examples: Remove heap allocation from C++ examples

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

View File

@ -22,16 +22,16 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include "mq9.hpp"
#include <signal.h>
#include <stdlib.h>
#include <sys/time.h>
#include <stdint.h>
#include <stdio.h>
#include "gas.hpp"
#include "mq9.hpp"
int is_running = 0;
uint16_t buffer [128];
upm::MQ9 *sensor = NULL;
uint16_t buffer[128];
void
sig_handler(int signo)
@ -44,21 +44,21 @@ sig_handler(int signo)
//! [Interesting]
int
main(int argc, char **argv)
main(int argc, char** argv)
{
sensor = new upm::MQ9(0);
upm::MQ9 sensor(0);
signal(SIGINT, sig_handler);
thresholdContext ctx;
ctx.averageReading = 0;
ctx.runningAverage = 0;
ctx.averagedOver = 2;
ctx.averagedOver = 2;
while (!is_running) {
int len = sensor->getSampledWindow (2, 128, buffer);
int len = sensor.getSampledWindow(2, 128, buffer);
if (len) {
int thresh = sensor->findThreshold (&ctx, 30, buffer, len);
sensor->printGraph(&ctx, 5);
int thresh = sensor.findThreshold(&ctx, 30, buffer, len);
sensor.printGraph(&ctx, 5);
if (thresh) {
// do something ....
}
@ -67,8 +67,6 @@ main(int argc, char **argv)
std::cout << "exiting application" << std::endl;
delete sensor;
return 0;
}
//! [Interesting]