Diff: include/polarssl/timing.h

Revision:

0:137634ff4186

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/polarssl/timing.h	Thu Jun 11 03:27:03 2015 +0000
@@ -0,0 +1,100 @@
+/**
+ * \file timing.h
+ *
+ * \brief Portable interface to the CPU cycle counter
+ *
+ *  Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_TIMING_H
+#define POLARSSL_TIMING_H
+
+#if !defined(POLARSSL_CONFIG_FILE)
+#include "config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
+
+#if !defined(POLARSSL_TIMING_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          timer structure
+ */
+struct hr_time
+{
+    unsigned char opaque[32];
+};
+
+extern volatile int alarmed;
+
+/**
+ * \brief          Return the CPU cycle counter value
+ */
+unsigned long hardclock( void );
+
+/**
+ * \brief          Return the elapsed time in milliseconds
+ *
+ * \param val      points to a timer structure
+ * \param reset    if set to 1, the timer is restarted
+ */
+unsigned long get_timer( struct hr_time *val, int reset );
+
+/**
+ * \brief          Setup an alarm clock
+ *
+ * \param seconds  delay before the "alarmed" flag is set
+ *
+ * \warning        Only one alarm at a time  is supported. In a threaded
+ *                 context, this means one for the whole process, not one per
+ *                 thread.
+ */
+void set_alarm( int seconds );
+
+/**
+ * \brief          Sleep for a certain amount of time
+ *
+ * \param milliseconds  delay in milliseconds
+ */
+void m_sleep( int milliseconds );
+
+#if defined(POLARSSL_SELF_TEST)
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if a test failed
+ */
+int timing_self_test( int verbose );
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* POLARSSL_TIMING_ALT */
+#include "timing_alt.h"
+#endif /* POLARSSL_TIMING_ALT */
+
+#endif /* timing.h */
+