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authorbrain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>2005-12-12 09:53:10 +0000
committerbrain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>2005-12-12 09:53:10 +0000
commit58f0da0eb938fb26b6c90b049e682ec26e9b7824 (patch)
tree5a11c70468f294334f7a112bffa4a5fa8e3db41c /src/socketengine.cpp
parentef7e7d0ede476ca4d57485891704a2d99bd03c88 (diff)
Added preliminary socketengine stuff
git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@2321 e03df62e-2008-0410-955e-edbf42e46eb7
Diffstat (limited to 'src/socketengine.cpp')
-rw-r--r--src/socketengine.cpp157
1 files changed, 157 insertions, 0 deletions
diff --git a/src/socketengine.cpp b/src/socketengine.cpp
new file mode 100644
index 000000000..d6255e9e3
--- /dev/null
+++ b/src/socketengine.cpp
@@ -0,0 +1,157 @@
+#ifdef USE_EPOLL
+#include <sys/epoll.h>
+#define EP_DELAY 5
+#endif
+#ifdef USE_KQUEUE
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/time.h>
+#endif
+
+
+char ref[65535];
+
+const char X_LISTEN = 0;
+const char X_ESTAB_CLIENT = 1;
+const char X_ESTAB_MODULE = 2;
+const char X_ESTAB_DNS = 3;
+
+const char X_READBIT = 0x80;
+
+SocketEngine::SocketEngine()
+{
+#ifdef USE_EPOLL
+ EngineHandle = epoll_create(65535);
+#endif
+#ifdef USE_KQUEUE
+ EngineHandle = kqueue();
+#endif
+}
+
+SocketEngine::~SocketEngine()
+{
+#ifdef USE_EPOLL || USE_KQUEUE
+ close(EngineHandle);
+#endif
+}
+
+bool SocketEngine::AddFd(int fd, bool readable, char type)
+{
+ this->fds.push_back(fd);
+ if (readable)
+ ref[fd] |= X_READBIT;
+#ifdef USE_EPOLL
+ struct epoll_event ev;
+ log(DEBUG,"epoll: Adduser to events, ep=%d socket=%d",EngineHandle,fd);
+ readable ? ev.events = EPOLLIN | EPOLLET : ev.events = EPOLLOUT | EPOLLET;
+ ev.data.fd = fd;
+ int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
+ if (i < 0)
+ {
+ log(DEBUG,"epoll: List insertion failure!");
+ return false;
+ }
+#endif
+#ifdef USE_KQUEUE
+ struct kevent ke;
+ log(DEBUG,"kqueue: Add user to events, kq=%d socket=%d",EngineHandle,fd);
+ EV_SET(&ke, socket, readable ? EVFILT_READ : EVFILT_WRITE, EV_ADD, 0, 0, NULL);
+ int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
+ if (i == -1)
+ {
+ log(DEBUG,"kqueue: List insertion failure!");
+ return false;
+ }
+#endif
+return true;
+}
+
+bool SocketEngine::DelFd(int fd)
+{
+ std::vector<int>::iterator i = this->fds.find(fd);
+ if (i != this->fds.end())
+ this->fds.erase(i);
+#ifdef USE_KQUEUE
+ struct kevent ke;
+ EV_SET(&ke, fd, ref[fd] && X_READBIT ? EVFILT_READ : EVFILT_WRITE, EV_DELETE, 0, 0, NULL);
+ int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
+ if (i == -1)
+ {
+ log(DEBUG,"kqueue: Failed to remove user from queue!");
+ return false;
+ }
+#endif
+#ifdef USE_EPOLL
+ struct epoll_event ev;
+ ref[fd] && X_READBIT ? ev.events = EPOLLIN | EPOLLET : ev.events = EPOLLOUT | EPOLLET;
+ ev.data.fd = fd;
+ int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev);
+ if (i < 0)
+ {
+ log(DEBUG,"epoll: List deletion failure!");
+ return false;
+ }
+#endif
+ ref[fd] = 0;
+ return (i != this->fds.end());
+}
+
+bool SocketEngine::Wait(unsigned long millisecs, std::vector<int> &fdlist)
+{
+ fdlist.clear();
+#ifdef USE_SELECT
+ int highest_fd = 0;
+ timeval tval;
+ int sresult;
+ for (unsigned int a = 0; a < fds.size(); a++)
+ {
+ if (ref[fds[a]] && X_READBIT)
+ {
+ FD_SET (fds[a], &rfdset);
+ }
+ else
+ {
+ FD_SET (fds[a], &wfdset);
+ }
+
+ }
+ tval.tv_sec = 0;
+ tval.tv_usec = 1000L;
+ sresult = select(FD_SETSIZE, &rfdset, &wfdset, NULL, &tval);
+ if (sresult > 0)
+ {
+ for (unsigned int a = 0; a < fds.size(); a++)
+ {
+ if ((FD_ISSET (fds[a], &rfdset)) || (FD_ISSET (fds[a], &wfdset)))
+ fdlist.push_back(fds[a]);
+ }
+ }
+#endif
+#ifdef USE_KQUEUE
+ ts.tv_nsec = 1000L;
+ ts.tv_sec = 0;
+ int i = kevent(EngineHandle, NULL, 0, &ke_list, 65535, &ts);
+ for (int j = 0; j < i; j++)
+ fdlist.push_back(ke_list[j].ident);
+#endif
+#ifdef USE_EPOLL
+ int i = epoll_wait(EngineHandle, events, 65535, 1);
+ for (int j = 0; j < i; j++)
+ fdlist.push_back(event[0].data.fd);
+#endif
+ return true;
+}
+
+std::string SocketEngine::GetName()
+{
+#ifdef USE_SELECT
+ return "select";
+#endif
+#ifdef USE_KQUEUE
+ return "kqueue";
+#endif
+#ifdef USE_EPOLL
+ return "epoll";
+#endif
+ return "misconfigured";
+}