*/
#include "socketengine_iocp.h"
+#include "exitcodes.h"
#include <mswsock.h>
IOCPEngine::IOCPEngine(InspIRCd * Instance) : SocketEngine(Instance)
{
- // Create completion port
+ /* Create completion port */
m_completionPort = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, (ULONG_PTR)0, 0);
- // Null variables out.
+ if (!m_completionPort)
+ {
+ ServerInstance->Log(SPARSE,"ERROR: Could not initialize socket engine. Your kernel probably does not have the proper features.");
+ 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.");
+ ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
+ }
+
+ /* Null variables out. */
CurrentSetSize = 0;
EngineHandle = 0;
memset(ref, 0, sizeof(EventHandler*) * MAX_DESCRIPTORS);
IOCPEngine::~IOCPEngine()
{
+ /* Clean up winsock and close completion port */
CloseHandle(m_completionPort);
+ WSACleanup();
}
bool IOCPEngine::AddFd(EventHandler* eh)
{
- int fake_fd = GenerateFd();
+ /* Does it at least look valid? */
+ if (!eh)
+ return false;
+
+ int* fake_fd = new int(GenerateFd(eh->GetFd()));
int is_accept = 0;
int opt_len = sizeof(int);
- if(fake_fd < 0)
+
+ /* In range? */
+ if ((*fake_fd < 0) || (*fake_fd > MAX_DESCRIPTORS))
+ return false;
+
+ /* Already an entry here */
+ if (ref[*fake_fd])
+ {
+ delete fake_fd;
return false;
+ }
- // are we a listen socket?
+ /* 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;
+ /* set up the read event so the socket can actually receive data :P */
+ eh->Extend("internal_fd", fake_fd);
- // assign the socket to the completion port
- if(!CreateIoCompletionPort((HANDLE)eh->GetFd(), m_completionPort, (ULONG_PTR)eh->m_internalFd, 0))
+ 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;
+ /* set up binding, increase set size */
+ ref[*fake_fd] = eh;
++CurrentSetSize;
- // setup initial events
+ /* setup initial events */
if(is_accept)
PostAcceptEvent(eh);
else
PostReadEvent(eh);
- // log message
- ServerInstance->Log(DEBUG, "New fake fd: %u, real fd: %u, address 0x%p", fake_fd, eh->GetFd(), eh);
+ /* log message */
+ 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
+ /* post a write event if there is data to be written */
if(eh->Writeable())
WantWrite(eh);
- // we're all good =)
- m_binding.insert( map<int, EventHandler*>::value_type( eh->GetFd(), eh ) );
+ /* we're all good =) */
+ try
+ {
+ m_binding.insert( map<int, EventHandler*>::value_type( eh->GetFd(), eh ) );
+ }
+ catch (...)
+ {
+ /* Ohshi-, map::insert failed :/ */
+ return false;
+ }
+
return true;
}
bool IOCPEngine::DelFd(EventHandler* eh, bool force /* = false */)
{
- int fake_fd = eh->m_internalFd;
+ if (!eh)
+ return false;
+
+ int* fake_fd = NULL;
+
+ if (!eh->GetExt("internal_fd", fake_fd))
+ return false;
+
int fd = eh->GetFd();
- if(ref[fake_fd] == 0)
+ 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;
- // Cancel pending i/o operations.
