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bdb7fd9f RGS |
1 | /* Filename: Bzip2.xs |
2 | * Author : Paul Marquess, <pmqs@cpan.org> | |
3 | * Created : 5th October 2005 | |
4 | * Version : 2.000 | |
5 | * | |
9b5fd1d4 | 6 | * Copyright (c) 2005-2010 Paul Marquess. All rights reserved. |
bdb7fd9f RGS |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the same terms as Perl itself. | |
9 | * | |
10 | */ | |
11 | ||
12 | ||
13 | #include "EXTERN.h" | |
14 | #include "perl.h" | |
15 | #include "XSUB.h" | |
16 | ||
17 | #include "bzlib.h" | |
18 | ||
19 | #ifdef USE_PPPORT_H | |
20 | # define NEED_sv_2pv_nolen | |
21 | # include "ppport.h" | |
22 | #endif | |
23 | ||
24 | #if PERL_REVISION == 5 && (PERL_VERSION < 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) | |
25 | ||
26 | # ifdef SvPVbyte_force | |
27 | # undef SvPVbyte_force | |
28 | # endif | |
29 | ||
30 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) | |
31 | ||
32 | #endif | |
33 | ||
34 | #ifndef SvPVbyte_nolen | |
35 | # define SvPVbyte_nolen SvPV_nolen | |
36 | #endif | |
37 | ||
38 | ||
39 | #if PERL_REVISION == 5 && (PERL_VERSION >= 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) | |
40 | # define UTF8_AVAILABLE | |
41 | #endif | |
42 | ||
43 | typedef int DualType ; | |
44 | typedef int int_undef ; | |
45 | ||
46 | typedef unsigned long uLong; | |
47 | typedef unsigned int uInt; | |
48 | ||
49 | typedef struct di_stream { | |
50 | int flags ; | |
51 | #define FLAG_APPEND_OUTPUT 1 | |
52 | #define FLAG_CONSUME_INPUT 8 | |
ea6efd2c | 53 | #define FLAG_LIMIT_OUTPUT 16 |
bdb7fd9f RGS |
54 | bz_stream stream; |
55 | uInt bufsize; | |
56 | int last_error ; | |
57 | uLong bytesInflated ; | |
58 | uLong compressedBytes ; | |
59 | uLong uncompressedBytes ; | |
60 | ||
61 | } di_stream; | |
62 | ||
63 | typedef di_stream * deflateStream ; | |
64 | typedef di_stream * Compress__Raw__Bzip2 ; | |
65 | ||
66 | typedef di_stream * inflateStream ; | |
67 | typedef di_stream * Compress__Raw__Bunzip2 ; | |
68 | ||
69 | #define COMPRESS_CLASS "Compress::Raw::Bzip2" | |
70 | #define UNCOMPRESS_CLASS "Compress::Raw::Bunzip2" | |
71 | ||
72 | #define ZMALLOC(to, typ) ((to = (typ *)safemalloc(sizeof(typ))), \ | |
73 | Zero(to,1,typ)) | |
74 | ||
75 | ||
76 | /* static const char * const my_z_errmsg[] = { */ | |
77 | static const char my_z_errmsg[][32] = { | |
78 | "End of Stream", /* BZ_STREAM_END 4 */ | |
79 | "Finish OK", /* BZ_FINISH_OK 3 */ | |
80 | "Flush OK", /* BZ_FLUSH_OK 2 */ | |
81 | "Run OK", /* BZ_RUN_OK 1 */ | |
82 | "", /* BZ_OK 0 */ | |
83 | "Sequence Error", /* BZ_SEQUENCE_ERROR (-1) */ | |
84 | "Param Error", /* BZ_PARAM_ERROR (-2) */ | |
85 | "Memory Error", /* BZ_MEM_ERROR (-3) */ | |
86 | "Data Error", /* BZ_DATA_ERROR (-4) */ | |
87 | "Magic Error", /* BZ_DATA_ERROR_MAGIC (-5) */ | |
88 | "IO Error", /* BZ_IO_ERROR (-6) */ | |
89 | "Unexpected EOF", /* BZ_UNEXPECTED_EOF (-7) */ | |
90 | "Output Buffer Full", /* BZ_OUTBUFF_FULL (-8) */ | |
91 | "Config Error", /* BZ_CONFIG_ERROR (-9) */ | |
92 | ""}; | |
93 | ||
94 | #define setDUALstatus(var, err) \ | |
95 | sv_setnv(var, (double)err) ; \ | |
96 | sv_setpv(var, ((err) ? GetErrorString(err) : "")) ; \ | |
97 | SvNOK_on(var); | |
98 | ||
99 | ||
100 | #if defined(__SYMBIAN32__) | |
101 | # define NO_WRITEABLE_DATA | |
102 | #endif | |
103 | ||
104 | #define TRACE_DEFAULT 0 | |
105 | ||
106 | #ifdef NO_WRITEABLE_DATA | |
