1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/* var.c - a typeless variable class
*
* This class is used to represent variable values, which may have any type.
* Among others, it will be used inside rsyslog's expression system, but
* also internally at any place where a typeless variable is needed.
*
* Module begun 2008-02-20 by Rainer Gerhards, with some code taken
* from the obj.c/.h files.
*
* Copyright 2007, 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.
*/
#include "config.h"
#include <stdlib.h>
#include <assert.h>
#include "rsyslog.h"
#include "obj.h"
#include "var.h"
/* static data */
DEFobjStaticHelpers
/* Standard-Constructor
*/
BEGINobjConstruct(var) /* be sure to specify the object type also in END macro! */
ENDobjConstruct(var)
/* ConstructionFinalizer
* rgerhards, 2008-01-09
*/
rsRetVal varConstructFinalize(var_t __attribute__((unused)) *pThis)
{
DEFiRet;
ISOBJ_TYPE_assert(pThis, var);
RETiRet;
}
/* destructor for the var object */
BEGINobjDestruct(var) /* be sure to specify the object type also in END and CODESTART macros! */
CODESTARTobjDestruct(var)
if(pThis->pcsName != NULL)
d_free(pThis->pcsName);
if(pThis->varType == VARTYPE_CSTR) {
if(pThis->val.vpCStr != NULL)
d_free(pThis->val.vpCStr);
}
ENDobjDestruct(var)
/* DebugPrint support for the var object */
BEGINobjDebugPrint(var) /* be sure to specify the object type also in END and CODESTART macros! */
CODESTARTobjDebugPrint(var)
switch(pThis->varType) {
case VARTYPE_CSTR:
dbgoprint((obj_t*) pThis, "type: cstr, val '%s'\n", rsCStrGetSzStr(pThis->val.vpCStr));
break;
default:
dbgoprint((obj_t*) pThis, "type %d currently not suppored in debug output\n", pThis->varType);
break;
}
ENDobjDebugPrint(var)
/* free the current values (destructs objects if necessary)
*/
static rsRetVal
varUnsetValues(var_t *pThis)
{
DEFiRet;
ISOBJ_TYPE_assert(pThis, var);
if(pThis->varType == VARTYPE_CSTR)
rsCStrDestruct(&pThis->val.vpCStr);
pThis->varType = VARTYPE_NONE;
RETiRet;
}
/* set a string value
* The caller hands over the string and must n longer use it after this method
* has been called.
*/
static rsRetVal
varSetString(var_t *pThis, cstr_t *pCStr)
{
DEFiRet;
ISOBJ_TYPE_assert(pThis, var);
CHKiRet(varUnsetValues(pThis));
pThis->varType = VARTYPE_CSTR;
pThis->val.vpCStr = pCStr;
finalize_it:
RETiRet;
}
/* set an int64 value */
static rsRetVal
varSetInt64(var_t *pThis, int64 iVal)
{
DEFiRet;
ISOBJ_TYPE_assert(pThis, var);
CHKiRet(varUnsetValues(pThis));
pThis->varType = VARTYPE_INT64;
pThis->val.vInt64 = iVal;
finalize_it:
RETiRet;
}
/* queryInterface function
* rgerhards, 2008-02-21
*/
BEGINobjQueryInterface(var)
CODESTARTobjQueryInterface(var)
if(pIf->ifVersion != varCURR_IF_VERSION) { /* check for current version, increment on each change */
ABORT_FINALIZE(RS_RET_INTERFACE_NOT_SUPPORTED);
}
/* ok, we have the right interface, so let's fill it
* Please note that we may also do some backwards-compatibility
* work here (if we can support an older interface version - that,
* of course, also affects the "if" above).
*/
pIf->oID = OBJvar;
pIf->Construct = varConstruct;
pIf->ConstructFinalize = varConstructFinalize;
pIf->Destruct = varDestruct;
pIf->DebugPrint = varDebugPrint;
pIf->SetInt64 = varSetInt64;
pIf->SetString = varSetString;
finalize_it:
ENDobjQueryInterface(var)
/* Initialize the var class. Must be called as the very first method
* before anything else is called inside this class.
* rgerhards, 2008-02-19
*/
BEGINObjClassInit(var, 1) /* class, version */
OBJSetMethodHandler(objMethod_DEBUGPRINT, varDebugPrint);
OBJSetMethodHandler(objMethod_CONSTRUCTION_FINALIZER, varConstructFinalize);
ENDObjClassInit(var)
/* vi:set ai:
*/
|
