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5 | #define LZF_STANDALONE 1 |
5 | #define LZF_STANDALONE 1 |
6 | #define LZF_STATE_ARG 1 |
6 | #define LZF_STATE_ARG 1 |
7 | |
7 | |
8 | #include "lzf_c.c" |
8 | #include "lzf_c.c" |
9 | #include "lzf_d.c" |
9 | #include "lzf_d.c" |
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|
10 | #include "lzf_c_best.c" |
10 | |
11 | |
11 | /* we re-use the storable header for our purposes */ |
12 | /* we re-use the storable header for our purposes */ |
12 | #define MAGIC_LO 0 |
13 | #define MAGIC_LO 0 |
13 | #define MAGIC_U 0 /* uncompressed data follows */ |
14 | #define MAGIC_U 0 /* uncompressed data follows */ |
14 | #define MAGIC_C 1 /* compressed data follows */ |
15 | #define MAGIC_C 1 /* compressed data follows */ |
… | |
… | |
30 | #else |
31 | #else |
31 | # define MAX_LENGTH ((Size_t) 0x8000000L) |
32 | # define MAX_LENGTH ((Size_t) 0x8000000L) |
32 | #endif |
33 | #endif |
33 | |
34 | |
34 | static SV * |
35 | static SV * |
35 | compress_sv (SV *data, char cprepend, int uprepend) |
36 | compress_sv (SV *data, char cprepend, int uprepend, int best) |
36 | { |
37 | { |
37 | LZF_STATE *state; |
38 | LZF_STATE *state; |
38 | STRLEN usize, csize; |
39 | STRLEN usize, csize; |
39 | char *src = (char *)SvPVbyte (data, usize); |
40 | char *src = (char *)SvPVbyte (data, usize); |
40 | |
41 | |
… | |
… | |
52 | |
53 | |
53 | if (usize <= 0x7f) |
54 | if (usize <= 0x7f) |
54 | { |
55 | { |
55 | dst[skip++] = usize; |
56 | dst[skip++] = usize; |
56 | } |
57 | } |
57 | else if (usize <= 0x7ff) |
58 | else if (usize <= 0x7ff) |
58 | { |
59 | { |
59 | dst[skip++] = (( usize >> 6) | 0xc0); |
60 | dst[skip++] = (( usize >> 6) | 0xc0); |
60 | dst[skip++] = (( usize & 0x3f) | 0x80); |
61 | dst[skip++] = (( usize & 0x3f) | 0x80); |
61 | } |
62 | } |
62 | else if (usize <= 0xffff) |
63 | else if (usize <= 0xffff) |
… | |
… | |
96 | if (!state) |
97 | if (!state) |
97 | croak ("Compress::LZF unable to allocate memory for compression state"); |
98 | croak ("Compress::LZF unable to allocate memory for compression state"); |
98 | |
99 | |
99 | /* 11 bytes is the smallest compressible string */ |
100 | /* 11 bytes is the smallest compressible string */ |
100 | csize = usize < 11 ? 0 : |
101 | csize = usize < 11 ? 0 : |
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|
102 | (best ? lzf_compress_best (src, usize, dst + skip, usize - skip) |
101 | lzf_compress (src, usize, dst + skip, usize - skip, *state); |
103 | : lzf_compress (src, usize, dst + skip, usize - skip, *state)); |
102 | |
104 | |
103 | Safefree (state); |
105 | Safefree (state); |
104 | |
106 | |
105 | if (csize) |
107 | if (csize) |
106 | { |
108 | { |
… | |
… | |
218 | else |
220 | else |
219 | return newSVpvn ("", 0); |
221 | return newSVpvn ("", 0); |
220 | } |
222 | } |
221 | |
223 | |
222 | static void |
224 | static void |
223 | need_storable(void) |
225 | need_storable (void) |
224 | { |
226 | { |
225 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
227 | eval_sv (sv_2mortal (newSVpvf ("require %s", SvPVbyte_nolen (serializer_package))), G_VOID | G_DISCARD); |
226 | |
228 | |
227 | storable_mstore = GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
229 | storable_mstore = (CV *)SvREFCNT_inc (GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mstore ), TRUE, SVt_PVCV))); |
