- begun some work on Msg Object serializiation

- created a kind of general base class

1 files changed, 97 insertions, 0 deletions

diff --git a/obj.c b/obj.c
new file mode 100644
index 00000000..a03ae345
--- /dev/null
+++ b/obj.c
@@ -0,0 +1,97 @@
+/* obj.c
+ *
+ * This file implements a generic object "class". All other classes can
+ * use the service of this base class here to include auto-destruction and
+ * other capabilities in a generic manner.
+ * 
+ * File begun on 2008-01-04 by RGerhards
+ *
+ * Copyright 2008 Rainer Gerhards and Adiscon GmbH.
+ *
+ * This file is part of rsyslog.
+ *
+ * Rsyslog is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Rsyslog 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Rsyslog.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * A copy of the GPL can be found in the file "COPYING" in this distribution.
+ */
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "rsyslog.h"
+#include "obj.h"
+
+/* static data */
+
+/* methods */
+
+/* This is a dummy method to be used when a standard method has not been
+ * implemented by an object. Having it allows us to simply call via the 
+ * jump table without any NULL pointer checks - which gains quite
+ * some performance. -- rgerhards, 2008-01-04
+ */
+static rsRetVal objInfoNotImplementedDummy(void __attribute__((unused)) *pThis)
+{
+	return RS_RET_NOT_IMPLEMENTED;
+}
+
+
+/* construct an object Info object. Each class shall do this on init. The
+ * resulting object shall be cached during the lifetime of the class and each
+ * object shall receive a reference. A constructor MUST be provided for all
+ * objects, thus it is in the parameter list.
+ * pszName must point to constant pool memory. It is never freed.
+ */
+rsRetVal objInfoConstruct(objInfo_t **ppThis, objID_t objID, uchar *pszName, rsRetVal (*pDestruct)(void *))
+{
+	DEFiRet;
+	int i;
+	objInfo_t *pThis;
+
+	assert(ppThis != NULL);
+	assert(pDestruct != NULL);
+
+	if((pThis = calloc(1, sizeof(objInfo_t))) == NULL)
+		ABORT_FINALIZE(RS_RET_OUT_OF_MEMORY);
+
+	pThis->pszName = pszName;
+	pThis->objID = objID;
+
+	for(i = 0 ; i < OBJ_NUM_METHODS ; ++i) {
+		pThis->objMethods[i] = objInfoNotImplementedDummy;
+	}
+
+	*ppThis = pThis;
+
+finalize_it:
+	return iRet;
+}
+
+
+/* set a method handler */
+rsRetVal objInfoSetMethod(objInfo_t *pThis, objMethod_t objMethod, rsRetVal (*pHandler)(void*))
+{
+	assert(pThis != NULL);
+	assert(objMethod > 0 && objMethod < OBJ_NUM_METHODS);
+
+	pThis->objMethods[objMethod] = pHandler;
+
+	return RS_RET_OK;
+}
+
+/*
+ * vi:set ai:
+ */