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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_kqueue.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_kqueue.cpp')
-rw-r--r--src/socketengine_kqueue.cpp159
1 files changed, 158 insertions, 1 deletions
diff --git a/src/socketengine_kqueue.cpp b/src/socketengine_kqueue.cpp
index de9a78f4e..7fcdae2b6 100644
--- a/src/socketengine_kqueue.cpp
+++ b/src/socketengine_kqueue.cpp
@@ -1 +1,158 @@
-/* +------------------------------------+ * | 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/types.h> #include <sys/event.h> #include <sys/time.h> #include "socketengine_kqueue.h" KQueueEngine::KQueueEngine(InspIRCd* Instance) : SocketEngine(Instance) { EngineHandle = kqueue(); if (EngineHandle == -1) { 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."); InspIRCd::Exit(EXIT_STATUS_SOCKETENGINE); } CurrentSetSize = 0; } KQueueEngine::~KQueueEngine() { close(EngineHandle); } bool KQueueEngine::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 kevent ke; EV_SET(&ke, fd, eh->Readable() ? EVFILT_READ : EVFILT_WRITE, EV_ADD, 0, 0, NULL); int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL); if (i == -1) return false; CurrentSetSize++; ServerInstance->Log(DEBUG,"New file descriptor: %d", fd); return true; } bool KQueueEngine::DelFd(EventHandler* eh, bool force) { int fd = eh->GetFd(); if ((fd < 0) || (fd > MAX_DESCRIPTORS)) return false; struct kevent ke; EV_SET(&ke, eh->GetFd(), EVFILT_READ, EV_DELETE, 0, 0, NULL); int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL); EV_SET(&ke, eh->GetFd(), EVFILT_WRITE, EV_DELETE, 0, 0, NULL); int j = kevent(EngineHandle, &ke, 1, 0, 0, NULL); if ((j < 0) && (i < 0) && !force) return false; CurrentSetSize--; ref[fd] = NULL; ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd); return true; } void KQueueEngine::WantWrite(EventHandler* eh) { /** When changing an item in a kqueue, there is no 'modify' call * as in epoll. Instead, we add the item again, and this overwrites * the original setting rather than adding it twice. See man kqueue. */ struct kevent ke; EV_SET(&ke, eh->GetFd(), EVFILT_WRITE, EV_ADD | EV_ONESHOT, 0, 0, NULL); kevent(EngineHandle, &ke, 1, 0, 0, NULL); } int KQueueEngine::GetMaxFds() { return MAX_DESCRIPTORS; } int KQueueEngine::GetRemainingFds() { return MAX_DESCRIPTORS - CurrentSetSize; } int KQueueEngine::DispatchEvents() { ts.tv_nsec = 0; ts.tv_sec = 1; int i = kevent(EngineHandle, NULL, 0, &ke_list[0], MAX_DESCRIPTORS, &ts); for (int j = 0; j < i; j++) { if (ke_list[j].flags & EV_EOF) { /* We love you kqueue, oh yes we do *sings*! * kqueue gives us the error number directly in the EOF state! * Unlike smelly epoll and select, where we have to getsockopt * to get the error, this saves us time and cpu cycles. Go BSD! */ if (ref[ke_list[j].ident]) ref[ke_list[j].ident]->HandleEvent(EVENT_ERROR, ke_list[j].fflags); continue; } if (ke_list[j].flags & EVFILT_WRITE) { /* This looks wrong but its right. As above, theres no modify * call in kqueue. See the manpage. */ struct kevent ke; EV_SET(&ke, ke_list[j].ident, EVFILT_READ, EV_ADD, 0, 0, NULL); kevent(EngineHandle, &ke, 1, 0, 0, NULL); if (ref[ke_list[j].ident]) ref[ke_list[j].ident]->HandleEvent(EVENT_WRITE); } else { if (ref[ke_list[j].ident]) ref[ke_list[j].ident]->HandleEvent(EVENT_READ); } } return i; } std::string KQueueEngine::GetName() { return "kqueue"; } \ 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/types.h>
