pthread functions "_np" suffix

Posted by osgx on Stack Overflow See other posts from Stack Overflow or by osgx
Published on 2010-02-10T16:41:08Z Indexed on 2010/04/02 23:23 UTC
Read the original article Hit count: 236

Filed under:

pthreads

|

glibc

|

posix

What does "_np" suffix mean here:

pthread_mutex_timedlock_np

or in macros

PTHREAD_MUTEX_TIMED_NP

Upd:

From glibc2.2

enum 
{ 
  PTHREAD_MUTEX_TIMED_NP, 
  PTHREAD_MUTEX_RECURSIVE_NP, 
  PTHREAD_MUTEX_ERRORCHECK_NP, 
  PTHREAD_MUTEX_ADAPTIVE_NP 
#ifdef __USE_UNIX98 
  , 
  PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP, 
  PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP, 
  PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP, 
  PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL 
#endif 
#ifdef __USE_GNU 
  /* For compatibility. */ 
  , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_ADAPTIVE_NP 
#endif 
};

Does defining __USE_UNIX98 change portability of _NP functions/macro?

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