1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #if (PERL_VERSION < 5) || ((PERL_VERSION == 5) && (PERL_SUBVERSION <= 6)) |
5 | #if (PERL_VERSION < 5) || ((PERL_VERSION == 5) && (PERL_SUBVERSION <= 6)) |
6 | # define get_sv perl_get_sv |
6 | # define get_sv perl_get_sv |
7 | # define call_method perl_call_method |
7 | # define call_method perl_call_method |
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8 | # define call_sv perl_call_sv |
8 | #endif |
9 | #endif |
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10 | |
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11 | #if (PERL_VERSION > 5) || ((PERL_VERSION == 5) && (PERL_SUBVERSION >= 6)) |
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12 | # define CAN_UTF8 1 |
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13 | #endif |
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14 | |
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15 | #define MAX_CACHED_STATEMENT_SIZE 8192 |
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16 | |
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17 | static SV * |
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18 | sql_upgrade_utf8 (SV *sv) |
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19 | { |
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20 | #if CAN_UTF8 |
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21 | if (SvPOK (sv)) |
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22 | sv_utf8_upgrade (sv); |
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23 | #endif |
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24 | return sv; |
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25 | } |
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26 | |
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27 | static SV * |
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28 | mortalcopy_and_maybe_force_utf8(int utf8, SV *sv) |
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29 | { |
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30 | sv = sv_mortalcopy (sv); |
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31 | #if CAN_UTF8 |
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32 | if (utf8 && SvPOK (sv)) |
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33 | SvUTF8_on (sv); |
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34 | #endif |
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35 | return sv; |
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36 | } |
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37 | |
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38 | #define maybe_upgrade_utf8(utf8,sv) ((utf8) ? sql_upgrade_utf8 (sv) : (sv)) |
9 | |
39 | |
10 | #define is_dbh(sv) ((sv) && sv_isobject (sv) && sv_derived_from ((sv), "DBI::db")) |
40 | #define is_dbh(sv) ((sv) && sv_isobject (sv) && sv_derived_from ((sv), "DBI::db")) |
11 | |
41 | |
12 | typedef struct lru_node { |
42 | typedef struct lru_node { |
13 | struct lru_node *next; |
43 | struct lru_node *next; |
… | |
… | |
19 | SV *sth; |
49 | SV *sth; |
20 | #if 0 /* method cache */ |
50 | #if 0 /* method cache */ |
21 | GV *execute; |
51 | GV *execute; |