+#include <sys/event.h>
+#include <sys/time.h>
+#include "socketengine_kqueue.h"
+
+
+KQueueEngine::KQueueEngine(InspIRCd* Instance) : SocketEngine(Instance)
+{
+ EngineHandle = kqueue();
+ if (EngineHandle == -1)
+ {
+ 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.");
+ InspIRCd::Exit(EXIT_STATUS_SOCKETENGINE);
+ }
+ CurrentSetSize = 0;
+}
+
+KQueueEngine::~KQueueEngine()
+{
+ close(EngineHandle);
+}
+
+bool KQueueEngine::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 kevent ke;
+ EV_SET(&ke, fd, eh->Readable() ? EVFILT_READ : EVFILT_WRITE, EV_ADD, 0, 0, NULL);
+
+ int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
+ if (i == -1)
+ return false;
+
+ CurrentSetSize++;
+
+ ServerInstance->Log(DEBUG,"New file descriptor: %d", fd);
+ return true;
+}
+
+bool KQueueEngine::DelFd(EventHandler* eh, bool force)
+{
+ int fd = eh->GetFd();
+
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return false;
+
+ struct kevent ke;
+ EV_SET(&ke, eh->GetFd(), EVFILT_READ, EV_DELETE, 0, 0, NULL);
+
+ int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
+
+ EV_SET(&ke, eh->GetFd(), EVFILT_WRITE, EV_DELETE, 0, 0, NULL);
+
+ int j = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
+
+ if ((j < 0) && (i < 0) && !force)
+ return false;
+
+ CurrentSetSize--;
+ ref[fd] = NULL;
+
+ ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd);
+ return true;
+}
+
+void KQueueEngine::WantWrite(EventHandler* eh)
+{
+ /** When changing an item in a kqueue, there is no 'modify' call
+ * as in epoll. Instead, we add the item again, and this overwrites
+ * the original setting rather than adding it twice. See man kqueue.
+ */
+ struct kevent ke;
+ EV_SET(&ke, eh->GetFd(), EVFILT_WRITE, EV_ADD | EV_ONESHOT, 0, 0, NULL);
+ kevent(EngineHandle, &ke, 1, 0, 0, NULL);
+}
+
+int KQueueEngine::GetMaxFds()
+{
+ return MAX_DESCRIPTORS;
+}
+
+int KQueueEngine::GetRemainingFds()
+{
+ return MAX_DESCRIPTORS - CurrentSetSize;
+}
+
+int KQueueEngine::DispatchEvents()
+{
+ ts.tv_nsec = 0;
+ ts.tv_sec = 1;
+ int i = kevent(EngineHandle, NULL, 0, &ke_list[0], MAX_DESCRIPTORS, &ts);
+ for (int j = 0; j < i; j++)
+ {
+ if (ke_list[j].flags & EV_EOF)
+ {
+ /* We love you kqueue, oh yes we do *sings*!
+ * kqueue gives us the error number directly in the EOF state!
+ * Unlike smelly epoll and select, where we have to getsockopt
+ * to get the error, this saves us time and cpu cycles. Go BSD!
+ */
+ if (ref[ke_list[j].ident])
+ ref[ke_list[j].ident]->HandleEvent(EVENT_ERROR, ke_list[j].fflags);
+ continue;
+ }
+ if (ke_list[j].flags & EVFILT_WRITE)
+ {
+ /* This looks wrong but its right. As above, theres no modify
+ * call in kqueue. See the manpage.
+ */
+ struct kevent ke;
+ EV_SET(&ke, ke_list[j].ident, EVFILT_READ, EV_ADD, 0, 0, NULL);
+ kevent(EngineHandle, &ke, 1, 0, 0, NULL);
+ if (ref[ke_list[j].ident])
+ ref[ke_list[j].ident]->HandleEvent(EVENT_WRITE);
+ }
+ else
+ {
+ if (ref[ke_list[j].ident])
+ ref[ke_list[j].ident]->HandleEvent(EVENT_READ);
+ }
+ }
+
+ return i;
+}
+
+std::string KQueueEngine::GetName()
+{
+ return "kqueue";
+}