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pthread_attr_setinheritsched(3c) [opensolaris man page]

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)

Check Out this Related Man Page

PTHREAD_ATTR(3) 					   BSD Library Functions Manual 					   PTHREAD_ATTR(3)

NAME
pthread_attr_getinheritsched, pthread_attr_setinheritsched -- thread attribute operations SYNOPSIS
#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
Thread attributes are used to specify parameters to pthread_create(). One attribute object can be used in multiple calls to pthread_create(), with or without modifications between calls. One of the thread attributes of interest is the "inheritsched" attribute. This attribute controls the scheduling policy and related attributes of the newly created thread. The values of the "inheritsched" attribute can be either PTHREAD_INHERIT_SCHED or PTHREAD_EXPLICIT_SCHED. PTHREAD_INHERIT_SCHED Indicates that the newly created thread should inherit all it's scheduling related attributes from it's creating thread. It ignores the values of the relevant attributes within the attr argument. PTHREAD_EXPLICIT_SCHED Indicates that the newly created thread should set it's scheduling related attributes based on attr argument. The pthread_attr_setinheritsched() functions set the "inheritsched" attribute within the attr argument to the desired value. The pthread_attr_getinheritsched() functions copy the value of the "inheritsched" attribute to the location pointed to by the second function parameter. RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is returned to indicate the error. ERRORS
pthread_attr_getinheritsched() will fail if: [EINVAL] Invalid value for attr. pthread_attr_setinheritsched() will fail if: [EINVAL] Invalid value for attr. BUGS
The "inheritsched" attribute has no effect on Darwin. It is provided for compatibility only. SEE ALSO
pthread_create(3), pthread_attr_init(3), pthread_attr_setschedparam(3) STANDARDS
pthread_attr_setinheritsched(), pthread_attr_getinheritsched() conform to Version 2 of the Single UNIX Specification (``SUSv2'') BSD
December 31, 2007 BSD

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