107 | # define trace TRACE_DEFAULT | |
108 | #else | |
109 | static int trace = TRACE_DEFAULT ; | |
110 | #endif | |
111 | ||
112 | /* Dodge PerlIO hiding of these functions. */ | |
113 | #undef printf | |
114 | ||
115 | #if 1 | |
116 | #define getInnerObject(x) (*av_fetch((AV*)SvRV(x), 0, FALSE)) | |
117 | #else | |
118 | #define getInnerObject(x) ((SV*)SvRV(sv)) | |
119 | #endif | |
120 | ||
121 | #ifdef BZ_NO_STDIO | |
122 | void bz_internal_error(int errorcode) | |
123 | { | |
124 | croak("bz_internal_error %d\n", errorcode); | |
125 | } | |
126 | #endif | |
127 | ||
128 | static char * | |
129 | #ifdef CAN_PROTOTYPE | |
130 | GetErrorString(int error_no) | |
131 | #else | |
132 | GetErrorString(error_no) | |
133 | int error_no ; | |
134 | #endif | |
135 | { | |
136 | dTHX; | |
137 | char * errstr ; | |
138 | ||
139 | #if 0 | |
140 | if (error_no == BZ_ERRNO) { | |
141 | errstr = Strerror(errno) ; | |
142 | } | |
143 | else | |
144 | #endif | |
145 | errstr = (char*) my_z_errmsg[4 - error_no]; | |
146 | ||
147 | return errstr ; | |
148 | } | |
149 | ||
150 | static void | |
151 | #ifdef CAN_PROTOTYPE | |
152 | DispHex(void * ptr, int length) | |
153 | #else | |
154 | DispHex(ptr, length) | |
155 | void * ptr; | |
156 | int length; | |
157 | #endif | |
158 | { | |
159 | char * p = (char*)ptr; | |
160 | int i; | |
161 | for (i = 0; i < length; ++i) { | |
162 | printf(" %02x", 0xFF & *(p+i)); | |
163 | } | |
164 | } | |
165 | ||
166 | ||
167 | static void | |
168 | #ifdef CAN_PROTOTYPE | |
169 | DispStream(di_stream * s, char * message) | |
170 | #else | |
171 | DispStream(s, message) | |
172 | di_stream * s; | |
173 | char * message; | |
174 | #endif | |
175 | { | |
176 | ||
177 | #if 0 | |
178 | if (! trace) | |
179 | return ; | |
180 | #endif | |
181 | ||
182 | #define EnDis(f) (s->flags & f ? "Enabled" : "Disabled") | |
183 | ||
184 | printf("DispStream 0x%p", s) ; | |
185 | if (message) | |
ea6efd2c | 186 | printf(" - %s \n", message) ; |
bdb7fd9f RGS |
187 | printf("\n") ; |
188 | ||
189 | if (!s) { | |
190 | printf(" stream pointer is NULL\n"); | |
191 | } | |
192 | else { | |
193 | printf(" stream 0x%p\n", &(s->stream)); | |
194 | printf(" opaque 0x%p\n", s->stream.opaque); | |
ea6efd2c | 195 | printf(" state 0x%p\n", s->stream.state ); |
bdb7fd9f RGS |
196 | printf(" next_in 0x%p", s->stream.next_in); |
197 | if (s->stream.next_in){ | |
198 | printf(" =>"); | |
199 | DispHex(s->stream.next_in, 4); | |
200 | } | |
201 | printf("\n"); | |
202 | ||
203 | printf(" next_out 0x%p", s->stream.next_out); | |
204 | if (s->stream.next_out){ | |
205 | printf(" =>"); | |
206 | DispHex(s->stream.next_out, 4); | |
207 | } | |
208 | printf("\n"); | |
209 | ||
210 | printf(" avail_in %lu\n", (unsigned long)s->stream.avail_in); | |
211 | printf(" avail_out %lu\n", (unsigned long)s->stream.avail_out); | |
212 | printf(" bufsize %lu\n", (unsigned long)s->bufsize); | |
ea6efd2c MB |
213 | printf(" total_in_lo32 %u\n", s->stream.total_in_lo32); |
214 | printf(" total_in_hi32 %u\n", s->stream.total_in_hi32); | |
215 | printf(" total_out_lo32 %u\n", s->stream.total_out_lo32); | |
216 | printf(" total_out_hi32 %u\n", s->stream.total_out_hi32); | |
bdb7fd9f RGS |
217 | printf(" flags 0x%x\n", s->flags); |
218 | printf(" APPEND %s\n", EnDis(FLAG_APPEND_OUTPUT)); | |
219 | printf(" CONSUME %s\n", EnDis(FLAG_CONSUME_INPUT)); | |
ea6efd2c | 220 | printf(" LIMIT %s\n", EnDis(FLAG_LIMIT_OUTPUT)); |
