Resources

A resource is anything that must be acquired, used and released over the course of time. Resources are of two types:

• Preemptable: It is the type of resource which can be taken away from the process owning it with no ill effects
• Nonpreemptable: It is the type of resource that cannot be taken away from its current owner without potentially causing failure.

In general deadlocks involve nonpreemptable resources. Potential deadlocks that involve preemptable resources can usually be resolved by reallocating the resources from one process to another.
Sequence of events required to use a resource:

• Request the resource
• Use the Resource
• Release the resource

Resource Acquisition

Source Code

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External Links

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Homework

1. Study lectures!