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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 | |
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17 | #define HLOG 15 |
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18 | #define ULTRA_FAST 0 |
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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 |
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28 | #define MAGIC_R_deref 6 /* storable (NO reference, freeze) */ |
31 | #define MAGIC_R_deref 6 /* storable (NO reference, freeze) */ |
29 | #define MAGIC_HI 7 /* room for one higher storable major */ |
32 | #define MAGIC_HI 7 /* room for one higher storable major */ |
30 | |
33 | |
31 | #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)) |
32 | |
35 | |
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36 | static SV *serializer_package, *serializer_mstore, *serializer_mretrieve; |
33 | static CV *storable_mstore, *storable_mretrieve; |
37 | static CV *storable_mstore, *storable_mretrieve; |
34 | |
38 | |
35 | static SV * |
39 | static SV * |
36 | compress_sv (SV *data, char cprepend, int uprepend) |
40 | compress_sv (SV *data, char cprepend, int uprepend) |
37 | { |
41 | { |
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162 | usize = (usize << 6) | (*src++ & 0x3f); |
166 | usize = (usize << 6) | (*src++ & 0x3f); |
163 | usize = (usize << 6) | (*src++ & 0x3f); |
167 | usize = (usize << 6) | (*src++ & 0x3f); |
164 | usize = (usize << 6) | (*src++ & 0x3f); |
168 | usize = (usize << 6) | (*src++ & 0x3f); |
165 | } |
169 | } |
166 | else |
170 | else |
167 | croak ("compressed data corrupted"); |
171 | croak ("compressed data corrupted (invalid length)"); |
168 | |
172 | |
169 | ret = NEWSV (0, usize); |
173 | ret = NEWSV (0, usize); |
170 | SvPOK_only (ret); |
174 | SvPOK_only (ret); |
171 | dst = SvPVX (ret); |
175 | dst = SvPVX (ret); |
172 | |
176 | |
173 | if (lzf_decompress (src, csize, dst, usize) != usize) |
177 | if (lzf_decompress (src, csize, dst, usize) != usize) |
174 | croak ("compressed data corrupted", csize, skip, usize); |
178 | croak ("compressed data corrupted (size mismatch)", csize, skip, usize); |
175 | } |
179 | } |
176 | else |
180 | else |
177 | { |
181 | { |
178 | usize = csize - 1; |
182 | usize = csize - 1; |
179 | ret = NEWSV (0, usize); |
183 | ret = NEWSV (0, usize); |
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192 | |
196 | |
193 | static void |
197 | static void |
194 | need_storable(void) |
198 | need_storable(void) |
195 | { |
199 | { |
196 | #if PATCHLEVEL < 6 |
200 | #if PATCHLEVEL < 6 |
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201 | char req[8192]; |
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202 | sprintf (req, "require %s;", SvPV_nolen (serializer_package)); |
197 | perl_eval_pv ("require Storable;", 1); |
203 | perl_eval_pv (req, 1); |
198 | #else |
204 | #else |
199 | load_module (PERL_LOADMOD_NOIMPORT, newSVpv ("Storable", 0), Nullsv); |
205 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
200 | #endif |
206 | #endif |
201 | |
207 | |
202 | storable_mstore = GvCV (gv_fetchpv ("Storable::mstore" , TRUE, SVt_PVCV)); |
208 | storable_mstore = GvCV (gv_fetchpv (SvPV_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
203 | storable_mretrieve = GvCV (gv_fetchpv ("Storable::mretrieve", TRUE, SVt_PVCV)); |
209 | storable_mretrieve = GvCV (gv_fetchpv (SvPV_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
204 | } |
210 | } |
205 | |
211 | |
206 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
212 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
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213 | |
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214 | BOOT: |
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215 | serializer_package = newSVpv ("Storable", 0); |
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216 | serializer_mstore = newSVpv ("Storable::mstore", 0); |
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217 | serializer_mretrieve = newSVpv ("Storable::mretrieve", 0); |
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218 | |
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219 | void |
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220 | set_serializer(package, mstore, mretrieve) |
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221 | SV * package |
