private:
/** Private state maintained by socket engine */
int event_mask;
+
+ void SetEventMask(int mask) { event_mask = mask; }
+
protected:
/** File descriptor.
* All events which can be handled must have a file descriptor. This
private:
/** Reference table, contains all current handlers
**/
- std::vector<EventHandler*> ref;
+ static std::vector<EventHandler*> ref;
protected:
/** Current number of descriptors in the engine
*/
- size_t CurrentSetSize;
+ static size_t CurrentSetSize;
/** List of handlers that want a trial read/write
*/
- std::set<int> trials;
+ static std::set<int> trials;
- int MAX_DESCRIPTORS;
+ static int MAX_DESCRIPTORS;
/** Socket engine statistics: count of various events, bandwidth usage
*/
- Statistics stats;
+ static Statistics stats;
- virtual void OnSetEvent(EventHandler* eh, int old_mask, int new_mask) = 0;
- void SetEventMask(EventHandler* eh, int value);
+ static void OnSetEvent(EventHandler* eh, int old_mask, int new_mask);
/** Add an event handler to the base socket engine. AddFd(EventHandler*, int) should call this.
*/
- bool AddFdRef(EventHandler* eh);
+ static bool AddFdRef(EventHandler* eh);
- void DelFdRef(EventHandler* eh);
+ static void DelFdRef(EventHandler* eh);
template <typename T>
- void ResizeDouble(std::vector<T>& vect)
+ static void ResizeDouble(std::vector<T>& vect)
{
- if (CurrentSetSize > vect.size())
+ if (SocketEngine::CurrentSetSize > vect.size())
vect.resize(vect.size() * 2);
}
* failure (for example, you try and enable
* epoll on a 2.4 linux kernel) then this
* function may bail back to the shell.
+ * @return void, but it is acceptable for this function to bail back to
+ * the shell or operating system on fatal error.
*/
- SocketEngine();
+ static void Init();
/** Destructor.
* The destructor transparently tidies up
* any resources used by the socket engine.
*/
- virtual ~SocketEngine();
+ static void Deinit();
/** Add an EventHandler object to the engine. Use AddFd to add a file
* descriptor to the engine and have the socket engine monitor it. You
* @param eh An event handling object to add
* @param event_mask The initial event mask for the object
*/
- virtual bool AddFd(EventHandler* eh, int event_mask) = 0;
+ static bool AddFd(EventHandler* eh, int event_mask);
/** If you call this function and pass it an
* event handler, that event handler will
* @param eh The event handler to change
* @param event_mask The changes to make to the wait state
*/
- void ChangeEventMask(EventHandler* eh, int event_mask);
+ static void ChangeEventMask(EventHandler* eh, int event_mask);
/** Returns the highest file descriptor you may store in the socket engine
* @return The maximum fd value
*/
- inline int GetMaxFds() const { return MAX_DESCRIPTORS; }
+ static int GetMaxFds() { return MAX_DESCRIPTORS; }
/** Returns the number of file descriptors being queried
* @return The set size
*/
- inline size_t GetUsedFds() const { return CurrentSetSize; }
+ static size_t GetUsedFds() { return CurrentSetSize; }
/** Delete an event handler from the engine.
* This function call deletes an EventHandler
* required you must do this yourself.
* @param eh The event handler object to remove
*/
- virtual void DelFd(EventHandler* eh) = 0;
+ static void DelFd(EventHandler* eh);
/** Returns true if a file descriptor exists in
* the socket engine's list.
* @param fd The event handler to look for
* @return True if this fd has an event handler
*/
- virtual bool HasFd(int fd);
+ static bool HasFd(int fd);
/** Returns the EventHandler attached to a specific fd.
* If the fd isnt in the socketengine, returns NULL.
* @param fd The event handler to look for
* @return A pointer to the event handler, or NULL
*/
- virtual EventHandler* GetRef(int fd);
+ static EventHandler* GetRef(int fd);
/** Waits for events and dispatches them to handlers. Please note that
* this doesn't wait long, only a couple of milliseconds. It returns the
* value.
* @return The number of events which have occured.
*/
- virtual int DispatchEvents() = 0;
+ static int DispatchEvents();
/** Dispatch trial reads and writes. This causes the actual socket I/O
* to happen when writes have been pre-buffered.
*/
- virtual void DispatchTrialWrites();
+ static void DispatchTrialWrites();
/** Returns true if the file descriptors in the given event handler are
* within sensible ranges which can be handled by the socket engine.
*/
- virtual bool BoundsCheckFd(EventHandler* eh);
+ static bool BoundsCheckFd(EventHandler* eh);
/** Abstraction for BSD sockets accept(2).
* This function should emulate its namesake system call exactly.
* @param flags A flag value that controls the sending of the data.
* @return This method should return exactly the same values as the system call it emulates.
*/
- int Send(EventHandler* fd, const void *buf, size_t len, int flags);
+ static int Send(EventHandler* fd, const void *buf, size_t len, int flags);
/** Abstraction for BSD sockets recv(2).
* This function should emulate its namesake system call exactly.
* @param flags A flag value that controls the reception of the data.
* @return This method should return exactly the same values as the system call it emulates.
*/
- int Recv(EventHandler* fd, void *buf, size_t len, int flags);
+ static int Recv(EventHandler* fd, void *buf, size_t len, int flags);
/** Abstraction for BSD sockets recvfrom(2).
* This function should emulate its namesake system call exactly.
* @param fromlen The size of the from parameter.
* @return This method should return exactly the same values as the system call it emulates.
*/
- int RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen);
+ static int RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen);
/** Abstraction for BSD sockets sendto(2).
* This function should emulate its namesake system call exactly.
* @param tolen The size of the to parameter.
* @return This method should return exactly the same values as the system call it emulates.
*/
- int SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen);
+ static int SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen);
/** Abstraction for BSD sockets connect(2).
* This function should emulate its namesake system call exactly.
* @return void, but it is acceptable for this function to bail back to
* the shell or operating system on fatal error.
*/
- virtual void RecoverFromFork();
+ static void RecoverFromFork();
/** Get data transfer and event statistics
*/
- const Statistics& GetStats() const { return stats; }
+ static const Statistics& GetStats() { return stats; }
/** Should we ignore the error in errno?
* Checks EAGAIN and WSAEWOULDBLOCK
return false;
}
-
-SocketEngine* CreateSocketEngine();
projects / user / henk / code / inspircd.git / blobdiff