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authorRomain Forlot <romain.forlot@iot.bzh>2017-04-14 13:24:07 +0200
committerRomain Forlot <romain.forlot@iot.bzh>2017-04-14 13:24:07 +0200
commit49fe0eec8f17698fc5f86d0abe01777af1fb2b23 (patch)
tree356cd3e3261934a3fb90786e1789ee4ad001cbe5 /CAN-binder/low-can-binding/utils/timer.hpp
parent044ef27d3667a114964549f89c63ab1ea6655877 (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.hpp53
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diff --git a/CAN-binder/low-can-binding/utils/timer.hpp b/CAN-binder/low-can-binding/utils/timer.hpp
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+/*
+ * 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();
+}; \ No newline at end of file