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222 | SV * mstore |
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223 | SV * mretrieve |
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224 | PROTOTYPE: $$$ |
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225 | PPCODE: |
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226 | SvSetSV (serializer_package , package ); |
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227 | SvSetSV (serializer_mstore , mstore ); |
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228 | SvSetSV (serializer_mretrieve, mretrieve); |
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229 | storable_mstore = |
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230 | storable_mretrieve = 0; |
207 | |
231 | |
208 | void |
232 | void |
209 | compress(data) |
233 | compress(data) |
210 | SV * data |
234 | SV * data |
211 | PROTOTYPE: $ |
235 | PROTOTYPE: $ |
… | |
… | |
230 | |
254 | |
231 | SvGETMAGIC (sv); |
255 | SvGETMAGIC (sv); |
232 | |
256 | |
233 | if (!SvOK (sv)) |
257 | if (!SvOK (sv)) |
234 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
258 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
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259 | else if (SvROK (sv) |
235 | else if (SvTYPE(sv) != SVt_IV |
260 | || (SvTYPE(sv) != SVt_IV |
236 | && SvTYPE(sv) != SVt_NV |
261 | && SvTYPE(sv) != SVt_NV |
237 | && SvTYPE(sv) != SVt_PV |
262 | && SvTYPE(sv) != SVt_PV |
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263 | && SvTYPE(sv) != SVt_PVIV |
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264 | && SvTYPE(sv) != SVt_PVNV |
238 | && SvTYPE(sv) != SVt_PVMG+99999) /* mstore */ |
265 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
239 | { |
266 | { |
240 | int deref = !SvROK (sv); |
267 | int deref = !SvROK (sv); |
241 | |
268 | |
242 | if (!storable_mstore) |
269 | if (!storable_mstore) |
243 | need_storable (); |
270 | need_storable (); |
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265 | if (ix) /* compress */ |
292 | if (ix) /* compress */ |
266 | sv = sv_2mortal (compress_sv (sv, deref ? MAGIC_CR_deref : MAGIC_CR, -1)); |
293 | sv = sv_2mortal (compress_sv (sv, deref ? MAGIC_CR_deref : MAGIC_CR, -1)); |
267 | |
294 | |
268 | XPUSHs (sv); |
295 | XPUSHs (sv); |
269 | } |
296 | } |
270 | else if (SvTYPE (sv) == SVt_PV && IN_RANGE (SvPVX (sv)[0], MAGIC_LO, MAGIC_HI)) |
297 | else if (SvPOKp (sv) && IN_RANGE (SvPVX (sv)[0], MAGIC_LO, MAGIC_HI)) |
271 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, MAGIC_U))); /* need to prefix only */ |
298 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, MAGIC_U))); /* need to prefix only */ |
272 | else if (ix == 2) /* compress always */ |
299 | else if (ix == 2) /* compress always */ |
273 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, -1))); |
300 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, -1))); |
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301 | else if (SvNIOK (sv)) /* don't compress */ |
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302 | { |
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303 | STRLEN len; |
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304 | char *s = SvPV (sv, len); |
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305 | XPUSHs (sv_2mortal (newSVpvn (s, len))); |
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306 | } |
274 | else /* don't compress */ |
307 | else /* don't compress */ |
275 | XPUSHs (sv_2mortal (SvREFCNT_inc (sv))); |
308 | XPUSHs (sv_2mortal (newSVsv (sv))); |
276 | |
309 | |
277 | void |
310 | void |
278 | sthaw(sv) |
311 | sthaw(sv) |
279 | SV * sv |
312 | SV * sv |
280 | PROTOTYPE: $ |
313 | PROTOTYPE: $ |
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334 | |
367 | |
335 | if (SvPVX (sv)[0] == MAGIC_R) |
368 | if (SvPVX (sv)[0] == MAGIC_R) |
336 | SvPVX (sv)[0] = MAGIC_R_deref; |
369 | SvPVX (sv)[0] = MAGIC_R_deref; |
337 | } |
370 | } |
338 | else |
371 | else |
339 | XPUSHs (POPs); /* this is a nop, hopefully */ |
372 | SETs (sv_2mortal (newSVsv (TOPs))); |
340 | |
373 | |
341 | break; |
374 | break; |
342 | |
375 | |
343 | default: |
376 | default: |
344 | 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?"); |
345 | } |
378 | } |
346 | } |
379 | } |
347 | else |
380 | else |
348 | XPUSHs (sv_2mortal (SvREFCNT_inc (sv))); |
381 | XPUSHs (sv_2mortal (newSVsv (sv))); |
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382 | |