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The Bakery-Algorithm<\/a><\/h1>

The Bakery-Algorithm<\/a> is a classic Synchronization<\/a> algorithm developed by Leslie-Lamport<\/a> to solve the Mutual-Exclusion<\/a> problem in Concurrent-Computing<\/a>. It ensures that multiple Processes<\/a> do not access a Critical-Section<\/a> at the same time, even in the absence of hardware-level Atomic-Operations<\/a> such as compare-and-swap.<\/p>

How the Algorithm Works<\/h2>

The algorithm is inspired by the ticketing systems used in retail environments like bakeries. When a Thread<\/a> wants to enter the Critical-Section<\/a>, it must first take a ticket number. This number is assigned as one greater than the maximum of all currently existing ticket numbers. The thread then waits until its number is the smallest among all threads currently competing for access. If two threads receive the same number, the Process-ID<\/a> is used as a tie-breaker, ensuring a First-In-First-Out<\/a> property and preventing Starvation<\/a>.<\/p>

Context and Theoretical Significance<\/h2>

Leslie-Lamport<\/a> first described this method in his 1974 paper titled