A Thread Using POSIX Condition Variables, a Thread

question 24

Multiple Choice

A thread using POSIX condition variables, a thread

• A) must lock the associated mutex lock before calling pthread_cond_wait( ) and unlock it after calling pthread_cond_signal( ).
• B) must lock the associated mutex lock before calling pthread_cond_wait( ), but doesn't need to unlock it after calling pthread_cond_signal( ).
• C) doesn't need to lock the associated mutex lock before calling pthread_cond_wait( ), but must unlock it after calling pthread_cond_signal( ).
• D) doesn't need to lock the associated mutex lock before calling pthread_cond_wait( ) and doesn't need to unlock it after calling pthread_cond_signal( ).

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Definitions:

Dental Hygiene

The practice of keeping the mouth, teeth, and gums clean and healthy to prevent disease.

White Teeth

Refers to teeth that appear very light in color, often considered desirable in many cultures for cosmetic reasons.

Explanandum

The aspect of a phenomenon that is being explained, or the question that an explanation seeks to answer.

Complex

Consisting of many different and connected parts.