alexey.zholtikov/upm
1
0
Fork 0
mirror of https://github.com/eclipse/upm.git synced 2025-07-03 10:21:19 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

examples: Remove heap allocation from C++ examples

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

26
examples/c++/gas-mq3.cxx
View File

@ -22,16 +22,16 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include "mq3.hpp"
#include <signal.h>
#include <stdlib.h>
#include <sys/time.h>
#include <stdint.h>
#include <stdio.h>
#include "gas.hpp"
#include "mq3.hpp"
int is_running = 0;
uint16_t buffer [128];
upm::MQ3 *sensor = NULL;
uint16_t buffer[128];
void
sig_handler(int signo)
@ -44,26 +44,26 @@ sig_handler(int signo)
//! [Interesting]
int
main(int argc, char **argv)
main(int argc, char** argv)
{
// Attach gas sensor to A0
sensor = new upm::MQ3(0);
upm::MQ3 sensor(0);
signal(SIGINT, sig_handler);
thresholdContext ctx;
ctx.averageReading = 0;
ctx.runningAverage = 0;
ctx.averagedOver = 2;
ctx.averagedOver = 2;
// Infinite loop, ends when script is cancelled
// Repeatedly, take a sample every 2 milliseconds;
// find the average of 128 samples; and
// print a running graph of the averages using a resolution of 5
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 ....
}
@ -72,8 +72,6 @@ main(int argc, char **argv)
std::cout << "exiting application" << std::endl;
delete sensor;
return 0;
}
//! [Interesting]