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+'\" et
+.TH PTHREAD_ATTR_GETSCHEDPARAM "3P" 2013 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+
+.SH NAME
+pthread_attr_getschedparam,
+pthread_attr_setschedparam
+\(em get and set the schedparam attribute
+.SH SYNOPSIS
+.LP
+.nf
+#include <pthread.h>
+.P
+int pthread_attr_getschedparam(const pthread_attr_t *restrict \fIattr\fP,
+    struct sched_param *restrict \fIparam\fP);
+int pthread_attr_setschedparam(pthread_attr_t *restrict \fIattr\fP,
+    const struct sched_param *restrict \fIparam\fP);
+.fi
+.SH DESCRIPTION
+The
+\fIpthread_attr_getschedparam\fR()
+and
+\fIpthread_attr_setschedparam\fR()
+functions, respectively, shall get and set the scheduling parameter
+attributes in the
+.IR attr
+argument. The contents of the
+.IR param
+structure are defined in the
+.IR <sched.h> 
+header. For the SCHED_FIFO and SCHED_RR policies,
+the only required member of
+.IR param
+is
+.IR sched_priority .
+.P
+For the SCHED_SPORADIC policy, the required members of the
+.IR param
+structure are
+.IR sched_priority ,
+.IR sched_ss_low_priority ,
+.IR sched_ss_repl_period ,
+.IR sched_ss_init_budget ,
+and
+.IR sched_ss_max_repl .
+The specified
+.IR sched_ss_repl_period
+must be greater than or equal to the specified
+.IR sched_ss_init_budget
+for the function to succeed; if it is not, then the function shall
+fail. The value of
+.IR sched_ss_max_repl
+shall be within the inclusive range [1,\c
+{SS_REPL_MAX}]
+for the function to succeed; if not, the function shall fail.
+It is unspecified whether the
+.IR sched_ss_repl_period
+and
+.IR sched_ss_init_budget
+values are stored as provided by this function or are rounded to
+align with the resolution of the clock being used.
+.P
+The behavior is undefined if the value specified by the
+.IR attr
+argument to
+\fIpthread_attr_getschedparam\fR()
+or
+\fIpthread_attr_setschedparam\fR()
+does not refer to an initialized thread attributes object.
+.SH "RETURN VALUE"
+If successful, the
+\fIpthread_attr_getschedparam\fR()
+and
+\fIpthread_attr_setschedparam\fR()
+functions shall return zero; otherwise, an error number shall be
+returned to indicate the error.
+.SH ERRORS
+The
+\fIpthread_attr_setschedparam\fR()
+function shall fail if:
+.TP
+.BR ENOTSUP
+An attempt was made to set the attribute to an unsupported value.
+.P
+The
+\fIpthread_attr_setschedparam\fR()
+function may fail if:
+.TP
+.BR EINVAL
+The value of
+.IR param
+is not valid.
+.P
+These functions shall not return an error code of
+.BR [EINTR] .
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+After these attributes have been set, a thread can be created with the
+specified attributes using
+\fIpthread_create\fR().
+Using these routines does not affect the current running thread.
+.SH RATIONALE
+If an implementation detects that the value specified by the
+.IR attr
+argument to
+\fIpthread_attr_getschedparam\fR()
+or
+\fIpthread_attr_setschedparam\fR()
+does not refer to an initialized thread attributes object, it is
+recommended that the function should fail and report an
+.BR [EINVAL] 
+error.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.ad l
+.IR "\fIpthread_attr_destroy\fR\^(\|)",
+.IR "\fIpthread_attr_getscope\fR\^(\|)",
+.IR "\fIpthread_attr_getinheritsched\fR\^(\|)",
+.IR "\fIpthread_attr_getschedpolicy\fR\^(\|)",
+.IR "\fIpthread_create\fR\^(\|)"
+.ad b
+.P
+The Base Definitions volume of POSIX.1\(hy2008,
+.IR "\fB<pthread.h>\fP",
+.IR "\fB<sched.h>\fP"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, Copyright (C) 2013 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group.
+(This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/online.html .
+
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .