VMS Help DCE_THREADS, Application Routines, pthread_mutexattr_create *Conan The Librarian (sorry for the slow response - running on an old VAX) |
NAME pthread_mutexattr_create - Creates a mutex attributes object SYNOPSIS #include <pthread.h> int pthread_mutexattr_create( pthread_mutexattr_t *attr ); PARAMETERS attr Mutex attributes object created. DESCRIPTION The pthread_mutexattr_create() routine creates a mutex attributes object used to specify the attributes of mutexes when they are created. The mutex attributes object is initialized with the default value for all of the attributes defined by a given implementation. When a mutex attributes object is used to create a mutex, the values of the individual attributes determine the characteristics of the new object. Attributes objects act like additional parameters to object creation. Changing individual attributes does not affect any objects that were previously created using the attributes object. RETURN VALUES The created mutex attributes object is returned to the attr parameter. If the function fails, errno may be set to one of the following values: Return Error Description ___________________________________________________ 0 Successful completion. -1 [EINVAL] The value specified by attr is invalid. -1 [ENOMEM] Insufficient memory exists to create the mutex attributes object. RELATED INFORMATION FUNCTIONS: pthread_create pthread_mutexattr_delete pthread_mutexattr_getkind_np pthread_mutexattr_setkind_np pthread_mutex_init
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