bdb7fd9f RGS |
221 | |
222 | printf("\n"); | |
223 | ||
224 | } | |
225 | } | |
226 | ||
227 | static di_stream * | |
228 | #ifdef CAN_PROTOTYPE | |
229 | InitStream(void) | |
230 | #else | |
231 | InitStream() | |
232 | #endif | |
233 | { | |
234 | di_stream *s ; | |
235 | ||
236 | ZMALLOC(s, di_stream) ; | |
237 | ||
238 | return s ; | |
239 | ||
240 | } | |
241 | ||
242 | static void | |
243 | #ifdef CAN_PROTOTYPE | |
244 | PostInitStream(di_stream * s, int flags) | |
245 | #else | |
246 | PostInitStream(s, flags) | |
247 | di_stream *s ; | |
248 | int flags ; | |
249 | #endif | |
250 | { | |
251 | s->bufsize = 1024 * 16 ; | |
252 | s->last_error = 0 ; | |
253 | s->flags = flags ; | |
254 | } | |
255 | ||
256 | ||
257 | static SV* | |
258 | #ifdef CAN_PROTOTYPE | |
259 | deRef(SV * sv, const char * string) | |
260 | #else | |
261 | deRef(sv, string) | |
262 | SV * sv ; | |
263 | char * string; | |
264 | #endif | |
265 | { | |
266 | dTHX; | |
267 | SvGETMAGIC(sv); | |
268 | ||
269 | if (SvROK(sv)) { | |
270 | sv = SvRV(sv) ; | |
271 | SvGETMAGIC(sv); | |
272 | switch(SvTYPE(sv)) { | |
273 | case SVt_PVAV: | |
274 | case SVt_PVHV: | |
275 | case SVt_PVCV: | |
276 | croak("%s: buffer parameter is not a SCALAR reference", string); | |
776304fb PM |
277 | default: |
278 | break; | |
bdb7fd9f RGS |
279 | } |
280 | if (SvROK(sv)) | |
281 | croak("%s: buffer parameter is a reference to a reference", string) ; | |
282 | } | |
283 | ||
284 | if (!SvOK(sv)) { | |
285 | sv = newSVpv("", 0); | |
286 | } | |
287 | ||
288 | return sv ; | |
289 | } | |
290 | ||
291 | static SV* | |
292 | #ifdef CAN_PROTOTYPE | |
293 | deRef_l(SV * sv, const char * string) | |
294 | #else | |
295 | deRef_l(sv, string) | |
296 | SV * sv ; | |
297 | char * string ; | |
298 | #endif | |
299 | { | |
300 | dTHX; | |
301 | bool wipe = 0 ; | |
302 | ||
303 | SvGETMAGIC(sv); | |
304 | wipe = ! SvOK(sv) ; | |
305 | ||
306 | if (SvROK(sv)) { | |
307 | sv = SvRV(sv) ; | |
308 | SvGETMAGIC(sv); | |
309 | wipe = ! SvOK(sv) ; | |
310 | ||
311 | switch(SvTYPE(sv)) { | |
312 | case SVt_PVAV: | |
313 | case SVt_PVHV: | |
314 | case SVt_PVCV: | |
315 | croak("%s: buffer parameter is not a SCALAR reference", string); | |
776304fb PM |
316 | default: |
317 | break; | |
bdb7fd9f RGS |
318 | } |
319 | if (SvROK(sv)) | |
320 | croak("%s: buffer parameter is a reference to a reference", string) ; | |
321 | } | |
322 | ||
323 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) | |
324 | croak("%s: buffer parameter is read-only", string); | |
325 | ||
326 | SvUPGRADE(sv, SVt_PV); | |
327 | ||
328 | if (wipe) | |
329 | SvCUR_set(sv, 0); | |
330 | ||
331 | SvOOK_off(sv); | |
332 | SvPOK_only(sv); | |
333 | ||
334 | return sv ; | |
335 | } | |
336 | ||
337 | ||
338 | #include "constants.h" | |
339 | ||
340 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 PREFIX = Zip_ | |
341 | ||
342 | REQUIRE: 1.924 | |
343 | PROTOTYPES: DISABLE | |
344 | ||
345 | INCLUDE: constants.xs | |
346 | ||
347 | BOOT: | |
c14f59c3 PM |
348 | #ifndef NO_WRITEABLE_DATA |
349 | trace = TRACE_DEFAULT ; | |
350 | #endif | |
bdb7fd9f RGS |
351 | /* Check this version of bzip2 is == 1 */ |
352 | if (BZ2_bzlibVersion()[0] != '1') | |
353 | croak(COMPRESS_CLASS " needs bzip2 version 1.x, you have %s\n", BZ2_bzlibVersion()) ; | |
354 | ||
355 | ||
356 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 | |
357 | ||
