]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/socketengine_iocp.cpp
Add <hostchange:ports> to the m_hostchange module to implement feature in bug #363
[user/henk/code/inspircd.git] / src / socketengine_iocp.cpp
index ff1c7a0bc029d1390d2a3ba29e8642594929ffda..4eb9f83cd69a25135f8645c3af8f81c20739b45d 100644 (file)
@@ -26,7 +26,7 @@ IOCPEngine::IOCPEngine(InspIRCd * Instance) : SocketEngine(Instance)
                ServerInstance->Log(SPARSE,"ERROR: this is a fatal error, exiting now.");
                printf("ERROR: Could not initialize socket engine. Your kernel probably does not have the proper features.");
                printf("ERROR: this is a fatal error, exiting now.");
-               InspIRCd::Exit(EXIT_STATUS_SOCKETENGINE);
+               ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
        }
 
        /* Null variables out. */
@@ -46,33 +46,34 @@ bool IOCPEngine::AddFd(EventHandler* eh)
        if (!eh)
                return false;
 
-       int fake_fd = GenerateFd(eh->GetFd());
+       int* fake_fd = new int(GenerateFd(eh->GetFd()));
        int is_accept = 0;
        int opt_len = sizeof(int);
 
        /* In range? */
-       if ((fake_fd < 0) || (fake_fd > MAX_DESCRIPTORS))
+       if ((*fake_fd < 0) || (*fake_fd > MAX_DESCRIPTORS))
                return false;
 
        /* Already an entry here */
-       if (ref[fake_fd])
+       if (ref[*fake_fd])
+       {
+               delete fake_fd;
                return false;
+       }
 
        /* are we a listen socket? */
        getsockopt(eh->GetFd(), SOL_SOCKET, SO_ACCEPTCONN, (char*)&is_accept, &opt_len);
 
        /* set up the read event so the socket can actually receive data :P */
-       eh->m_internalFd = fake_fd;
-       eh->m_writeEvent = 0;
-       eh->m_acceptEvent = 0;
+       eh->Extend("internal_fd", fake_fd);
 
-       unsigned long completion_key = (ULONG_PTR)eh->m_internalFd;
+       unsigned long completion_key = (ULONG_PTR)*fake_fd;
        /* assign the socket to the completion port */
        if (!CreateIoCompletionPort((HANDLE)eh->GetFd(), m_completionPort, completion_key, 0))
                return false;
 
        /* set up binding, increase set size */
-       ref[fake_fd] = eh;
+       ref[*fake_fd] = eh;
        ++CurrentSetSize;
 
        /* setup initial events */
@@ -82,7 +83,7 @@ bool IOCPEngine::AddFd(EventHandler* eh)
                PostReadEvent(eh);
 
        /* log message */
-       ServerInstance->Log(DEBUG, "New fake fd: %u, real fd: %u, address 0x%p", fake_fd, eh->GetFd(), eh);
+       ServerInstance->Log(DEBUG, "New fake fd: %u, real fd: %u, address 0x%p", *fake_fd, eh->GetFd(), eh);
 
        /* post a write event if there is data to be written */
        if(eh->Writeable())
@@ -107,40 +108,56 @@ bool IOCPEngine::DelFd(EventHandler* eh, bool force /* = false */)
        if (!eh)
                return false;
 
-       int fake_fd = eh->m_internalFd;
+       int* fake_fd = NULL;
+
+       if (!eh->GetExt("internal_fd", fake_fd))
+               return false;
+
        int fd = eh->GetFd();
        
-       if (!ref[fake_fd])
+       if (!ref[*fake_fd])
                return false;
 
-       ServerInstance->Log(DEBUG, "Removing fake fd %u, real fd %u, address 0x%p", fake_fd, eh->GetFd(), eh);
+       void* m_readEvent = NULL;
+       void* m_writeEvent = NULL;
+       void* m_acceptEvent = NULL;
+
+       ServerInstance->Log(DEBUG, "Removing fake fd %u, real fd %u, address 0x%p", *fake_fd, eh->GetFd(), eh);
 
