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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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73
examples/c++/dfrorp.cxx
View File

@@ -22,66 +22,63 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "dfrorp.hpp"
#include "upm_utilities.h"
using namespace std;
bool 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]
//! [Interesting]
// Instantiate a DFRobot ORP sensor on analog pin A0 with an analog
// reference voltage of 5.0.
upm::DFRORP *sensor = new upm::DFRORP(0, 5.0);
// Instantiate a DFRobot ORP sensor on analog pin A0 with an analog
// reference voltage of 5.0.
upm::DFRORP sensor(0, 5.0);
// To calibrate:
//
// Disconnect the sensor probe (but leave the sensor interface board
// connected). Then run one of the examples while holding down the
// 'calibrate' button on the device. Read the ORP value reported
// (it should be fairly small).
//
// This value is what you should supply to setCalibrationOffset().
// Then reconnect the probe to the interface board and you should be
// ready to go.
//
// DO NOT press the calibrate button on the interface board while
// the probe is attached or you can permanently damage the probe.
sensor->setCalibrationOffset(0.97);
// To calibrate:
//
// Disconnect the sensor probe (but leave the sensor interface board
// connected). Then run one of the examples while holding down the
// 'calibrate' button on the device. Read the ORP value reported
// (it should be fairly small).
//
// This value is what you should supply to setCalibrationOffset().
// Then reconnect the probe to the interface board and you should be
// ready to go.
//
// DO NOT press the calibrate button on the interface board while
// the probe is attached or you can permanently damage the probe.
sensor.setCalibrationOffset(0.97);
// Every second, update and print values
while (shouldRun)
{
sensor->update();
// Every second, update and print values
while (shouldRun) {
sensor.update();
cout << "ORP: "
<< sensor->getORP()
<< " mV"
<< endl;
cout << "ORP: " << sensor.getORP() << " mV" << endl;
cout << endl;
cout << endl;
sleep(1);
upm_delay(1);
}
//! [Interesting]
//! [Interesting]
cout << "Exiting" << endl;
cout << "Exiting" << endl;
delete sensor;
return 0;
return 0;
}