added empty vmstk class

3 files changed, 151 insertions, 0 deletions

diff --git a/Makefile.am b/Makefile.am
index 3770cc55..bbccb8a5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,8 @@ rfc3195d_SOURCES = rfc3195d.c rsyslog.h
 rsyslogd_SOURCES = \
 	syslogd.c \
 	syslogd.h \
+	vmstk.c \
+	vmstk.h \
 	vmprg.c \
 	vmprg.h \
 	vmop.c \
diff --git a/vmstk.c b/vmstk.c
new file mode 100644
index 00000000..61825976
--- /dev/null
+++ b/vmstk.c
@@ -0,0 +1,105 @@
+/* vmstk.c - the arithmetic stack of a virtual machine.
+ *
+ * Module begun 2008-02-21 by Rainer Gerhards
+ *
+ * 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 <assert.h>
+
+#include "rsyslog.h"
+#include "obj.h"
+#include "vmstk.h"
+
+/* static data */
+DEFobjStaticHelpers
+
+
+/* Standard-Constructor
+ */
+BEGINobjConstruct(vmstk) /* be sure to specify the object type also in END macro! */
+ENDobjConstruct(vmstk)
+
+
+/* ConstructionFinalizer
+ * rgerhards, 2008-01-09
+ */
+static rsRetVal
+vmstkConstructFinalize(vmstk_t __attribute__((unused)) *pThis)
+{
+	DEFiRet;
+	ISOBJ_TYPE_assert(pThis, vmstk);
+	RETiRet;
+}
+
+
+/* destructor for the vmstk object */
+BEGINobjDestruct(vmstk) /* be sure to specify the object type also in END and CODESTART macros! */
+CODESTARTobjDestruct(vmstk)
+ENDobjDestruct(vmstk)
+
+
+/* debugprint for the vmstk object */
+BEGINobjDebugPrint(vmstk) /* be sure to specify the object type also in END and CODESTART macros! */
+CODESTARTobjDebugPrint(vmstk)
+	dbgoprint((obj_t*) pThis, "stack contents:\n");
+ENDobjDebugPrint(vmstk)
+
+
+/* queryInterface function
+ * rgerhards, 2008-02-21
+ */
+BEGINobjQueryInterface(vmstk)
+CODESTARTobjQueryInterface(vmstk)
+	if(pIf->ifVersion != vmstkCURR_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->oID = OBJvmstk;
+
+	pIf->Construct = vmstkConstruct;
+	pIf->ConstructFinalize = vmstkConstructFinalize;
+	pIf->Destruct = vmstkDestruct;
+	pIf->DebugPrint = vmstkDebugPrint;
+finalize_it:
+ENDobjQueryInterface(vmstk)
+
+
+/* Initialize the vmstk class. Must be called as the very first method
+ * before anything else is called inside this class.
+ * rgerhards, 2008-02-19
+ */
+BEGINObjClassInit(vmstk, 1) /* class, version */
+	/* request objects we use */
+
+	/* set our own handlers */
+	OBJSetMethodHandler(objMethod_DEBUGPRINT, vmstkDebugPrint);
+	OBJSetMethodHandler(objMethod_CONSTRUCTION_FINALIZER, vmstkConstructFinalize);
+ENDObjClassInit(vmstk)
+
+/* vi:set ai:
+ */
diff --git a/vmstk.h b/vmstk.h
new file mode 100644
index 00000000..f9f58528
--- /dev/null
+++ b/vmstk.h
@@ -0,0 +1,44 @@
+/* The vmstk object.
+ *
+ * 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.
+ */
+#ifndef INCLUDED_VMSTK_H
+#define INCLUDED_VMSTK_H
+
+/* the vmstk object */
+typedef struct vmstk_s {
+	BEGINobjInstance;	/* Data to implement generic object - MUST be the first data element! */
+} vmstk_t;
+
+
+/* interfaces */
+BEGINinterface(vmstk) /* name must also be changed in ENDinterface macro! */
+	INTERFACEObjDebugPrint(vmstk);
+	rsRetVal (*Construct)(vmstk_t **ppThis);
+	rsRetVal (*ConstructFinalize)(vmstk_t __attribute__((unused)) *pThis);
+	rsRetVal (*Destruct)(vmstk_t **ppThis);
+ENDinterface(vmstk)
+#define vmstkCURR_IF_VERSION 1 /* increment whenever you change the interface structure! */
+
+
+/* prototypes */
+PROTOTYPEObj(vmstk);
+
+#endif /* #ifndef INCLUDED_VMSTK_H */