22 | GV *bind_columns; |
52 | GV *bind_columns; |
23 | GV *fetch; |
53 | GV *fetch; |
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54 | GV *finish; |
24 | #endif |
55 | #endif |
25 | } lru_node; |
56 | } lru_node; |
26 | |
57 | |
27 | static lru_node lru_list; |
58 | static lru_node lru_list; |
28 | static int lru_size; |
59 | static int lru_size; |
… | |
… | |
49 | char *statement = SvPV (sql, len); |
80 | char *statement = SvPV (sql, len); |
50 | |
81 | |
51 | dbh = SvRV (dbh); |
82 | dbh = SvRV (dbh); |
52 | |
83 | |
53 | lru_hash; |
84 | lru_hash; |
54 | |
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55 | /*fprintf (stderr, "F: %08lx %s\n", hash, SvPV_nolen (sql));/*D*/ |
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56 | |
85 | |
57 | n = &lru_list; |
86 | n = &lru_list; |
58 | do { |
87 | do { |
59 | n = n->next; |
88 | n = n->next; |
60 | if (!n->hash) |
89 | if (!n->hash) |
… | |
… | |
83 | n = lru_list.prev; |
112 | n = lru_list.prev; |
84 | |
113 | |
85 | lru_list.prev = n->prev; |
114 | lru_list.prev = n->prev; |
86 | n->prev->next = &lru_list; |
115 | n->prev->next = &lru_list; |
87 | |
116 | |
88 | /*fprintf (stderr, "N: %s\n", SvPV_nolen (n->sql));/*D*/ |
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89 | |
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90 | SvREFCNT_dec (n->dbh); |
117 | SvREFCNT_dec (n->dbh); |
91 | SvREFCNT_dec (n->sql); |
118 | SvREFCNT_dec (n->sql); |
92 | SvREFCNT_dec (n->sth); |
119 | SvREFCNT_dec (n->sth); |
93 | Safefree (n); |
120 | Safefree (n); |
94 | |
121 | |
… | |
… | |
106 | |
133 | |
107 | dbh = SvRV (dbh); |
134 | dbh = SvRV (dbh); |
108 | |
135 | |
109 | lru_hash; |
136 | lru_hash; |
110 | |
137 | |
111 | /*fprintf (stderr, "S: %08lx %s\n", hash, SvPV_nolen (sql));/*D*/ |
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112 | |
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113 | lru_size++; |
138 | lru_size++; |
114 | if (lru_size > lru_maxsize) |
139 | if (lru_size > lru_maxsize) |
115 | lru_nukeone (); |
140 | lru_nukeone (); |
116 | |
141 | |
117 | New (0, n, 1, lru_node); |
142 | New (0, n, 1, lru_node); |
… | |
… | |
137 | } |
162 | } |
138 | } |
163 | } |
139 | |
164 | |
140 | static GV *sql_exec; |
165 | static GV *sql_exec; |
141 | static GV *DBH; |
166 | static GV *DBH; |
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167 | static SV *sv_prepare, *sv_execute, *sv_bind_columns, |
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168 | *sv_fetchrow_arrayref, *sv_fetchall_arrayref, |
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169 | *sv_finish; |
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170 | |
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171 | #define newconstpv(str) newSVpvn ((str), sizeof (str)) |
142 | |
172 | |
143 | MODULE = PApp::SQL PACKAGE = PApp::SQL |
173 | MODULE = PApp::SQL PACKAGE = PApp::SQL |
144 | |
174 | |
145 | PROTOTYPES: DISABLE |
175 | PROTOTYPES: DISABLE |
146 | |
176 | |
147 | BOOT: |
177 | BOOT: |
148 | { |
178 | { |
149 | sql_exec = gv_fetchpv ("PApp::SQL::sql_exec", TRUE, SVt_PV); |
179 | sql_exec = gv_fetchpv ("PApp::SQL::sql_exec", TRUE, SVt_PV); |
150 | DBH = gv_fetchpv ("PApp::SQL::DBH" , TRUE, SVt_PV); |
