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authorpeavey <peavey@e03df62e-2008-0410-955e-edbf42e46eb7>2007-07-16 17:30:04 +0000
committerpeavey <peavey@e03df62e-2008-0410-955e-edbf42e46eb7>2007-07-16 17:30:04 +0000
commitf2acdbc3820f0f4f5ef76a0a64e73d2a320df91f (patch)
tree0602469ef10e4dab4b3975599eb4f919a501c1eb /src/socketengine_epoll.cpp
parent387f54199e9f335c58af888bdad5ddc1f5cf9bec (diff)
OOPS! We try again, since I'm smoking craq. LF is 0x0a NOT CR.
git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@7456 e03df62e-2008-0410-955e-edbf42e46eb7
Diffstat (limited to 'src/socketengine_epoll.cpp')
-rw-r--r--src/socketengine_epoll.cpp158
1 files changed, 157 insertions, 1 deletions
diff --git a/src/socketengine_epoll.cpp b/src/socketengine_epoll.cpp
index 7a7f46d1b..4ed68ca57 100644
--- a/src/socketengine_epoll.cpp
+++ b/src/socketengine_epoll.cpp
@@ -1 +1,157 @@
-/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #include "inspircd.h" #include "exitcodes.h" #include <sys/epoll.h> #include "socketengine_epoll.h" EPollEngine::EPollEngine(InspIRCd* Instance) : SocketEngine(Instance) { EngineHandle = epoll_create(MAX_DESCRIPTORS); if (EngineHandle == -1) { ServerInstance->Log(SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno)); ServerInstance->Log(SPARSE,"ERROR: Your kernel probably does not have the proper features. This is a fatal error, exiting now."); printf("ERROR: Could not initialize socket engine: %s\n", strerror(errno)); printf("ERROR: Your kernel probably does not have the proper features. This is a fatal error, exiting now.\n"); InspIRCd::Exit(EXIT_STATUS_SOCKETENGINE); } CurrentSetSize = 0; } EPollEngine::~EPollEngine() { close(EngineHandle); } bool EPollEngine::AddFd(EventHandler* eh) { int fd = eh->GetFd(); if ((fd < 0) || (fd > MAX_DESCRIPTORS)) return false; if (GetRemainingFds() <= 1) return false; if (ref[fd]) return false; ref[fd] = eh; struct epoll_event ev; memset(&ev,0,sizeof(struct epoll_event)); eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT; ev.data.fd = fd; int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev); if (i < 0) { return false; } ServerInstance->Log(DEBUG,"New file descriptor: %d", fd); CurrentSetSize++; return true; } void EPollEngine::WantWrite(EventHandler* eh) { /** Use oneshot so that the system removes the writeable * status for us and saves us a call. */ struct epoll_event ev; memset(&ev,0,sizeof(struct epoll_event)); ev.events = EPOLLOUT; ev.data.fd = eh->GetFd(); epoll_ctl(EngineHandle, EPOLL_CTL_MOD, eh->GetFd(), &ev); } bool EPollEngine::DelFd(EventHandler* eh, bool force) { int fd = eh->GetFd(); if ((fd < 0) || (fd > MAX_DESCRIPTORS)) return false; struct epoll_event ev; memset(&ev,0,sizeof(struct epoll_event)); eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT; ev.data.fd = fd; int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev); if (i < 0 && !force) return false; CurrentSetSize--; ref[fd] = NULL; ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd); return true; } int EPollEngine::GetMaxFds() { return MAX_DESCRIPTORS; } int EPollEngine::GetRemainingFds() { return MAX_DESCRIPTORS - CurrentSetSize; } int EPollEngine::DispatchEvents() { socklen_t codesize; int errcode; int i = epoll_wait(EngineHandle, events, MAX_DESCRIPTORS, 1000); for (int j = 0; j < i; j++) { if (events[j].events & EPOLLHUP) { if (ref[events[j].data.fd]) ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, 0); continue; } if (events[j].events & EPOLLERR) { /* Get error number */ if (getsockopt(events[j].data.fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0) errcode = errno; if (ref[events[j].data.fd]) ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, errcode); continue; } if (events[j].events & EPOLLOUT) { struct epoll_event ev; memset(&ev,0,sizeof(struct epoll_event)); ev.events = EPOLLIN; ev.data.fd = events[j].data.fd; epoll_ctl(EngineHandle, EPOLL_CTL_MOD, events[j].data.fd, &ev); if (ref[events[j].data.fd]) ref[events[j].data.fd]->HandleEvent(EVENT_WRITE); } else { if (ref[events[j].data.fd]) ref[events[j].data.fd]->HandleEvent(EVENT_READ); } } return i; } std::string EPollEngine::GetName() { return "epoll"; } \ No newline at end of file
