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 | /* try to be compatible with older perls */ |
5 | #define LZF_STANDALONE 1 |
6 | /* SvPV_nolen() macro first defined in 5.005_55 */ |
6 | #define LZF_STATE_ARG 1 |
7 | /* this is slow, not threadsafe, but works */ |
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8 | #include "patchlevel.h" |
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9 | #if (PATCHLEVEL == 4) || ((PATCHLEVEL == 5) && (SUBVERSION < 55)) |
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10 | static STRLEN nolen_na; |
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11 | # define SvPV_nolen(sv) SvPV ((sv), nolen_na) |
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12 | #endif |
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13 | #if PATCHLEVEL < 6 |
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14 | # define call_sv perl_call_sv |
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15 | #endif |
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16 | |
7 | |
17 | #include "lzf_c.c" |
8 | #include "lzf_c.c" |
18 | #include "lzf_d.c" |
9 | #include "lzf_d.c" |
19 | |
10 | |
20 | /* we re-use the storable header for our purposes */ |
11 | /* we re-use the storable header for our purposes */ |
… | |
… | |
41 | #endif |
32 | #endif |
42 | |
33 | |
43 | static SV * |
34 | static SV * |
44 | compress_sv (SV *data, char cprepend, int uprepend) |
35 | compress_sv (SV *data, char cprepend, int uprepend) |
45 | { |
36 | { |
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37 | LZF_STATE *state; |
46 | STRLEN usize, csize; |
38 | STRLEN usize, csize; |
47 | char *src = (char *)SvPV (data, usize); |
39 | char *src = (char *)SvPVbyte (data, usize); |
48 | |
40 | |
49 | if (usize) |
41 | if (usize) |
50 | { |
42 | { |
51 | SV *ret = NEWSV (0, usize + 1); |
43 | SV *ret = NEWSV (0, usize + 1); |
52 | unsigned char *dst; |
44 | unsigned char *dst; |
… | |
… | |
98 | dst[skip++] = (( usize & 0x3f) | 0x80); |
90 | dst[skip++] = (( usize & 0x3f) | 0x80); |
99 | } |
91 | } |
100 | else |
92 | else |
101 | croak ("compress can only compress up to %ld bytes", 0x7fffffffL); |
93 | croak ("compress can only compress up to %ld bytes", 0x7fffffffL); |
102 | |
94 | |
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95 | New (0, state, 1, LZF_STATE); |
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96 | if (!state) |
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97 | croak ("Compress::LZF unable to allocate memory for compression state"); |
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98 | |
103 | /* 11 bytes is the smallest compressible string */ |
99 | /* 11 bytes is the smallest compressible string */ |
104 | csize = usize < 11 ? 0 : |
100 | csize = usize < 11 ? 0 : |
105 | lzf_compress (src, usize, |
101 | lzf_compress (src, usize, dst + skip, usize - skip, *state); |
106 | dst + skip, |
102 | |
107 | usize - skip); |
103 | Safefree (state); |
108 | |
104 | |
109 | if (csize) |
105 | if (csize) |
110 | { |
106 | { |
111 | SvCUR_set (ret, csize + skip); |
107 | SvCUR_set (ret, csize + skip); |
112 | } |
108 | } |
… | |
… | |
132 | |
128 | |
133 | static SV * |
129 | static SV * |
134 | decompress_sv (SV *data, int skip) |
130 | decompress_sv (SV *data, int skip) |
135 | { |
131 | { |
136 | STRLEN usize, csize; |
132 | STRLEN usize, csize; |
137 | unsigned char *src = (unsigned char *)SvPV (data, csize) + skip; |
133 | unsigned char *src = (unsigned char *)SvPVbyte (data, csize) + skip; |
138 | |
134 | |
139 | if (csize) |
135 | if (csize) |
140 | { |
136 | { |
141 | void *dst; |
137 | void *dst; |
142 | SV *ret; |
138 | SV *ret; |
… | |
… | |
224 | } |
220 | } |
225 | |
221 | |
226 | static void |
222 | static void |
227 | need_storable(void) |
223 | need_storable(void) |
228 | { |
224 | { |
229 | #if PATCHLEVEL < 6 |
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230 | char req[8192]; |
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231 | sprintf (req, "require %s;", SvPV_nolen (serializer_package)); |
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232 | perl_eval_pv (req, 1); |
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233 | #else |
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234 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
