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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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44
examples/c++/stepmotor.cxx
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@ -23,15 +23,16 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include <stdio.h>
#include "stepmotor.hpp"
#include "upm_utilities.h"
using namespace std;
int doWork = 1;
upm::StepMotor *sensor = NULL;
void
sig_handler(int signo)
@ -44,35 +45,34 @@ sig_handler(int signo)
}
int
main(int argc, char **argv)
main(int argc, char** argv)
{
//! [Interesting]
sensor = new upm::StepMotor(2, 3);
//! [Interesting]
upm::StepMotor sensor(2, 3);
while (doWork) {
cout << "1 Revolution forward and back at 60 rpm" << endl;
sensor->setSpeed(60);
sensor->stepForward(200);
usleep(1000000);
sensor->stepBackward(200);
usleep(1000000);
sensor.setSpeed(60);
sensor.stepForward(200);
upm_delay_us(1000000);
sensor.stepBackward(200);
upm_delay_us(1000000);
cout << "1 Revolution forward and back at 150 rpm" << endl;
sensor->setSpeed(150);
sensor->stepForward(200);
usleep(1000000);
sensor->stepBackward(200);
usleep(1000000);
sensor.setSpeed(150);
sensor.stepForward(200);
upm_delay_us(1000000);
sensor.stepBackward(200);
upm_delay_us(1000000);
cout << "1 Revolution forward and back at 300 rpm" << endl;
sensor->setSpeed(300);
sensor->stepForward(200);
usleep (1000000);
sensor->stepBackward(200);
usleep (1000000);
sensor.setSpeed(300);
sensor.stepForward(200);
upm_delay_us(1000000);
sensor.stepBackward(200);
upm_delay_us(1000000);
}
delete sensor;
//! [Interesting]
//! [Interesting]
return 0;
}