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OSCh7

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Joe Christensen
Joe Christensen
TechnologieSeele & Geist
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Chapter 7: Process Synchronization ,[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]
Bounded-Buffer ,[object Object],[object Object],[object Object],[object Object],[object Object],[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]
Bounded Buffer ,[object Object],[object Object]
Bounded Buffer ,[object Object],[object Object],[object Object]
Bounded Buffer ,[object Object],[object Object]
Bounded Buffer ,[object Object],[object Object]
Race Condition ,[object Object],[object Object]
The Critical-Section Problem ,[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]
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 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Bakery Algorithm ,[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],[object Object]
Mutual Exclusion with Test-and-Set ,[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],[object Object]
Mutual Exclusion with Swap ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Semaphores ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Critical Section of n Processes ,[object Object],[object Object],[object Object],[object Object],[object Object]
Semaphore Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Semaphore as a 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]
Implementing S ,[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]
Bounded-Buffer Problem Producer Process ,[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 Problem Consumer Process ,[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]
Readers-Writers Problem Writer Process ,[object Object],[object Object],[object Object],[object Object],[object Object]
Readers-Writers Problem Reader Process ,[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 Problem ,[object Object],[object Object],[object Object]
Dining-Philosophers Problem ,[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],[object Object]
Critical Regions ,[object Object],[object Object]
Example – Bounded Buffer ,[object Object],[object Object],[object Object],[object Object],[object Object]
Bounded Buffer Producer Process ,[object Object],[object Object]
Bounded Buffer Consumer Process ,[object Object],[object Object]
Implementation region x when B do S ,[object Object],[object Object],[object Object],[object Object]
Implementation ,[object Object],[object Object],[object Object]
Monitors ,[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]
Schematic View of a Monitor
Monitor With Condition Variables
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]
Dining Philosophers ,[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 ,[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],[object Object],[object Object],[object Object],[object Object]
Monitor Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monitor Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monitor Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solaris 2 Synchronization ,[object Object],[object Object],[object Object],[object Object]
Windows 2000 Synchronization ,[object Object],[object Object],[object Object],[object Object]

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