1217c5c034
Small cleanup of MRAA C++ examples. Switched from heap allocation to stack allocation when possible. This simplifies the samples since it removes the need for explicit memory management. Signed-off-by: Noel Eck <noel.eck@intel.com>
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*
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* Author: Brendan Le Foll
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* Contributors: Alex Tereschenko <alext.mkrs@gmail.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <unistd.h>
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#include "mraa.hpp"
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static volatile int counter = 0;
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static volatile int oldcounter = 0;
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void
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interrupt(void* args)
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{
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++counter;
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}
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int
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main()
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{
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mraa::Gpio x(6);
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x.dir(mraa::DIR_IN);
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x.isr(mraa::EDGE_BOTH, &interrupt, NULL);
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int i = 100;
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for (; i > 0; --i) {
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if (counter != oldcounter) {
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fprintf(stdout, "timeout counter == %d\n", counter);
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oldcounter = counter;
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}
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// got to relieve our poor CPU!
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sleep(1);
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}
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return MRAA_SUCCESS;
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}
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