41 CRITICAL SECTION
DESCRIPTION
A Critical Section is a segment of code that must be executed by only one thread at a time to produce the expected results. When more than one thread is allowed to execute this code segment, it could produce unpredictable results. By this definition, a critical section looks very similar to the concept of a Monitor discussed in Section III — Basic Patterns. The following is the list of similarities and differences between Monitors and Critical Sections:
- A Critical Section is a stricter form of a Monitor.
- A Monitor locks a single object whereas a Critical Section requires a lock on an entire class of objects.
- In Java:
- The implementation of a Monitor on a method requires the method to be declared using the synchronized ...
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