00001 /* -*- mode: C++ -*- */ 00002 /********************************************************************* 00003 * Software License Agreement (BSD License) 00004 * 00005 * Copyright (C) 2015, Jack O'Quin 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 00012 * * Redistributions of source code must retain the above copyright 00013 * notice, this list of conditions and the following disclaimer. 00014 * * Redistributions in binary form must reproduce the above 00015 * copyright notice, this list of conditions and the following 00016 * disclaimer in the documentation and/or other materials provided 00017 * with the distribution. 00018 * * Neither the name of the authors nor other contributors may be 00019 * used to endorse or promote products derived from this software 00020 * without specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00023 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00024 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00025 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00026 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00027 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00028 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00029 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00030 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00031 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00032 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00033 * POSSIBILITY OF SUCH DAMAGE. 00034 *********************************************************************/ 00035 00041 #ifndef _ARDUINO_DEVICE_ 00042 #define _ARDUINO_DEVICE_ 1 00043 00045 class ArduinoDevice 00046 { 00047 public: 00048 00053 ArduinoDevice(int poll_msec): 00054 poll_msec_(poll_msec), 00055 next_poll_(poll_msec) {} 00056 00061 virtual void poll() = 0; 00062 00068 bool check(int interval) 00069 { 00070 next_poll_ -= interval; 00071 if (next_poll_ > 0) 00072 return false; // not time for next poll 00073 00074 next_poll_ = poll_msec_; // reset counter 00075 return true; // time for next poll 00076 } 00077 00078 private: 00079 int poll_msec_; 00080 int next_poll_; 00081 }; 00082 00083 #endif // _ARDUINO_DEVICE_