Content-type: text/html Man page of pthread_attr_getinheritsched

pthread_attr_getinheritsched

Section: Standard C Library Functions (3C)
Updated: 23 Mar 2005
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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 TYPEATTRIBUTE VALUE
Interface StabilityStandard
MT-LevelMT-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)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
ERRORS
USAGE
ATTRIBUTES
SEE ALSO

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Time: 02:37:26 GMT, October 02, 2010