C++ exceptions now propagate through python

brmdoor_nfc.cpp

@@ -8,7 +8,7 @@
 
 using namespace std;
 
-NFCDevice::NFCDevice():
+NFCDevice::NFCDevice() throw(NFCError):
     pollNr(20),
     pollPeriod(2),
     _nfcContext(NULL),
@@ -29,7 +29,7 @@ NFCDevice::~NFCDevice()
     nfc_exit(_nfcContext);
 }
 
-void NFCDevice::open()
+void NFCDevice::open() throw(NFCError)
 {
     if (opened()) {
         return;
@@ -60,7 +60,7 @@ void NFCDevice::close()
     _opened = false;
 }
 
-std::string NFCDevice::scanUID()
+std::string NFCDevice::scanUID() throw(NFCError)
 {
     int res;
     nfc_target nt;

brmdoor_nfc.h

@@ -7,18 +7,34 @@
 #include <nfc/nfc.h>
 #include <nfc/nfc-types.h>
 
+class NFCError: public std::exception
+{
+
+public:
+
+    NFCError(const std::string& msg);
+    
+    const char *what() const throw() {return _msg.c_str();}
+
+    ~NFCError() throw() {}
+
+protected:
+
+    std::string _msg;
+};
+
 class NFCDevice
 {
 
 public:
     
-    NFCDevice();
+    NFCDevice() throw(NFCError);
     
     virtual ~NFCDevice();
 
-    std::string scanUID();
+    std::string scanUID() throw(NFCError);
 
-    void open();
+    void open() throw(NFCError);
 
     bool opened() const {return _opened;}
 
@@ -43,19 +59,3 @@ protected:
 };
 
 
-class NFCError: public std::exception
-{
-
-public:
-
-    NFCError(const std::string& msg);
-    
-    const char *what() const throw() {return _msg.c_str();}
-
-    ~NFCError() throw() {}
-
-protected:
-
-    std::string _msg;
-};
-

runme.py

@@ -1,7 +1,8 @@
 #!/usr/bin/env python
-from brmdoor_nfc import NFCDevice
+from brmdoor_nfc import NFCDevice, NFCError
 from binascii import hexlify
 
+try:
 	nfc = NFCDevice()
 	nfc.close()
 	nfc.open()
@@ -10,3 +11,5 @@ print "Device is opened:", nfc.opened()
 	print "Closing device"
 	nfc.close()
 	print "Device is opened:", nfc.opened()
+except NFCError, e:
+	print "Reading UID failed:", e.what()