358 | #define bzlibversion() BZ2_bzlibVersion() | |
359 | const char * | |
360 | bzlibversion() | |
361 | ||
362 | void | |
c14f59c3 PM |
363 | new(className, appendOut=1, blockSize100k=1, workfactor=0, verbosity=0) |
364 | const char * className | |
bdb7fd9f RGS |
365 | int appendOut |
366 | int blockSize100k | |
367 | int workfactor | |
368 | int verbosity | |
369 | PPCODE: | |
370 | { | |
371 | int err ; | |
372 | deflateStream s ; | |
373 | #if 0 | |
374 | /* if (trace) */ | |
375 | warn("in Compress::Raw::Bzip2::_new(items=%d,appendOut=%d, blockSize100k=%d, workfactor=%d, verbosity=%d\n", | |
376 | items, appendOut, blockSize100k, workfactor, verbosity); | |
377 | #endif | |
378 | if ((s = InitStream() )) { | |
379 | ||
380 | err = BZ2_bzCompressInit ( &(s->stream), | |
381 | blockSize100k, | |
382 | verbosity, | |
383 | workfactor ); | |
384 | ||
385 | if (err != BZ_OK) { | |
386 | Safefree(s) ; | |
387 | s = NULL ; | |
388 | } | |
389 | else { | |
390 | int flags = 0 ; | |
391 | if (appendOut) | |
392 | flags |= FLAG_APPEND_OUTPUT; | |
393 | PostInitStream(s, appendOut ? FLAG_APPEND_OUTPUT :0) ; | |
394 | } | |
395 | } | |
396 | else | |
397 | err = BZ_MEM_ERROR ; | |
398 | ||
399 | { | |
c14f59c3 | 400 | SV* obj = sv_setref_pv(sv_newmortal(), className, (void*)s); |
bdb7fd9f RGS |
401 | XPUSHs(obj); |
402 | } | |
403 | if(0) | |
404 | { | |
405 | SV* obj = sv_2mortal(newSViv(PTR2IV(s))) ; | |
406 | XPUSHs(obj); | |
407 | } | |
408 | if (GIMME == G_ARRAY) { | |
409 | SV * sv = sv_2mortal(newSViv(err)) ; | |
410 | setDUALstatus(sv, err); | |
411 | XPUSHs(sv) ; | |
412 | } | |
413 | } | |
414 | ||
415 | MODULE = Compress::Raw::Bunzip2 PACKAGE = Compress::Raw::Bunzip2 | |
416 | ||
417 | void | |
ea6efd2c | 418 | new(className, appendOut=1 , consume=1, small=0, verbosity=0, limitOutput=0) |
c14f59c3 | 419 | const char* className |
bdb7fd9f RGS |
420 | int appendOut |
421 | int consume | |
422 | int small | |
423 | int verbosity | |
ea6efd2c | 424 | int limitOutput |
bdb7fd9f RGS |
425 | PPCODE: |
426 | { | |
427 | int err = BZ_OK ; | |
428 | inflateStream s ; | |
429 | #if 0 | |
430 | if (trace) | |
431 | warn("in _inflateInit(windowBits=%d, bufsize=%lu, dictionary=%lu\n", | |
432 | windowBits, bufsize, (unsigned long)SvCUR(dictionary)) ; | |
433 | #endif | |
434 | if ((s = InitStream() )) { | |
435 | ||
436 | err = BZ2_bzDecompressInit (&(s->stream), verbosity, small); | |
437 | if (err != BZ_OK) { | |
438 | Safefree(s) ; | |
439 | s = NULL ; | |
440 | } | |
441 | if (s) { | |
442 | int flags = 0; | |
443 | if (appendOut) | |
444 | flags |= FLAG_APPEND_OUTPUT; | |
445 | if (consume) | |
446 | flags |= FLAG_CONSUME_INPUT; | |
ea6efd2c MB |
447 | if (limitOutput) |
448 | flags |= (FLAG_LIMIT_OUTPUT|FLAG_CONSUME_INPUT); | |
bdb7fd9f RGS |
449 | PostInitStream(s, flags) ; |
450 | } | |
451 | } | |
452 | else | |
453 | err = BZ_MEM_ERROR ; | |
454 | ||
455 | { | |
c14f59c3 | 456 | SV* obj = sv_setref_pv(sv_newmortal(), className, (void*)s); |
bdb7fd9f RGS |
457 | XPUSHs(obj); |
458 | } | |
459 | if (0) | |
460 | { | |
461 | SV* obj = sv_2mortal(newSViv(PTR2IV(s))) ; | |
462 | XPUSHs(obj); | |
463 | } | |
464 | if (GIMME == G_ARRAY) { | |
465 | SV * sv = sv_2mortal(newSViv(err)) ; | |
466 | setDUALstatus(sv, err); | |
467 | XPUSHs(sv) ; | |
468 | } | |
469 | } | |
470 | ||
471 | ||
472 | ||
473 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 | |
474 | ||