225 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
235 | #endif |
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236 | |
226 | |
237 | storable_mstore = GvCV (gv_fetchpv (SvPV_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
227 | storable_mstore = GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
238 | storable_mretrieve = GvCV (gv_fetchpv (SvPV_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
228 | storable_mretrieve = GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
239 | } |
229 | } |
240 | |
230 | |
241 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
231 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
242 | |
232 | |
243 | BOOT: |
233 | BOOT: |
… | |
… | |
284 | SvGETMAGIC (sv); |
274 | SvGETMAGIC (sv); |
285 | |
275 | |
286 | if (!SvOK (sv)) |
276 | if (!SvOK (sv)) |
287 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
277 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
288 | else if (SvROK (sv) |
278 | else if (SvROK (sv) |
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279 | || SvUTF8 (sv) |
289 | || (SvTYPE(sv) != SVt_IV |
280 | || (SvTYPE(sv) != SVt_IV |
290 | && SvTYPE(sv) != SVt_NV |
281 | && SvTYPE(sv) != SVt_NV |
291 | && SvTYPE(sv) != SVt_PV |
282 | && SvTYPE(sv) != SVt_PV |
292 | && SvTYPE(sv) != SVt_PVIV |
283 | && SvTYPE(sv) != SVt_PVIV |
293 | && SvTYPE(sv) != SVt_PVNV |
284 | && SvTYPE(sv) != SVt_PVNV |
294 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
285 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
295 | { |
286 | { |
296 | int deref = !SvROK (sv); |
287 | int deref = !SvROK (sv); |
297 | |
288 | |
298 | if (!storable_mstore) |
289 | if (!storable_mstore) |
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290 | { |
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291 | PUTBACK; |
299 | need_storable (); |
292 | need_storable (); |
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293 | SPAGAIN; |
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294 | } |
300 | |
295 | |
301 | if (deref) |
296 | if (deref) |
302 | sv = newRV_noinc (sv); |
297 | sv = newRV_noinc (sv); |
303 | |
298 | |
304 | PUSHMARK (SP); |
299 | PUSHMARK (SP); |
… | |
… | |
353 | { |
348 | { |
354 | STRLEN svlen; |
349 | STRLEN svlen; |
355 | int deref = 0; |
350 | int deref = 0; |
356 | |
351 | |
357 | SvGETMAGIC (sv); |
352 | SvGETMAGIC (sv); |
358 | if (SvPOK (sv) && IN_RANGE (SvPV (sv, svlen)[0], MAGIC_LO, MAGIC_HI)) |
353 | if (SvPOK (sv) && IN_RANGE (SvPVbyte (sv, svlen)[0], MAGIC_LO, MAGIC_HI)) |
359 | { |
354 | { |
360 | redo: |
355 | redo: |
361 | |
356 | |
362 | switch (SvPVX (sv)[0]) |
357 | switch (SvPVX (sv)[0]) |
363 | { |
358 | { |
… | |
… | |
372 | croak ("Compress::LZF::sthaw(): invalid data, maybe you need a newer version of Compress::LZF?"); |
367 | croak ("Compress::LZF::sthaw(): invalid data, maybe you need a newer version of Compress::LZF?"); |
373 | |
368 | |
374 | sv_chop (sv, SvPVX (sv) + 2); |
369 | sv_chop (sv, SvPVX (sv) + 2); |
375 | |
370 | |
376 | if (!storable_mstore) |
371 | if (!storable_mstore) |
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372 | { |
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373 | PUTBACK; |
377 | need_storable (); |
374 | need_storable (); |
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375 | SPAGAIN; |
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376 | } |
378 | |
377 | |
379 | PUSHMARK (SP); |
378 | PUSHMARK (SP); |
380 | XPUSHs (sv); |
379 | XPUSHs (sv); |
381 | PUTBACK; |
380 | PUTBACK; |
382 | |
381 | |
… | |
… | |
416 | goto redo; |
415 | goto redo; |
417 | |
416 | |
418 | case MAGIC_R: |
417 | case MAGIC_R: |
419 | handle_MAGIC_R: |
418 | handle_MAGIC_R: |
420 | if (!storable_mstore) |
419 | if (!storable_mstore) |
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420 | { |
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421 | PUTBACK; |
421 | need_storable (); |
422 | need_storable (); |
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423 | SPAGAIN; |
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424 | } |
422 | |
425 | |
423 | PUSHMARK (SP); |
426 | PUSHMARK (SP); |
424 | XPUSHs (sv); |
427 | XPUSHs (sv); |
425 | PUTBACK; |
428 | PUTBACK; |
426 | |
429 | |