+ 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)
- delete ((Overlapped*)eh->m_readEvent);
+ /* Free the buffer, and delete the event. */
+ if (eh->GetExt("windows_readevent", m_readEvent))
+ {
+ if(((Overlapped*)m_readEvent)->m_params != 0)
+ delete ((udp_overlap*)((Overlapped*)m_readEvent)->m_params);
- if(eh->m_writeEvent != 0)
- delete ((Overlapped*)eh->m_writeEvent);
+ delete ((Overlapped*)m_readEvent);
+ eh->Shrink("windows_readevent");
+ }
- if(eh->m_acceptEvent != 0)
+ if(eh->GetExt("windows_writeevent", m_writeEvent))
{
- delete ((accept_overlap*)((Overlapped*)eh->m_acceptEvent)->m_params);
- delete ((Overlapped*)eh->m_acceptEvent);
+ delete ((Overlapped*)m_writeEvent);
+ eh->Shrink("windows_writeevent");
}
- // Clear binding
- ref[fake_fd] = 0;
+ if(eh->GetExt("windows_acceptevent", m_acceptEvent))
+ {
+ delete ((accept_overlap*)((Overlapped*)m_acceptEvent)->m_params);
+ delete ((Overlapped*)m_acceptEvent);
+ eh->Shrink("windows_accepevent");
+ }
+
+ /* Clear binding */
+ ref[*fake_fd] = 0;
m_binding.erase(eh->GetFd());
- // decrement set size
+ delete fake_fd;
+ eh->Shrink("internal_fd");
+
+ /* decrement set size */
--CurrentSetSize;
- // success
+ /* success */
return true;
}
void IOCPEngine::WantWrite(EventHandler* eh)
{
- // Post event - write begin
- if(!eh->m_writeEvent)
+ 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->GetExt("windows_writeevent", m_writeEvent))
{
+ ULONG_PTR completion_key = (ULONG_PTR)*fake_fd;
Overlapped * ov = new Overlapped(SOCKET_IO_EVENT_WRITE_READY, 0);
- eh->m_writeEvent = (void*)ov;
- PostQueuedCompletionStatus(m_completionPort, 0, (ULONG_PTR)eh->m_internalFd, &ov->m_overlap);
+ eh->Shrink("windows_writeevent");
+ eh->Extend("windows_writeevent",ov);
+ PostQueuedCompletionStatus(m_completionPort, 0, completion_key, &ov->m_overlap);
}
}
bool IOCPEngine::PostCompletionEvent(EventHandler * eh, SocketIOEvent type, int param)
{
+ if (!eh)
+ return false;
+
+ int* fake_fd = NULL;
+ if (!eh->GetExt("internal_fd", fake_fd))
+ return false;
+
Overlapped * ov = new Overlapped(type, param);
- return PostQueuedCompletionStatus(m_completionPort, 0, (ULONG_PTR)eh->m_internalFd, &ov->m_overlap);
+ ULONG_PTR completion_key = (ULONG_PTR)*fake_fd;
+ return PostQueuedCompletionStatus(m_completionPort, 0, completion_key, &ov->m_overlap);
}
void IOCPEngine::PostReadEvent(EventHandler * eh)
{
+ if (!eh)
+ return;
+
Overlapped * ov = new Overlapped(SOCKET_IO_EVENT_READ_READY, 0);
DWORD flags = 0;
DWORD r_length = 0;
WSABUF buf;
- // by passing a null buffer pointer, we can have this working in the same way as epoll..
- // its slower, but it saves modifying all network code.
+ /* by passing a null buffer pointer, we can have this working in the same way as epoll..
+ * its slower, but it saves modifying all network code.
+ */
buf.buf = 0;
buf.len = 0;
- // determine socket type.
+ /* determine socket type. */
DWORD sock_type;
int sock_len = sizeof(DWORD);
if(getsockopt(eh->GetFd(), SOL_SOCKET, SO_TYPE, (char*)&sock_type, &sock_len) == -1)
{
- // wtfhax?
