/** A specialisation of the SocketEngine class, designed to use linux 2.6 epoll().
*/
-class EPollEngine : public SocketEngine
+namespace
{
-private:
- /** These are used by epoll() to hold socket events
- */
- std::vector<struct epoll_event> events;
int EngineHandle;
-public:
- /** Create a new EPollEngine
- */
- EPollEngine();
- /** Delete an EPollEngine
+
+ /** These are used by epoll() to hold socket events
*/
- virtual ~EPollEngine();
- virtual bool AddFd(EventHandler* eh, int event_mask);
- virtual void OnSetEvent(EventHandler* eh, int old_mask, int new_mask);
- virtual void DelFd(EventHandler* eh);
- virtual int DispatchEvents();
-};
+ std::vector<struct epoll_event> events(1);
+}
-EPollEngine::EPollEngine() : events(1)
+void SocketEngine::Init()
{
- CurrentSetSize = 0;
int max = ulimit(4, 0);
if (max > 0)
{
}
}
-EPollEngine::~EPollEngine()
+void SocketEngine::RecoverFromFork()
+{
+}
+
+void SocketEngine::Deinit()
{
- this->Close(EngineHandle);
+ Close(EngineHandle);
}
static unsigned mask_to_epoll(int event_mask)
return rv;
}
-bool EPollEngine::AddFd(EventHandler* eh, int event_mask)
+bool SocketEngine::AddFd(EventHandler* eh, int event_mask)
{
int fd = eh->GetFd();
if ((fd < 0) || (fd > GetMaxFds() - 1))
struct epoll_event ev;
memset(&ev, 0, sizeof(ev));
ev.events = mask_to_epoll(event_mask);
- ev.data.fd = fd;
+ ev.data.ptr = static_cast<void*>(eh);
int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
if (i < 0)
{
ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "New file descriptor: %d", fd);
- SocketEngine::SetEventMask(eh, event_mask);
- CurrentSetSize++;
+ eh->SetEventMask(event_mask);
ResizeDouble(events);
return true;
}
-void EPollEngine::OnSetEvent(EventHandler* eh, int old_mask, int new_mask)
+void SocketEngine::OnSetEvent(EventHandler* eh, int old_mask, int new_mask)
{
unsigned old_events = mask_to_epoll(old_mask);
unsigned new_events = mask_to_epoll(new_mask);
struct epoll_event ev;
memset(&ev, 0, sizeof(ev));
ev.events = new_events;
- ev.data.fd = eh->GetFd();
+ ev.data.ptr = static_cast<void*>(eh);
epoll_ctl(EngineHandle, EPOLL_CTL_MOD, eh->GetFd(), &ev);
}
}
-void EPollEngine::DelFd(EventHandler* eh)
+void SocketEngine::DelFd(EventHandler* eh)
{
int fd = eh->GetFd();
if ((fd < 0) || (fd > GetMaxFds() - 1))
SocketEngine::DelFdRef(eh);
ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Remove file descriptor: %d", fd);
- CurrentSetSize--;
}
-int EPollEngine::DispatchEvents()
+int SocketEngine::DispatchEvents()
{
int i = epoll_wait(EngineHandle, &events[0], events.size(), 1000);
ServerInstance->UpdateTime();
- TotalEvents += i;
+ stats.TotalEvents += i;
for (int j = 0; j < i; j++)
{
// Copy these in case the vector gets resized and ev invalidated
const epoll_event ev = events[j];
- EventHandler* eh = GetRef(ev.data.fd);
- if (!eh)
- {
- ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Got event on unknown fd: %d", events[j].data.fd);
- epoll_ctl(EngineHandle, EPOLL_CTL_DEL, events[j].data.fd, &events[j]);
+ EventHandler* const eh = static_cast<EventHandler*>(ev.data.ptr);
+ const int fd = eh->GetFd();
+ if (fd < 0)
continue;
- }
if (ev.events & EPOLLHUP)
{
- ErrorEvents++;
+ stats.ErrorEvents++;
eh->HandleEvent(EVENT_ERROR, 0);
continue;
}
if (ev.events & EPOLLERR)
{
- ErrorEvents++;
+ stats.ErrorEvents++;
/* Get error number */
socklen_t codesize = sizeof(int);
int errcode;
- if (getsockopt(ev.data.fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
+ if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
errcode = errno;
eh->HandleEvent(EVENT_ERROR, errcode);
continue;
mask = nm;
}
}
- SetEventMask(eh, mask);
+ eh->SetEventMask(mask);
if (ev.events & EPOLLIN)
{
- ReadEvents++;
+ stats.ReadEvents++;
eh->HandleEvent(EVENT_READ);
- if (eh != GetRef(ev.data.fd))
+ if (eh != GetRef(fd))
// whoa! we got deleted, better not give out the write event
continue;
}
if (ev.events & EPOLLOUT)
{
- WriteEvents++;
+ stats.WriteEvents++;
eh->HandleEvent(EVENT_WRITE);
}
}
return i;
}
-
-SocketEngine* CreateSocketEngine()
-{
- return new EPollEngine;
-}