… | |
… | |
12 | #endif |
12 | #endif |
13 | #if PATCHLEVEL < 6 |
13 | #if PATCHLEVEL < 6 |
14 | # define call_sv perl_call_sv |
14 | # define call_sv perl_call_sv |
15 | #endif |
15 | #endif |
16 | |
16 | |
|
|
17 | #define HLOG 15 |
|
|
18 | #define ULTRA_FAST 0 |
|
|
19 | |
17 | #include "lzf_c.c" |
20 | #include "lzf_c.c" |
18 | #include "lzf_d.c" |
21 | #include "lzf_d.c" |
19 | |
22 | |
20 | /* we re-use the storable header for our purposes */ |
23 | /* we re-use the storable header for our purposes */ |
21 | #define MAGIC_LO 0 |
24 | #define MAGIC_LO 0 |
22 | #define MAGIC_U 0 /* uncompressed data follows */ |
25 | #define MAGIC_U 0 /* uncompressed data follows */ |
23 | #define MAGIC_C 1 /* compressed data follows */ |
26 | #define MAGIC_C 1 /* compressed data follows */ |
24 | #define MAGIC_undef 2 /* the special value undef */ |
27 | #define MAGIC_undef 2 /* the special value undef */ |
25 | #define MAGIC_CR 3 /* storable (reference, freeze), compressed */ |
28 | #define MAGIC_CR 3 /* storable (reference, freeze), compressed */ |
26 | #define MAGIC_R 4 /* storable (reference, freeze) */ |
29 | #define MAGIC_R 4 /* storable (reference, freeze) */ |
|
|
30 | #define MAGIC_CR_deref 5 /* storable (NO reference, freeze), compressed */ |
|
|
31 | #define MAGIC_R_deref 6 /* storable (NO reference, freeze) */ |
27 | #define MAGIC_HI 7 /* room for one higher storable major */ |
32 | #define MAGIC_HI 7 /* room for one higher storable major */ |
28 | |
33 | |
29 | #define IN_RANGE(v,l,h) ((unsigned int)((unsigned)(v) - (unsigned)(l)) <= (unsigned)(h) - (unsigned)(l)) |
34 | #define IN_RANGE(v,l,h) ((unsigned int)((unsigned)(v) - (unsigned)(l)) <= (unsigned)(h) - (unsigned)(l)) |
30 | |
35 | |
|
|
36 | static SV *serializer_package, *serializer_mstore, *serializer_mretrieve; |
31 | static CV *storable_mstore, *storable_mretrieve; |
37 | static CV *storable_mstore, *storable_mretrieve; |
32 | |
38 | |
33 | static SV * |
39 | static SV * |
34 | compress_sv (SV *data, char cprepend, char uprepend) |
40 | compress_sv (SV *data, char cprepend, int uprepend) |
35 | { |
41 | { |
36 | STRLEN usize, csize; |
42 | STRLEN usize, csize; |
37 | char *src = (char *)SvPV (data, usize); |
43 | char *src = (char *)SvPV (data, usize); |
38 | |
44 | |
39 | if (usize) |
45 | if (usize) |
… | |
… | |
89 | |
95 | |
90 | if (csize) |
96 | if (csize) |
91 | { |
97 | { |
92 | SvCUR_set (ret, csize + skip); |
98 | SvCUR_set (ret, csize + skip); |
93 | } |
99 | } |
94 | else if (!uprepend) |
100 | else if (uprepend < 0) |
95 | { |
101 | { |
96 | SvREFCNT_dec (ret); |
102 | SvREFCNT_dec (ret); |
97 | ret = SvREFCNT_inc (data); |
103 | ret = SvREFCNT_inc (data); |
98 | } |
104 | } |
99 | else |
105 | else |
100 | { |
106 | { |
101 | *dst++ = 0; |
107 | *dst++ = uprepend; |
102 | |
108 | |
103 | Move ((void *)src, (void *)dst, usize, unsigned char); |
109 | Move ((void *)src, (void *)dst, usize, unsigned char); |
104 | |
110 | |
105 | SvCUR_set (ret, usize + 1); |
111 | SvCUR_set (ret, usize + 1); |
106 | } |
