1 <assertions> 2 <assertion id="1" tag="ref:XSH6:31924:31925"> 3 The pthread_barrierattr_getpshared( ) function shall obtain the value of the process-shared 4 attribute from the attributes object referenced by attr. 5 </assertion> 6 7 <assertion id="2" tag="ref:XSH6:31927:31934"> 8 The process-shared attribute is set to PTHREAD_PROCESS_SHARED to permit a barrier to be 9 operated upon by any thread that has access to the memory where the barrier is allocated. 10 If the process-shared attribute is PTHREAD_PROCESS_PRIVATE, the barrier shall only be operated 11 upon by threads created within the same process as the thread that initialized the barrier; if 12 threads of different processes attempt to operate on such a barrier, the behavior is undefined. 13 The default value of the attribute shall be PTHREAD_PROCESS_PRIVATE. Both constants 14 PTHREAD_PROCESS_SHARED and PTHREAD_PROCESS_PRIVATE are defined in "pthread.h". 15 </assertion> 16 17 <assertion id="3" tag="ref:XSH6:31938:31940"> 18 If successful, the pthread_barrierattr_getpshared( ) function shall return zero and store the 19 value of the process-shared attribute of attr into the object referenced by the pshared 20 parameter. Otherwise, an error number shall be returned to indicate the error. 21 </assertion> 22 23 <assertion id="4" tag="ref:XSH6:31944:31945"> 24 These functions may fail if: 25 [EINVAL] The value specified by attr is invalid. 26 These functions shall not return an error code of EINTR. 27 </assertion> 28 </assertions> 29 30
