diff options
| -rw-r--r-- | src/devreader-linux.cpp | 4 | ||||
| -rw-r--r-- | src/main.cpp | 15 |
2 files changed, 16 insertions, 3 deletions
diff --git a/src/devreader-linux.cpp b/src/devreader-linux.cpp index 5b6e9eb..85824cd 100644 --- a/src/devreader-linux.cpp +++ b/src/devreader-linux.cpp @@ -14,6 +14,8 @@ #include <string> #include <list> +#include <stdexcept> + using namespace std; bool DevReaderLinux::isAvailable() @@ -28,6 +30,6 @@ list<string> DevReaderLinux::findAllDevices() else if(DevReaderLinuxProc::isAvailable()) return DevReaderLinuxProc::findAllDevices(); else - return list<string>(); + throw std::runtime_error("neither sysfs nor proc is available"); } diff --git a/src/main.cpp b/src/main.cpp index c53e142..5b32183 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -48,6 +48,8 @@ #include <string> #include <vector> +#include <stdexcept> + #include <ctype.h> #include <time.h> #include <curses.h> @@ -352,8 +354,17 @@ int main(int argc, char *argv[]) } } - // auto-detect network devices - DevReaderFactory::findAllDevices(); + try + { + // auto-detect network devices + DevReaderFactory::findAllDevices(); + } + catch (std::runtime_error e) + { + cerr << "Cannot find any device: " << e.what() << endl; + return -1; + }; + const map<string, DevReader*>& deviceReaders = DevReaderFactory::getAllDevReaders(); // create one instance of the Device class per device |