475 | void | |
476 | DispStream(s, message=NULL) | |
477 | Compress::Raw::Bzip2 s | |
478 | char * message | |
479 | ||
480 | DualType | |
481 | bzdeflate (s, buf, output) | |
482 | Compress::Raw::Bzip2 s | |
483 | SV * buf | |
484 | SV * output | |
485 | uInt cur_length = NO_INIT | |
486 | uInt increment = NO_INIT | |
487 | int RETVAL = 0; | |
488 | uInt bufinc = NO_INIT | |
489 | CODE: | |
490 | bufinc = s->bufsize; | |
491 | ||
492 | /* If the input buffer is a reference, dereference it */ | |
493 | buf = deRef(buf, "deflate") ; | |
494 | ||
495 | /* initialise the input buffer */ | |
496 | #ifdef UTF8_AVAILABLE | |
497 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
498 | croak("Wide character in " COMPRESS_CLASS "::bzdeflate input parameter"); | |
499 | #endif | |
500 | s->stream.next_in = (char*)SvPVbyte_nolen(buf) ; | |
501 | s->stream.avail_in = SvCUR(buf) ; | |
502 | ||
503 | /* and retrieve the output buffer */ | |
504 | output = deRef_l(output, "deflate") ; | |
505 | #ifdef UTF8_AVAILABLE | |
506 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
507 | croak("Wide character in " COMPRESS_CLASS "::bzdeflate output parameter"); | |
508 | #endif | |
509 | ||
510 | if((s->flags & FLAG_APPEND_OUTPUT) != FLAG_APPEND_OUTPUT) { | |
511 | SvCUR_set(output, 0); | |
512 | /* sv_setpvn(output, "", 0); */ | |
513 | } | |
514 | cur_length = SvCUR(output) ; | |
515 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length; | |
516 | increment = SvLEN(output) - cur_length; | |
517 | s->stream.avail_out = increment; | |
518 | while (s->stream.avail_in != 0) { | |
519 | ||
520 | if (s->stream.avail_out == 0) { | |
521 | /* out of space in the output buffer so make it bigger */ | |
522 | Sv_Grow(output, SvLEN(output) + bufinc) ; | |
523 | cur_length += increment ; | |
524 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length ; | |
525 | increment = bufinc ; | |
526 | s->stream.avail_out = increment; | |
527 | bufinc *= 2 ; | |
528 | } | |
529 | ||
530 | RETVAL = BZ2_bzCompress(&(s->stream), BZ_RUN); | |
531 | if (RETVAL != BZ_RUN_OK) | |
532 | break; | |
533 | } | |
534 | ||
535 | s->compressedBytes += cur_length + increment - s->stream.avail_out ; | |
536 | s->uncompressedBytes += SvCUR(buf) - s->stream.avail_in ; | |
537 | ||
538 | s->last_error = RETVAL ; | |
539 | if (RETVAL == BZ_RUN_OK) { | |
540 | SvPOK_only(output); | |
541 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
542 | SvSETMAGIC(output); | |
543 | } | |
544 | OUTPUT: | |
545 | RETVAL | |
546 | ||
547 | ||
548 | void | |
549 | DESTROY(s) | |
550 | Compress::Raw::Bzip2 s | |
551 | CODE: | |
552 | BZ2_bzCompressEnd(&s->stream) ; | |
553 | Safefree(s) ; | |
554 | ||
555 | ||
556 | DualType | |
557 | bzclose(s, output) | |
558 | Compress::Raw::Bzip2 s | |
559 | SV * output | |
560 | uInt cur_length = NO_INIT | |
561 | uInt increment = NO_INIT | |
562 | uInt bufinc = NO_INIT | |
563 | CODE: | |
564 | bufinc = s->bufsize; | |
565 | ||
566 | s->stream.avail_in = 0; /* should be zero already anyway */ | |
567 | ||
568 | /* retrieve the output buffer */ | |
569 | output = deRef_l(output, "close") ; | |
570 | #ifdef UTF8_AVAILABLE | |
571 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
572 | croak("Wide character in " COMPRESS_CLASS "::bzclose input parameter"); | |
573 | #endif | |
574 | if(! s->flags & FLAG_APPEND_OUTPUT) { | |
575 | SvCUR_set(output, 0); | |
576 | /* sv_setpvn(output, "", 0); */ | |
