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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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28
examples/c++/apds9930.cxx
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@ -22,10 +22,11 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "apds9930.hpp"
#include "upm_utilities.h"
using namespace std;
@ -44,31 +45,30 @@ main()
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a Digital Proximity and Ambient Light sensor on iio device 4
upm::APDS9930* light_proximity = new upm::APDS9930(4);
upm::APDS9930 light_proximity(4);
// Kernel driver implement sleep 5000-5100us after enable illuminance sensor
light_proximity->enableIlluminance(true);
// Kernel driver implement upm_delay 5000-5100us after enable illuminance
// sensor
light_proximity.enableIlluminance(true);
// Kernel driver implement sleep 5000-5100us after enable proximity sensor
light_proximity->enableProximity(true);
// Kernel driver implement upm_delay 5000-5100us after enable proximity sensor
light_proximity.enableProximity(true);
// Tested this value works. Please change it on your platform
usleep(120000);
upm_delay_us(120000);
while (shouldRun) {
float lux = light_proximity->getAmbient();
float lux = light_proximity.getAmbient();
cout << "Luminance value is " << lux << endl;
float proximity = light_proximity->getProximity();
float proximity = light_proximity.getProximity();
cout << "Proximity value is " << proximity << endl;
sleep(1);
upm_delay(1);
}
light_proximity->enableProximity(false);
light_proximity->enableIlluminance(false);
light_proximity.enableProximity(false);
light_proximity.enableIlluminance(false);
//! [Interesting]
cout << "Exiting" << endl;
delete light_proximity;
return 0;
}