PM35085: WITH _OPEN_THREADS 3 , PTHREAD.H IS MISSING SOME DEFINES

APAR status

• Closed as fixed if next.

Error description

• When _OPEN_THREADS 3 is defined, all pthread functions
  required for the Threads option of Single UNIX Specification,
  Version 3 are exposed, although behavior and function
  signatures are still based on the POSIX.4a draft 6
  specification.
  
  The header file seem to be expose all the required functions.
  But the related defines/constants do not seem to be exposed.
  Missing defines are
  PTHREAD_CANCEL_CANCELED
  PTHREAD_COND_INITIALIZER
  PTHREAD_CREATE_DETACHED
  PTHREAD_CREATE_JOINABLE
  PTHREAD_EXPLICIT_SCHED
  
  These are exposed when SUSv3 functionality is requested via
  feature test macros (FTM) _XOPEN_SOURCE 600 or _UNIX03_THREADS.
  

Local fix

• if the application really intended to be SUSv3 standard, use
  define _XOPEN_SOURCE 600 or _UNIX03_THREADS.
  if application is intended for POSIX.4a draft 6, define these
  constants in the application itself based on how they are
  defined in pthread.h for SUSV3_THR
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Multithreaded C/C++ applications that        *
  *                 are compiled with Feature Test Macro         *
  *                 _OPEN_THREADS defined to a value of 3.       *
  ****************************************************************
  * PROBLEM DESCRIPTION: The feature test macro _OPEN_THREADS    *
  *                      enables a level of granularity for      *
  *                      applications using threads support      *
  *                      from the C run-time library.  By        *
  *                      defining _OPEN_THREADS 3, applications  *
  *                      expect access to the POSIX.4a Draft6    *
  *                      threads namespace and behavior with     *
  *                      the addition of functions and symbols   *
  *                      provided to support Single Unix         *
  *                      Specification Version 3.                *
  *                                                              *
  *                      However, the pthread.h header does not  *
  *                      expose the following symbols with the   *
  *                      definition of _OPEN_THREADS 3:          *
  *                                                              *
  *                      PTHREAD_CANCELED                        *
  *                      PTHREAD_COND_INITIALIZER                *
  *                      PTHREAD_CREATE_DETACHED                 *
  *                      PTHREAD_CREATE_JOINABLE                 *
  *                      PTHREAD_EXPLICIT_SCHED                  *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  See Problem Description.
  

Problem conclusion

Temporary fix

Comments

• This APAR is being closed FIN with concurrence from the
  submitting customer. This means that a fix to this APAR is
  expected to be delivered from IBM in a release (if any) to be
  available within the next 24 months.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  LE C LIBRARY

• Fixed component ID

  568819805

Applicable component levels

• R750 PSN

     UP

• R760 PSN

     UP

• R770 PSN

     UP