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Following diagram shows two groups of threads that are running as the shown sequences. In each case, thread 1 will first get the lock A and then get the lock B, while thread 2 is grabbing the locks in the opposite ways. For case 1, the threads will not abandon or keep on executing before all locks are grabbed, while in case 2, all threads will try to grab the lock and wait for a certain time. If the locks can’t be grabbed in time, thread 1 (in case 2) will abandon the execution and unlock all the locks before exit. Will it cause deadlock and livelock problems in each case? Why?

Following diagram shows two groups of threads that are running as the shown sequences. In each case, thread 1 will first get the lock A and then get the lock B, while thread 2 is grabbing the locks in the opposite ways. For case 1, the threads will not abandon or keep on executing before all locks are grabbed, while in case 2, all threads will try to grab the lock and wait for a certain time. If the locks can’t be grabbed in time, thread 1 (in case 2) will abandon the execution and unlock all the locks before exit. Will it cause deadlock and livelock problems in each case? Why?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Following diagram shows two groups of threads that are running as the shown sequences. In each case, thread 1 will first get the lock A and then get the lock B, while thread 2 is grabbing the locks in the opposite ways. For case 1, the threads will not abandon or keep on executing before all locks are grabbed, while in case 2, all threads will try to grab the lock and wait for a certain time. If the locks can’t be grabbed in time, thread 1 (in case 2) will abandon the execution and unlock all the locks before exit. Will it cause deadlock and livelock problems in each case? Why?
Thread 1 Grab Lock A Grab Lock B Execution Unlock Thread 2 Grab Lock B Grab Lock A Execution Unlock Case 1 Abandon Try Grab Try Grab Thread 1 when Unlock Lock A Lock B timeout Try Grab Try Grab Lock A Thread 2 Execution Unlock Lock B Case 2
Transcribed Image Text:Thread 1 Grab Lock A Grab Lock B Execution Unlock Thread 2 Grab Lock B Grab Lock A Execution Unlock Case 1 Abandon Try Grab Try Grab Thread 1 when Unlock Lock A Lock B timeout Try Grab Try Grab Lock A Thread 2 Execution Unlock Lock B Case 2
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