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  2. Eisenberg & McGuire algorithm - Wikipedia

    en.wikipedia.org/wiki/Eisenberg_&_McGuire_algorithm

    The Eisenberg & McGuire algorithm is an algorithm for solving the critical sections problem, a general version of the dining philosophers problem. It was described in 1972 by Murray A. Eisenberg and Michael R. McGuire.

  3. Mutual exclusion - Wikipedia

    en.wikipedia.org/wiki/Mutual_exclusion

    The process attempts to enter the critical section. Critical Section The process is allowed to access the shared resource in this section. Exit The process leaves the critical section and makes the shared resource available to other processes. If a process wishes to enter the critical section, it must first execute the trying section and wait ...

  4. Critical section - Wikipedia

    en.wikipedia.org/wiki/Critical_section

    A critical section is typically used when a multi-threaded program must update multiple related variables without a separate thread making conflicting changes to that data. In a related situation, a critical section may be used to ensure that a shared resource, for example, a printer, can only be accessed by one process at a time.

  5. Dekker's algorithm - Wikipedia

    en.wikipedia.org/wiki/Dekker's_algorithm

    Dekker's algorithm is the first known correct solution to the mutual exclusion problem in concurrent programming where processes only communicate via shared memory. The solution is attributed to Dutch mathematician Th. J. Dekker by Edsger W. Dijkstra in an unpublished paper on sequential process descriptions [1] and his manuscript on cooperating sequential processes. [2]

  6. Peterson's algorithm - Wikipedia

    en.wikipedia.org/wiki/Peterson's_algorithm

    The algorithm uses two variables: flag and turn.A flag[n] value of true indicates that the process n wants to enter the critical section.Entrance to the critical section is granted for process P0 if P1 does not want to enter its critical section or if P1 has given priority to P0 by setting turn to 0.

  7. Lamport's bakery algorithm - Wikipedia

    en.wikipedia.org/wiki/Lamport's_bakery_algorithm

    The critical section is that part of code that requires exclusive access to resources and may only be executed by one thread at a time. In the bakery analogy, it is when the customer trades with the baker that others must wait. When a thread wants to enter the critical section, it has to check whether now is its turn to do so.

  8. Dining philosophers problem - Wikipedia

    en.wikipedia.org/wiki/Dining_philosophers_problem

    In computer science, the dining philosophers problem is an example problem often used in concurrent algorithm design to illustrate synchronization issues and techniques for resolving them. It was originally formulated in 1965 by Edsger Dijkstra as a student exam exercise, presented in terms of computers competing for access to tape drive ...

  9. Readers–writers problem - Wikipedia

    en.wikipedia.org/wiki/Readers–writers_problem

    V (); // let next in line be serviced < CRITICAL Section > // writing is performed < EXIT Section > resource. V (); // release resource access for next reader/writer } This solution can only satisfy the condition that "no thread shall be allowed to starve" if and only if semaphores preserve first-in first-out ordering when blocking and ...