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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_join() returns only when the joined thread has terminated.
   
2. The thread return value is accessible if the value_ptr parameter is not null.
   
3. If the thread calling pthread_join is canceled, the joined thread remains joinable.
   
4. ESRCH is returned when no thread correspond to the given thread ID.
   
5. The function does not return EINTR.
   

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Conformance Status

• Assertion 1 is partially tested in the OPTS. A new testcase will be written to test the non-default attributes in thread creation.
  
• Assertion 2 is already well tested in the pthread_exit test routines, and therefore does not need more testing here. See this thread for details.
  
• Assertion 3 is not yet tested in OPTS. A new testcase will be written here.
  
• Assertion 4 is already tested in OPTS and does not need more testing.
  
• Assertion 5 is not tested yet. A new testcase will be written.
  

Note: The 6-1.c test in OPTS becomes speculative as the tested feature has become optional since POSIX Issue 6 Technical Corrigendum 2.

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Scalability and Stress status

These issues are covered in pthread_create() tests and no additional tests will be written.

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Conformance Tests

New conformance tests for this function have been written and submitted to the Open POSIX Test Suite. Find source code there:

• 1-2.c
  
• 4-1.c
  
• 6-3.c