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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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43
examples/c++/rn2903-p2p-rx.cxx
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@ -22,30 +22,29 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <sstream>
#include <string>
#include <signal.h>
#include <string>
#include "rn2903.hpp"
#include "upm_utilities.h"
#include "rn2903_defs.h"
using namespace std;
bool 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);
//! [Interesting]
signal(SIGINT, sig_handler);
//! [Interesting]
string defaultDev = "/dev/ttyUSB0";
if (argc > 1)
@ -54,7 +53,7 @@ int main(int argc, char **argv)
cout << "Using device: " << defaultDev << endl;
// Instantiate a RN2903 sensor on defaultDev at 57600 baud.
upm::RN2903 sensor (defaultDev, RN2903_DEFAULT_BAUDRATE);
upm::RN2903 sensor(defaultDev, RN2903_DEFAULT_BAUDRATE);
// To use an internal UART understood by MRAA, use the following
// to inititialize rather than the above, which by default uses a
@ -66,8 +65,7 @@ int main(int argc, char **argv)
// sensor.setDebug(true);
// get version
if (sensor.command("sys get ver"))
{
if (sensor.command("sys get ver")) {
cout << "Failed to retrieve device version string" << endl;
return 1;
}
@ -88,26 +86,19 @@ int main(int argc, char **argv)
// radio watch dog timer will expire every 15 seconds. We will
// just loop here.
while (shouldRun)
{
while (shouldRun) {
cout << "Waiting for packet..." << endl;
RN2903_RESPONSE_T rv;
rv = sensor.radioRx(0);
if (rv)
{
if (rv) {
cout << "radioRx() failed with code " << int(rv) << endl;
}
else
{
} else {
string resp = sensor.getResponse();
string payload = sensor.getRadioRxPayload();
if (!payload.size())
cout << "Got response: '" << resp << "'" << endl;
else
cout <<"Got payload: '"
<< sensor.fromHex(payload)
<< "'"
<< endl;
cout << "Got payload: '" << sensor.fromHex(payload) << "'" << endl;
}
cout << endl;
@ -115,7 +106,7 @@ int main(int argc, char **argv)
cout << "Exiting" << endl;
//! [Interesting]
//! [Interesting]
return 0;
}