        /* Cancel pending i/o operations. */
        if (CancelIo((HANDLE)fd) == FALSE)
                return false;
 
        /* Free the buffer, and delete the event. */
-       if (eh->m_readEvent != 0)
+       if (eh->GetExt("windows_readevent", m_readEvent))
        {
-               if(((Overlapped*)eh->m_readEvent)->m_params != 0)
-                       delete ((udp_overlap*)((Overlapped*)eh->m_readEvent)->m_params);
+               if(((Overlapped*)m_readEvent)->m_params != 0)
+                       delete ((udp_overlap*)((Overlapped*)m_readEvent)->m_params);
 
-               delete ((Overlapped*)eh->m_readEvent);
+               delete ((Overlapped*)m_readEvent);
+               eh->Shrink("windows_readevent");
        }
 
-       if(eh->m_writeEvent != 0)
-               delete ((Overlapped*)eh->m_writeEvent);
+       if(eh->GetExt("windows_writeevent", m_writeEvent))
+       {
+               delete ((Overlapped*)m_writeEvent);
+               eh->Shrink("windows_writeevent");
+       }
 
-       if(eh->m_acceptEvent != 0)
+       if(eh->GetExt("windows_acceptevent", m_acceptEvent))
        {
-               delete ((accept_overlap*)((Overlapped*)eh->m_acceptEvent)->m_params);
-               delete ((Overlapped*)eh->m_acceptEvent);
+               delete ((accept_overlap*)((Overlapped*)m_acceptEvent)->m_params);
+               delete ((Overlapped*)m_acceptEvent);
+               eh->Shrink("windows_accepevent");
        }
 
        /* Clear binding */
-       ref[fake_fd] = 0;
+       ref[*fake_fd] = 0;
        m_binding.erase(eh->GetFd());
 
+       delete fake_fd;
+       eh->Shrink("internal_fd");
+
        /* decrement set size */
        --CurrentSetSize;
        
@@ -152,13 +169,20 @@ void IOCPEngine::WantWrite(EventHandler* eh)
 {
        if (!eh)
                return;
+       
+       void* m_writeEvent = NULL;
+
+       int* fake_fd = NULL;
+       if (!eh->GetExt("internal_fd", fake_fd))
+               return;
 
        /* Post event - write begin */
-       if(!eh->m_writeEvent)
+       if(!eh->GetExt("windows_writeevent", m_writeEvent))
        {
-               ULONG_PTR completion_key = (ULONG_PTR)eh->m_internalFd;
+               ULONG_PTR completion_key = (ULONG_PTR)*fake_fd;
                Overlapped * ov = new Overlapped(SOCKET_IO_EVENT_WRITE_READY, 0);
-               eh->m_writeEvent = (void*)ov;
+               eh->Shrink("windows_writeevent");
+               eh->Extend("windows_writeevent",ov);
                PostQueuedCompletionStatus(m_completionPort, 0, completion_key, &ov->m_overlap);
        }
 }
@@ -168,8 +192,12 @@ bool IOCPEngine::PostCompletionEvent(EventHandler * eh, SocketIOEvent type, int
        if (!eh)
                return false;
 
+       int* fake_fd = NULL;
+       if (!eh->GetExt("internal_fd", fake_fd))
+               return false;
+
        Overlapped * ov = new Overlapped(type, param);
-       ULONG_PTR completion_key = (ULONG_PTR)eh->m_internalFd;
+       ULONG_PTR completion_key = (ULONG_PTR)*fake_fd;
        return PostQueuedCompletionStatus(m_completionPort, 0, completion_key, &ov->m_overlap);
 }
 
@@ -242,7 +270,7 @@ void IOCPEngine::PostReadEvent(EventHandler * eh)
                }
                break;
        }
-       eh->m_readEvent = (void*)ov;
+       eh->Extend("windows_readevent", ov);
 }
 
 int IOCPEngine::DispatchEvents()
@@ -257,6 +285,9 @@ int IOCPEngine::DispatchEvents()
 
        while (GetQueuedCompletionStatus(m_completionPort, &len, &intfd, &overlap, 1000))
        {
+               if (intfd < 0 || intfd > MAX_DESCRIPTORS)
+                       continue;
+
                // woot, we got an event on a socket :P
                eh = ref[intfd];
                ov = CONTAINING_RECORD(overlap, Overlapped, m_overlap);
@@ -264,11 +295,17 @@ int IOCPEngine::DispatchEvents()
                if (eh == 0)
                        continue;
 
