pthread_attr_setsched man page on Ultrix

pthread_attr_setsched man page on Ultrix

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pthread_attr_setsched(3thr)			   pthread_attr_setsched(3thr)

Name
       pthread_attr_setsched  -	 Changes  the  scheduling  policy attribute of
       thread creation.

Syntax
       #include <pthread.h>

       int pthread_attr_setsched (attr, scheduler)
       pthread_attr_t *attr;
       int scheduler;

Arguments
       attr    Thread attributes object modified.

       scheduler
	       New value for the scheduling policy attribute. (Policies listed
	       on the same line are equivalent.) Valid values are as follows:

	       SCHED_FIFO

	       SCHED_RR

	       SCHED_FG_NP or SCHED_OTHER

	       SCHED_BG_NP

Description
       This  routine  sets  the	 scheduling policy of a thread that is created
       using the attributes object specified by the attr argument. The default
       value of the scheduling attribute is SCHED_OTHER.

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	[EINVAL]   The value specified
			   by attr is invalid.

       -1	[ESRCH]	   The value specified
			   by  attr  does  not
			   refer to an	exist‐
			   ing		thread
			   attributes object.

						   pthread_attr_setsched(3thr)

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