pthread_attr_getinheritsched(3C) Standard C Library Functions pthread_attr_getinheritsched(3C)
NAME
pthread_attr_getinheritsched, pthread_attr_setinheritsched - get or set inheritsched attribute
SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ]
#include <pthread.h>
int pthread_attr_getinheritsched(const pthread_attr_t *restrict attr,
int *restrict inheritsched);
int pthread_attr_setinheritsched(pthread_attr_t *attr, int inheritsched);
DESCRIPTION
The functions pthread_attr_setinheritsched() and pthread_attr_getinheritsched(), respectively, set and get the inheritsched attribute in
the attr argument.
When the attribute objects are used by pthread_create(), the inheritsched attribute determines how the other scheduling attributes of the
created thread are to be set:
PTHREAD_INHERIT_SCHED Specifies that the scheduling policy and associated attributes are to be inherited from the creating thread, and
the scheduling attributes in this attr argument are to be ignored.
PTHREAD_EXPLICIT_SCHED Specifies that the scheduling policy and associated attributes are to be set to the corresponding values from
this attribute object.
The symbols PTHREAD_INHERIT_SCHED and PTHREAD_EXPLICIT_SCHED are defined in the header <pthread.h>.
RETURN VALUES
If successful, the pthread_attr_setinheritsched() and pthread_attr_getinheritsched() functions return 0. Otherwise, an error number is
returned to indicate the error.
ERRORS
The pthread_attr_setinheritsched() or pthread_attr_getinheritsched() functions may fail if:
EINVAL attr or inheritsched is invalid.
USAGE
After these attributes have been set, a thread can be created with the specified attributes using pthread_create(). Using these routines
does not affect the current running thread.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
pthread_attr_getschedparam(3C), pthread_attr_init(3C), pthread_attr_setscope(3C), pthread_attr_setschedpolicy(3C), pthread_create(3C),
pthread_setschedparam(3C), attributes(5), standards(5)
SunOS 5.11 23 Mar 2005 pthread_attr_getinheritsched(3C)