From 9e444ade872bc436cf12bc12d03c3a5d51ac0b9e Mon Sep 17 00:00:00 2001 From: Romain Forlot Date: Tue, 11 Apr 2017 12:55:23 +0200 Subject: Handle project new architecture using new CMakeFile Change-Id: I672a9b49d9d5a3953ba6dccaafbbd738839f64a6 Signed-off-by: Romain Forlot # Conflicts: # low-can-binding/libs/bitfield-c # low-can-binding/libs/isotp-c # low-can-binding/libs/openxc-message-format --- low-can-binding/utils/timer.hpp | 53 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 low-can-binding/utils/timer.hpp (limited to 'low-can-binding/utils/timer.hpp') diff --git a/low-can-binding/utils/timer.hpp b/low-can-binding/utils/timer.hpp new file mode 100644 index 00000000..f5659044 --- /dev/null +++ b/low-can-binding/utils/timer.hpp @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2015, 2016 "IoT.bzh" + * Author "Romain Forlot" + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma once + +/// @brief return epoch in milliseconds +/// +/// @return long long int epoch in milliseconds +typedef long long int (*time_function_t)(); + +long long int system_time_us(); +long long int system_time_ms(); +long long int system_time_s(); + + +/// @brief A frequency counting clock. +/// Utility class allowing some time function. +class frequency_clock_t +{ +private: + float unit_; ///< unit_ - multiplicator to make operation to be in the right unit (milli, micro, nano, etc) + float frequency_; ///< the clock frequency in Hz. + unsigned long last_tick_; ///< the last time (in milliseconds since startup) that the clock ticked. + time_function_t time_function_; ///< a function returning current time + +public: + frequency_clock_t(); + frequency_clock_t(float frequency); + frequency_clock_t(float frequency, unsigned long last_tick, time_function_t time_function); + + float get_frequency() const; + + float frequency_to_period(); + bool started(); + time_function_t get_time_function(); + bool elapsed(bool stagger); + + void tick(); +}; \ No newline at end of file -- cgit 1.2.3-korg