Diff: mbed-os/rtos/Kernel.h

Revision:

0:e056ac8fecf8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/rtos/Kernel.h	Tue Mar 13 07:17:50 2018 +0000
@@ -0,0 +1,51 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef KERNEL_H
+#define KERNEL_H
+
+#include <stdint.h>
+
+namespace rtos {
+/** \addtogroup rtos */
+/** @{*/
+
+/** Functions in the Kernel namespace control RTOS kernel information. */
+namespace Kernel {
+
+/** Read the current RTOS kernel millisecond tick count.
+     The tick count corresponds to the tick count used by the RTOS for timing
+     purposes. It increments monotonically from 0 at boot, hence effectively
+     never wraps. If the underlying RTOS only provides a 32-bit tick count,
+     this method expands it to 64 bits.
+     @return  RTOS kernel current tick count
+     @note mbed OS always uses millisecond RTOS ticks, and this could only wrap
+           after half a billion years
+     @note You cannot call this function from ISR context.
+ */
+uint64_t get_ms_count();
+
+} // namespace Kernel
+
+} // namespace rtos
+#endif
+
+/** @}*/