577 | } | |
578 | cur_length = SvCUR(output) ; | |
579 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length; | |
580 | increment = SvLEN(output) - cur_length; | |
581 | s->stream.avail_out = increment; | |
582 | ||
583 | for (;;) { | |
584 | if (s->stream.avail_out == 0) { | |
585 | /* consumed all the available output, so extend it */ | |
586 | Sv_Grow(output, SvLEN(output) + bufinc) ; | |
587 | cur_length += increment ; | |
588 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length ; | |
589 | increment = bufinc ; | |
590 | s->stream.avail_out = increment; | |
591 | bufinc *= 2 ; | |
592 | } | |
593 | RETVAL = BZ2_bzCompress(&(s->stream), BZ_FINISH); | |
594 | ||
595 | /* deflate has finished flushing only when it hasn't used up | |
596 | * all the available space in the output buffer: | |
597 | */ | |
598 | /* if (s->stream.avail_out != 0 || RETVAL < 0 ) */ | |
599 | if (RETVAL == BZ_STREAM_END || RETVAL < 0 ) | |
600 | break; | |
601 | } | |
602 | ||
603 | /* RETVAL = (RETVAL == BZ_STREAM_END ? BZ_OK : RETVAL) ; */ | |
604 | s->last_error = RETVAL ; | |
605 | ||
606 | s->compressedBytes += cur_length + increment - s->stream.avail_out ; | |
607 | ||
608 | if (RETVAL == BZ_STREAM_END) { | |
609 | SvPOK_only(output); | |
610 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
611 | SvSETMAGIC(output); | |
612 | } | |
613 | OUTPUT: | |
614 | RETVAL | |
615 | ||
616 | ||
617 | DualType | |
618 | bzflush(s, output) | |
619 | Compress::Raw::Bzip2 s | |
620 | SV * output | |
621 | uInt cur_length = NO_INIT | |
622 | uInt increment = NO_INIT | |
623 | uInt bufinc = NO_INIT | |
624 | CODE: | |
625 | bufinc = s->bufsize; | |
626 | ||
627 | s->stream.avail_in = 0; /* should be zero already anyway */ | |
628 | ||
629 | /* retrieve the output buffer */ | |
630 | output = deRef_l(output, "close") ; | |
631 | #ifdef UTF8_AVAILABLE | |
632 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
633 | croak("Wide character in " COMPRESS_CLASS "::bzflush input parameter"); | |
634 | #endif | |
635 | if(! s->flags & FLAG_APPEND_OUTPUT) { | |
636 | SvCUR_set(output, 0); | |
637 | /* sv_setpvn(output, "", 0); */ | |
638 | } | |
639 | cur_length = SvCUR(output) ; | |
640 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length; | |
641 | increment = SvLEN(output) - cur_length; | |
642 | s->stream.avail_out = increment; | |
643 | ||
644 | for (;;) { | |
645 | if (s->stream.avail_out == 0) { | |
646 | /* consumed all the available output, so extend it */ | |
647 | Sv_Grow(output, SvLEN(output) + bufinc) ; | |
648 | cur_length += increment ; | |
649 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length ; | |
650 | increment = bufinc ; | |
651 | s->stream.avail_out = increment; | |
652 | bufinc *= 2 ; | |
653 | } | |
654 | RETVAL = BZ2_bzCompress(&(s->stream), BZ_FLUSH); | |
655 | ||
656 | if (RETVAL == BZ_RUN_OK || RETVAL < 0) | |
657 | break; | |
658 | ||
659 | /* deflate has finished flushing only when it hasn't used up | |
660 | * all the available space in the output buffer: | |
661 | */ | |
662 | /* RETVAL == if (s->stream.avail_out != 0 || RETVAL < 0 ) | |
663 | break; */ | |
664 | } | |
665 | ||
666 | /* RETVAL = (RETVAL == BZ_STREAM_END ? BZ_OK : RETVAL) ; */ | |
667 | s->last_error = RETVAL ; | |
668 | ||
669 | s->compressedBytes += cur_length + increment - s->stream.avail_out ; | |
670 | ||
671 | if (RETVAL == BZ_RUN_OK) { | |
