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/* 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 max size of the stack - TODO: make configurable */
#define VMSTK_SIZE 256
/* the vmstk object */
typedef 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 */
} 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);
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);
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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