228 | storable_mretrieve = GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
230 | storable_mretrieve = (CV *)SvREFCNT_inc (GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mretrieve), TRUE, SVt_PVCV))); |
229 | } |
231 | } |
230 | |
232 | |
231 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
233 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
232 | |
234 | |
233 | BOOT: |
235 | BOOT: |
… | |
… | |
243 | PROTOTYPE: $$$ |
245 | PROTOTYPE: $$$ |
244 | PPCODE: |
246 | PPCODE: |
245 | SvSetSV (serializer_package , package ); |
247 | SvSetSV (serializer_package , package ); |
246 | SvSetSV (serializer_mstore , mstore ); |
248 | SvSetSV (serializer_mstore , mstore ); |
247 | SvSetSV (serializer_mretrieve, mretrieve); |
249 | SvSetSV (serializer_mretrieve, mretrieve); |
248 | storable_mstore = |
250 | SvREFCNT_dec (storable_mstore ); storable_mstore = 0; |
249 | storable_mretrieve = 0; |
251 | SvREFCNT_dec (storable_mretrieve); storable_mretrieve = 0; |
250 | |
252 | |
251 | void |
253 | void |
252 | compress(data) |
254 | compress(data) |
253 | SV * data |
255 | SV * data |
|
|
256 | ALIAS: |
|
|
257 | compress_best = 1 |
254 | PROTOTYPE: $ |
258 | PROTOTYPE: $ |
255 | PPCODE: |
259 | PPCODE: |
256 | XPUSHs (sv_2mortal (compress_sv (data, 0, MAGIC_U))); |
260 | XPUSHs (sv_2mortal (compress_sv (data, 0, MAGIC_U, ix))); |
257 | |
261 | |
258 | void |
262 | void |
259 | decompress(data) |
263 | decompress(data) |
260 | SV * data |
264 | SV * data |
261 | PROTOTYPE: $ |
265 | PROTOTYPE: $ |
… | |
… | |
264 | |
268 | |
265 | void |
269 | void |
266 | sfreeze(sv) |
270 | sfreeze(sv) |
267 | SV * sv |
271 | SV * sv |
268 | ALIAS: |
272 | ALIAS: |
|
|
273 | sfreeze = 0 |
269 | sfreeze_cr = 1 |
274 | sfreeze_cr = 1 |
270 | sfreeze_c = 2 |
275 | sfreeze_c = 2 |
|
|
276 | sfreeze_best = 4 |
|
|
277 | sfreeze_cr_best = 5 |
|
|
278 | sfreeze_c_best = 6 |
271 | PROTOTYPE: $ |
279 | PROTOTYPE: $ |
272 | PPCODE: |
280 | PPCODE: |
|
|
281 | { |
|
|
282 | int best = ix & 4; |
|
|
283 | ix &= 3; |
273 | |
284 | |
274 | SvGETMAGIC (sv); |
285 | SvGETMAGIC (sv); |
275 | |
286 | |
276 | if (!SvOK (sv)) |
287 | if (!SvOK (sv)) |
277 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
288 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
… | |
… | |
283 | && SvTYPE(sv) != SVt_PVIV |
294 | && SvTYPE(sv) != SVt_PVIV |
284 | && SvTYPE(sv) != SVt_PVNV |
295 | && SvTYPE(sv) != SVt_PVNV |
285 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
296 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
286 | { |
297 | { |
287 | int deref = !SvROK (sv); |
298 | int deref = !SvROK (sv); |
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|
299 | char *pv; |
288 | |
300 | |
289 | if (!storable_mstore) |
301 | if (!storable_mstore) |
290 | { |
302 | { |
291 | PUTBACK; |
303 | PUTBACK; |
292 | need_storable (); |
304 | need_storable (); |
… | |
… | |
299 | PUSHMARK (SP); |
311 | PUSHMARK (SP); |
300 | XPUSHs (sv); |
312 | XPUSHs (sv); |
301 | PUTBACK; |
313 | PUTBACK; |
302 | |
314 | |
303 | if (1 != call_sv ((SV *)storable_mstore, G_SCALAR)) |
315 | if (1 != call_sv ((SV *)storable_mstore, G_SCALAR)) |
304 | croak ("Storable::mstore didn't return a single scalar"); |
316 | croak ("%s didn't return a single scalar", SvPVbyte_nolen (serializer_mstore)); |
305 | |
317 | |
306 | SPAGAIN; |
318 | SPAGAIN; |
