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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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64
examples/c++/grovemoisture.cxx
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@ -22,54 +22,54 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "grovemoisture.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 a Grove Moisture sensor on analog pin A0
upm::GroveMoisture* moisture = new upm::GroveMoisture(0);
// Values (approximate):
// 0-300, sensor in air or dry soil
// 300-600, sensor in humid soil
// 600+, sensor in wet soil or submerged in water.
// Read the value every second and print the corresponding moisture level
while (shouldRun)
{
int val = moisture->value();
cout << "Moisture value: " << val << ", ";
if (val >= 0 && val < 300)
cout << "dry";
else if (val >= 300 && val < 600)
cout << "moist";
else
cout << "wet";
//! [Interesting]
// Instantiate a Grove Moisture sensor on analog pin A0
upm::GroveMoisture moisture(0);
cout << endl;
// Values (approximate):
// 0-300, sensor in air or dry soil
// 300-600, sensor in humid soil
// 600+, sensor in wet soil or submerged in water.
// Read the value every second and print the corresponding moisture level
while (shouldRun) {
int val = moisture.value();
cout << "Moisture value: " << val << ", ";
if (val >= 0 && val < 300)
cout << "dry";
else if (val >= 300 && val < 600)
cout << "moist";
else
cout << "wet";
sleep(1);
cout << endl;
upm_delay(1);
}
//! [Interesting]
//! [Interesting]
cout << "Exiting" << endl;
cout << "Exiting" << endl;
delete moisture;
return 0;
return 0;
}