added skeleton for supporting epoll() API in netstream subsystem

1 files changed, 120 insertions, 0 deletions

diff --git a/runtime/nsdpoll_ptcp.c b/runtime/nsdpoll_ptcp.c
new file mode 100644
index 00000000..b6b7af77
--- /dev/null
+++ b/runtime/nsdpoll_ptcp.c
@@ -0,0 +1,120 @@
+/* nsdpoll_ptcp.c
+ *
+ * An implementation of the nsd epoll() interface for plain tcp sockets.
+ * 
+ * Copyright 2009 Rainer Gerhards and Adiscon GmbH.
+ *
+ * This file is part of the rsyslog runtime library.
+ *
+ * The rsyslog runtime library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The rsyslog runtime library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the rsyslog runtime library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * A copy of the GPL can be found in the file "COPYING" in this distribution.
+ * A copy of the LGPL can be found in the file "COPYING.LESSER" in this distribution.
+ */
+#include "config.h"
+
+#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include "rsyslog.h"
+#include "module-template.h"
+#include "obj.h"
+#include "errmsg.h"
+#include "nsd_ptcp.h"
+#include "nsdpoll_ptcp.h"
+#include "unlimited_select.h"
+
+/* static data */
+DEFobjStaticHelpers
+DEFobjCurrIf(errmsg)
+DEFobjCurrIf(glbl)
+
+
+/* Standard-Constructor
+ */
+BEGINobjConstruct(nsdpoll_ptcp) /* be sure to specify the object type also in END macro! */
+ENDobjConstruct(nsdpoll_ptcp)
+
+
+/* destructor for the nsdpoll_ptcp object */
+BEGINobjDestruct(nsdpoll_ptcp) /* be sure to specify the object type also in END and CODESTART macros! */
+CODESTARTobjDestruct(nsdpoll_ptcp)
+ENDobjDestruct(nsdpoll_ptcp)
+
+
+/* Add a socket to the select set */
+static rsRetVal
+Ctl(nsdpoll_t *pThis, int fd, int op, epoll_event_t *event) {
+	DEFiRet;
+	RETiRet;
+}
+
+
+/* Wait for io to become ready.
+ */
+static rsRetVal
+Wait(nsdpoll_t *pThis, epoll_event_t *events, int maxevents, int timeout) {
+	DEFiRet;
+	RETiRet;
+}
+
+
+/* ------------------------------ end support for the epoll() interface ------------------------------ */
+
+
+/* queryInterface function */
+BEGINobjQueryInterface(nsdpoll_ptcp)
+CODESTARTobjQueryInterface(nsdpoll_ptcp)
+	if(pIf->ifVersion != nsdCURR_IF_VERSION) {/* check for current version, increment on each change */
+		ABORT_FINALIZE(RS_RET_INTERFACE_NOT_SUPPORTED);
+	}
+
+	/* ok, we have the right interface, so let's fill it
+	 * Please note that we may also do some backwards-compatibility
+	 * work here (if we can support an older interface version - that,
+	 * of course, also affects the "if" above).
+	 */
+	pIf->Construct = (rsRetVal(*)(nsdpoll_t**)) nsdpoll_ptcpConstruct;
+	pIf->Destruct = (rsRetVal(*)(nsdpoll_t**)) nsdpoll_ptcpDestruct;
+	pIf->Ctl = Ctl;
+	pIf->Wait = Wait;
+finalize_it:
+ENDobjQueryInterface(nsdpoll_ptcp)
+
+
+/* exit our class
+ */
+BEGINObjClassExit(nsdpoll_ptcp, OBJ_IS_CORE_MODULE) /* CHANGE class also in END MACRO! */
+CODESTARTObjClassExit(nsdpoll_ptcp)
+	/* release objects we no longer need */
+	objRelease(glbl, CORE_COMPONENT);
+	objRelease(errmsg, CORE_COMPONENT);
+ENDObjClassExit(nsdpoll_ptcp)
+
+
+/* Initialize the nsdpoll_ptcp class. Must be called as the very first method
+ * before anything else is called inside this class.
+ * rgerhards, 2008-02-19
+ */
+BEGINObjClassInit(nsdpoll_ptcp, 1, OBJ_IS_CORE_MODULE) /* class, version */
+	/* request objects we use */
+	CHKiRet(objUse(errmsg, CORE_COMPONENT));
+	CHKiRet(objUse(glbl, CORE_COMPONENT));
+
+	/* set our own handlers */
+ENDObjClassInit(nsdpoll_ptcp)
+/* vi:set ai:
+ */