180 | DBH = gv_fetchpv ("PApp::SQL::DBH" , TRUE, SVt_PV); |
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181 | |
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182 | if (!sv_prepare) |
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183 | { |
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184 | sv_prepare = newconstpv ("prepare"); |
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185 | sv_execute = newconstpv ("execute"); |
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186 | sv_bind_columns = newconstpv ("bind_columns"); |
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187 | sv_fetchrow_arrayref = newconstpv ("fetchrow_arrayref"); |
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188 | sv_fetchall_arrayref = newconstpv ("fetchall_arrayref"); |
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189 | sv_finish = newconstpv ("finish"); |
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190 | } |
151 | |
191 | |
152 | /* apache might BOOT: twice :( */ |
192 | /* apache might BOOT: twice :( */ |
153 | if (lru_size) |
193 | if (lru_size) |
154 | lru_cachesize (0); |
194 | lru_cachesize (0); |
155 | |
195 | |
… | |
… | |
167 | RETVAL |
207 | RETVAL |
168 | |
208 | |
169 | void |
209 | void |
170 | sql_exec(...) |
210 | sql_exec(...) |
171 | ALIAS: |
211 | ALIAS: |
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212 | sql_uexec = 1 |
172 | sql_fetch = 1 |
213 | sql_fetch = 2 |
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214 | sql_ufetch = 3 |
173 | sql_fetchall = 2 |
215 | sql_fetchall = 4 |
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216 | sql_ufetchall = 5 |
174 | sql_exists = 4 |
217 | sql_exists = 6 |
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218 | sql_uexists = 7 |
175 | PPCODE: |
219 | PPCODE: |
176 | { |
220 | { |
177 | if (items == 0) |
221 | if (items == 0) |
178 | croak ("Usage: sql_exec [database-handle,] [bind-var-refs,... ] \"sql-statement\", [arguments, ...]"); |
222 | croak ("Usage: sql_exec [database-handle,] [bind-var-refs,... ] \"sql-statement\", [arguments, ...]"); |
179 | else |
223 | else |
… | |
… | |
183 | int count; |
227 | int count; |
184 | SV *dbh = ST(0); |
228 | SV *dbh = ST(0); |
185 | SV *sth; |
229 | SV *sth; |
186 | SV *sql; |
230 | SV *sql; |
187 | SV *execute; |
231 | SV *execute; |
188 | STRLEN dc; |
232 | STRLEN dc, dd; /* dummy */ |
189 | |
233 | |
190 | /* save our arguments against destruction through function calls */ |
234 | /* save our arguments against destruction through function calls */ |
191 | SP += items; |
235 | SP += items; |
192 | |
236 | |
193 | /* first check wether we should use an explicit db handle */ |
237 | /* first check wether we should use an explicit db handle */ |
194 | if (!is_dbh (dbh)) |
238 | if (!is_dbh (dbh)) |
195 | { |
239 | { |
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240 | /* the next line doesn't work - check why later maybe */ |
196 | dbh = get_sv ("DBH", FALSE); |
241 | /* dbh = get_sv ("DBH", FALSE); |
197 | if (!is_dbh (dbh)) |
242 | if (!is_dbh (dbh)) |
198 | { |
243 | {*/ |
199 | dbh = GvSV(DBH); |
244 | dbh = GvSV(DBH); |
200 | if (!is_dbh (dbh)) |
245 | if (!is_dbh (dbh)) |
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246 | croak ("sql_exec: no $DBH argument and no fallback in $PApp::SQL::DBH"); |
201 | croak ("sql_exec: no $DBH found in current package or in PApp::SQL::"); |
247 | /*croak ("sql_exec: no $DBH found in current package or in PApp::SQL::"); |
202 | } |
248 | }*/ |
203 | } |
249 | } |
204 | else |
250 | else |
205 | arg++; /* we consumed one argument */ |
251 | arg++; /* we consumed one argument */ |
206 | |
252 | |
207 | /* count the remaining references (for bind_columns) */ |
253 | /* count the remaining references (for bind_columns) */ |
… | |
… | |
218 | if (!SvPOK (ST(arg))) |
264 | if (!SvPOK (ST(arg))) |
219 | croak ("sql_exec: sql-statement must be a string"); |
265 | croak ("sql_exec: sql-statement must be a string"); |
220 | |
266 | |
221 | sql = ST(arg); arg++; |
267 | sql = ST(arg); arg++; |
222 | |
268 | |
223 | if (ix == 4) |
269 | if ((ix & ~1) == 6) |
224 | { |
270 | { |
225 | SV *neu = sv_2mortal (newSVpv ("select count(*) > 0 from ", 0)); |
271 | SV *neu = sv_2mortal (newSVpv ("select count(*) > 0 from ", 0)); |
226 | sv_catsv (neu, sql); |
272 | sv_catsv (neu, sql); |
227 | sv_catpv (neu, " limit 1"); |
273 | sv_catpv (neu, " limit 1"); |
228 | sql = neu; |
274 | sql = neu; |
229 | ix = 1; /* sql_fetch */ |
275 | ix -= 4; /* sql_fetch */ |
230 | } |
276 | } |
231 | |
277 | |
232 | /* check cache for existing statement handle */ |
278 | /* check cache for existing statement handle */ |
233 | sth = lru_fetch (dbh, sql); |
279 | sth = lru_fetch (dbh, sql); |
234 | if (!sth) |
280 | if (!sth) |
… | |
… | |
236 | PUSHMARK (SP); |
282 | PUSHMARK (SP); |
237 | EXTEND (SP, 2); |
283 | EXTEND (SP, 2); |
238 | PUSHs (dbh); |
284 | PUSHs (dbh); |
239 | PUSHs (sql); |
285 | PUSHs (sql); |
240 | PUTBACK; |
286 | PUTBACK; |
241 | count = call_method ("prepare", G_SCALAR); |
287 | count = call_sv (sv_prepare, G_METHOD | G_SCALAR); |
242 | SPAGAIN; |
288 | SPAGAIN; |
243 | |
289 | |
244 | if (count != 1) |
290 | if (count != 1) |
245 | croak ("sql_exec: unable to prepare() statement '%s': %s", |
291 | croak ("sql_exec: unable to prepare() statement '%s': %s", |
246 | SvPV (sql, dc), |
292 | SvPV (sql, dc), |
247 | SvPV (get_sv ("DBI::errstr", TRUE), dc)); |
293 | SvPV (get_sv ("DBI::errstr", TRUE), dd)); |
248 | |
294 | |
249 | sth = POPs; |
295 | sth = POPs; |
250 | |
296 | |
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297 | if (SvLEN (sql) < MAX_CACHED_STATEMENT_SIZE) |
251 | lru_store (dbh, sql, sth); |
298 | lru_store (dbh, sql, sth); |
252 | } |
299 | } |
253 | |
300 | |
254 | PUSHMARK (SP); |
301 | PUSHMARK (SP); |
255 | EXTEND (SP, items - arg + 1); |
302 | EXTEND (SP, items - arg + 1); |
256 | PUSHs (sth); |
303 | PUSHs (sth); |
257 | while (items > arg) |
304 | while (items > arg) |
258 | { |
305 | { |
259 | PUSHs (ST(arg)); |
306 | PUSHs (maybe_upgrade_utf8 (ix & 1, ST(arg))); |
260 | arg++; |
307 | arg++; |
261 | } |
308 | } |
262 | |
309 | |
263 | PUTBACK; |
310 | PUTBACK; |
264 | /* { static GV *execute; |
311 | /* { static GV *execute; |
265 | if (!execute) execute = gv_fetchmethod_autoload(SvSTASH(SvRV(sth)), "execute", 0); |
312 | if (!execute) execute = gv_fetchmethod_autoload(SvSTASH(SvRV(sth)), "execute", 0); |
266 | count = call_sv(GvCV(execute), G_SCALAR); |
313 | count = call_sv(GvCV(execute), G_SCALAR); |
267 | }*/ |
314 | }*/ |
268 | count = call_method ("execute", G_SCALAR); |
315 | count = call_sv (sv_execute, G_METHOD | G_SCALAR); |
269 | SPAGAIN; |
316 | SPAGAIN; |
270 | |
317 | |
271 | if (count != 1) |
318 | if (count != 1) |
272 | croak ("sql_exec: execute() didn't return any value ('%s'): %s", |
319 | croak ("sql_exec: execute() didn't return any value ('%s'): %s", |
273 | SvPV (sql, dc), |
320 | SvPV (sql, dc), |
274 | SvPV (get_sv ("DBI::errstr", TRUE), dc)); |
321 | SvPV (get_sv ("DBI::errstr", TRUE), dd)); |
275 | |
322 | |
276 | execute = POPs; |
323 | execute = POPs; |
277 | |
324 | |
278 | if (!SvTRUE (execute)) |
325 | if (!SvTRUE (execute)) |
279 | croak ("sql_exec: unable to execute statement '%s' (%s)", |
326 | croak ("sql_exec: unable to execute statement '%s' (%s)", |
280 | SvPV (sql, dc), |
327 | SvPV (sql, dc), |
281 | SvPV (get_sv ("DBI::errstr", TRUE), dc)); |
328 | SvPV (get_sv ("DBI::errstr", TRUE), dd)); |
282 | |
329 | |
283 | sv_setsv (GvSV(sql_exec), execute); |
330 | sv_setsv (GvSV(sql_exec), execute); |
284 | |
331 | |
285 | if (bind_first != bind_last) |
332 | if (bind_first != bind_last) |
286 | { |
333 | { |
… | |
… | |
291 | PUSHs (ST(bind_first)); |
338 | PUSHs (ST(bind_first)); |
292 | bind_first++; |
339 | bind_first++; |
293 | } while (bind_first != bind_last); |
340 | } while (bind_first != bind_last); |
294 | |
341 | |
295 | PUTBACK; |
342 | PUTBACK; |
296 | count = call_method ("bind_columns", G_SCALAR); |
343 | count = call_sv (sv_bind_columns, G_METHOD | G_SCALAR); |
297 | SPAGAIN; |
344 | SPAGAIN; |
298 | |
345 | |
299 | if (count != 1) |
346 | if (count != 1) |
300 | croak ("sql_exec: bind_columns() didn't return any value ('%s'): %s", |
347 | croak ("sql_exec: bind_columns() didn't return any value ('%s'): %s", |
301 | SvPV (sql, dc), |
348 | SvPV (sql, dc), |
302 | SvPV (get_sv ("DBI::errstr", TRUE), dc)); |
349 | SvPV (get_sv ("DBI::errstr", TRUE), dd)); |
303 | |
350 | |
304 | if (!SvOK (POPs)) |
351 | if (!SvOK (POPs)) |
305 | croak ("sql_exec: bind_columns() didn't return a true ('%s'): %s", |
352 | croak ("sql_exec: bind_columns() didn't return a true ('%s'): %s", |
306 | SvPV (sql, dc), |
353 | SvPV (sql, dc), |
307 | SvPV (get_sv ("DBI::errstr", TRUE), dc)); |
354 | SvPV (get_sv ("DBI::errstr", TRUE), dd)); |
308 | } |
355 | } |
309 | |
356 | |
310 | /* free our arguments from the stack */ |
357 | /* free our arguments from the stack */ |
311 | SP -= items; |
358 | SP -= items; |
312 | |
359 | |
313 | if (ix == 1) |
360 | if ((ix & ~1) == 2) |
314 | { /* sql_fetch */ |
361 | { /* sql_fetch */ |
315 | SV *row; |
362 | SV *row; |
316 | |
363 | |
317 | PUSHMARK (SP); |
364 | PUSHMARK (SP); |
318 | XPUSHs (sth); |
365 | XPUSHs (sth); |
319 | PUTBACK; |
366 | PUTBACK; |
320 | count = call_method ("fetchrow_arrayref", G_SCALAR); |
367 | count = call_sv (sv_fetchrow_arrayref, G_METHOD | G_SCALAR); |
321 | SPAGAIN; |
368 | SPAGAIN; |
322 | |
369 | |
323 | if (count != 1) |
370 | if (count != 1) |