112 | } |
… | |
… | |
160 | usize = (usize << 6) | (*src++ & 0x3f); |
166 | usize = (usize << 6) | (*src++ & 0x3f); |
161 | usize = (usize << 6) | (*src++ & 0x3f); |
167 | usize = (usize << 6) | (*src++ & 0x3f); |
162 | usize = (usize << 6) | (*src++ & 0x3f); |
168 | usize = (usize << 6) | (*src++ & 0x3f); |
163 | } |
169 | } |
164 | else |
170 | else |
165 | croak ("compressed data corrupted"); |
171 | croak ("compressed data corrupted (invalid length)"); |
166 | |
172 | |
167 | ret = NEWSV (0, usize); |
173 | ret = NEWSV (0, usize); |
168 | SvPOK_only (ret); |
174 | SvPOK_only (ret); |
169 | dst = SvPVX (ret); |
175 | dst = SvPVX (ret); |
170 | |
176 | |
171 | if (lzf_decompress (src, csize, dst, usize) != usize) |
177 | if (lzf_decompress (src, csize, dst, usize) != usize) |
172 | croak ("compressed data corrupted", csize, skip, usize); |
178 | croak ("compressed data corrupted (size mismatch)", csize, skip, usize); |
173 | } |
179 | } |
174 | else |
180 | else |
175 | { |
181 | { |
176 | usize = csize - 1; |
182 | usize = csize - 1; |
177 | ret = NEWSV (0, usize); |
183 | ret = NEWSV (0, usize); |
… | |
… | |
190 | |
196 | |
191 | static void |
197 | static void |
192 | need_storable(void) |
198 | need_storable(void) |
193 | { |
199 | { |
194 | #if PATCHLEVEL < 6 |
200 | #if PATCHLEVEL < 6 |
|
|
201 | char req[8192]; |
|
|
202 | sprintf (req, "require %s;", SvPV_nolen (serializer_package)); |
195 | perl_eval_pv ("require Storable;", 1); |
203 | perl_eval_pv (req, 1); |
196 | #else |
204 | #else |
197 | load_module (PERL_LOADMOD_NOIMPORT, newSVpv ("Storable", 0), Nullsv); |
205 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
198 | #endif |
206 | #endif |
199 | |
207 | |
200 | storable_mstore = GvCV (gv_fetchpv ("Storable::mstore" , TRUE, SVt_PVCV)); |
208 | storable_mstore = GvCV (gv_fetchpv (SvPV_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
201 | storable_mretrieve = GvCV (gv_fetchpv ("Storable::mretrieve", TRUE, SVt_PVCV)); |
209 | storable_mretrieve = GvCV (gv_fetchpv (SvPV_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
202 | } |
210 | } |
203 | |
211 | |
204 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
212 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
|
|
213 | |
|
|
214 | BOOT: |
|
|
215 | serializer_package = newSVpv ("Storable", 0); |
|
|
216 | serializer_mstore = newSVpv ("Storable::mstore", 0); |
|
|
217 | serializer_mretrieve = newSVpv ("Storable::mretrieve", 0); |
|
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218 | |
|
|
219 | void |
|
|
220 | set_serializer(package, mstore, mretrieve) |
|
|
221 | SV * package |
|
|
222 | SV * mstore |
|
|
223 | SV * mretrieve |
|
|
224 | PROTOTYPE: $$$ |
|
|
225 | PPCODE: |
|
|
226 | SvSetSV (serializer_package , package ); |
|
|
227 | SvSetSV (serializer_mstore , mstore ); |
|
|
228 | SvSetSV (serializer_mretrieve, mretrieve); |
|
|
229 | storable_mstore = |
|
|
230 | storable_mretrieve = 0; |
205 | |
231 | |
206 | void |
232 | void |
207 | compress(data) |
233 | compress(data) |
