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Diffstat (limited to 'vmop.h')
| -rw-r--r-- | vmop.h | 89 |
1 files changed, 89 insertions, 0 deletions
@@ -0,0 +1,89 @@ +/* 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_CONTAINSI = ctok_CMP_CONTAINSI, + opcode_CMP_STARTSWITHI = ctok_CMP_STARTSWITHI, + 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 */ |