diff options
| -rw-r--r-- | include/modules.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/modules.h b/include/modules.h index 2e0a614c5..ffa951626 100644 --- a/include/modules.h +++ b/include/modules.h @@ -287,14 +287,32 @@ class ExtMode : public classbase }; +/** This class can be used on its own to represent an exception, or derived to represent a module-specific exception. + * When a module whishes to abort, e.g. within a constructor, it should throw an exception using ModuleException or + * a class derived from ModuleException. If a module throws an exception during its constructor, the module will not + * be loaded. If this happens, the error message returned by ModuleException::GetReason will be displayed to the user + * attempting to load the module, or dumped to the console if the ircd is currently loading for the first time. + */ class ModuleException { private: + /** Holds the error message to be displayed + */ std::string err; public: + /** Default constructor, just uses the error mesage 'Module threw an exception'. + */ ModuleException() : err("Module threw an exception") {} + /** This constructor can be used to specify an error message before throwing. + */ ModuleException(std::string message) : err(message) {} + /** This destructor solves world hunger, cancels the world debt, and causes the world to end. + * Actually no, it does nothing. Never mind. + */ virtual ~ModuleException() {}; + /** Returns the reason for the exception. + * The module should probably put something informative here as the user will see this upon failure. + */ virtual char *GetReason() { return (char*)err.c_str(); @@ -332,6 +350,7 @@ class Module : public classbase /** Default constructor * Creates a module class. * @param Me An instance of the Server class which can be saved for future use + * \exception ModuleException { Throwing this class, or any class derived from ModuleException, causes loading of the module to abort. } */ Module(Server* Me); |