+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "exitcodes.h"
+#include <sys/epoll.h>
+#include "socketengine_epoll.h"
+
+EPollEngine::EPollEngine(InspIRCd* Instance) : SocketEngine(Instance)
+{
+ EngineHandle = epoll_create(MAX_DESCRIPTORS);
+
+ if (EngineHandle == -1)
+ {
+ ServerInstance->Log(SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno));
+ ServerInstance->Log(SPARSE,"ERROR: Your kernel probably does not have the proper features. This is a fatal error, exiting now.");
+ printf("ERROR: Could not initialize socket engine: %s\n", strerror(errno));
+ printf("ERROR: Your kernel probably does not have the proper features. This is a fatal error, exiting now.\n");
+ InspIRCd::Exit(EXIT_STATUS_SOCKETENGINE);
+ }
+ CurrentSetSize = 0;
+}
+
+EPollEngine::~EPollEngine()
+{
+ close(EngineHandle);
+}
+
+bool EPollEngine::AddFd(EventHandler* eh)
+{
+ int fd = eh->GetFd();
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return false;
+
+ if (GetRemainingFds() <= 1)
+ return false;
+
+ if (ref[fd])
+ return false;
+
+ ref[fd] = eh;
+ struct epoll_event ev;
+ memset(&ev,0,sizeof(struct epoll_event));
+ eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
+ ev.data.fd = fd;
+ int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
+ if (i < 0)
+ {
+ return false;
+ }
+
+ ServerInstance->Log(DEBUG,"New file descriptor: %d", fd);
+ CurrentSetSize++;
+ return true;
+}
+
+void EPollEngine::WantWrite(EventHandler* eh)
+{
+ /** Use oneshot so that the system removes the writeable
+ * status for us and saves us a call.
+ */
+ struct epoll_event ev;
+ memset(&ev,0,sizeof(struct epoll_event));
+ ev.events = EPOLLOUT;
+ ev.data.fd = eh->GetFd();
+ epoll_ctl(EngineHandle, EPOLL_CTL_MOD, eh->GetFd(), &ev);
+}
+
+bool EPollEngine::DelFd(EventHandler* eh, bool force)
+{
+ int fd = eh->GetFd();
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return false;
+
+ struct epoll_event ev;
+ memset(&ev,0,sizeof(struct epoll_event));
+ eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
+ ev.data.fd = fd;
+ int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev);
+
+ if (i < 0 && !force)
+ return false;
+
+ CurrentSetSize--;
+ ref[fd] = NULL;
+
+ ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd);
+ return true;
+}
+
+int EPollEngine::GetMaxFds()
+{
+ return MAX_DESCRIPTORS;
+}
+
+int EPollEngine::GetRemainingFds()
+{
+ return MAX_DESCRIPTORS - CurrentSetSize;
+}
+
+int EPollEngine::DispatchEvents()
+{
+ socklen_t codesize;
+ int errcode;
+ int i = epoll_wait(EngineHandle, events, MAX_DESCRIPTORS, 1000);
+ for (int j = 0; j < i; j++)
+ {
+ if (events[j].events & EPOLLHUP)
+ {
+ if (ref[events[j].data.fd])
+ ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, 0);
+ continue;
+ }
+ if (events[j].events & EPOLLERR)
+ {
+ /* Get error number */
+ if (getsockopt(events[j].data.fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
+ errcode = errno;
+ if (ref[events[j].data.fd])
+ ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, errcode);
+ continue;
+ }
+ if (events[j].events & EPOLLOUT)
+ {
+ struct epoll_event ev;
+ memset(&ev,0,sizeof(struct epoll_event));
+ ev.events = EPOLLIN;
+ ev.data.fd = events[j].data.fd;
+ epoll_ctl(EngineHandle, EPOLL_CTL_MOD, events[j].data.fd, &ev);
+ if (ref[events[j].data.fd])
+ ref[events[j].data.fd]->HandleEvent(EVENT_WRITE);
+ }
+ else
+ {
+ if (ref[events[j].data.fd])
+ ref[events[j].data.fd]->HandleEvent(EVENT_READ);
+ }
+ }
+
+ return i;
+}
+
+std::string EPollEngine::GetName()
+{
+ return "epoll";
+}
+