pthread_attr_create(3thr)pthread_attr_create(3thr)Namepthread_attr_create - Creates a thread attributes object that is used
to specify the attributes of threads when they are created.
Syntax
#include <pthread.h>
int pthread_attr_create (attr)
pthread_attr_t *attr;
Arguments
attr Thread attributes object created.
Description
This routine creates a thread attributes object that is used to specify
the attributes of threads when they are created. The attributes object
created by this routine is only used in calls to pthread_create.
The individual attributes (internal fields) of the attributes object
are set to default values. (The default values of each attribute are
discussed in the descriptions of the following routines.) Use the fol‐
lowing routines to change the individual attributes:
pthread_attr_setinheritsched
pthread_attr_setprio
pthread_attr_setsched
pthread_attr_setstacksize
When an attributes object is used to create a thread, the values of the
individual attributes determine the characteristics of the new object.
Attributes objects perform similar to additional arguments to object
creation. Changing individual attributes does not affect any objects
that were previously created using the attributes object.
Return Values
If an error condition occurs, this routine returns -1 and sets errno to
the corresponding error value. Possible return values are as follows.
Return Error Description
0 Successful comple‐
tion.
-1 [ENOMEM] Insufficient memory
exists to create
the thread
attributes object.
-1 [EINVAL] The value specified
by attr is invalid.
pthread_attr_create(3thr)