+ /* wtfhax? */
PostCompletionEvent(eh, SOCKET_IO_EVENT_ERROR, 0);
delete ov;
return;
}
switch(sock_type)
{
- case SOCK_DGRAM: // UDP Socket
+ case SOCK_DGRAM: /* UDP Socket */
{
- if(WSARecvFrom(eh->GetFd(), &buf, 1, &r_length, &flags, 0, 0, &ov->m_overlap, 0))
+ udp_overlap * uv = new udp_overlap;
+ uv->udp_sockaddr_len = sizeof(sockaddr);
+ buf.buf = (char*)uv->udp_buffer;
+ buf.len = sizeof(uv->udp_buffer);
+ ov->m_params = (unsigned long)uv;
+ if(WSARecvFrom(eh->GetFd(), &buf, 1, &uv->udp_len, &flags, uv->udp_sockaddr, (LPINT)&uv->udp_sockaddr_len, &ov->m_overlap, 0))
{
int err = WSAGetLastError();
- if(WSAGetLastError() != WSA_IO_PENDING)
+ if(err != WSA_IO_PENDING)
{
delete ov;
PostCompletionEvent(eh, SOCKET_IO_EVENT_ERROR, 0);
return;
}
}
- }break;
+ }
+ break;
- case SOCK_STREAM: // TCP Socket
+ case SOCK_STREAM: /* TCP Socket */
{
if(WSARecv(eh->GetFd(), &buf, 1, &r_length, &flags, &ov->m_overlap, 0) == SOCKET_ERROR)
{
return;
}
}
- }break;
+ }
+ break;
- default:
+ default:
{
printf("unknwon socket type: %u\n", sock_type);
return;
- }break;
+ }
+ break;
}
- eh->m_readEvent = (void*)ov;
+ eh->Extend("windows_readevent", ov);
}
int IOCPEngine::DispatchEvents()
LPOVERLAPPED overlap;
Overlapped * ov;
EventHandler * eh;
- int intfd;
+ ULONG_PTR intfd;
int ret;
unsigned long bytes_recv;
- while(GetQueuedCompletionStatus(m_completionPort, &len, (PULONG_PTR)&intfd, &overlap, 100))
+ 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);
- if(eh == 0) continue;
+
+ 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:
+ case SOCKET_IO_EVENT_WRITE_READY:
{
- eh->m_writeEvent = 0;
+ eh->Shrink("windows_writeevent");
eh->HandleEvent(EVENT_WRITE, 0);
- }break;
+ }
+ break;
- case SOCKET_IO_EVENT_READ_READY:
+ case SOCKET_IO_EVENT_READ_READY:
{
- ret = ioctlsocket(eh->GetFd(), FIONREAD, &bytes_recv);
- eh->m_readEvent = 0;
- if(ret != 0 || bytes_recv == 0)
+ if(ov->m_params)
{
- // end of file
- PostCompletionEvent(eh, SOCKET_IO_EVENT_ERROR, EIO);
+ // if we had params, it means we are a udp socket with a udp_overlap pointer in this long.
+ udp_overlap * uv = (udp_overlap*)ov->m_params;
+ uv->udp_len = len;
+ this->udp_ov = uv;
+ eh->Shrink("windows_readevent");
+ eh->HandleEvent(EVENT_READ, 0);
+ this->udp_ov = 0;
+ delete uv;
+ PostReadEvent(eh);
}
else
{
- eh->HandleEvent(EVENT_READ, 0);
- PostReadEvent(eh);
+ ret = ioctlsocket(eh->GetFd(), FIONREAD, &bytes_recv);
+ eh->Shrink("windows_readevent");
+ if(ret != 0 || bytes_recv == 0)
+ {
+ /* end of file */
+ PostCompletionEvent(eh, SOCKET_IO_EVENT_ERROR, EIO); /* Old macdonald had an error, EIEIO. */
+ }
+ else
+ {
+ eh->HandleEvent(EVENT_READ, 0);
+ PostReadEvent(eh);
+ }
}
- }break;
+ }
+ break;
- case SOCKET_IO_EVENT_ACCEPT:
+ case SOCKET_IO_EVENT_ACCEPT:
{
/* 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;
+ }
+ break;
- case SOCKET_IO_EVENT_ERROR:
+ case SOCKET_IO_EVENT_ERROR:
{
eh->HandleEvent(EVENT_ERROR, ov->m_params);
- }break;
+ }
+ break;
}
delete ov;
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;
+ accept_overlap* ao = new accept_overlap;
memset(ao->buf, 0, 1024);
ao->socket = fd;
