Open System Services System Calls Reference Manual (G06.25+, H06.03+)

System Functions (n - p) pthread_attr_setschedparam(2)

SCHED_FG_NP

PRI_FG_MIN_NP to PRI_FG_MAX_NP

SCHED_BG_NP

PRI_BG_MIN_NP to PRI_BG_MAX_NP

The default priority is 24.

RETURN VALUES

If an error condition occurs, this function returns an integer value indicating the type of error.

Possible return values ares:

0 Successful completion.

[EINVAL] The value speciﬁed by the attr parameter is not a valid thread attributes object or

the value speciﬁed by param is invalid.

[ENOTSUP] An attempt was made to set the attribute to an unsupported value.

RELATED INFORMATION

Functions: pthread_attr_init(2), pthread_attr_getschedparam(2),

pthread_attr_setinheritsched(2), pthread_attr_setschedpolicy(2), pthread_create(2),

sched_yield(2), sched_get_priority_max(2), sched_get_priority_min(2).

STANDARDS CONFORMANCE

This function is an extension to the XPG4 Version 2 speciﬁcation. Interfaces documented on this

reference page conform to the following industry standards:

• IEEE Std 1003.1c-1995, POSIX System Application Program Interface

The use of the header ﬁle spthread.h is an HP exception to the POSIX standard.

527186-003 Hewlett-Packard Company 5−35