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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "PTHREAD_ATTR_GETSCHEDPOLICY" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" pthread_attr_getschedpolicy 
+.SH NAME
+pthread_attr_getschedpolicy, pthread_attr_setschedpolicy \- get and
+set the schedpolicy attribute (\fBREALTIME
+THREADS\fP)
+.SH SYNOPSIS
+.LP
+\fB#include <pthread.h>
+.br
+.sp
+int pthread_attr_getschedpolicy(const pthread_attr_t *restrict\fP
+\fIattr\fP\fB,
+.br
+\ \ \ \ \ \  int *restrict\fP \fIpolicy\fP\fB);
+.br
+int pthread_attr_setschedpolicy(pthread_attr_t *\fP\fIattr\fP\fB,
+int\fP \fIpolicy\fP\fB); \fP
+\fB
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIpthread_attr_getschedpolicy\fP() and \fIpthread_attr_setschedpolicy\fP()
+functions, respectively, shall get and set the
+\fIschedpolicy\fP attribute in the \fIattr\fP argument.
+.LP
+The supported values of \fIpolicy\fP shall include SCHED_FIFO, SCHED_RR,
+and SCHED_OTHER, which are defined in the \fI<sched.h>\fP header.
+When threads executing with the scheduling policy SCHED_FIFO,
+SCHED_RR,   \ or SCHED_SPORADIC  are waiting on a mutex, they
+shall acquire the mutex in priority order when the mutex is unlocked.
+.SH RETURN VALUE
+.LP
+If successful, the \fIpthread_attr_getschedpolicy\fP() and \fIpthread_attr_setschedpolicy\fP()
+functions shall return zero;
+otherwise, an error number shall be returned to indicate the error.
+.SH ERRORS
+.LP
+The \fIpthread_attr_setschedpolicy\fP() function may fail if:
+.TP 7
+.B EINVAL
+The value of \fIpolicy\fP is not valid.
+.TP 7
+.B ENOTSUP
+An attempt was made to set the attribute to an unsupported value.
+.sp
+.LP
+These functions shall not return an error code of [EINTR].
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+After these attributes have been set, a thread can be created with
+the specified attributes using \fIpthread_create\fP(). Using these
+routines does not affect the current running
+thread.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIpthread_attr_destroy\fP() , \fIpthread_attr_getscope\fP() , \fIpthread_attr_getinheritsched\fP()
+, \fIpthread_attr_getschedparam\fP() , \fIpthread_create\fP() , the
+Base Definitions volume of IEEE\ Std\ 1003.1-2001, \fI<pthread.h>\fP,
+\fI<sched.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .