Commit | Line | Data |
a0d0e21e |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
4 | |
5 | #include <gdbm.h> |
6 | #include <fcntl.h> |
7 | |
9fe6733a |
8 | typedef struct { |
9 | GDBM_FILE dbp ; |
10 | SV * filter_fetch_key ; |
11 | SV * filter_store_key ; |
12 | SV * filter_fetch_value ; |
13 | SV * filter_store_value ; |
14 | int filtering ; |
15 | } GDBM_File_type; |
16 | |
17 | typedef GDBM_File_type * GDBM_File ; |
18 | typedef datum datum_key ; |
19 | typedef datum datum_value ; |
20 | |
21 | #define ckFilter(arg,type,name) \ |
22 | if (db->type) { \ |
23 | SV * save_defsv ; \ |
24 | /* printf("filtering %s\n", name) ;*/ \ |
25 | if (db->filtering) \ |
26 | croak("recursion detected in %s", name) ; \ |
27 | db->filtering = TRUE ; \ |
28 | save_defsv = newSVsv(DEFSV) ; \ |
29 | sv_setsv(DEFSV, arg) ; \ |
30 | PUSHMARK(sp) ; \ |
31 | (void) perl_call_sv(db->type, G_DISCARD|G_NOARGS); \ |
32 | sv_setsv(arg, DEFSV) ; \ |
33 | sv_setsv(DEFSV, save_defsv) ; \ |
34 | SvREFCNT_dec(save_defsv) ; \ |
35 | db->filtering = FALSE ; \ |
36 | /*printf("end of filtering %s\n", name) ;*/ \ |
37 | } |
a0d0e21e |
38 | |
a0d0e21e |
39 | |
9fe6733a |
40 | |
41 | #define GDBM_BLOCKSIZE 0 /* gdbm defaults to stat blocksize */ |
a0d0e21e |
42 | |
12f917ad |
43 | typedef void (*FATALFUNC)(); |
a0d0e21e |
44 | |
8063af02 |
45 | #ifndef GDBM_FAST |
a0d0e21e |
46 | static int |
f0f333f4 |
47 | not_here(char *s) |
a0d0e21e |
48 | { |
49 | croak("GDBM_File::%s not implemented on this architecture", s); |
50 | return -1; |
51 | } |
8063af02 |
52 | #endif |
a0d0e21e |
53 | |
097d66a9 |
54 | /* GDBM allocates the datum with system malloc() and expects the user |
55 | * to free() it. So we either have to free() it immediately, or have |
56 | * perl free() it when it deallocates the SV, depending on whether |
57 | * perl uses malloc()/free() or not. */ |
58 | static void |
caa0600b |
59 | output_datum(pTHX_ SV *arg, char *str, int size) |
097d66a9 |
60 | { |
53e3a7fb |
61 | #if (!defined(MYMALLOC) || (defined(MYMALLOC) && defined(PERL_POLLUTE_MALLOC))) && !defined(LEAKTEST) |
097d66a9 |
62 | sv_usepvn(arg, str, size); |
63 | #else |
64 | sv_setpvn(arg, str, size); |
65 | safesysfree(str); |
66 | #endif |
67 | } |
68 | |
e50aee73 |
69 | /* Versions of gdbm prior to 1.7x might not have the gdbm_sync, |
70 | gdbm_exists, and gdbm_setopt functions. Apparently Slackware |
71 | (Linux) 2.1 contains gdbm-1.5 (which dates back to 1991). |
72 | */ |
73 | #ifndef GDBM_FAST |
74 | #define gdbm_exists(db,key) not_here("gdbm_exists") |
75 | #define gdbm_sync(db) (void) not_here("gdbm_sync") |
76 | #define gdbm_setopt(db,optflag,optval,optlen) not_here("gdbm_setopt") |
77 | #endif |
78 | |
a0d0e21e |
79 | static double |
f0f333f4 |
80 | constant(char *name, int arg) |
a0d0e21e |
81 | { |
82 | errno = 0; |
83 | switch (*name) { |
84 | case 'A': |
85 | break; |
86 | case 'B': |
87 | break; |
88 | case 'C': |
89 | break; |
90 | case 'D': |
91 | break; |
92 | case 'E': |
93 | break; |
94 | case 'F': |
95 | break; |
96 | case 'G': |
97 | if (strEQ(name, "GDBM_CACHESIZE")) |
98 | #ifdef GDBM_CACHESIZE |
99 | return GDBM_CACHESIZE; |
100 | #else |
101 | goto not_there; |
102 | #endif |
103 | if (strEQ(name, "GDBM_FAST")) |
104 | #ifdef GDBM_FAST |
105 | return GDBM_FAST; |
