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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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55
examples/c++/adafruitms1438.cxx
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@ -22,54 +22,51 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <signal.h>
#include <iostream>
#include "adafruitms1438.hpp"
#include "upm_utilities.h"
using namespace std;
using namespace upm;
int main(int argc, char **argv)
int
main(int argc, char** argv)
{
//! [Interesting]
// Instantiate an Adafruit MS 1438 on I2C bus 0
//! [Interesting]
// Instantiate an Adafruit MS 1438 on I2C bus 0
upm::AdafruitMS1438 *ms =
new upm::AdafruitMS1438(ADAFRUITMS1438_I2C_BUS,
ADAFRUITMS1438_DEFAULT_I2C_ADDR);
upm::AdafruitMS1438 ms(ADAFRUITMS1438_I2C_BUS, ADAFRUITMS1438_DEFAULT_I2C_ADDR);
// Setup for use with a DC motor connected to the M3 port
// Setup for use with a DC motor connected to the M3 port
// set a PWM period of 50Hz
ms->setPWMPeriod(50);
// set a PWM period of 50Hz
ms.setPWMPeriod(50);
// disable first, to be safe
ms->disableMotor(AdafruitMS1438::MOTOR_M3);
// disable first, to be safe
ms.disableMotor(AdafruitMS1438::MOTOR_M3);
// set speed at 50%
ms->setMotorSpeed(AdafruitMS1438::MOTOR_M3, 50);
ms->setMotorDirection(AdafruitMS1438::MOTOR_M3, AdafruitMS1438::DIR_CW);
// set speed at 50%
ms.setMotorSpeed(AdafruitMS1438::MOTOR_M3, 50);
ms.setMotorDirection(AdafruitMS1438::MOTOR_M3, AdafruitMS1438::DIR_CW);
cout << "Spin M3 at half speed for 3 seconds, then reverse for 3 seconds."
<< endl;
cout << "Spin M3 at half speed for 3 seconds, then reverse for 3 seconds." << endl;
ms->enableMotor(AdafruitMS1438::MOTOR_M3);
ms.enableMotor(AdafruitMS1438::MOTOR_M3);
sleep(3);
upm_delay(3);
cout << "Reversing M3" << endl;
ms->setMotorDirection(AdafruitMS1438::MOTOR_M3, AdafruitMS1438::DIR_CCW);
cout << "Reversing M3" << endl;
ms.setMotorDirection(AdafruitMS1438::MOTOR_M3, AdafruitMS1438::DIR_CCW);
sleep(3);
upm_delay(3);
cout << "Stopping M3" << endl;
ms->disableMotor(AdafruitMS1438::MOTOR_M3);
cout << "Stopping M3" << endl;
ms.disableMotor(AdafruitMS1438::MOTOR_M3);
cout << "Exiting" << endl;
cout << "Exiting" << endl;
//! [Interesting]
//! [Interesting]
delete ms;
return 0;
return 0;
}