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author | 2017-04-14 13:24:07 +0200 | |
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committer | 2017-04-14 13:24:07 +0200 | |
commit | 49fe0eec8f17698fc5f86d0abe01777af1fb2b23 (patch) | |
tree | 356cd3e3261934a3fb90786e1789ee4ad001cbe5 /CAN-binder/low-can-binding/utils/timer.hpp | |
parent | 044ef27d3667a114964549f89c63ab1ea6655877 (diff) |
Change directory architecture to use 2 separated projects.
Each projects, binder and generator, has to be compiled separatly.
CAN-binder will host high and low level binding
CAN-config-generator only the generator used for low level binding.
build.sh script just launch both build in their respective dir.
Change-Id: Ic77932660fcca507b23a631d4e4e790f608880ae
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
Diffstat (limited to 'CAN-binder/low-can-binding/utils/timer.hpp')
-rw-r--r-- | CAN-binder/low-can-binding/utils/timer.hpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/CAN-binder/low-can-binding/utils/timer.hpp b/CAN-binder/low-can-binding/utils/timer.hpp new file mode 100644 index 0000000..f565904 --- /dev/null +++ b/CAN-binder/low-can-binding/utils/timer.hpp @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2015, 2016 "IoT.bzh" + * Author "Romain Forlot" <romain.forlot@iot.bzh> + * + * 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(); +};
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