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f4b26f77ab
this also is the first sign of something that will evolve into a well-defined "rsyslog runtime library"
57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
/* The vmstk object.
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*
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* Copyright 2008 Rainer Gerhards and Adiscon GmbH.
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*
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* This file is part of the rsyslog runtime library.
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*
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* The rsyslog runtime library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* The rsyslog runtime library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with the rsyslog runtime library. If not, see <http://www.gnu.org/licenses/>.
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*
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* A copy of the GPL can be found in the file "COPYING" in this distribution.
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* A copy of the LGPL can be found in the file "COPYING.LESSER" in this distribution.
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*/
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#ifndef INCLUDED_VMSTK_H
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#define INCLUDED_VMSTK_H
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/* The max size of the stack - TODO: make configurable */
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#define VMSTK_SIZE 256
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/* the vmstk object */
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typedef struct vmstk_s {
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BEGINobjInstance; /* Data to implement generic object - MUST be the first data element! */
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var_t *vStk[VMSTK_SIZE];/* the actual stack */
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int iStkPtr; /* stack pointer, points to next free location, grows from 0 --> topend */
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} vmstk_t;
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/* interfaces */
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BEGINinterface(vmstk) /* name must also be changed in ENDinterface macro! */
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INTERFACEObjDebugPrint(vmstk);
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rsRetVal (*Construct)(vmstk_t **ppThis);
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rsRetVal (*ConstructFinalize)(vmstk_t __attribute__((unused)) *pThis);
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rsRetVal (*Destruct)(vmstk_t **ppThis);
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rsRetVal (*Push)(vmstk_t *pThis, var_t *pVar);
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rsRetVal (*Pop)(vmstk_t *pThis, var_t **ppVar);
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rsRetVal (*PopBool)(vmstk_t *pThis, var_t **ppVar);
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rsRetVal (*PopNumber)(vmstk_t *pThis, var_t **ppVar);
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rsRetVal (*PopString)(vmstk_t *pThis, var_t **ppVar);
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rsRetVal (*Pop2CommOp)(vmstk_t *pThis, var_t **ppVar1, var_t **ppVar2);
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ENDinterface(vmstk)
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#define vmstkCURR_IF_VERSION 1 /* increment whenever you change the interface structure! */
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/* prototypes */
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PROTOTYPEObj(vmstk);
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#endif /* #ifndef INCLUDED_VMSTK_H */
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