'\" te
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.TH pthread_attr_setname_np  3C "12 Feb 2015" "SunOS 5.11" "Standard C Library Functions"
.SH NAME
pthread_attr_setname_np, pthread_attr_getname_np \- set and get the thread name
.SH SYNOPSIS
.LP
.nf
#include <pthread.h>
.fi

.LP
.nf
\fBint\fR \fIpthread_attr_setname_np\fR(\fBpthread_attr_t\fR \fI*attr\fR, \fBconst char\fR \fI*name\fR);
.fi

.LP
.nf
\fBint\fR \fIpthread_attr_getname_np\fR(\fBpthread_attr_t\fR \fI*attr\fR, \fBchar\fR \fI*buf\fR, \fBsize_t\fR \fIlen\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBpthread_attr_setname_np()\fR and \fBpthread_attr_getname_np()\fR	functions are used to set and get the \fBthreadname\fR attribute in the \fBattr\fR object.  The default value for this attribute is NULL. The maximum length of the \fBthreadname\fR attribute is 31 bytes, UTF-8 encoded.
.sp
.LP
For \fBpthread_attr_setname_np()\fR, if the length of the name is greater than 31, the excess bytes are silently ignored. For \fBpthread_attr_getname_np()\fR, at most \fBlen-1\fR non-null characters are copied into \fBbuf\fR. The returned thread name will be null-terminated.
.SH RETURN VALUES
.sp
.LP
Upon successful completion, these functions return a 0; otherwise, an error number is returned to indicate the error.
.SH ERRORS
.sp
.LP
The \fBpthread_attr_setname_np()\fR function will fail if:
.sp
.ne 2
.mk
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 10n
.rt  
\fBattr\fR is NULL.
.RE

.sp
.LP
The \fBpthread_attr_getname_np()\fR function may fail if:
.sp
.ne 2
.mk
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 10n
.rt  
\fBattr\fR or \fBbuf\fR is NULL.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBpthread_attr_init\fR(3C), \fBpthread_setname_np\fR(3C), \fBthreads\fR(5), \fBattributes\fR(5)