added vmop class (stage for expression execution)

1 files changed, 97 insertions, 0 deletions

diff --git a/vmop.c b/vmop.c
new file mode 100644
index 00000000..460347bd
--- /dev/null
+++ b/vmop.c
@@ -0,0 +1,97 @@
+/* vmop.c - abstracts an operation (instructed) supported by the
+ * rsyslog virtual machine
+ *
+ * Module begun 2008-02-20 by Rainer Gerhards
+ *
+ * Copyright 2007, 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 <assert.h>
+
+#include "rsyslog.h"
+#include "obj.h"
+#include "vmop.h"
+
+/* static data */
+DEFobjStaticHelpers
+
+
+/* Standard-Constructor
+ */
+BEGINobjConstruct(vmop) /* be sure to specify the object type also in END macro! */
+ENDobjConstruct(vmop)
+
+
+/* ConstructionFinalizer
+ * rgerhards, 2008-01-09
+ */
+rsRetVal vmopConstructFinalize(vmop_t *pThis)
+{
+	DEFiRet;
+	ISOBJ_TYPE_assert(pThis, vmop);
+	RETiRet;
+}
+
+
+/* destructor for the vmop object */
+BEGINobjDestruct(vmop) /* be sure to specify the object type also in END and CODESTART macros! */
+CODESTARTobjDestruct(vmop)
+ENDobjDestruct(vmop)
+
+
+/* set operand (variant case)
+ * rgerhards, 2008-02-20
+ */
+rsRetVal
+vmopSetVar(vmop_t *pThis, var_t *pVar)
+{
+	DEFiRet;
+	ISOBJ_TYPE_assert(pThis, vmop);
+	ISOBJ_TYPE_assert(pVar, var);
+	pThis->operand.pVar = pVar;
+	RETiRet;
+}
+
+
+/* set operation
+ * rgerhards, 2008-02-20
+ */
+rsRetVal
+vmopSetOpcode(vmop_t *pThis, opcode_t opcode)
+{
+	DEFiRet;
+	ISOBJ_TYPE_assert(pThis, vmop);
+	pThis->opcode = opcode;
+	RETiRet;
+}
+
+
+/* Initialize the vmop class. Must be called as the very first method
+ * before anything else is called inside this class.
+ * rgerhards, 2008-02-19
+ */
+BEGINObjClassInit(vmop, 1) /* class, version */
+	OBJSetMethodHandler(objMethod_CONSTRUCTION_FINALIZER, vmopConstructFinalize);
+ENDObjClassInit(vmop)
+
+/* vi:set ai:
+ */