some block of data on disk because, as already observed in the section " Nested Execution of Exception and Interrupt Handlers " earlier in this chapter, no process switch can take place in interrupt context. Neither deferrable functions nor functions in a work queue can access the User Mode address space of a process.
Mark Allen Weiss
SoftwareHomework/parentvoice.info at master · AbrahamJobs/SoftwareHomework · GitHub
In this assignment, you will create a simulation for an airport. Concepts The purpose of this assignment is to gain experience with the following new concepts:. This program simulates an airport using graphics, without any necessary interaction from the user. Once you are done with the coding, you can just sit back and enjoy watching your simulation. Starter code has been provided, and you will add to it to complete the assignment.
A work queue is an efficient way to perform asynchronous operations on another thread. Conceptually, you put work items in the queue, and the queue has a thread that pulls each item from the queue and dispatches it. Media Foundation creates several standard work queues, called platform work queues.
Post a Comment. Self Quiz 3. Which statement is true? Queues use two ends of the structure; stacks use only one. The correct answer is: Queues use two ends of the structure; stacks use only one.