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Add Ticker library (#1057)

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* Add Ticker library

* Fix CI (#1)

remove LED_BUILTIN in examples
This commit is contained in:
Bert Melis
2018-03-04 20:34:03 +01:00
committed by Me No Dev
parent f5c2afff31
commit 8e29347d4f
6 changed files with 257 additions and 0 deletions
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libraries/Ticker/src/Ticker.h Normal file
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/*
Ticker.h - esp32 library that calls functions periodically
Copyright (c) 2017 Bert Melis. All rights reserved.
Based on the original work of:
Copyright (c) 2014 Ivan Grokhotkov. All rights reserved.
The original version is part of the esp8266 core for Arduino environment.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef TICKER_H
#define TICKER_H
extern "C" {
#include "esp_timer.h"
}
class Ticker
{
public:
Ticker();
~Ticker();
typedef void (*callback_t)(void);
typedef void (*callback_with_arg_t)(void*);
void attach(float seconds, callback_t callback)
{
_attach_ms(seconds * 1000, true, reinterpret_cast<callback_with_arg_t>(callback), 0);
}
void attach_ms(uint32_t milliseconds, callback_t callback)
{
_attach_ms(milliseconds, true, reinterpret_cast<callback_with_arg_t>(callback), 0);
}
template<typename TArg>
void attach(float seconds, void (*callback)(TArg), TArg arg)
{
static_assert(sizeof(TArg) <= sizeof(uint32_t), "attach() callback argument size must be <= 4 bytes");
// C-cast serves two purposes:
// static_cast for smaller integer types,
// reinterpret_cast + const_cast for pointer types
uint32_t arg32 = (uint32_t)arg;
_attach_ms(seconds * 1000, true, reinterpret_cast<callback_with_arg_t>(callback), arg32);
}
template<typename TArg>
void attach_ms(uint32_t milliseconds, void (*callback)(TArg), TArg arg)
{
static_assert(sizeof(TArg) <= sizeof(uint32_t), "attach_ms() callback argument size must be <= 4 bytes");
uint32_t arg32 = (uint32_t)arg;
_attach_ms(milliseconds, true, reinterpret_cast<callback_with_arg_t>(callback), arg32);
}
void once(float seconds, callback_t callback)
{
_attach_ms(seconds * 1000, false, reinterpret_cast<callback_with_arg_t>(callback), 0);
}
void once_ms(uint32_t milliseconds, callback_t callback)
{
_attach_ms(milliseconds, false, reinterpret_cast<callback_with_arg_t>(callback), 0);
}
template<typename TArg>
void once(float seconds, void (*callback)(TArg), TArg arg)
{
static_assert(sizeof(TArg) <= sizeof(uint32_t), "attach() callback argument size must be <= 4 bytes");
uint32_t arg32 = (uint32_t)(arg);
_attach_ms(seconds * 1000, false, reinterpret_cast<callback_with_arg_t>(callback), arg32);
}
template<typename TArg>
void once_ms(uint32_t milliseconds, void (*callback)(TArg), TArg arg)
{
static_assert(sizeof(TArg) <= sizeof(uint32_t), "attach_ms() callback argument size must be <= 4 bytes");
uint32_t arg32 = (uint32_t)(arg);
_attach_ms(milliseconds, false, reinterpret_cast<callback_with_arg_t>(callback), arg32);
}
void detach();
bool active();
protected:
void _attach_ms(uint32_t milliseconds, bool repeat, callback_with_arg_t callback, uint32_t arg);
protected:
esp_timer_handle_t _timer;
};
#endif // TICKER_H