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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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68
examples/c++/ds18b20.cxx
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@ -22,65 +22,61 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "ds18b20.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 argc, char **argv)
int
main(int argc, char** argv)
{
signal(SIGINT, sig_handler);
signal(SIGINT, sig_handler);
//! [Interesting]
//! [Interesting]
cout << "Initializing..." << endl;
cout << "Initializing..." << endl;
// Instantiate an DS18B20 instance using the default values (uart 0)
upm::DS18B20 sensor;
// Instantiate an DS18B20 instance using the default values (uart 0)
upm::DS18B20 sensor;
cout << "Found " << sensor.devicesFound() << " device(s)" << endl;
cout << endl;
cout << "Found " << sensor.devicesFound() << " device(s)" << endl;
cout << endl;
// bail if we didn't find anything
if (!sensor.devicesFound())
return 1;
// bail if we didn't find anything
if (!sensor.devicesFound())
return 1;
// update and print available values every 2 seconds
while (shouldRun)
{
// update our values for all of the detected sensors
sensor.update(-1);
// update and print available values every 2 seconds
while (shouldRun) {
// update our values for all of the detected sensors
sensor.update(-1);
// we show both C and F for temperature for the sensors
int i;
for (i=0; i<sensor.devicesFound(); i++)
{
cout << "Device "
<< i
<< ": Temperature: "
<< sensor.getTemperature(i)
<< " C / " << sensor.getTemperature(i, true) << " F"
<< endl;
}
cout << endl;
// we show both C and F for temperature for the sensors
int i;
for (i = 0; i < sensor.devicesFound(); i++) {
cout << "Device " << i << ": Temperature: " << sensor.getTemperature(i) << " C / "
<< sensor.getTemperature(i, true) << " F" << endl;
}
cout << endl;
sleep(2);
upm_delay(2);
}
cout << "Exiting..." << endl;
cout << "Exiting..." << endl;
//! [Interesting]
//! [Interesting]
return 0;
return 0;
}