The ready list RL contains processes 2 then 3. Consider (1), (2) as independent operations. РСВ З РСВО PCB 1 РСВ 2 process_state blocked blocked running ready -2 other_resources ... ... RCB 0 RCB 1 RCB 2 RCB 3 state free allocated allocated allocated waiting_list 1 (1) Process 2 requests resource 0. After the operation: Process 2 is Select v Resource O's waiting list Select Resource O is Select RL contains the processes Ex: 1, 2, 3 (2) Process 2 requests resource 3. After the operation: Process 2 is Select v Resource 3's waiting list Select Resource 3 is Select RL contains the processes Ex: 1, 2, 3
The ready list RL contains processes 2 then 3. Consider (1), (2) as independent operations. РСВ З РСВО PCB 1 РСВ 2 process_state blocked blocked running ready -2 other_resources ... ... RCB 0 RCB 1 RCB 2 RCB 3 state free allocated allocated allocated waiting_list 1 (1) Process 2 requests resource 0. After the operation: Process 2 is Select v Resource O's waiting list Select Resource O is Select RL contains the processes Ex: 1, 2, 3 (2) Process 2 requests resource 3. After the operation: Process 2 is Select v Resource 3's waiting list Select Resource 3 is Select RL contains the processes Ex: 1, 2, 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
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:The ready list RL contains processes 2 then 3. Consider (1), (2) as independent operations.
РСВ 1
РСВ О
РСВ 2
РСВ З
process_state blocked
blocked
running
ready
...
other_resources
1-3
RCB 0
RCB 1
RCB 2
RCB 3
...
...
...
...
state
free
allocated
allocated
allocated
waiting_list
...
(1) Process 2 requests resource 0. After the operation:
Process 2 is Select v
Resource O's waiting list Select
Resource 0 is Select
RL contains the processes Ex: 1, 2, 3
(2) Process 2 requests resource 3. After the operation:
Process 2 is Select v
Resource 3's waiting list Select
Resource 3 is Select
RL contains the processes Ex: 1, 2, 3
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