Example: P₁ Request (1,0,2) • First, we Check that Request≤ Available (that is, (1,0,2) ≤ (3,3,2) ⇒ true) Allocation Need Available ABC ABC ABC Po 010 743 230 P₁302 020 P₂ 302 600 P3 211 011 P₁002 431 te our . Second, We must determine whether this new system state is safe. So, we safety algorithm and find that the sequence satisfies the safety requirement.
Example: P₁ Request (1,0,2) • First, we Check that Request≤ Available (that is, (1,0,2) ≤ (3,3,2) ⇒ true) Allocation Need Available ABC ABC ABC Po 010 743 230 P₁302 020 P₂ 302 600 P3 211 011 P₁002 431 te our . Second, We must determine whether this new system state is safe. So, we safety algorithm and find that the sequence satisfies the safety requirement.
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:Example: P₁ Request (1,0,2)
• First, we Check that Request ≤ Available (that is, (1,0,2) ≤ (3,3,2) ⇒ true)
Allocation Need Available
ABC
ABC
ABC
Po 010
743
230
P1 302
020
P₂
302
600
P3
211
011
РА 002
431
●
Second, We must determine whether this new system state is safe. So, we execute our
safety algorithm and find that the sequence <P1, P3, P4, PO, P2> satisfies the safety
requirement.
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