Review of the Dining Philosopher Problem
By Jerry Cain - Stanford
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Lecture Description
Review of the Dining Philosopher Problem, Modeling Each Philosopher as a Thread, How Deadlock Can Result, How Deadlock Can be Eliminated By Limiting the Number of Philosophers That Can Eat at Once Using a Semaphore, Using a Global Variable and a Binary Lock to Track a Resource Vs. Using a Semaphore, Another Threading Example Involving FTP Downloads of Multiple Files at Once, Where Each File Is Assigned to a Thread and the Total Number of Bytes Is Returned, Implementing a Downloadhelper Function That Downloads a File and then Uses a Binary Lock to Safely Update the Total Number of Bytes Downloaded, Ensuring that the Downloadallfiles Function Does Not Return Before All the Files Have Been Downloaded by the Threads Which It Spawns by Using a Childrendone Semaphore, Ensuring that the Downloadallfiles Function Does Not Return Before All the Files Have Been Downloaded by the Threads Which It Spawns by Using a Childrendone Semaphore, How the Childrendone Semaphore Ensures that the Function Returns at the Correct Time, No Matter How the Various Threads Are Interleaved, Setting Up the Ice Cream Store Concurrency Example for Next Week
Course Description
Topics include: Advanced memory management features of C and C++; the differences between imperative and object-oriented paradigms; the functional paradigm (using LISP) and concurrent programming (using C and C++); brief survey of other modern languages such as Python, Objective C, and C#. Prerequisites: Programming and problem solving at the Programming Abstractions level. Prospective students should know a reasonable amount of C++. You should be comfortable with arrays, pointers, references, classes, methods, dynamic memory allocation, recursion, linked lists, binary search trees, hashing, iterators, and function pointers. You should be able to write well-decomposed, easy-to-understand code, and understand the value that comes with good variable names, short function and method implementations, and thoughtful, articulate comments.
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