1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
15 #include "exitcodes.h"
17 #include "socketengines/socketengine_ports.h"
20 PortsEngine::PortsEngine()
22 int max = ulimit(4, 0);
25 MAX_DESCRIPTORS = max;
30 ServerInstance->Logs->Log("SOCKET", DEFAULT, "ERROR: Can't determine maximum number of open sockets!");
31 printf("ERROR: Can't determine maximum number of open sockets!\n");
32 ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
34 EngineHandle = port_create();
36 if (EngineHandle == -1)
38 ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno));
39 ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: This is a fatal error, exiting now.");
40 printf("ERROR: Could not initialize socket engine: %s\n", strerror(errno));
41 printf("ERROR: This is a fatal error, exiting now.\n");
42 ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
46 ref = new EventHandler* [GetMaxFds()];
47 events = new port_event_t[GetMaxFds()];
48 memset(ref, 0, GetMaxFds() * sizeof(EventHandler*));
51 PortsEngine::~PortsEngine()
53 this->Close(EngineHandle);
58 static int mask_to_events(int event_mask)
61 if (event_mask & (FD_WANT_POLL_READ | FD_WANT_FAST_READ))
63 if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE))
68 bool PortsEngine::AddFd(EventHandler* eh, int event_mask)
71 if ((fd < 0) || (fd > GetMaxFds() - 1))
78 SocketEngine::SetEventMask(eh, event_mask);
79 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(event_mask), eh);
81 ServerInstance->Logs->Log("SOCKET",DEBUG,"New file descriptor: %d", fd);
86 void PortsEngine::WantWrite(EventHandler* eh, int old_mask, int new_mask)
88 if (mask_to_events(new_mask) != mask_to_events(old_mask))
89 port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), mask_to_events(new_mask), eh);
92 bool PortsEngine::DelFd(EventHandler* eh, bool force)
95 if ((fd < 0) || (fd > GetMaxFds() - 1))
98 port_dissociate(EngineHandle, PORT_SOURCE_FD, fd);
103 ServerInstance->Logs->Log("SOCKET",DEBUG,"Remove file descriptor: %d", fd);
107 int PortsEngine::DispatchEvents()
109 struct timespec poll_time;
111 poll_time.tv_sec = 1;
112 poll_time.tv_nsec = 0;
114 unsigned int nget = 1; // used to denote a retrieve request.
115 int i = port_getn(EngineHandle, this->events, GetMaxFds() - 1, &nget, &poll_time);
117 // first handle an error condition
123 for (i = 0; i < nget; i++)
125 switch (this->events[i].portev_source)
129 int fd = this->events[i].portev_object;
130 EventHandler* eh = ref[fd];
133 int mask = eh->GetEventMask();
134 if (events[i].portev_events & POLLWRNORM)
135 mask &= ~(FD_WRITE_WILL_BLOCK | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE);
136 if (events[i].portev_events & POLLRDNORM)
137 mask &= ~FD_READ_WILL_BLOCK;
138 // reinsert port for next time around, pretending to be one-shot for writes
139 SetEventMask(ev, mask);
140 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(mask), eh);
141 if (events[i].portev_events & POLLRDNORM)
144 eh->HandleEvent(EVENT_READ);
146 if (events[i].portev_events & POLLWRNORM)
149 eh->HandleEvent(EVENT_WRITE);
161 std::string PortsEngine::GetName()