- Overlapped * ov = new Overlapped(SOCKET_IO_EVENT_ACCEPT, (int)ao);
- eh->m_acceptEvent = (void*)ov;
+ Overlapped* ov = new Overlapped(SOCKET_IO_EVENT_ACCEPT, (int)ao);
+ eh->Extend("windows_acceptevent", ov);
if(AcceptEx(eh->GetFd(), fd, ao->buf, 0, len, len, &dwBytes, &ov->m_overlap) == FALSE)
{
return "iocp";
}
-int __accept_socket(SOCKET s, sockaddr * addr, int * addrlen, void * acceptevent)
+EventHandler * IOCPEngine::GetRef(int fd)
+{
+ map<int, EventHandler*>::iterator itr = m_binding.find(fd);
+ return (itr == m_binding.end()) ? 0 : itr->second;
+}
+
+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)
+ return 0;
+ return ref[fd];
+}
+
+int IOCPEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen)
{
- Overlapped * ovl = (Overlapped*)acceptevent;
- accept_overlap * ov = (accept_overlap*)ovl->m_params;
+ SOCKET s = fd->GetFd();
- sockaddr_in * server_address = (sockaddr_in*)&ov->buf[10];
- sockaddr_in * client_address = (sockaddr_in*)&ov->buf[38];
+ Overlapped* acceptevent = NULL;
+ if (!fd->GetExt("windows_acceptevent", acceptevent))
+ /* Shit, no accept event on this socket! :( */
+ return -1;
+
+ Overlapped* ovl = acceptevent;
+ accept_overlap* ov = (accept_overlap*)ovl->m_params;
+
+ sockaddr_in* server_address = (sockaddr_in*)&ov->buf[10];
+ sockaddr_in* client_address = (sockaddr_in*)&ov->buf[38];
memcpy(addr, client_address, sizeof(sockaddr_in));
*addrlen = sizeof(sockaddr_in);
return ov->socket;
}
-int __getsockname(SOCKET s, sockaddr * name, int * namelen, void * acceptevent)
+int IOCPEngine::GetSockName(EventHandler* fd, sockaddr *name, socklen_t* name)
{
- Overlapped * ovl = (Overlapped*)acceptevent;
- accept_overlap * ov = (accept_overlap*)ovl->m_params;
+ Overlapped* ovl = NULL;
+
+ if (!fd->GetExt("windows_acceptevent", acceptevent))
+ return -1;
+
+ accept_overlap* ov = (accept_overlap*)ovl->m_params;
- sockaddr_in * server_address = (sockaddr_in*)&ov->buf[10];
- sockaddr_in * client_address = (sockaddr_in*)&ov->buf[38];
+ sockaddr_in* server_address = (sockaddr_in*)&ov->buf[10];
+ sockaddr_in* client_address = (sockaddr_in*)&ov->buf[38];
memcpy(name, server_address, sizeof(sockaddr_in));
*namelen = sizeof(sockaddr_in);
return 0;
}
-EventHandler * IOCPEngine::GetRef(int fd)
+int IOCPEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
{
- map<int, EventHandler*>::iterator itr = m_binding.find(fd);
- return (itr == m_binding.end()) ? 0 : itr->second;
+ udp_overlap * ov = NULL;
+ if (!fd->GetExt("windows_readevent", ov))
+ return -1;
+ memcpy(buf, ov->udp_buffer, ov->udp_len);
+ memcpy(from, ov->udp_sockaddr, *fromlen);
+ return ov->udp_len;
}
-bool IOCPEngine::HasFd(int fd)
+int IOCPEngine::Blocking(int fd)
{
- return (GetRef(fd) != 0);
+ unsigned long opt = 0;
+ ioctlsocket(s, FIONBIO, &opt);
}
-EventHandler * IOCPEngine::GetIntRef(int fd)
+int IOCPEngine::NonBlocking(int fd)
{
- if(fd < 0 || fd > MAX_DESCRIPTORS)
- return 0;
- return ref[fd];
+ unsigned long opt = 1;
+ ioctlsocket(s, FIONBIO, &opt);
}
+
+int IOCPEngine::Close(int fd)
+{
+ return closesocket(socket);
+}
+
+int IOCPEngine::Close(EventHandler* fd)
+{
+ return this->Close(fd->GetFd());
+}
+