add a pthread_get_name_np to match pthread_set_name_np.

could be useful in ports.
initial diff by David Carlier some time ago.
ok jca

6 files changed, 25 insertions, 7 deletions

diff --git a/lib/libpthread/man/pthread_set_name_np.3 b/lib/libpthread/man/pthread_set_name_np.3
index cb92f49f791..5c797b05ac3 100644
--- a/lib/libpthread/man/pthread_set_name_np.3
+++ b/lib/libpthread/man/pthread_set_name_np.3
@@ -1,6 +1,6 @@
-.\" $OpenBSD: pthread_set_name_np.3,v 1.6 2014/03/06 17:42:25 jmc Exp $
+.\" $OpenBSD: pthread_set_name_np.3,v 1.7 2019/02/04 17:18:08 tedu Exp $
 .\" David Leonard <d@openbsd.org>, 1999. Public domain.
-.Dd $Mdocdate: March 6 2014 $
+.Dd $Mdocdate: February 4 2019 $
 .Dt PTHREAD_SET_NAME_NP 3
 .Os
 .Sh NAME
@@ -11,6 +11,8 @@
 .In pthread_np.h
 .Ft void
 .Fn pthread_set_name_np "pthread_t thread" "const char *name"
+.Ft void
+.Fn pthread_get_name_np "pthread_t thread" "char *name" "size_t len"
 .Sh DESCRIPTION
 The
 .Fn pthread_set_name_np
@@ -26,6 +28,11 @@ signal.
 The string pointed to by
 .Fa name
 is copied, and so need not be valid for the life of the thread.
+.Fn pthread_get_name_np
+function retrieves
+.Fa name
+associated with
+.Fa thread .
 .Sh SEE ALSO
 .Xr pthreads 3
 .Sh STANDARDS
diff --git a/lib/libpthread/man/pthreads.3 b/lib/libpthread/man/pthreads.3
index b3ad565c4e8..000ddd3ca22 100644
--- a/lib/libpthread/man/pthreads.3
+++ b/lib/libpthread/man/pthreads.3
@@ -1,6 +1,6 @@
-.\" $OpenBSD: pthreads.3,v 1.41 2013/07/16 15:21:11 schwarze Exp $
+.\" $OpenBSD: pthreads.3,v 1.42 2019/02/04 17:18:08 tedu Exp $
 .\" David Leonard <d@openbsd.org>, 1998. Public domain.
-.Dd $Mdocdate: July 16 2013 $
+.Dd $Mdocdate: February 4 2019 $
 .Dt PTHREADS 3
 .Os
 .Sh NAME
@@ -169,6 +169,8 @@ The functions available are as follows:
 Identify the main thread.
 .It Fn pthread_set_name_np
 Set the name of a thread.
+.It Fn pthread_get_name_np
+Get the name of a thread
 .It Fn pthread_stackseg_np
 Return stack size and location.
 .It Fn pthread_yield
@@ -421,6 +423,7 @@ with larger numbers generating more verbose output.
 .Xr pthread_detach 3 ,
 .Xr pthread_equal 3 ,
 .Xr pthread_exit 3 ,
+.Xr pthread_get_name_np 3 ,
 .Xr pthread_getcpuclockid 3 ,
 .Xr pthread_getspecific 3 ,
 .Xr pthread_join 3 ,
diff --git a/lib/librthread/Symbols.map b/lib/librthread/Symbols.map
index da37e9f787a..98502073633 100644
--- a/lib/librthread/Symbols.map
+++ b/lib/librthread/Symbols.map
@@ -33,6 +33,7 @@
 		pthread_cleanup_push;
 		pthread_create;
 		pthread_detach;
+		pthread_get_name_np;
 		pthread_getconcurrency;
 		pthread_getcpuclockid;
 		pthread_getprio;
diff --git a/lib/librthread/pthread_np.h b/lib/librthread/pthread_np.h
index 1f110fc0186..771d5a68046 100644
--- a/lib/librthread/pthread_np.h
+++ b/lib/librthread/pthread_np.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pthread_np.h,v 1.1 2016/04/02 19:56:53 guenther Exp $	*/
+/*	$OpenBSD: pthread_np.h,v 1.2 2019/02/04 17:18:08 tedu Exp $	*/
 /*
  * Copyright (c) 2016 Philip Guenther <guenther@openbsd.org>
  *
@@ -23,6 +23,7 @@
 PROTO_DEPRECATED(pthread_main_np);
 PROTO_DEPRECATED(pthread_mutexattr_getkind_np);
 PROTO_DEPRECATED(pthread_mutexattr_setkind_np);
+PROTO_DEPRECATED(pthread_get_name_np);
 PROTO_DEPRECATED(pthread_set_name_np);
 PROTO_DEPRECATED(pthread_stackseg_np);
 
diff --git a/lib/librthread/rthread_np.c b/lib/librthread/rthread_np.c
index 86beb501068..64bd2db5aea 100644
--- a/lib/librthread/rthread_np.c
+++ b/lib/librthread/rthread_np.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rthread_np.c,v 1.20 2017/09/05 02:40:54 guenther Exp $	*/
+/*	$OpenBSD: rthread_np.c,v 1.21 2019/02/04 17:18:08 tedu Exp $	*/
 /*
  * Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>
  * Copyright (c) 2005 Otto Moerbeek <otto@openbsd.org>
@@ -43,6 +43,12 @@ pthread_set_name_np(pthread_t thread, const char *name)
 	strlcpy(thread->name, name, sizeof(thread->name));
 }
 
+void
+pthread_get_name_np(pthread_t thread, char *name, size_t len)
+{
+	strlcpy(name, thread->name, len);
+}
+
 int
 pthread_main_np(void)
 {
diff --git a/lib/librthread/shlib_version b/lib/librthread/shlib_version
index c622cb8cdf3..72168dfd16a 100644
--- a/lib/librthread/shlib_version
+++ b/lib/librthread/shlib_version
@@ -1,2 +1,2 @@
 major=26
-minor=0
+minor=1