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pseudocode for the Ricart and Agrawala algorithm.

Muhammad Ali answered on July 3, 2023 Popularity 1/10 Helpfulness 1/10

answer pseudocode for the Ricart and Agrawala algorithm.

pseudocode for the Ricart and Agrawala algorithm.

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// Process initialization
state: int = RELEASED
requested: bool = false
replies: int = 0
pending_requests: set = {}

// Function for requesting the critical section
requestCriticalSection():
    state = WANTED
    replies = 0
    pending_requests = {}

    // Send request messages to all other processes
    for each process in processes:
        if process != self:
            sendRequest(process)

    // Wait until all replies are received
    while replies < (total_processes - 1):
        wait()

    // Entering critical section
    state = HELD

// Function for releasing the critical section
releaseCriticalSection():
    state = RELEASED

    // Send deferred requests
    for each process in pending_requests:
        sendReply(process)

    // Clear pending requests
    pending_requests = {}

// Function for handling request messages
receiveRequest(process):
    if state == HELD or (state == WANTED and process < self):
        // Defer the request and send a reply later
        pending_requests.add(process)
    else:
        // Send an immediate reply
        sendReply(process)

// Function for handling reply messages
receiveReply(process):
    if state == WANTED:
        // Count the replies
        replies = replies + 1

// Function for sending request messages
sendRequest(process):
    send(request, process)

// Function for sending reply messages
sendReply(process):
    send(reply, process)

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Source: chat.openai.com

Tags: pseudocode whatever

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Contributed on Jul 03 2023

Muhammad Ali

0 Answers Avg Quality 2/10

pseudocode for the Ricart and Agrawala algorithm.

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pseudocode for the Ricart and Agrawala algorithm.

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