Threading Models and Critical Sections

The following classes define a threading model and critical section:

• CComMultiThreadModel   Provides thread-safe methods for incrementing and decrementing a variable. Provides a critical section.
  
  
• CComMultiThreadModelNoCS   Provides thread-safe methods for incrementing and decrementing a variable. Does not provide a critical section.
  
  
• CComSingleThreadModel   Provides methods for incrementing and decrementing a variable. Does not provide a critical section.
  
  
• CComObjectThreadModel   Determines the appropriate threading-model class for a single object class.
  
  
• CComGlobalsThreadModel   Determines the appropriate threading-model class for an object that is globally available.
  
  
• CComAutoCriticalSection   Contains methods for obtaining and releasing a critical section. The critical section is automatically initialized.
  
  
• CComCriticalSection   Contains methods for obtaining and releasing a critical section. The critical section must be explicitly initialized.
  
  
• CComFakeCriticalSection   Mirrors the methods in CComCriticalSection without providing a critical section. The methods in CComFakeCriticalSection do nothing.

ATL Class Overview