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hmtrp: 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 2015-09-10 12:03:45 -06:00 committed by Mihai Tudor Panu
parent 3cd61b56f8
commit fb779ecd6a
1 changed files with 36 additions and 14 deletions
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50
src/hmtrp/hmtrp.cxx
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@ -23,6 +23,8 @@
*/
#include <iostream>
#include <string>
#include <stdexcept>
#include "hmtrp.h"
@ -41,7 +43,8 @@ HMTRP::HMTRP(int uart)
if ( !(m_uart = mraa_uart_init(uart)) )
{
cerr << __FUNCTION__ << ": mraa_uart_init() failed" << endl;
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_uart_init() failed");
return;
}
@ -50,15 +53,18 @@ HMTRP::HMTRP(int uart)
if (!devPath)
{
cerr << __FUNCTION__ << ": mraa_uart_get_dev_path() failed" << endl;
throw std::runtime_error(std::string(__FUNCTION__) +
": mraa_uart_get_dev_path() failed");
return;
}
// now open the tty
if ( (m_ttyFd = open(devPath, O_RDWR)) == -1)
{
cerr << __FUNCTION__ << ": open of " << devPath << " failed: "
<< strerror(errno) << endl;
throw std::runtime_error(std::string(__FUNCTION__) +
": open of " +
string(devPath) + " failed: " +
string(strerror(errno)));
return;
}
}
@ -67,8 +73,6 @@ HMTRP::~HMTRP()
{
if (m_ttyFd != -1)
close(m_ttyFd);
mraa_deinit();
}
bool HMTRP::dataAvailable(unsigned int millis)
@ -109,7 +113,12 @@ int HMTRP::readData(char *buffer, int len, int millis)
int rv = read(m_ttyFd, buffer, len);
if (rv < 0)
cerr << __FUNCTION__ << ": read failed: " << strerror(errno) << endl;
{
throw std::runtime_error(std::string(__FUNCTION__) +
": read() failed: " +
string(strerror(errno)));
return rv;
}
return rv;
}
@ -123,7 +132,9 @@ int HMTRP::writeData(char *buffer, int len)
if (rv < 0)
{
cerr << __FUNCTION__ << ": write failed: " << strerror(errno) << endl;
throw std::runtime_error(std::string(__FUNCTION__) +
": write() failed: " +
string(strerror(errno)));
return rv;
}
@ -153,7 +164,9 @@ bool HMTRP::setupTty(speed_t baud)
// make it so
if (tcsetattr(m_ttyFd, TCSAFLUSH, &termio) < 0)
{
cerr << __FUNCTION__ << ": tcsetattr failed: " << strerror(errno) << endl;
throw std::runtime_error(std::string(__FUNCTION__) +
": tcsetattr() failed: " +
string(strerror(errno)));
return false;
}
@ -285,7 +298,8 @@ bool HMTRP::setRFDataRate(uint32_t rate)
if (rate < 1200 || rate > 115200)
{
cerr << __FUNCTION__ << "Valid values are between 1200-115200." << endl;
throw std::out_of_range(std::string(__FUNCTION__) +
": Valid rate values are between 1200-115200");
return false;
}
@ -311,7 +325,8 @@ bool HMTRP::setRXBandwidth(uint16_t rxBand)
if (rxBand < 30 || rxBand > 620)
{
cerr << __FUNCTION__ << "Valid values are between 30-620." << endl;
throw std::out_of_range(std::string(__FUNCTION__) +
": Valid rxBand values are between 30-620");
return false;
}
@ -335,7 +350,8 @@ bool HMTRP::setFrequencyModulation(uint8_t modulation)
if (modulation < 10 || modulation > 160)
{
cerr << __FUNCTION__ << "Valid values are between 10-160." << endl;
throw std::out_of_range(std::string(__FUNCTION__) +
": Valid modulation values are between 10-160");
return false;
}
@ -358,7 +374,8 @@ bool HMTRP::setTransmitPower(uint8_t power)
if (power > 7)
{
cerr << __FUNCTION__ << "Valid values are between 0-7." << endl;
throw std::out_of_range(std::string(__FUNCTION__) +
": Valid power values are between 0-7");
return false;
}
@ -381,7 +398,8 @@ bool HMTRP::setUARTSpeed(uint32_t speed)
if (speed < 1200 || speed > 115200)
{
cerr << __FUNCTION__ << "Valid values are between 1200-115200." << endl;
throw std::out_of_range(std::string(__FUNCTION__) +
": Valid speed values are between 1200-115200");
return false;
}
@ -407,6 +425,8 @@ bool HMTRP::getRFSignalStrength(uint8_t *strength)
if (!strength)
return false;
*strength = 0;
char pkt[3];
pkt[0] = HMTRP_START1;
pkt[1] = HMTRP_START2;
@ -437,6 +457,8 @@ bool HMTRP::getModSignalStrength(uint8_t *strength)
if (!strength)
return false;
*strength = 0;
char pkt[3];
pkt[0] = HMTRP_START1;
pkt[1] = HMTRP_START2;