Ch6

Module 6: Process Synchronization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Background ,[object Object],[object Object],[object Object],[object Object]

Bounded-Buffer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bounded-Buffer (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Critical-Section Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solution to Critical-Section Problem ,[object Object],[object Object],[object Object],[object Object],[object Object]

Initial Attempts to Solve Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Algorithm 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Algorithm 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Algorithm 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bakery Algorithm ,[object Object],[object Object],[object Object],Critical section for n processes

Bakery Algorithm (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bakery Algorithm (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Synchronization Hardware ,[object Object],[object Object],[object Object],[object Object],[object Object]

Mutual Exclusion with Test-and-Set ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Semaphore ,[object Object],[object Object],[object Object],[object Object],[object Object]

Example: Critical Section of n Processes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Semaphore Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Implementation (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Semaphore as General Synchronization Tool ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Deadlock and Starvation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Two Types of Semaphores ,[object Object],[object Object],[object Object]

Implementing S as a Binary Semaphore ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Implementing S (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Classical Problems of Synchronization ,[object Object],[object Object],[object Object]

Bounded-Buffer Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bounded-Buffer Problem (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bounded-Buffer Problem (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Readers-Writers Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Readers-Writers Problem (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dining-Philosophers Problem ,[object Object],[object Object]

Dining-Philosophers Problem (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Critical Regions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Critical Regions (Cont.) ,[object Object],[object Object]

Example – Bounded Buffer ,[object Object],[object Object],[object Object],[object Object],[object Object]

Bounded Buffer Example (Cont.) ,[object Object],[object Object]

Implementation: region x when B do S ,[object Object],[object Object],[object Object],[object Object]

Implementation (Cont.) ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Monitors

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Monitors (Cont.)

Monitor with condition variables

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Dining Philosophers Example

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Dining Philosophers (Cont.)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Monitor Implementation Using Semaphores

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Monitor Implementation (Cont.)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Monitor Implementation (Cont.)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Monitor Implementation (Cont.)

[object Object],[object Object],[object Object],Solaris 2 Operating System

Ch6

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