307 | |
319 | |
308 | sv = POPs; |
320 | sv = POPs; |
|
|
321 | pv = SvPV_nolen (sv); |
309 | |
322 | |
310 | if (SvPVX (sv)[0] == MAGIC_R) |
323 | if (*pv == MAGIC_R) |
311 | { |
324 | { |
312 | if (deref) |
325 | if (deref) |
313 | SvPVX (sv)[0] = MAGIC_R_deref; |
326 | *pv = MAGIC_R_deref; |
314 | } |
327 | } |
315 | else |
328 | else |
316 | { |
329 | { |
317 | char pfx[2]; |
330 | char pfx[2]; |
318 | |
331 | |
… | |
… | |
321 | |
334 | |
322 | sv_insert (sv, 0, 0, pfx, 2); |
335 | sv_insert (sv, 0, 0, pfx, 2); |
323 | } |
336 | } |
324 | |
337 | |
325 | if (ix) /* compress */ |
338 | if (ix) /* compress */ |
326 | sv = sv_2mortal (compress_sv (sv, deref ? MAGIC_CR_deref : MAGIC_CR, -1)); |
339 | sv = sv_2mortal (compress_sv (sv, deref ? MAGIC_CR_deref : MAGIC_CR, -1, best)); |
327 | |
340 | |
328 | XPUSHs (sv); |
341 | XPUSHs (sv); |
329 | } |
342 | } |
330 | else if (SvPOKp (sv) && IN_RANGE (SvPVX (sv)[0], MAGIC_LO, MAGIC_HI)) |
343 | else if (SvPOKp (sv) && IN_RANGE (SvPVX (sv)[0], MAGIC_LO, MAGIC_HI)) |
331 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, MAGIC_U))); /* need to prefix only */ |
344 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, MAGIC_U, best))); /* need to prefix only */ |
332 | else if (ix == 2) /* compress always */ |
345 | else if (ix == 2) /* compress always */ |
333 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, -1))); |
346 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, -1, best))); |
334 | else if (SvNIOK (sv)) /* don't compress */ |
347 | else if (SvNIOK (sv)) /* don't compress */ |
335 | { |
348 | { |
336 | STRLEN len; |
349 | STRLEN len; |
337 | char *s = SvPV (sv, len); |
350 | char *s = SvPV (sv, len); |
338 | XPUSHs (sv_2mortal (newSVpvn (s, len))); |
351 | XPUSHs (sv_2mortal (newSVpvn (s, len))); |
339 | } |
352 | } |
340 | else /* don't compress */ |
353 | else /* don't compress */ |
341 | XPUSHs (sv_2mortal (newSVsv (sv))); |
354 | XPUSHs (sv_2mortal (newSVsv (sv))); |
|
|
355 | } |
342 | |
356 | |
343 | void |
357 | void |
344 | sthaw(sv) |
358 | sthaw(sv) |
345 | SV * sv |
359 | SV * sv |
346 | PROTOTYPE: $ |
360 | PROTOTYPE: $ |
… | |
… | |
378 | PUSHMARK (SP); |
392 | PUSHMARK (SP); |
379 | XPUSHs (sv); |
393 | XPUSHs (sv); |
380 | PUTBACK; |
394 | PUTBACK; |
381 | |
395 | |
382 | if (1 != call_sv ((SV *)storable_mretrieve, G_SCALAR)) |
396 | if (1 != call_sv ((SV *)storable_mretrieve, G_SCALAR)) |
383 | croak ("Storable::mstore didn't return a single scalar"); |
397 | croak ("%s didn't return a single scalar", SvPVbyte_nolen (serializer_mretrieve)); |
384 | |
398 | |
385 | SPAGAIN; |
399 | SPAGAIN; |
386 | |
400 | |
387 | if (deref) |
401 | if (deref) |
388 | SETs (sv_2mortal (SvREFCNT_inc (SvRV (TOPs)))); |
402 | SETs (sv_2mortal (SvREFCNT_inc (SvRV (TOPs)))); |
… | |
… | |
426 | PUSHMARK (SP); |
440 | PUSHMARK (SP); |
427 | XPUSHs (sv); |
441 | XPUSHs (sv); |
428 | PUTBACK; |
442 | PUTBACK; |
429 | |
443 | |
430 | if (1 != call_sv ((SV *)storable_mretrieve, G_SCALAR)) |
444 | if (1 != call_sv ((SV *)storable_mretrieve, G_SCALAR)) |
431 | croak ("Storable::mstore didn't return a single scalar"); |
445 | croak ("%s didn't return a single scalar", SvPVbyte_nolen (serializer_mretrieve)); |
432 | |
446 | |
433 | SPAGAIN; |
447 | SPAGAIN; |
434 | |
448 | |
435 | if (deref) |
449 | if (deref) |
436 | { |
450 | { |