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

@ -22,56 +22,54 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "cjq4435.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;
}
int main ()
int
main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
//! [Interesting]
// Instantiate a CJQ4435 MOSFET on a PWM capable digital pin D3
upm::CJQ4435* mosfet = new upm::CJQ4435(3);
upm::CJQ4435 mosfet(3);
mosfet->setPeriodMS(10);
mosfet->enable(true);
mosfet.setPeriodMS(10);
mosfet.enable(true);
while (shouldRun)
{
while (shouldRun) {
// start with a duty cycle of 0.0 (off) and increment to 1.0 (on)
for (float i=0.0; i <= 1.0; i+=0.1)
{
mosfet->setDutyCycle(i);
usleep(100000);
for (float i = 0.0; i <= 1.0; i += 0.1) {
mosfet.setDutyCycle(i);
upm_delay_us(100000);
}
sleep(1);
upm_delay(1);
// Now take it back down
// start with a duty cycle of 1.0 (on) and decrement to 0.0 (off)
for (float i=1.0; i >= 0.0; i-=0.1)
{
mosfet->setDutyCycle(i);
usleep(100000);
for (float i = 1.0; i >= 0.0; i -= 0.1) {
mosfet.setDutyCycle(i);
upm_delay_us(100000);
}
sleep(1);
upm_delay(1);
}
//! [Interesting]
//! [Interesting]
cout << "Exiting..." << endl;
delete mosfet;
return 0;
}