+               void* m_readEvent = NULL;
+               void* m_writeEvent = NULL;
+
+               eh->GetExt("windows_readevent", m_readEvent);
+               eh->GetExt("windows_writeevent", m_writeEvent);
+
                switch(ov->m_event)
                {
                        case SOCKET_IO_EVENT_WRITE_READY:
                        {
-                               eh->m_writeEvent = 0;
+                               eh->Shrink("windows_writeevent");
                                eh->HandleEvent(EVENT_WRITE, 0);
                        }
                        break;
@@ -281,7 +318,7 @@ int IOCPEngine::DispatchEvents()
                                        udp_overlap * uv = (udp_overlap*)ov->m_params;
                                        uv->udp_len = len;
                                        this->udp_ov = uv;
-                                       eh->m_readEvent = 0;
+                                       eh->Shrink("windows_readevent");
                                        eh->HandleEvent(EVENT_READ, 0);
                                        this->udp_ov = 0;
                                        delete uv;
@@ -290,7 +327,7 @@ int IOCPEngine::DispatchEvents()
                                else
                                {
                                        ret = ioctlsocket(eh->GetFd(), FIONREAD, &bytes_recv);
-                                       eh->m_readEvent = 0;
+                                       eh->Shrink("windows_readevent");
                                        if(ret != 0 || bytes_recv == 0)
                                        {
                                                /* end of file */
@@ -310,7 +347,7 @@ int IOCPEngine::DispatchEvents()
                                /* this is kinda messy.. :/ */
                                eh->HandleEvent(EVENT_READ, ov->m_params);
                                delete ((accept_overlap*)ov->m_params);
-                               eh->m_acceptEvent = 0;
+                               eh->Shrink("windows_acceptevent");
                                PostAcceptEvent(eh);
                        }
                        break;
@@ -333,7 +370,19 @@ void IOCPEngine::PostAcceptEvent(EventHandler * eh)
        if (!eh)
                return;
 
+       int on = 1;
+       u_long arg = 1;
+       struct linger linger = { 0 };
+
        int fd = WSASocket(AF_INET, SOCK_STREAM, 0, 0, 0, WSA_FLAG_OVERLAPPED);
+
+       setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
+       /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
+       linger.l_onoff = 1;
+       linger.l_linger = 1;
+       setsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&linger,sizeof(linger));
+       ioctlsocket(fd, FIONBIO, &arg);
+
        int len = sizeof(sockaddr_in) + 16;
        DWORD dwBytes;
        accept_overlap* ao = new accept_overlap;
@@ -341,7 +390,7 @@ void IOCPEngine::PostAcceptEvent(EventHandler * eh)
        ao->socket = fd;
 
        Overlapped* ov = new Overlapped(SOCKET_IO_EVENT_ACCEPT, (int)ao);
-       eh->m_acceptEvent = (void*)ov;
+       eh->Extend("windows_acceptevent", ov);
 
        if(AcceptEx(eh->GetFd(), fd, ao->buf, 0, len, len, &dwBytes, &ov->m_overlap) == FALSE)
        {
@@ -405,6 +454,21 @@ bool IOCPEngine::HasFd(int fd)
        return (GetRef(fd) != 0);
 }
 
+bool IOCPEngine::BoundsCheckFd(EventHandler* eh)
+{
+       int * internal_fd;
+       if (!eh || eh->GetFd() < 0)
+               return false;
+
+       if(!eh->GetExt("internal_fd", internal_fd))
+               return false;
+
+       if(*internal_fd > MAX_DESCRIPTORS)
+               return false;
+
+       return true;
+}
+
 EventHandler * IOCPEngine::GetIntRef(int fd)
 {
        if(fd < 0 || fd > MAX_DESCRIPTORS)