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waterlevel: throw exception(s) on fatal errors

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Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Jon Trulson 2015-09-11 12:33:40 -06:00 committed by Mihai Tudor Panu
parent 8765416016
commit 1fefdcbdf1
1 changed files with 8 additions and 1 deletions
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9
src/waterlevel/waterlevel.cxx
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@ -22,13 +22,20 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <string>
#include <stdexcept>
#include "waterlevel.h"
using namespace upm;
WaterLevel::WaterLevel(int pin)
{
m_gpio = mraa_gpio_init(pin);
if ( !(m_gpio = mraa_gpio_init(pin)) )
{
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init() failed, invalid pin?");
return;
}
mraa_gpio_dir(m_gpio, MRAA_GPIO_IN);
}