324 | abort (); |
371 | abort (); |
325 | |
372 | |
… | |
… | |
334 | case G_VOID: |
381 | case G_VOID: |
335 | /* no thing */ |
382 | /* no thing */ |
336 | break; |
383 | break; |
337 | case G_SCALAR: |
384 | case G_SCALAR: |
338 | /* the first element */ |
385 | /* the first element */ |
339 | XPUSHs (*av_fetch ((AV *)SvRV (row), 0, 1)); |
386 | XPUSHs (mortalcopy_and_maybe_force_utf8 (ix & 1, *av_fetch ((AV *)SvRV (row), 0, 1))); |
340 | break; |
387 | break; |
341 | case G_ARRAY: |
388 | case G_ARRAY: |
342 | av = (AV *)SvRV (row); |
389 | av = (AV *)SvRV (row); |
343 | count = AvFILL (av) + 1; |
390 | count = AvFILL (av) + 1; |
344 | EXTEND (SP, count); |
391 | EXTEND (SP, count); |
345 | for (arg = 0; arg < count; arg++) |
392 | for (arg = 0; arg < count; arg++) |
346 | PUSHs (AvARRAY (av)[arg]); |
393 | PUSHs (mortalcopy_and_maybe_force_utf8 (ix & 1, AvARRAY (av)[arg])); |
347 | |
394 | |
348 | break; |
395 | break; |
349 | default: |
396 | default: |
350 | abort (); |
397 | abort (); |
351 | } |
398 | } |
352 | } |
399 | } |
353 | } |
400 | } |
354 | else if (ix == 2) |
401 | else if ((ix & ~1) == 4) |
355 | { /* sql_fetchall */ |
402 | { /* sql_fetchall */ |
356 | SV *rows; |
403 | SV *rows; |
357 | |
404 | |
358 | PUSHMARK (SP); |
405 | PUSHMARK (SP); |
359 | XPUSHs (sth); |
406 | XPUSHs (sth); |
360 | PUTBACK; |
407 | PUTBACK; |
361 | count = call_method ("fetchall_arrayref", G_SCALAR); |
408 | count = call_sv (sv_fetchall_arrayref, G_METHOD | G_SCALAR); |
362 | SPAGAIN; |
409 | SPAGAIN; |
363 | |
410 | |
364 | if (count != 1) |
411 | if (count != 1) |
365 | abort (); |
412 | abort (); |
366 | |
413 | |
… | |
… | |
371 | AV *av = (AV *)SvRV (rows); |
418 | AV *av = (AV *)SvRV (rows); |
372 | count = AvFILL (av) + 1; |
419 | count = AvFILL (av) + 1; |
373 | |
420 | |
374 | if (count) |
421 | if (count) |
375 | { |
422 | { |
376 | int columns = AvFILL ((AV *)SvRV (AvARRAY(av)[0])) + 1; /* columns? */ |
423 | int columns = AvFILL ((AV *) SvRV (AvARRAY (av)[0])) + 1; /* columns? */ |
377 | |
424 | |
378 | EXTEND (SP, count); |
425 | EXTEND (SP, count); |
379 | if (columns == 1) |
426 | if (columns == 1) |
380 | for (arg = 0; arg < count; arg++) |
427 | for (arg = 0; arg < count; arg++) |
381 | PUSHs (AvARRAY ((AV *)SvRV (AvARRAY (av)[arg]))[0]); |
428 | PUSHs (mortalcopy_and_maybe_force_utf8 (ix & 1, AvARRAY ((AV *)SvRV (AvARRAY (av)[arg]))[0])); |
382 | else |
429 | else |
383 | for (arg = 0; arg < count; arg++) |
430 | for (arg = 0; arg < count; arg++) |
384 | PUSHs (AvARRAY (av)[arg]); |
431 | PUSHs (mortalcopy_and_maybe_force_utf8 (ix & 1, AvARRAY (av)[arg])); |
385 | } |
432 | } |
386 | } |
433 | } |
387 | } |
434 | } |
388 | else |
435 | else |
389 | XPUSHs (sth); |
436 | XPUSHs (sth); |
390 | |
437 | |
391 | if (ix || GIMME_V == G_VOID) |
438 | if (ix > 1 || GIMME_V == G_VOID) |
392 | { |
439 | { |
393 | PUSHMARK (SP); |
440 | PUSHMARK (SP); |
394 | XPUSHs (sth); |
441 | XPUSHs (sth); |
395 | PUTBACK; |
442 | PUTBACK; |
396 | (void) call_method ("finish", G_DISCARD); |
443 | (void) call_sv (sv_finish, G_METHOD | G_DISCARD); |
397 | SPAGAIN; |
444 | SPAGAIN; |
398 | } |
445 | } |
399 | } |
446 | } |
400 | } |
447 | } |
401 | |
448 | |