106 | #else |
107 | goto not_there; |
108 | #endif |
109 | if (strEQ(name, "GDBM_FASTMODE")) |
110 | #ifdef GDBM_FASTMODE |
111 | return GDBM_FASTMODE; |
112 | #else |
113 | goto not_there; |
114 | #endif |
115 | if (strEQ(name, "GDBM_INSERT")) |
116 | #ifdef GDBM_INSERT |
117 | return GDBM_INSERT; |
118 | #else |
119 | goto not_there; |
120 | #endif |
121 | if (strEQ(name, "GDBM_NEWDB")) |
122 | #ifdef GDBM_NEWDB |
123 | return GDBM_NEWDB; |
124 | #else |
125 | goto not_there; |
126 | #endif |
8722d079 |
127 | if (strEQ(name, "GDBM_NOLOCK")) |
128 | #ifdef GDBM_NOLOCK |
129 | return GDBM_NOLOCK; |
130 | #else |
131 | goto not_there; |
132 | #endif |
a0d0e21e |
133 | if (strEQ(name, "GDBM_READER")) |
134 | #ifdef GDBM_READER |
135 | return GDBM_READER; |
136 | #else |
137 | goto not_there; |
138 | #endif |
139 | if (strEQ(name, "GDBM_REPLACE")) |
140 | #ifdef GDBM_REPLACE |
141 | return GDBM_REPLACE; |
142 | #else |
143 | goto not_there; |
144 | #endif |
145 | if (strEQ(name, "GDBM_WRCREAT")) |
146 | #ifdef GDBM_WRCREAT |
147 | return GDBM_WRCREAT; |
148 | #else |
149 | goto not_there; |
150 | #endif |
151 | if (strEQ(name, "GDBM_WRITER")) |
152 | #ifdef GDBM_WRITER |
153 | return GDBM_WRITER; |
154 | #else |
155 | goto not_there; |
156 | #endif |
157 | break; |
158 | case 'H': |
159 | break; |
160 | case 'I': |
161 | break; |
162 | case 'J': |
163 | break; |
164 | case 'K': |
165 | break; |
166 | case 'L': |
167 | break; |
168 | case 'M': |
169 | break; |
170 | case 'N': |
171 | break; |
172 | case 'O': |
173 | break; |
174 | case 'P': |
175 | break; |
176 | case 'Q': |
177 | break; |
178 | case 'R': |
179 | break; |
180 | case 'S': |
181 | break; |
182 | case 'T': |
183 | break; |
184 | case 'U': |
185 | break; |
186 | case 'V': |
187 | break; |
188 | case 'W': |
189 | break; |
190 | case 'X': |
191 | break; |
192 | case 'Y': |
193 | break; |
194 | case 'Z': |
195 | break; |
196 | } |
197 | errno = EINVAL; |
198 | return 0; |
199 | |
200 | not_there: |
201 | errno = ENOENT; |
202 | return 0; |
203 | } |
204 | |
205 | MODULE = GDBM_File PACKAGE = GDBM_File PREFIX = gdbm_ |
206 | |
207 | double |
208 | constant(name,arg) |
209 | char * name |
210 | int arg |
211 | |
212 | |
213 | GDBM_File |
214 | gdbm_TIEHASH(dbtype, name, read_write, mode, fatal_func = (FATALFUNC)croak) |
215 | char * dbtype |
216 | char * name |
217 | int read_write |
218 | int mode |
219 | FATALFUNC fatal_func |
9fe6733a |
220 | CODE: |
221 | { |
222 | GDBM_FILE dbp ; |
a0d0e21e |
223 | |
9fe6733a |
224 | RETVAL = NULL ; |
8063af02 |
225 | if ((dbp = gdbm_open(name, GDBM_BLOCKSIZE, read_write, mode, fatal_func))) { |
9fe6733a |
226 | RETVAL = (GDBM_File)safemalloc(sizeof(GDBM_File_type)) ; |
227 | Zero(RETVAL, 1, GDBM_File_type) ; |
228 | RETVAL->dbp = dbp ; |
229 | } |
230 | |
231 | } |
232 | OUTPUT: |
233 | RETVAL |
234 | |
235 | |
236 | #define gdbm_close(db) gdbm_close(db->dbp) |
a0d0e21e |
237 | void |
238 | gdbm_close(db) |
239 | GDBM_File db |
240 | CLEANUP: |
241 | |
242 | void |
243 | gdbm_DESTROY(db) |
244 | GDBM_File db |
245 | CODE: |
246 | gdbm_close(db); |
eb99164f |
247 | safefree(db); |
a0d0e21e |
248 | |
9fe6733a |
249 | #define gdbm_FETCH(db,key) gdbm_fetch(db->dbp,key) |
250 | datum_value |
a0d0e21e |
251 | gdbm_FETCH(db, key) |
