Add thread_attr_compare helper function

* sysdeps/generic/timer_routines.h: New file.

1 files changed, 47 insertions, 0 deletions

diff --git a/sysdeps/generic/timer_routines.h b/sysdeps/generic/timer_routines.h
new file mode 100644
index 0000000..c69d7c1
--- /dev/null
+++ b/sysdeps/generic/timer_routines.h
@@ -0,0 +1,47 @@
+/* Helper code for POSIX timer implementation on Hurd.
+   Copyright (C) 2000-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _TIMER_ROUTINES_H
+#define _TIMER_ROUTINES_H	1
+
+#include <pthread/pthreadtypes.h>
+
+/* Compare two pthread_attr_t thread attributes for exact equality.
+   Returns 1 if they are equal, otherwise zero if they are not equal
+   or contain illegal values.  This version is Hurd-specific for
+   performance reason.  One could use the access functions to get the
+   values of all the fields of the attribute structure.  */
+static inline int
+thread_attr_compare (const pthread_attr_t *left, const pthread_attr_t *right)
+{
+  struct __pthread_attr *ileft = (struct __pthread_attr *) left;
+  struct __pthread_attr *iright = (struct __pthread_attr *) right;
+
+  return (ileft->__schedparam.__sched_priority
+	      == iright->__schedparam.__sched_priority
+	  && ileft->__stackaddr == iright->__stackaddr
+	  && ileft->__stacksize == iright->__stacksize
+	  && ileft->__guardsize == iright->__guardsize
+	  && ileft->__detachstate == iright->__detachstate
+	  && ileft->__inheritsched == iright->__inheritsched
+	  && ileft->__contentionscope == iright->__contentionscope
+	  && ileft->__schedpolicy == iright->__schedpolicy);
+}
+
+#endif	/* timer_routines.h */