2008-05-17  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* include/pthread/pthread.h (pthread_getattr_np): New declaration.
	* pthread/pt-getattr.c: New file.
	* Makefile (SRCS): Add pt-getattr.c.

Index: libpthread/Makefile
===================================================================
RCS file: /cvsroot/hurd/hurd/libpthread/Makefile,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -r1.7 -r1.8
--- libpthread/Makefile	19 Nov 2007 17:37:02 -0000	1.7
+++ libpthread/Makefile	17 May 2008 20:07:55 -0000	1.8
@@ -45,6 +45,7 @@
 									    \
 	pt-alloc.c							    \
 	pt-create.c							    \
+	pt-getattr.c							    \
 	pt-equal.c							    \
 	pt-dealloc.c							    \
 	pt-detach.c							    \
Index: libpthread/include/pthread/pthread.h
===================================================================
RCS file: /cvsroot/hurd/hurd/libpthread/include/pthread/pthread.h,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -r1.10 -r1.11
--- libpthread/include/pthread/pthread.h	1 Jan 2008 04:07:13 -0000	1.10
+++ libpthread/include/pthread/pthread.h	17 May 2008 20:07:56 -0000	1.11
@@ -188,6 +188,13 @@
 /* Set the value of the stacksize attribute in *ATTR to STACKSIZE.  */
 extern int pthread_attr_setstacksize (pthread_attr_t *attr,
 				      size_t stacksize);
+
+#ifdef __USE_GNU
+/* Initialize thread attribute *ATTR with attributes corresponding to the
+   already running thread THREAD.  It shall be called on an uninitialized ATTR
+   and destroyed with pthread_attr_destroy when no longer needed.  */
+extern int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr);
+#endif
 
 
 /* Create a thread with attributes given by ATTR, executing
--- /dev/null	2008-05-16 23:43:09.480010765 +0200
+++ libpthread/pthread/pt-getattr.c	2008-05-17 22:07:56.000000000 +0200
@@ -0,0 +1,49 @@
+/* Thread attributes retrieval.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <pthread.h>
+
+#include <pt-internal.h>
+
+/* Initialize thread attribute *ATTR with attributes corresponding to the
+   already running thread THREAD.  It shall be called on an uninitialized ATTR
+   and destroyed with pthread_attr_destroy when no longer needed.  */
+int
+pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
+{
+  struct __pthread *pthread;
+
+  pthread = __pthread_getid(thread);
+  if (pthread == NULL)
+    return ESRCH;
+
+  /* Some attributes (schedparam, inheritsched, contentionscope and schedpolicy)
+     are not supported yet, so fill them with our default values.  */
+  *attr = __pthread_default_attr;
+
+  attr->stackaddr = pthread->stackaddr;
+  attr->stacksize = pthread->stacksize;
+  attr->guardsize = pthread->guardsize;
+  attr->detachstate = (pthread->state == PTHREAD_DETACHED
+		       ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE);
+
+  return 0;
+}