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

\fBint\fR \fBpthread_setname_np\fR(\fBpthread_t\fR \fIt\fR, \fBconst char\fR \fI*name\fR );
\fBint\fR \fBpthread_getname_np\fR(\fBpthread_t\fR \fIt\fR, \fBchar\fR \fI*buf\fR, \fBsize_t\fR \fIlen\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBpthread_setname_np()\fR function associates a name with a thread \fBt\fR. The thread name is a string of length 31 bytes or 	less, UTF-8 encoded. If the length of name is greater than 31, the excess bytes are silently ignored.
.sp
.LP
The \fBpthread_getname_np()\fR function returns the name of the specified thread \fBt\fR in \fBbuf\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
If successful, the \fBpthread_setname_np()\fR and \fBpthread_getname_np()\fR functions return 0. Otherwise, an error number is returned to indicate the error. It is not an error for the target thread to be a zombie thread.
.SH ERRORS
.sp
.LP
The \fBpthread_setname_np()\fR and \fBpthread_getname_np()\fR function will fail if:
.sp
.ne 2
.mk
.na
\fB\fBESRCH\fR\fR
.ad
.RS 9n
.rt  
The value specified by thread does not refer to an existing thread.
.RE

.sp
.LP
The \fBpthread_getname_np()\fR function will fail if:
.sp
.ne 2
.mk
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 10n
.rt  
\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_attr_setname_np\fR(3C), \fBthreads\fR(5), \fBattributes\fR(5), \fBstandards\fR(5)