-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "inspircd.h"\r#include "exitcodes.h"\r#include <sys/types.h>\r#include <sys/event.h>\r#include <sys/time.h>\r#include "socketengine_kqueue.h"\r\r\rKQueueEngine::KQueueEngine(InspIRCd* Instance) : SocketEngine(Instance)\r{\r EngineHandle = kqueue();\r if (EngineHandle == -1)\r {\r ServerInstance->Log(SPARSE,"ERROR: Could not initialize socket engine. Your kernel probably does not have the proper features.");\r ServerInstance->Log(SPARSE,"ERROR: this is a fatal error, exiting now.");\r printf("ERROR: Could not initialize socket engine. Your kernel probably does not have the proper features.");\r printf("ERROR: this is a fatal error, exiting now.");\r InspIRCd::Exit(EXIT_STATUS_SOCKETENGINE);\r }\r CurrentSetSize = 0;\r}\r\rKQueueEngine::~KQueueEngine()\r{\r close(EngineHandle);\r}\r\rbool KQueueEngine::AddFd(EventHandler* eh)\r{\r int fd = eh->GetFd();\r\r if ((fd < 0) || (fd > MAX_DESCRIPTORS))\r return false;\r\r if (GetRemainingFds() <= 1)\r return false;\r\r if (ref[fd])\r return false;\r\r ref[fd] = eh;\r\r struct kevent ke;\r EV_SET(&ke, fd, eh->Readable() ? EVFILT_READ : EVFILT_WRITE, EV_ADD, 0, 0, NULL);\r\r int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);\r if (i == -1)\r return false;\r\r CurrentSetSize++;\r\r ServerInstance->Log(DEBUG,"New file descriptor: %d", fd);\r return true;\r}\r\rbool KQueueEngine::DelFd(EventHandler* eh, bool force)\r{\r int fd = eh->GetFd();\r\r if ((fd < 0) || (fd > MAX_DESCRIPTORS))\r return false;\r\r struct kevent ke;\r EV_SET(&ke, eh->GetFd(), EVFILT_READ, EV_DELETE, 0, 0, NULL);\r\r int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);\r\r EV_SET(&ke, eh->GetFd(), EVFILT_WRITE, EV_DELETE, 0, 0, NULL);\r\r int j = kevent(EngineHandle, &ke, 1, 0, 0, NULL);\r\r if ((j < 0) && (i < 0) && !force)\r return false;\r\r CurrentSetSize--;\r ref[fd] = NULL;\r\r ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd);\r return true;\r}\r\rvoid KQueueEngine::WantWrite(EventHandler* eh)\r{\r /** When changing an item in a kqueue, there is no 'modify' call\r * as in epoll. Instead, we add the item again, and this overwrites\r * the original setting rather than adding it twice. See man kqueue.\r */\r struct kevent ke;\r EV_SET(&ke, eh->GetFd(), EVFILT_WRITE, EV_ADD | EV_ONESHOT, 0, 0, NULL);\r kevent(EngineHandle, &ke, 1, 0, 0, NULL);\r}\r\rint KQueueEngine::GetMaxFds()\r{\r return MAX_DESCRIPTORS;\r}\r\rint KQueueEngine::GetRemainingFds()\r{\r return MAX_DESCRIPTORS - CurrentSetSize;\r}\r\rint KQueueEngine::DispatchEvents()\r{\r ts.tv_nsec = 0;\r ts.tv_sec = 1;\r int i = kevent(EngineHandle, NULL, 0, &ke_list[0], MAX_DESCRIPTORS, &ts);\r for (int j = 0; j < i; j++)\r {\r if (ke_list[j].flags & EV_EOF)\r {\r /* We love you kqueue, oh yes we do *sings*!\r * kqueue gives us the error number directly in the EOF state!\r * Unlike smelly epoll and select, where we have to getsockopt\r * to get the error, this saves us time and cpu cycles. Go BSD!\r */\r if (ref[ke_list[j].ident])\r ref[ke_list[j].ident]->HandleEvent(EVENT_ERROR, ke_list[j].fflags);\r continue;\r }\r if (ke_list[j].flags & EVFILT_WRITE)\r {\r /* This looks wrong but its right. As above, theres no modify\r * call in kqueue. See the manpage.\r */\r struct kevent ke;\r EV_SET(&ke, ke_list[j].ident, EVFILT_READ, EV_ADD, 0, 0, NULL);\r kevent(EngineHandle, &ke, 1, 0, 0, NULL);\r if (ref[ke_list[j].ident])\r ref[ke_list[j].ident]->HandleEvent(EVENT_WRITE);\r }\r else\r {\r if (ref[ke_list[j].ident])\r ref[ke_list[j].ident]->HandleEvent(EVENT_READ);\r }\r }\r\r return i;\r}\r\rstd::string KQueueEngine::GetName()\r{\r return "kqueue";\r}\r
\ 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";
+}
projects / user / henk / code / inspircd.git / blobdiff