672 | SvPOK_only(output); | |
673 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
674 | SvSETMAGIC(output); | |
675 | } | |
676 | OUTPUT: | |
677 | RETVAL | |
678 | ||
679 | uLong | |
680 | total_in_lo32(s) | |
681 | Compress::Raw::Bzip2 s | |
682 | CODE: | |
683 | RETVAL = s->stream.total_in_lo32 ; | |
684 | OUTPUT: | |
685 | RETVAL | |
686 | ||
687 | uLong | |
688 | total_out_lo32(s) | |
689 | Compress::Raw::Bzip2 s | |
690 | CODE: | |
691 | RETVAL = s->stream.total_out_lo32 ; | |
692 | OUTPUT: | |
693 | RETVAL | |
694 | ||
695 | uLong | |
696 | compressedBytes(s) | |
697 | Compress::Raw::Bzip2 s | |
698 | CODE: | |
699 | RETVAL = s->compressedBytes; | |
700 | OUTPUT: | |
701 | RETVAL | |
702 | ||
703 | uLong | |
704 | uncompressedBytes(s) | |
705 | Compress::Raw::Bzip2 s | |
706 | CODE: | |
707 | RETVAL = s->uncompressedBytes; | |
708 | OUTPUT: | |
709 | RETVAL | |
710 | ||
711 | ||
712 | MODULE = Compress::Raw::Bunzip2 PACKAGE = Compress::Raw::Bunzip2 | |
713 | ||
714 | void | |
715 | DispStream(s, message=NULL) | |
716 | Compress::Raw::Bunzip2 s | |
717 | char * message | |
718 | ||
719 | DualType | |
720 | bzinflate (s, buf, output) | |
721 | Compress::Raw::Bunzip2 s | |
722 | SV * buf | |
723 | SV * output | |
724 | uInt cur_length = 0; | |
725 | uInt prefix_length = 0; | |
726 | uInt increment = 0; | |
727 | STRLEN stmp = NO_INIT | |
728 | uInt bufinc = NO_INIT | |
729 | PREINIT: | |
730 | #ifdef UTF8_AVAILABLE | |
731 | bool out_utf8 = FALSE; | |
732 | #endif | |
733 | CODE: | |
734 | bufinc = s->bufsize; | |
735 | /* If the buffer is a reference, dereference it */ | |
ea6efd2c | 736 | buf = deRef(buf, "bzinflate") ; |
bdb7fd9f RGS |
737 | |
738 | if (s->flags & FLAG_CONSUME_INPUT && SvREADONLY(buf)) | |
739 | croak(UNCOMPRESS_CLASS "::bzinflate input parameter cannot be read-only when ConsumeInput is specified"); | |
740 | #ifdef UTF8_AVAILABLE | |
741 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
742 | croak("Wide character in " UNCOMPRESS_CLASS "::bzinflate input parameter"); | |
743 | #endif | |
744 | ||
745 | /* initialise the input buffer */ | |
746 | s->stream.next_in = (char*)SvPVbyte_force(buf, stmp) ; | |
747 | s->stream.avail_in = SvCUR(buf); | |
748 | ||
749 | /* and retrieve the output buffer */ | |
ea6efd2c | 750 | output = deRef_l(output, "bzinflate") ; |
bdb7fd9f RGS |
751 | #ifdef UTF8_AVAILABLE |
752 | if (DO_UTF8(output)) | |
753 | out_utf8 = TRUE ; | |
754 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
755 | croak("Wide character in " UNCOMPRESS_CLASS "::bzinflate output parameter"); | |
756 | #endif | |
757 | if((s->flags & FLAG_APPEND_OUTPUT) != FLAG_APPEND_OUTPUT) { | |
758 | SvCUR_set(output, 0); | |
759 | } | |
80b215cb | 760 | |
ea6efd2c MB |
761 | /* Assume no output buffer - the code below will update if there is any available */ |
762 | s->stream.avail_out = 0; | |
763 | ||
764 | if (SvLEN(output)) { | |
765 | prefix_length = cur_length = SvCUR(output) ; | |
766 | ||
767 | if (s->flags & FLAG_LIMIT_OUTPUT && SvLEN(output) - cur_length - 1 < bufinc) | |
768 | { | |
769 | Sv_Grow(output, bufinc + cur_length + 1) ; | |
770 | } | |
771 | ||
772 | /* Only setup the stream output pointers if there is spare | |
773 | capacity in the outout SV | |
774 | */ | |
775 | if (SvLEN(output) > cur_length + 1) | |
776 | { | |
777 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length; | |
778 | increment = SvLEN(output) - cur_length - 1; | |
