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Diffstat (limited to 'runtime/vmstk.h')
| -rw-r--r-- | runtime/vmstk.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/runtime/vmstk.h b/runtime/vmstk.h new file mode 100644 index 00000000..2d45ee4d --- /dev/null +++ b/runtime/vmstk.h @@ -0,0 +1,56 @@ +/* The vmstk object. + * + * Copyright 2008 Rainer Gerhards and Adiscon GmbH. + * + * This file is part of the rsyslog runtime library. + * + * The rsyslog runtime library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * The rsyslog runtime library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with the rsyslog runtime library. If not, see <http://www.gnu.org/licenses/>. + * + * A copy of the GPL can be found in the file "COPYING" in this distribution. + * A copy of the LGPL can be found in the file "COPYING.LESSER" 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); + 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 */ |