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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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53
examples/c++/ht9170.cxx
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@ -22,51 +22,50 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "ht9170.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
main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a DTMF decoder
upm::HT9170* dtmf = new upm::HT9170(12, 11, 10, 9, 8);
// Now we just spin in a loop, sleeping every 100ms, checking to see
// if a digit is available. If so, we decode and print the digit,
// and continue looping.
// Instantiate a DTMF decoder
upm::HT9170 dtmf(12, 11, 10, 9, 8);
while(shouldRun)
{
if (dtmf->digitReady())
{
cout << "Got DTMF code: " << dtmf->decodeDigit() << endl;
// now spin until digitReady() goes false again
while (dtmf->digitReady())
;
// Now we just spin in a loop, upm_delaying every 100ms, checking to see
// if a digit is available. If so, we decode and print the digit,
// and continue looping.
while (shouldRun) {
if (dtmf.digitReady()) {
cout << "Got DTMF code: " << dtmf.decodeDigit() << endl;
// now spin until digitReady() goes false again
while (dtmf.digitReady())
;
}
usleep(100000);
upm_delay_us(100000);
}
//! [Interesting]
cout << "Exiting..." << endl;
//! [Interesting]
delete dtmf;
return 0;
cout << "Exiting..." << endl;
return 0;
}