In the following drawing, the RING mutual exclusion algorithm is running on a collection of processes, having the process ID written on them. Currently, the token is HELD by process 4 and the process 4 is current is in CS. While process 4 is holding the token, two more process 1 and 3 are also wanted to enter CS and waiting. What happens when process 4 releases the token? 5 1 3 2 Process 4 queues the requests from Process 1 and 3, and send the token to one of them as soon as its exits from CS Process 3 waits than Process 1 even though it is closer to Process 4 Process 1 and 3 send "request" for the token to process 4 Process 1 enters CS followed by Process 3

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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In the following drawing, the RING mutual exclusion algorithm is running on a
collection of processes, having the process ID written on them. Currently, the token is
HELD by process 4 and the process 4 is current is in CS. While process 4 is holding the
token, two more process 1 and 3 are also wanted to enter CS and waiting.
What happens when process 4 releases the token?
5
1
2
Process 4 queues the requests from Process 1 and 3, and send the token to one of them
as soon as its exits from CS
Process 3 waits than Process 1 even though it is closer to Process 4
Process 1 and 3 send "request" for the token to process 4
Process 1 enters CS followed by Process 3
Transcribed Image Text:In the following drawing, the RING mutual exclusion algorithm is running on a collection of processes, having the process ID written on them. Currently, the token is HELD by process 4 and the process 4 is current is in CS. While process 4 is holding the token, two more process 1 and 3 are also wanted to enter CS and waiting. What happens when process 4 releases the token? 5 1 2 Process 4 queues the requests from Process 1 and 3, and send the token to one of them as soon as its exits from CS Process 3 waits than Process 1 even though it is closer to Process 4 Process 1 and 3 send "request" for the token to process 4 Process 1 enters CS followed by Process 3
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