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.

4 files changed, 66 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 104dc66..c052f03 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,14 +1,20 @@
-2008-03-16  Samuel Thibault  <samuel.thibault@ens-lyon.org
+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.
+
+2008-03-16  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 
 	* include/libc-symbols.h (HAVE_ASM_PREVIOUS_DIRECTIVE): Define.
 
-2008-02-29  Samuel Thibault  <samuel.thibault@ens-lyon.org
+2008-02-29  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 
 	* sysdeps/l4/hurd/i386/pt-setup.c (stack_setup): Align stack on 0x10
 	for MMX operations.
 	* sysdeps/mach/hurd/i386/pt-setup.c (stack_setup): Likewise.
 
-2008-01-01  Samuel Thibault  <samuel.thibault@ens-lyon.org
+2008-01-01  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 
 	* include/pthread/pthread.h (pthread_spin_destroy, pthread_spin_init,
 	pthread_spin_lock, pthread_spin_trylock, pthread_spin_unlock): Use
diff --git a/Makefile b/Makefile
index 0c1542e..dc41950 100644
--- a/Makefile
+++ b/Makefile
@@ -45,6 +45,7 @@ SRCS := pt-attr.c pt-attr-destroy.c pt-attr-getdetachstate.c		    \
 									    \
 	pt-alloc.c							    \
 	pt-create.c							    \
+	pt-getattr.c							    \
 	pt-equal.c							    \
 	pt-dealloc.c							    \
 	pt-detach.c							    \
diff --git a/include/pthread/pthread.h b/include/pthread/pthread.h
index 9773e68..88fa1dc 100644
--- a/include/pthread/pthread.h
+++ b/include/pthread/pthread.h
@@ -188,6 +188,13 @@ extern int pthread_attr_getstacksize (const pthread_attr_t *__restrict attr,
 /* 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
diff --git a/pthread/pt-getattr.c b/pthread/pt-getattr.c
new file mode 100644
index 0000000..24599c6
--- /dev/null
+++ b/pthread/pt-getattr.c
@@ -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;
+}