208 | SV * data |
234 | SV * data |
209 | PROTOTYPE: $ |
235 | PROTOTYPE: $ |
210 | PPCODE: |
236 | PPCODE: |
211 | XPUSHs (sv_2mortal (compress_sv (data, 0, 1))); |
237 | XPUSHs (sv_2mortal (compress_sv (data, 0, MAGIC_U))); |
212 | |
238 | |
213 | void |
239 | void |
214 | decompress(data) |
240 | decompress(data) |
215 | SV * data |
241 | SV * data |
216 | PROTOTYPE: $ |
242 | PROTOTYPE: $ |
… | |
… | |
224 | sfreeze_cr = 1 |
250 | sfreeze_cr = 1 |
225 | sfreeze_c = 2 |
251 | sfreeze_c = 2 |
226 | PROTOTYPE: $ |
252 | PROTOTYPE: $ |
227 | PPCODE: |
253 | PPCODE: |
228 | |
254 | |
|
|
255 | SvGETMAGIC (sv); |
|
|
256 | |
229 | if (!SvOK (sv)) |
257 | if (!SvOK (sv)) |
230 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
258 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
|
|
259 | else if (SvROK (sv) |
231 | else if (SvTYPE(sv) != SVt_IV |
260 | || (SvTYPE(sv) != SVt_IV |
232 | && SvTYPE(sv) != SVt_NV |
261 | && SvTYPE(sv) != SVt_NV |
233 | && SvTYPE(sv) != SVt_PV |
262 | && SvTYPE(sv) != SVt_PV |
|
|
263 | && SvTYPE(sv) != SVt_PVIV |
|
|
264 | && SvTYPE(sv) != SVt_PVNV |
234 | && SvTYPE(sv) != SVt_PVMG) /* mstore */ |
265 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
235 | { |
266 | { |
|
|
267 | int deref = !SvROK (sv); |
|
|
268 | |
236 | if (!storable_mstore) |
269 | if (!storable_mstore) |
237 | need_storable (); |
270 | need_storable (); |
|
|
271 | |
|
|
272 | if (deref) |
|
|
273 | sv = newRV_noinc (sv); |
238 | |
274 | |
239 | PUSHMARK (SP); |
275 | PUSHMARK (SP); |
240 | XPUSHs (sv); |
276 | XPUSHs (sv); |
241 | PUTBACK; |
277 | PUTBACK; |
242 | |
278 | |
… | |
… | |
248 | sv = POPs; |
284 | sv = POPs; |
249 | |
285 | |
250 | if (SvPVX (sv)[0] != MAGIC_R) |
286 | if (SvPVX (sv)[0] != MAGIC_R) |
251 | croak ("Storable format changed, need newer version of Compress::LZF"); |
287 | croak ("Storable format changed, need newer version of Compress::LZF"); |
252 | |
288 | |
|
|
289 | if (deref) |
|
|
290 | SvPVX (sv)[0] = MAGIC_R_deref; |
|
|
291 | |
253 | if (ix) /* compress */ |
292 | if (ix) /* compress */ |
254 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_CR, 0))); |
293 | sv = sv_2mortal (compress_sv (sv, deref ? MAGIC_CR_deref : MAGIC_CR, -1)); |
255 | else |
294 | |
256 | XPUSHs (sv); |
295 | XPUSHs (sv); |
257 | } |
296 | } |
258 | else if (sv && IN_RANGE (SvPVX (sv)[0], MAGIC_LO, MAGIC_HI)) |
297 | else if (SvPOKp (sv) && IN_RANGE (SvPVX (sv)[0], MAGIC_LO, MAGIC_HI)) |
259 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, 1))); /* need to prefix only */ |
298 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, MAGIC_U))); /* need to prefix only */ |
260 | else if (ix == 2) /* compress always */ |
299 | else if (ix == 2) /* compress always */ |
261 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, 0))); |
300 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, -1))); |
|
|
301 | else if (SvNIOK (sv)) /* don't compress */ |
|
|
302 | { |
|
|
303 | STRLEN len; |
|
|
304 | char *s = SvPV (sv, len); |
|
|
