Commit | Line | Data |
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d9898ee8 | 1 | #ifndef gdbmobj_h |
2 | #define gdbmobj_h | |
3 | ||
4 | /* | |
5 | ** Copyright 1998 - 2007 Double Precision, Inc. See COPYING for | |
6 | ** distribution information. | |
7 | */ | |
8 | ||
8d138742 | 9 | static const char gdbmobj_h_rcsid[]="$Id: gdbmobj.h,v 1.8 2009/06/27 16:32:38 mrsam Exp $"; |
d9898ee8 | 10 | |
11 | #include "gdbm.h" | |
12 | ||
13 | #include <stdlib.h> | |
14 | ||
15 | #ifdef __cplusplus | |
16 | extern "C" { | |
17 | #endif | |
18 | ||
19 | struct gdbmobj { | |
20 | GDBM_FILE dbf; | |
21 | int has_dbf; | |
22 | char *prev_key; | |
23 | size_t prev_key_len; | |
24 | } ; | |
25 | ||
26 | void gdbmobj_init(struct gdbmobj *); | |
27 | ||
28 | int gdbmobj_open(struct gdbmobj *, const char *, const char *); | |
29 | void gdbmobj_close(struct gdbmobj *); | |
30 | ||
31 | #define gdbmobj_isopen(p) (!!(p)->has_dbf) | |
32 | ||
33 | char *gdbmobj_fetch(struct gdbmobj *, const char *, size_t, size_t *, const char *); | |
34 | int gdbmobj_exists(struct gdbmobj *, const char *, size_t); | |
35 | int gdbmobj_delete(struct gdbmobj *, const char *, size_t); | |
36 | int gdbmobj_store(struct gdbmobj *, const char *, size_t, const char *, | |
37 | size_t, const char *); | |
38 | ||
39 | char *gdbmobj_firstkey(struct gdbmobj *, size_t *, char **, size_t *); | |
40 | char *gdbmobj_nextkey(struct gdbmobj *, size_t *, char **, size_t *); | |
41 | ||
42 | #ifdef __cplusplus | |
8d138742 | 43 | } |
d9898ee8 | 44 | |
45 | #include <string> | |
46 | ||
47 | class GdbmObj { | |
48 | ||
49 | struct gdbmobj obj; | |
50 | ||
8d138742 CE |
51 | GdbmObj(const GdbmObj &); /* Undefined */ |
52 | GdbmObj &operator=(const GdbmObj &); /* Undefined */ | |
d9898ee8 | 53 | |
54 | public: | |
55 | GdbmObj() { gdbmobj_init(&obj); } | |
56 | ~GdbmObj() { gdbmobj_close(&obj); } | |
57 | int Open(std::string filename, const char *mode) | |
58 | { | |
59 | return ( gdbmobj_open(&obj, filename.c_str(), mode)); | |
60 | } | |
61 | ||
62 | int IsOpen() { return (gdbmobj_isopen(&obj)); } | |
63 | void Close() { gdbmobj_close(&obj); } | |
64 | ||
65 | std::string Fetch(std::string key, std::string mode) | |
66 | { | |
67 | size_t l; | |
68 | char *p=Fetch(key.c_str(), key.size(), l, mode.c_str()); | |
69 | ||
70 | if (!p) return ""; | |
71 | ||
72 | std::string v(p, p+l); | |
73 | ||
74 | free(p); | |
75 | return v; | |
76 | } | |
77 | ||
78 | bool Exists(std::string key) | |
79 | { | |
80 | return !!Exists(key.c_str(), key.size()); | |
81 | } | |
82 | ||
83 | bool Delete(std::string key) | |
84 | { | |
85 | return !!Delete(key.c_str(), key.size()); | |
86 | } | |
87 | ||
88 | int Store(std::string key, std::string val, std::string mode) | |
89 | { | |
90 | return Store(key.c_str(), key.size(), | |
91 | val.c_str(), val.size(), mode.c_str()); | |
92 | } | |
93 | ||
94 | std::string FetchFirstKeyVal(std::string &valRet) | |
95 | { | |
96 | char *key; | |
97 | size_t keyLen; | |
98 | char *val; | |
99 | size_t valLen; | |
100 | ||
101 | key=FetchFirstKeyVal(keyLen, val, valLen); | |
102 | ||
103 | if (!key) | |
104 | return ""; | |
105 | ||
106 | std::string r(key, key+keyLen); | |
107 | ||
108 | valRet=std::string(val, val+valLen); | |
109 | free(val); | |
110 | return r; | |
111 | } | |
112 | ||
113 | std::string FetchNextKeyVal(std::string &valRet) | |
114 | { | |
115 | char *key; | |
116 | size_t keyLen; | |
117 | char *val; | |
118 | size_t valLen; | |
119 | ||
120 | key=FetchNextKeyVal(keyLen, val, valLen); | |
121 | ||
122 | if (!key) | |
123 | return ""; | |
124 | ||
125 | std::string r(key, key+keyLen); | |
126 | ||
127 | valRet=std::string(val, val+valLen); | |
128 | free(val); | |
129 | return r; | |
130 | } | |
131 | ||
132 | ||
133 | char *Fetch(const char *key, size_t keylen, | |
134 | size_t &valuelen, const char *mode) | |
135 | { | |
136 | return (gdbmobj_fetch(&obj, key, keylen, | |
137 | &valuelen, mode)); | |
138 | } | |
139 | ||
140 | int Exists(const char *key, size_t keylen) | |
141 | { | |
142 | return (gdbmobj_exists(&obj, key, keylen)); | |
143 | } | |
144 | ||
145 | int Delete(const char *key, size_t keylen) | |
146 | { | |
147 | return (gdbmobj_delete(&obj, key, keylen)); | |
148 | } | |
149 | ||
150 | int Store(const char *key, size_t keylen, | |
151 | const char *value, size_t valuelen, | |
152 | const char *mode) | |
153 | { | |
154 | return (gdbmobj_store(&obj, key, keylen, value, | |
155 | valuelen, mode)); | |
156 | } | |
157 | ||
158 | char *FetchFirstKeyVal(size_t &keylen, char *&val, size_t &vallen) | |
159 | { | |
160 | return (gdbmobj_firstkey(&obj, &keylen, &val, &vallen)); | |
161 | } | |
162 | char *FetchNextKeyVal(size_t &keylen, char *&val, size_t &vallen) | |
163 | { | |
164 | return (gdbmobj_nextkey(&obj, &keylen, &val, &vallen)); | |
165 | } | |
166 | } ; | |
167 | ||
168 | #endif | |
169 | ||
170 | #endif |