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/* The vmstk object.
*
* Copyright 2008-2012 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of the rsyslog runtime library.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* -or-
* see COPYING.ASL20 in the source distribution
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef INCLUDED_VMSTK_H
#define INCLUDED_VMSTK_H
/* The max size of the stack - TODO: make configurable */
#define VMSTK_SIZE 256
/* the vmstk object */
struct vmstk_s {
BEGINobjInstance; /* Data to implement generic object - MUST be the first data element! */
var_t *vStk[VMSTK_SIZE];/* the actual stack */
int iStkPtr; /* stack pointer, points to next free location, grows from 0 --> topend */
};
/* 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);
rsRetVal (*Push)(vmstk_t *pThis, var_t *pVar);
rsRetVal (*Pop)(vmstk_t *pThis, var_t **ppVar);
rsRetVal (*PopBool)(vmstk_t *pThis, var_t **ppVar);
rsRetVal (*PopNumber)(vmstk_t *pThis, var_t **ppVar);
rsRetVal (*PopString)(vmstk_t *pThis, var_t **ppVar);
rsRetVal (*Pop2CommOp)(vmstk_t *pThis, var_t **ppVar1, var_t **ppVar2);
ENDinterface(vmstk)
#define vmstkCURR_IF_VERSION 1 /* increment whenever you change the interface structure! */
/* prototypes */
PROTOTYPEObj(vmstk);
#endif /* #ifndef INCLUDED_VMSTK_H */
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