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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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65
examples/c++/adxl335.cxx
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@ -22,57 +22,58 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include <string>
#include "adxl335.hpp"
#include "upm_utilities.h"
using namespace std;
int shouldRun = true;
void sig_handler(int signo)
void
sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
if (signo == SIGINT)
shouldRun = false;
}
int main ()
int
main()
{
signal(SIGINT, sig_handler);
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate an ADXL335 accelerometer on analog pins A0, A1, and A2
upm::ADXL335* accel = new upm::ADXL335(0, 1, 2);
//! [Interesting]
// Instantiate an ADXL335 accelerometer on analog pins A0, A1, and A2
upm::ADXL335 accel(0, 1, 2);
cout << "Please make sure the sensor is completely still. Sleeping for"
<< " 2 seconds." << endl;
sleep(2);
cout << "Calibrating..." << endl;
cout << "Please make sure the sensor is completely still. Sleeping for"
<< " 2 seconds." << endl;
upm_delay(2);
cout << "Calibrating..." << endl;
accel->calibrate();
while (shouldRun)
{
int x, y, z;
float aX, aY, aZ;
accel.calibrate();
accel->values(&x, &y, &z);
cout << "Raw Values: X: " << x << " Y: " << y << " Z: " << z << endl;
while (shouldRun) {
int x, y, z;
float aX, aY, aZ;
accel->acceleration(&aX, &aY, &aZ);
cout << "Acceleration: X: " << aX << "g" << endl;
cout << "Acceleration: Y: " << aY << "g" << endl;
cout << "Acceleration: Z: " << aZ << "g" << endl;
cout << endl;
accel.values(&x, &y, &z);
cout << "Raw Values: X: " << x << " Y: " << y << " Z: " << z << endl;
usleep(200000);
accel.acceleration(&aX, &aY, &aZ);
cout << "Acceleration: X: " << aX << "g" << endl;
cout << "Acceleration: Y: " << aY << "g" << endl;
cout << "Acceleration: Z: " << aZ << "g" << endl;
cout << endl;
upm_delay_us(200000);
}
//! [Interesting]
//! [Interesting]
cout << "Exiting" << endl;
cout << "Exiting" << endl;
delete accel;
return 0;
return 0;
}