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1 | #define PERL_NO_GET_CONTEXT |
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2 | #include "EXTERN.h" |
3 | #include "perl.h" |
4 | #include "XSUB.h" |
5 | #include "sdbm/sdbm.h" |
6 | |
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7 | typedef struct { |
8 | DBM * dbp ; |
9 | SV * filter_fetch_key ; |
10 | SV * filter_store_key ; |
11 | SV * filter_fetch_value ; |
12 | SV * filter_store_value ; |
13 | int filtering ; |
14 | } SDBM_File_type; |
15 | |
16 | typedef SDBM_File_type * SDBM_File ; |
17 | typedef datum datum_key ; |
18 | typedef datum datum_value ; |
19 | |
20 | #define ckFilter(arg,type,name) \ |
21 | if (db->type) { \ |
22 | SV * save_defsv ; \ |
23 | /* printf("filtering %s\n", name) ;*/ \ |
24 | if (db->filtering) \ |
25 | croak("recursion detected in %s", name) ; \ |
26 | db->filtering = TRUE ; \ |
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27 | save_defsv = newSVsv(DEFSV) ; \ |
28 | sv_setsv(DEFSV, arg) ; \ |
29 | PUSHMARK(sp) ; \ |
30 | (void) perl_call_sv(db->type, G_DISCARD|G_NOARGS); \ |
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31 | sv_setsv(arg, DEFSV) ; \ |
32 | sv_setsv(DEFSV, save_defsv) ; \ |
33 | SvREFCNT_dec(save_defsv) ; \ |
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34 | db->filtering = FALSE ; \ |
35 | /*printf("end of filtering %s\n", name) ;*/ \ |
36 | } |
37 | |
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38 | #define sdbm_TIEHASH(dbtype,filename,flags,mode) sdbm_open(filename,flags,mode) |
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39 | #define sdbm_FETCH(db,key) sdbm_fetch(db->dbp,key) |
40 | #define sdbm_STORE(db,key,value,flags) sdbm_store(db->dbp,key,value,flags) |
41 | #define sdbm_DELETE(db,key) sdbm_delete(db->dbp,key) |
42 | #define sdbm_EXISTS(db,key) sdbm_exists(db->dbp,key) |
43 | #define sdbm_FIRSTKEY(db) sdbm_firstkey(db->dbp) |
44 | #define sdbm_NEXTKEY(db,key) sdbm_nextkey(db->dbp) |
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45 | |
46 | |
47 | MODULE = SDBM_File PACKAGE = SDBM_File PREFIX = sdbm_ |
48 | |
49 | SDBM_File |
50 | sdbm_TIEHASH(dbtype, filename, flags, mode) |
51 | char * dbtype |
52 | char * filename |
53 | int flags |
54 | int mode |
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55 | CODE: |
56 | { |
57 | DBM * dbp ; |
58 | |
59 | RETVAL = NULL ; |
60 | if (dbp = sdbm_open(filename,flags,mode) ) { |
61 | RETVAL = (SDBM_File)safemalloc(sizeof(SDBM_File_type)) ; |
62 | Zero(RETVAL, 1, SDBM_File_type) ; |
63 | RETVAL->dbp = dbp ; |
64 | } |
65 | |
66 | } |
67 | OUTPUT: |
68 | RETVAL |
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69 | |
70 | void |
71 | sdbm_DESTROY(db) |
72 | SDBM_File db |
73 | CODE: |
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74 | sdbm_close(db->dbp); |
75 | if (db->filter_fetch_key) |
76 | SvREFCNT_dec(db->filter_fetch_key) ; |
77 | if (db->filter_store_key) |
78 | SvREFCNT_dec(db->filter_store_key) ; |
79 | if (db->filter_fetch_value) |
80 | SvREFCNT_dec(db->filter_fetch_value) ; |
81 | if (db->filter_store_value) |
82 | SvREFCNT_dec(db->filter_store_value) ; |
83 | Safefree(db) ; |
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84 | |
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85 | datum_value |
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86 | sdbm_FETCH(db, key) |
87 | SDBM_File db |
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88 | datum_key key |
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89 | |
90 | int |
91 | sdbm_STORE(db, key, value, flags = DBM_REPLACE) |
92 | SDBM_File db |
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93 | datum_key key |
94 | datum_value value |
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95 | int flags |
96 | CLEANUP: |
97 | if (RETVAL) { |
98 | if (RETVAL < 0 && errno == EPERM) |
99 | croak("No write permission to sdbm file"); |
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100 | croak("sdbm store returned %d, errno %d, key \"%s\"", |
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101 | RETVAL,errno,key.dptr); |
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102 | sdbm_clearerr(db->dbp); |
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103 | } |
104 | |
105 | int |
106 | sdbm_DELETE(db, key) |
107 | SDBM_File db |
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108 | datum_key key |
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109 | |
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110 | int |
111 | sdbm_EXISTS(db,key) |
112 | SDBM_File db |
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113 | datum_key key |
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114 | |
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115 | datum_key |
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116 | sdbm_FIRSTKEY(db) |
117 | SDBM_File db |
118 | |
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119 | datum_key |
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120 | sdbm_NEXTKEY(db, key) |
121 | SDBM_File db |
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122 | datum_key key |
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123 | |
124 | int |
125 | sdbm_error(db) |
126 | SDBM_File db |
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127 | CODE: |
128 | RETVAL = sdbm_error(db->dbp) ; |
129 | OUTPUT: |
130 | RETVAL |
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131 | |
132 | int |
133 | sdbm_clearerr(db) |
134 | SDBM_File db |
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135 | CODE: |
136 | RETVAL = sdbm_clearerr(db->dbp) ; |
137 | OUTPUT: |
138 | RETVAL |
139 | |
140 | |
141 | #define setFilter(type) \ |
142 | { \ |
143 | if (db->type) \ |
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144 | RETVAL = sv_mortalcopy(db->type) ; \ |
145 | ST(0) = RETVAL ; \ |
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146 | if (db->type && (code == &PL_sv_undef)) { \ |
147 | SvREFCNT_dec(db->type) ; \ |
148 | db->type = NULL ; \ |
149 | } \ |
150 | else if (code) { \ |
151 | if (db->type) \ |
152 | sv_setsv(db->type, code) ; \ |
153 | else \ |
154 | db->type = newSVsv(code) ; \ |
155 | } \ |
156 | } |
157 | |
158 | |
159 | |
160 | SV * |
161 | filter_fetch_key(db, code) |
162 | SDBM_File db |
163 | SV * code |
164 | SV * RETVAL = &PL_sv_undef ; |
165 | CODE: |
166 | setFilter(filter_fetch_key) ; |
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167 | |
168 | SV * |
169 | filter_store_key(db, code) |
170 | SDBM_File db |
171 | SV * code |
172 | SV * RETVAL = &PL_sv_undef ; |
173 | CODE: |
174 | setFilter(filter_store_key) ; |
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175 | |
176 | SV * |
177 | filter_fetch_value(db, code) |
178 | SDBM_File db |
179 | SV * code |
180 | SV * RETVAL = &PL_sv_undef ; |
181 | CODE: |
182 | setFilter(filter_fetch_value) ; |
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183 | |
184 | SV * |
185 | filter_store_value(db, code) |
186 | SDBM_File db |
187 | SV * code |
188 | SV * RETVAL = &PL_sv_undef ; |
189 | CODE: |
190 | setFilter(filter_store_value) ; |
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191 | |