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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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112
examples/c++/rgbringcoder.cxx
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@ -22,89 +22,83 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include "rgbringcoder.hpp"
#include <signal.h>
#include "rgbringcoder.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 argc, char **argv)
int
main(int argc, char** argv)
{
signal(SIGINT, sig_handler);
signal(SIGINT, sig_handler);
//! [Interesting]
// There are a lot of pins to hook up. These pins are valid for the
// Edison board, but may need to be adjusted for other platforms.
//! [Interesting]
// In order:
// enable - 4
// latch - 10
// clear - 11
// clock - 2
// data - 9
// switch - 7
// There are a lot of pins to hook up. These pins are valid for the
// Edison board, but may need to be adjusted for other platforms.
// red pwm - 3
// green pwm - 5
// blue pwm - 6
// In order:
// enable - 4
// latch - 10
// clear - 11
// clock - 2
// data - 9
// switch - 7
// encA - 12
// encB - 13
// red pwm - 3
// green pwm - 5
// blue pwm - 6
upm::RGBRingCoder *ringCoder =
new upm::RGBRingCoder(4, 10, 11, 2, 9, 7, 12, 13, 3, 5, 6);
// encA - 12
// encB - 13
uint16_t spin = 0x0001;
bool oldState = false;
int oldPos = 0;
upm::RGBRingCoder ringCoder(4, 10, 11, 2, 9, 7, 12, 13, 3, 5, 6);
// Lets go green
ringCoder->setRGBLED(0.99, 0.01, 0.99);
uint16_t spin = 0x0001;
bool oldState = false;
int oldPos = 0;
while (shouldRun)
{
// you spin me round...
if (spin == 0)
spin = 0x0001;
// Lets go green
ringCoder.setRGBLED(0.99, 0.01, 0.99);
ringCoder->setRingLEDS(spin);
spin <<= 1;
while (shouldRun) {
// you spin me round...
if (spin == 0)
spin = 0x0001;
// check button state
bool bstate = ringCoder->getButtonState();
if (bstate != oldState)
{
cout << "Button state changed from " << oldState << " to "
<< bstate << endl;
oldState = bstate;
ringCoder.setRingLEDS(spin);
spin <<= 1;
// check button state
bool bstate = ringCoder.getButtonState();
if (bstate != oldState) {
cout << "Button state changed from " << oldState << " to " << bstate << endl;
oldState = bstate;
}
// check encoder position
int epos = ringCoder->getEncoderPosition();
if (epos != oldPos)
{
cout << "Encoder position changed from " << oldPos << " to "
<< epos << endl;
oldPos = epos;
// check encoder position
int epos = ringCoder.getEncoderPosition();
if (epos != oldPos) {
cout << "Encoder position changed from " << oldPos << " to " << epos << endl;
oldPos = epos;
}
usleep(100000);
upm_delay_us(100000);
}
//! [Interesting]
delete ringCoder;
return 0;
//! [Interesting]
return 0;
}