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POSIX

POSIX is a registered trademark from the IEEE. The following assertions are derived from copyrighted material. Original text and copyright information can be found at http://www.opengroup.org.

Here is what POSIX requires for this function:

1. pthread_mutex_init() can be used to re-initialize a destroyed mutex.
   
2. It is safe to destroy an initialized unlocked mutex.
   
3. The function must not return EINTR.
   

NOTE: there are three more assertions which cannot be tested without knowing the implementation details:

• When the function succeeds, the mutex becomes uninitialized.
  
• When the function succeeds, it must return 0.
  
• When the function fails, is must return non-zero.
  

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Conformance Status

• Assertion 1 is tested only with default attribute mutex. A new testcase will be written.
  
• Assertion 2 is tested only with default attribute mutex. A new testcase will be written.
  
• Assertion 3 is already tested in the pthread_mutex_init() tests and does not need an additional test.
  

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Scalability and Stress status

Scalability has no meaning for this function.

Stress issues are already covered in the pthread_mutex_init routine tests.

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Conformance tests

The following conformance tests have been added to the Open POSIX testsuite:

• 2-2.c
  
• 5-2.c