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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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86
examples/c++/interfaces-lightsensor.cxx
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@@ -22,57 +22,63 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <exception>
#include <iostream>
#include "max44009.hpp"
#include "si1132.hpp"
#include <stddef.h>
#define EDISON_I2C_BUS 1
#include "iLightSensor.hpp"
#include "max44009.hpp"
#include "mraa/common.h"
#include "si1132.hpp"
#include "upm_utilities.h"
#define EDISON_I2C_BUS 1
#define FT4222_I2C_BUS 0
//! [Interesting]
// Simple example of using ILightSensor to determine
// Simple example of using ILightSensor to determine
// which sensor is present and return its name.
// ILightSensor is then used to get readings from sensor
upm::ILightSensor* getLightSensor()
upm::ILightSensor*
getLightSensor()
{
upm::ILightSensor* lightSensor = NULL;
try {
lightSensor = new upm::SI1132(mraa_get_sub_platform_id(FT4222_I2C_BUS));
return lightSensor;
} catch (std::exception& e) {
std::cerr << "SI1132: " << e.what() << std::endl;
}
try {
lightSensor = new upm::MAX44009(EDISON_I2C_BUS);
return lightSensor;
} catch (std::exception& e) {
std::cerr << "MAX44009: " << e.what() << std::endl;
}
return lightSensor;
upm::ILightSensor* lightSensor = NULL;
try {
lightSensor = new upm::SI1132(mraa_get_sub_platform_id(FT4222_I2C_BUS));
return lightSensor;
} catch (std::exception& e) {
std::cerr << "SI1132: " << e.what() << std::endl;
}
try {
lightSensor = new upm::MAX44009(EDISON_I2C_BUS);
return lightSensor;
} catch (std::exception& e) {
std::cerr << "MAX44009: " << e.what() << std::endl;
}
return lightSensor;
}
int main ()
int
main()
{
upm::ILightSensor* lightSensor = getLightSensor();
if (lightSensor == NULL) {
std::cout << "Light sensor not detected" << std::endl;
return 1;
}
std::cout << "Light sensor " << lightSensor->getModuleName() << " detected" << std::endl;
while (true) {
try {
float value = lightSensor->getVisibleLux();
std::cout << "Light level = " << value << " lux" << std::endl;
} catch (std::exception& e) {
std::cerr << e.what() << std::endl;
}
sleep(1);
}
delete lightSensor;
return 0;
upm::ILightSensor* lightSensor = getLightSensor();
if (lightSensor == NULL) {
std::cout << "Light sensor not detected" << std::endl;
return 1;
}
std::cout << "Light sensor " << lightSensor->getModuleName() << " detected" << std::endl;
while (true) {
try {
float value = lightSensor->getVisibleLux();
std::cout << "Light level = " << value << " lux" << std::endl;
} catch (std::exception& e) {
std::cerr << e.what() << std::endl;
}
upm_delay(1);
}
delete lightSensor;
return 0;
}
//! [Interesting]
//! [Interesting]