252 | GDBM_File db |
9fe6733a |
253 | datum_key key |
a0d0e21e |
254 | |
9fe6733a |
255 | #define gdbm_STORE(db,key,value,flags) gdbm_store(db->dbp,key,value,flags) |
a0d0e21e |
256 | int |
257 | gdbm_STORE(db, key, value, flags = GDBM_REPLACE) |
258 | GDBM_File db |
9fe6733a |
259 | datum_key key |
260 | datum_value value |
a0d0e21e |
261 | int flags |
262 | CLEANUP: |
263 | if (RETVAL) { |
264 | if (RETVAL < 0 && errno == EPERM) |
265 | croak("No write permission to gdbm file"); |
748a9306 |
266 | croak("gdbm store returned %d, errno %d, key \"%.*s\"", |
a0d0e21e |
267 | RETVAL,errno,key.dsize,key.dptr); |
a0d0e21e |
268 | } |
269 | |
9fe6733a |
270 | #define gdbm_DELETE(db,key) gdbm_delete(db->dbp,key) |
a0d0e21e |
271 | int |
272 | gdbm_DELETE(db, key) |
273 | GDBM_File db |
9fe6733a |
274 | datum_key key |
a0d0e21e |
275 | |
9fe6733a |
276 | #define gdbm_FIRSTKEY(db) gdbm_firstkey(db->dbp) |
277 | datum_key |
a0d0e21e |
278 | gdbm_FIRSTKEY(db) |
279 | GDBM_File db |
280 | |
9fe6733a |
281 | #define gdbm_NEXTKEY(db,key) gdbm_nextkey(db->dbp,key) |
282 | datum_key |
a0d0e21e |
283 | gdbm_NEXTKEY(db, key) |
284 | GDBM_File db |
9fe6733a |
285 | datum_key key |
a0d0e21e |
286 | |
9fe6733a |
287 | #define gdbm_reorganize(db) gdbm_reorganize(db->dbp) |
a0d0e21e |
288 | int |
289 | gdbm_reorganize(db) |
290 | GDBM_File db |
291 | |
3b35bae3 |
292 | |
9fe6733a |
293 | #define gdbm_sync(db) gdbm_sync(db->dbp) |
3b35bae3 |
294 | void |
295 | gdbm_sync(db) |
296 | GDBM_File db |
297 | |
9fe6733a |
298 | #define gdbm_EXISTS(db,key) gdbm_exists(db->dbp,key) |
3b35bae3 |
299 | int |
c07a80fd |
300 | gdbm_EXISTS(db, key) |
3b35bae3 |
301 | GDBM_File db |
9fe6733a |
302 | datum_key key |
3b35bae3 |
303 | |
9fe6733a |
304 | #define gdbm_setopt(db,optflag, optval, optlen) gdbm_setopt(db->dbp,optflag, optval, optlen) |
3b35bae3 |
305 | int |
306 | gdbm_setopt (db, optflag, optval, optlen) |
307 | GDBM_File db |
308 | int optflag |
309 | int &optval |
310 | int optlen |
311 | |
9fe6733a |
312 | |
313 | #define setFilter(type) \ |
314 | { \ |
315 | if (db->type) \ |
e62f7e43 |
316 | RETVAL = sv_mortalcopy(db->type) ; \ |
317 | ST(0) = RETVAL ; \ |
9fe6733a |
318 | if (db->type && (code == &PL_sv_undef)) { \ |
319 | SvREFCNT_dec(db->type) ; \ |
320 | db->type = NULL ; \ |
321 | } \ |
322 | else if (code) { \ |
323 | if (db->type) \ |
324 | sv_setsv(db->type, code) ; \ |
325 | else \ |
326 | db->type = newSVsv(code) ; \ |
327 | } \ |
328 | } |
329 | |
330 | |
331 | |
332 | SV * |
333 | filter_fetch_key(db, code) |
334 | GDBM_File db |
335 | SV * code |
336 | SV * RETVAL = &PL_sv_undef ; |
337 | CODE: |
338 | setFilter(filter_fetch_key) ; |
9fe6733a |
339 | |
340 | SV * |
341 | filter_store_key(db, code) |
342 | GDBM_File db |
343 | SV * code |
344 | SV * RETVAL = &PL_sv_undef ; |
345 | CODE: |
346 | setFilter(filter_store_key) ; |
9fe6733a |
347 | |
348 | SV * |
349 | filter_fetch_value(db, code) |
350 | GDBM_File db |
351 | SV * code |
352 | SV * RETVAL = &PL_sv_undef ; |
353 | CODE: |
354 | setFilter(filter_fetch_value) ; |
9fe6733a |
355 | |
356 | SV * |
357 | filter_store_value(db, code) |
358 | GDBM_File db |
359 | SV * code |
360 | SV * RETVAL = &PL_sv_undef ; |
361 | CODE: |
362 | setFilter(filter_store_value) ; |
9fe6733a |
363 | |