779 | s->stream.avail_out = increment; | |
780 | } | |
781 | } | |
782 | ||
783 | s->bytesInflated = 0; | |
784 | ||
785 | RETVAL = BZ_OK; | |
bdb7fd9f RGS |
786 | |
787 | while (1) { | |
788 | ||
789 | if (s->stream.avail_out == 0) { | |
790 | /* out of space in the output buffer so make it bigger */ | |
ea6efd2c | 791 | Sv_Grow(output, SvLEN(output) + bufinc + 1) ; |
bdb7fd9f RGS |
792 | cur_length += increment ; |
793 | s->stream.next_out = (char*) SvPVbyte_nolen(output) + cur_length ; | |
794 | increment = bufinc ; | |
795 | s->stream.avail_out = increment; | |
796 | bufinc *= 2 ; | |
797 | } | |
798 | ||
dcfdccf9 | 799 | /* DispStream(s, "pre"); */ |
bdb7fd9f RGS |
800 | RETVAL = BZ2_bzDecompress (&(s->stream)); |
801 | ||
dcfdccf9 | 802 | /* DispStream(s, "apres"); */ |
ea6efd2c | 803 | if (RETVAL != BZ_OK || s->flags & FLAG_LIMIT_OUTPUT) |
bdb7fd9f RGS |
804 | break ; |
805 | ||
806 | if (s->stream.avail_out == 0) | |
807 | continue ; | |
808 | ||
809 | if (s->stream.avail_in == 0) { | |
810 | RETVAL = BZ_OK ; | |
811 | break ; | |
812 | } | |
813 | ||
814 | } | |
815 | ||
816 | s->last_error = RETVAL ; | |
817 | if (RETVAL == BZ_OK || RETVAL == BZ_STREAM_END) { | |
818 | unsigned in ; | |
819 | ||
820 | s->bytesInflated = cur_length + increment - s->stream.avail_out - prefix_length; | |
821 | s->uncompressedBytes += s->bytesInflated ; | |
822 | s->compressedBytes += SvCUR(buf) - s->stream.avail_in ; | |
823 | ||
824 | SvPOK_only(output); | |
825 | SvCUR_set(output, prefix_length + s->bytesInflated) ; | |
826 | *SvEND(output) = '\0'; | |
827 | #ifdef UTF8_AVAILABLE | |
828 | if (out_utf8) | |
829 | sv_utf8_upgrade(output); | |
830 | #endif | |
831 | SvSETMAGIC(output); | |
832 | ||
833 | /* fix the input buffer */ | |
834 | if (s->flags & FLAG_CONSUME_INPUT) { | |
835 | in = s->stream.avail_in ; | |
836 | SvCUR_set(buf, in) ; | |
837 | if (in) | |
838 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; | |
839 | *SvEND(buf) = '\0'; | |
840 | SvSETMAGIC(buf); | |
841 | } | |
842 | } | |
843 | OUTPUT: | |
844 | RETVAL | |
845 | ||
846 | uLong | |
847 | inflateCount(s) | |
848 | Compress::Raw::Bunzip2 s | |
849 | CODE: | |
850 | RETVAL = s->bytesInflated; | |
851 | OUTPUT: | |
852 | RETVAL | |
853 | ||
854 | ||
855 | void | |
856 | DESTROY(s) | |
857 | Compress::Raw::Bunzip2 s | |
858 | CODE: | |
859 | BZ2_bzDecompressEnd(&s->stream) ; | |
860 | Safefree(s) ; | |
861 | ||
862 | ||
863 | uLong | |
864 | status(s) | |
865 | Compress::Raw::Bunzip2 s | |
866 | CODE: | |
867 | RETVAL = s->last_error ; | |
868 | OUTPUT: | |
869 | RETVAL | |
870 | ||
871 | uLong | |
872 | total_in_lo32(s) | |
873 | Compress::Raw::Bunzip2 s | |
874 | CODE: | |
875 | RETVAL = s->stream.total_in_lo32 ; | |
876 | OUTPUT: | |
877 | RETVAL | |
878 | ||
879 | uLong | |
880 | total_out_lo32(s) | |
881 | Compress::Raw::Bunzip2 s | |
882 | CODE: | |
883 | RETVAL = s->stream.total_out_lo32 ; | |
884 | OUTPUT: | |
885 | RETVAL | |
886 | ||
887 | uLong | |
888 | compressedBytes(s) | |
889 | Compress::Raw::Bunzip2 s | |
890 | CODE: | |
891 | RETVAL = s->compressedBytes; | |
892 | OUTPUT: | |
893 | RETVAL | |
894 | ||
895 | uLong | |
896 | uncompressedBytes(s) | |
897 | Compress::Raw::Bunzip2 s | |
898 | CODE: | |
899 | RETVAL = s->uncompressedBytes; | |
900 | OUTPUT: | |
901 | RETVAL | |
902 | ||
903 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 PREFIX = Zip_ |