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28 | #define MAGIC_R_deref 6 /* storable (NO reference, freeze) */ |
28 | #define MAGIC_R_deref 6 /* storable (NO reference, freeze) */ |
29 | #define MAGIC_HI 7 /* room for one higher storable major */ |
29 | #define MAGIC_HI 7 /* room for one higher storable major */ |
30 | |
30 | |
31 | #define IN_RANGE(v,l,h) ((unsigned int)((unsigned)(v) - (unsigned)(l)) <= (unsigned)(h) - (unsigned)(l)) |
31 | #define IN_RANGE(v,l,h) ((unsigned int)((unsigned)(v) - (unsigned)(l)) <= (unsigned)(h) - (unsigned)(l)) |
32 | |
32 | |
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33 | static SV *serializer_package, *serializer_mstore, *serializer_mretrieve; |
33 | static CV *storable_mstore, *storable_mretrieve; |
34 | static CV *storable_mstore, *storable_mretrieve; |
34 | |
35 | |
35 | static SV * |
36 | static SV * |
36 | compress_sv (SV *data, char cprepend, int uprepend) |
37 | compress_sv (SV *data, char cprepend, int uprepend) |
37 | { |
38 | { |
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162 | usize = (usize << 6) | (*src++ & 0x3f); |
163 | usize = (usize << 6) | (*src++ & 0x3f); |
163 | usize = (usize << 6) | (*src++ & 0x3f); |
164 | usize = (usize << 6) | (*src++ & 0x3f); |
164 | usize = (usize << 6) | (*src++ & 0x3f); |
165 | usize = (usize << 6) | (*src++ & 0x3f); |
165 | } |
166 | } |
166 | else |
167 | else |
167 | croak ("compressed data corrupted"); |
168 | croak ("compressed data corrupted (invalid length)"); |
168 | |
169 | |
169 | ret = NEWSV (0, usize); |
170 | ret = NEWSV (0, usize); |
170 | SvPOK_only (ret); |
171 | SvPOK_only (ret); |
171 | dst = SvPVX (ret); |
172 | dst = SvPVX (ret); |
172 | |
173 | |
173 | if (lzf_decompress (src, csize, dst, usize) != usize) |
174 | if (lzf_decompress (src, csize, dst, usize) != usize) |
174 | croak ("compressed data corrupted", csize, skip, usize); |
175 | croak ("compressed data corrupted (size mismatch)", csize, skip, usize); |
175 | } |
176 | } |
176 | else |
177 | else |
177 | { |
178 | { |
178 | usize = csize - 1; |
179 | usize = csize - 1; |
179 | ret = NEWSV (0, usize); |
180 | ret = NEWSV (0, usize); |
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192 | |
193 | |
193 | static void |
194 | static void |
194 | need_storable(void) |
195 | need_storable(void) |
195 | { |
196 | { |
196 | #if PATCHLEVEL < 6 |
197 | #if PATCHLEVEL < 6 |
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198 | char req[8192]; |
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199 | sprintf (req, "require %s;", SvPV_nolen (serializer_package)); |
197 | perl_eval_pv ("require Storable;", 1); |
200 | perl_eval_pv (req, 1); |
198 | #else |
201 | #else |
199 | load_module (PERL_LOADMOD_NOIMPORT, newSVpv ("Storable", 0), Nullsv); |
202 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
200 | #endif |
203 | #endif |
201 | |
204 | |
202 | storable_mstore = GvCV (gv_fetchpv ("Storable::mstore" , TRUE, SVt_PVCV)); |
205 | storable_mstore = GvCV (gv_fetchpv (SvPV_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
203 | storable_mretrieve = GvCV (gv_fetchpv ("Storable::mretrieve", TRUE, SVt_PVCV)); |
206 | storable_mretrieve = GvCV (gv_fetchpv (SvPV_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
204 | } |
207 | } |
205 | |
208 | |
206 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
209 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
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210 | |
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211 | BOOT: |
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212 | serializer_package = newSVpv ("Storable", 0); |
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213 | serializer_mstore = newSVpv ("Storable::mstore", 0); |
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214 | serializer_mretrieve = newSVpv ("Storable::mretrieve", 0); |
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215 | |
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216 | void |
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217 | set_serializer(package, mstore, mretrieve) |
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218 | SV * package |
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219 | SV * mstore |
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220 | SV * mretrieve |
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221 | PROTOTYPE: $$$ |
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222 | PPCODE: |
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223 | SvSetSV (serializer_package , package ); |
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224 | SvSetSV (serializer_mstore , mstore ); |
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225 | SvSetSV (serializer_mretrieve, mretrieve); |
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226 | storable_mstore = |
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227 | storable_mretrieve = 0; |
207 | |
228 | |
208 | void |
229 | void |
209 | compress(data) |
230 | compress(data) |
210 | SV * data |
231 | SV * data |
211 | PROTOTYPE: $ |
232 | PROTOTYPE: $ |
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230 | |
251 | |
231 | SvGETMAGIC (sv); |
252 | SvGETMAGIC (sv); |
232 | |
253 | |
233 | if (!SvOK (sv)) |
254 | if (!SvOK (sv)) |
234 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
255 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
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256 | else if (SvROK (sv) |
235 | else if (SvTYPE(sv) != SVt_IV |
257 | || (SvTYPE(sv) != SVt_IV |
236 | && SvTYPE(sv) != SVt_NV |
258 | && SvTYPE(sv) != SVt_NV |
237 | && SvTYPE(sv) != SVt_PV |
259 | && SvTYPE(sv) != SVt_PV |
238 | && SvTYPE(sv) != SVt_PVMG+99999) /* mstore */ |
260 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
239 | { |
261 | { |
240 | int deref = !SvROK (sv); |
262 | int deref = !SvROK (sv); |
241 | |
263 | |
242 | if (!storable_mstore) |
264 | if (!storable_mstore) |
243 | need_storable (); |
265 | need_storable (); |
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265 | if (ix) /* compress */ |
287 | if (ix) /* compress */ |
266 | sv = sv_2mortal (compress_sv (sv, deref ? MAGIC_CR_deref : MAGIC_CR, -1)); |
288 | sv = sv_2mortal (compress_sv (sv, deref ? MAGIC_CR_deref : MAGIC_CR, -1)); |
267 | |
289 | |
268 | XPUSHs (sv); |
290 | XPUSHs (sv); |
269 | } |
291 | } |
270 | else if (SvTYPE (sv) == SVt_PV && IN_RANGE (SvPVX (sv)[0], MAGIC_LO, MAGIC_HI)) |
292 | 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 */ |
293 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, MAGIC_U))); /* need to prefix only */ |
272 | else if (ix == 2) /* compress always */ |
294 | else if (ix == 2) /* compress always */ |
273 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, -1))); |
295 | XPUSHs (sv_2mortal (compress_sv (sv, MAGIC_C, -1))); |
274 | else /* don't compress */ |
296 | else /* don't compress */ |
275 | XPUSHs (sv_2mortal (SvREFCNT_inc (sv))); |
297 | XPUSHs (sv_2mortal (SvREFCNT_inc (sv))); |