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/* The vmop 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_VMOP_H
#define INCLUDED_VMOP_H
#include "ctok_token.h"
/* machine instructions types */
typedef enum { /* do NOT start at 0 to detect uninitialized types after calloc() */
opcode_INVALID = 0,
/* for simplicity of debugging and reading dumps, we use the same IDs
* that the tokenizer uses where this applicable.
*/
opcode_OR = ctok_OR,
opcode_AND = ctok_AND,
opcode_STRADD= ctok_STRADD,
opcode_PLUS = ctok_PLUS,
opcode_MINUS = ctok_MINUS,
opcode_TIMES = ctok_TIMES, /* "*" */
opcode_DIV = ctok_DIV,
opcode_MOD = ctok_MOD,
opcode_NOT = ctok_NOT,
opcode_CMP_EQ = ctok_CMP_EQ, /* all compare operations must be in a row */
opcode_CMP_NEQ = ctok_CMP_NEQ,
opcode_CMP_LT = ctok_CMP_LT,
opcode_CMP_GT = ctok_CMP_GT,
opcode_CMP_LTEQ = ctok_CMP_LTEQ,
opcode_CMP_CONTAINS = ctok_CMP_CONTAINS,
opcode_CMP_STARTSWITH = ctok_CMP_STARTSWITH,
opcode_CMP_GTEQ = ctok_CMP_GTEQ, /* end compare operations */
/* here we start our own codes */
opcode_POP = 1000, /* requires var operand to receive result */
opcode_PUSHSYSVAR = 1001, /* requires var operand */
opcode_PUSHMSGVAR = 1002, /* requires var operand */
opcode_PUSHCONSTANT = 1003, /* requires var operand */
opcode_UNARY_MINUS = 1010,
opcode_END_PROG = 1011
} opcode_t;
/* the vmop object */
typedef struct vmop_s {
BEGINobjInstance; /* Data to implement generic object - MUST be the first data element! */
opcode_t opcode;
union {
var_t *pVar;
/* TODO: add function pointer */
} operand;
struct vmop_s *pNext; /* next operation or NULL, if end of program (logically this belongs to vmprg) */
} vmop_t;
/* interfaces */
BEGINinterface(vmop) /* name must also be changed in ENDinterface macro! */
INTERFACEObjDebugPrint(vmop);
rsRetVal (*Construct)(vmop_t **ppThis);
rsRetVal (*ConstructFinalize)(vmop_t __attribute__((unused)) *pThis);
rsRetVal (*Destruct)(vmop_t **ppThis);
rsRetVal (*SetOpcode)(vmop_t *pThis, opcode_t opcode);
rsRetVal (*SetVar)(vmop_t *pThis, var_t *pVar);
rsRetVal (*Opcode2Str)(vmop_t *pThis, uchar **ppName);
ENDinterface(vmop)
#define vmopCURR_IF_VERSION 1 /* increment whenever you change the interface structure! */
/* the remaining prototypes */
PROTOTYPEObj(vmop);
#endif /* #ifndef INCLUDED_VMOP_H */
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