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examples: Remove heap allocation from C++ examples

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Cleanup of UPM C++ examples.  Switched from heap allocation to
stack allocation when possible.  This simplifies the samples since it
removes the need for explicit memory management.  A script was used to
identify and replace pointer use.  To simplify the replace script, I
re-formatted the C++ examples using the UPM .clang-format file.
Unfortuantely this changes the look of the UPM C++ examples to a large
degree.  However, examples will now have a standard look/feel and
uniform formatting.

    * Ran clang-format w/provided UPM .clang-format file
    * Removed new's/delete's whenever possible (left those in interface
      examples)
    * Added IIO sensor library implementation of callback void* arg
    * Converted all sleeps to upm defined delays (added header when
      necessary)
    * Scrubbed CXX example includes

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck
2017-08-30 15:00:29 -07:00
committed by Mihai Tudor Panu
parent bd6e4ec786
commit 5cefe7f5f3
290 changed files with 7976 additions and 8520 deletions
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31
examples/c++/kxcjk1013.cxx
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@ -22,16 +22,16 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <iostream>
#include <iomanip>
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "kxcjk1013.hpp"
#include "upm_utilities.h"
using namespace std;
int shouldRun = true;
upm::KXCJK1013* accelerometer;
void
sig_handler(int signo)
@ -41,9 +41,11 @@ sig_handler(int signo)
}
void
data_callback(char* data)
data_callback(char* data, void* args)
{
float x, y, z;
upm::KXCJK1013* accelerometer = static_cast<upm::KXCJK1013*>(args);
accelerometer->extract3Axis(data, &x, &y, &z);
cout << fixed << setprecision(1);
cout << x << '\t' << y << '\t' << z << "[m/s^2]" << endl;
@ -55,25 +57,24 @@ main()
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a KXCJK1013 Accelerometer Sensor on iio device 0
accelerometer = new upm::KXCJK1013(0);
upm::KXCJK1013 accelerometer(0);
// Available scales are 0.009582(2g), 0.019163(4g), and 0.038326(8g)
accelerometer->setScale(0.019163);
// Available sampling frequency are 0.781000, 1.563000, 3.125000, 6.250000, 12.500000, 25, 50,
accelerometer.setScale(0.019163);
// Available sampling frequency are 0.781000, 1.563000, 3.125000, 6.250000,
// 12.500000, 25, 50,
// 100, 200, 400, 800, and 1600
accelerometer->setSamplingFrequency(25.0);
accelerometer->enable3AxisChannel();
accelerometer->installISR(data_callback, NULL);
accelerometer->enableBuffer(16);
accelerometer.setSamplingFrequency(25.0);
accelerometer.enable3AxisChannel();
accelerometer.installISR(data_callback, &accelerometer);
accelerometer.enableBuffer(16);
while (shouldRun) {
sleep(1);
upm_delay(1);
}
accelerometer->disableBuffer();
accelerometer.disableBuffer();
//! [Interesting]
cout << "Exiting" << endl;
delete accelerometer;
return 0;
}