305 | XPUSHs (sv_2mortal (newSVpvn (s, len))); |
|
|
306 | } |
262 | else /* don't compress */ |
307 | else /* don't compress */ |
263 | XPUSHs (sv_2mortal (SvREFCNT_inc (sv))); |
308 | XPUSHs (sv_2mortal (newSVsv (sv))); |
264 | |
309 | |
265 | void |
310 | void |
266 | sthaw(sv) |
311 | sthaw(sv) |
267 | SV * sv |
312 | SV * sv |
268 | PROTOTYPE: $ |
313 | PROTOTYPE: $ |
269 | PPCODE: |
314 | PPCODE: |
|
|
315 | |
|
|
316 | int deref = 0; |
270 | |
317 | |
271 | SvGETMAGIC (sv); |
318 | SvGETMAGIC (sv); |
272 | if (SvPOK (sv) && IN_RANGE (SvPV_nolen (sv)[0], MAGIC_LO, MAGIC_HI)) |
319 | if (SvPOK (sv) && IN_RANGE (SvPV_nolen (sv)[0], MAGIC_LO, MAGIC_HI)) |
273 | { |
320 | { |
274 | switch (SvPVX (sv)[0]) |
321 | switch (SvPVX (sv)[0]) |
… | |
… | |
283 | |
330 | |
284 | case MAGIC_C: |
331 | case MAGIC_C: |
285 | XPUSHs (sv_2mortal (decompress_sv (sv, 1))); |
332 | XPUSHs (sv_2mortal (decompress_sv (sv, 1))); |
286 | break; |
333 | break; |
287 | |
334 | |
|
|
335 | case MAGIC_R_deref: |
|
|
336 | deref = 1; |
|
|
337 | SvPVX (sv)[0] = MAGIC_R; |
|
|
338 | goto handle_MAGIC_R; |
|
|
339 | |
|
|
340 | case MAGIC_CR_deref: |
|
|
341 | deref = 1; |
288 | case MAGIC_CR: |
342 | case MAGIC_CR: |
289 | sv = sv_2mortal (decompress_sv (sv, 1)); /* mortal could be optimized */ |
343 | sv = sv_2mortal (decompress_sv (sv, 1)); /* mortal could be optimized */ |
|
|
344 | if (deref) |
|
|
345 | if (SvPVX (sv)[0] == MAGIC_R_deref) |
|
|
346 | SvPVX (sv)[0] = MAGIC_R; |
|
|
347 | else |
|
|
348 | croak ("Compress::LZF::sthaw(): invalid data, maybe you need a newer version of Compress::LZF?"); |
|
|
349 | |
290 | case MAGIC_R: |
350 | case MAGIC_R: |
|
|
351 | handle_MAGIC_R: |
291 | if (!storable_mstore) |
352 | if (!storable_mstore) |
292 | need_storable (); |
353 | need_storable (); |
293 | |
354 | |
294 | PUSHMARK (SP); |
355 | PUSHMARK (SP); |
295 | XPUSHs (sv); |
356 | XPUSHs (sv); |
… | |
… | |
298 | if (1 != call_sv ((SV *)storable_mretrieve, G_SCALAR)) |
359 | if (1 != call_sv ((SV *)storable_mretrieve, G_SCALAR)) |
299 | croak ("Storable::mstore didn't return a single scalar"); |
360 | croak ("Storable::mstore didn't return a single scalar"); |
300 | |
361 | |
301 | SPAGAIN; |
362 | SPAGAIN; |
302 | |
363 | |
303 | /*XPUSHs (POPs); this is a nop, hopefully */ |
364 | if (deref) |
|
|
365 | { |
|
|
366 | SETs (sv_2mortal (SvREFCNT_inc (SvRV (TOPs)))); |
|
|
367 | |
|
|
368 | if (SvPVX (sv)[0] == MAGIC_R) |
|
|
369 | SvPVX (sv)[0] = MAGIC_R_deref; |
|
|
370 | } |
|
|
371 | else |
|
|
372 | SETs (sv_2mortal (newSVsv (TOPs))); |
304 | |
373 | |
305 | break; |
374 | break; |
306 | |
375 | |
307 | default: |
376 | default: |
308 | croak ("Compress::LZF::sthaw(): invalid data, maybe you need a newer version of Compress::LZF?"); |
377 | croak ("Compress::LZF::sthaw(): invalid data, maybe you need a newer version of Compress::LZF?"); |
309 | } |
378 | } |
310 | } |
379 | } |
311 | else |
380 | else |
312 | XPUSHs (sv_2mortal (SvREFCNT_inc (sv))); |
381 | XPUSHs (sv_2mortal (newSVsv (sv))); |
|
|
382 | |