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+/**
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+ * \file
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+ *
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+ * \author Georg Hopp
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+ *
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+ * \copyright
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+ * Copyright © 2014 Georg Hopp
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <unistd.h>
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+#include <poll.h>
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+#include <sys/epoll.h>
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+
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+#include "trbase.h"
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+#include "trevent.h"
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+
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+#include "tr/comm_manager.h"
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+#include "tr/comm_manager_epoll.h"
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+#include "tr/interface/comm_manager.h"
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+#include "tr/comm_end_point.h"
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+#include "tr/connection.h"
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+#include "tr/connect_entry_point.h"
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+
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+#define MAXEVENTS 64
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+
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+struct epoll_event events[64];
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+
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+static
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+int
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+commManagerEpollCtor(void * _this, va_list * params)
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+{
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+ TR_CommManagerEpoll this = _this;
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+ TR_CommManager cmgr = _this;
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+
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+ TR_PARENTCALL(TR_CommManagerEpoll, _this, TR_Class, ctor, params);
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+ this->handle = epoll_create(cmgr->n_endpoints);
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+
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+ return 0;
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+}
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+
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+static
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+void
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+commManagerEpollDtor(void * _this)
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+{
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+ TR_CommManagerEpoll this = _this;
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+
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+ close(this->handle);
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+}
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+
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+static
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+void
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+TR_commManagerEpollAddEndpoint(void * _this, TR_CommEndPoint endpoint)
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+{
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+ TR_CommManagerEpoll this = _this;
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+ struct epoll_event event;
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+
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+ event.data.ptr = endpoint;
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+ event.events = EPOLLIN | EPOLLET;
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+
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+ epoll_ctl(this->handle, EPOLL_CTL_ADD, endpoint->transport->handle, &event);
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+}
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+
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+static
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+void
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+TR_commManagerEpollSelect(void * _this, TR_Event event, int timeout)
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+{
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+ TR_CommManagerEpoll this = _this;
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+ int i, nevents;
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+
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+ nevents = epoll_wait(this->handle, events, MAXEVENTS, timeout);
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+
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+ for (i=0; i<nevents; i++) {
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+ TR_CommEndPoint endpoint = (TR_CommEndPoint)events[i].data.ptr;
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+
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+ if ((events[i].events & POLLIN) == POLLIN) {
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+ TR_Event event;
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+
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+ if (TR_INSTANCE_OF(TR_TcpSocket, endpoint->transport)
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+ && ((TR_TcpSocket)endpoint->transport)->listen) {
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+ event = TR_eventSubjectEmit(
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+ (TR_EventSubject)endpoint,
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+ TR_CET_EVENT_ACC_READY,
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+ NULL);
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+ } else {
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+ event = TR_eventSubjectEmit(
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+ (TR_EventSubject)endpoint,
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+ TR_CEP_EVENT_READ_READY,
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+ NULL);
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+ }
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+
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+ TR_eventHandlerIssueEvent((TR_EventHandler)this, event);
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+ }
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+
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+ if ((events[i].events & POLLOUT) == POLLOUT) {
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+ TR_eventHandlerIssueEvent(
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+ (TR_EventHandler)this,
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+ TR_eventSubjectEmit(
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+ (TR_EventSubject)endpoint,
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+ TR_CEP_EVENT_WRITE_READY,
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+ NULL));
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+ }
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+ }
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+}
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+
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+static
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+void
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+TR_commManagerEpollEnableWrite(void * _this, TR_Event event)
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+{
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+ TR_CommManagerEpoll this = _this;
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+ TR_CommEndPoint endpoint = (TR_CommEndPoint)event->subject;
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+
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+ if (! TR_socketFinWr(endpoint->transport)) {
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+ struct epoll_event epevent;
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+
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+ epevent.data.ptr = endpoint;
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+ epevent.events = EPOLLOUT | EPOLLIN | EPOLLET;
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+
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+ epoll_ctl(
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+ this->handle,
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+ EPOLL_CTL_MOD,
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+ endpoint->transport->handle,
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+ &epevent);
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+ }
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+}
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+
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+static
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+void
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+TR_commManagerEpollDisableWrite(void * _this, TR_Event event)
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+{
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+ TR_CommManagerEpoll this = _this;
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+ TR_CommEndPoint endpoint = (TR_CommEndPoint)event->subject;
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+ struct epoll_event epevent;
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+
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+ epevent.data.ptr = endpoint;
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+ epevent.events = EPOLLIN | EPOLLET;
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+
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+ epoll_ctl(
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+ this->handle,
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+ EPOLL_CTL_MOD,
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+ endpoint->transport->handle,
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+ &epevent);
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+}
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+
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+static
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+void
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+TR_commManagerEpollClose(void * _this, TR_Event event)
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+{
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+ TR_CommManagerEpoll this = _this;
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+ TR_CommEndPoint endpoint = (TR_CommEndPoint)event->subject;
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+
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+ epoll_ctl(this->handle, EPOLL_CTL_DEL, endpoint->transport->handle, NULL);
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+}
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+
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+static
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+void
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+TR_commManagerEpollEnableRead(void * _this, TR_Event event)
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+{
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+}
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+
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+static
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+void
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+TR_commManagerEpollDisableRead(void * _this, TR_Event event)
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+{
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+}
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+
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+static
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+void
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+TR_commManagerEpollCvInit(TR_class_ptr cls) {
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+ TR_INHERIT_CLASSVARS(TR_CommManagerEpoll, TR_CommManager);
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+}
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+
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+TR_INIT_IFACE(TR_Class, commManagerEpollCtor, commManagerEpollDtor, NULL);
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+TR_INIT_IFACE(
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+ TR_CommManager,
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+ TR_commManagerEpollAddEndpoint,
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+ TR_commManagerEpollSelect,
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+ TR_commManagerEpollEnableWrite,
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+ TR_commManagerEpollDisableWrite,
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+ TR_commManagerEpollEnableRead,
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+ TR_commManagerEpollClose,
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+ TR_commManagerEpollDisableRead,
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+ TR_commManagerEpollDisableWrite);
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+TR_CREATE_CLASS(
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+ TR_CommManagerEpoll,
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+ TR_CommManager,
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+ TR_commManagerEpollCvInit,
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+ TR_IF(TR_Class),
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+ TR_IF(TR_CommManager));
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+
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+// vim: set ts=4 sw=4: |
