liblzma/common/common.c

170 lzma_strm_init(lzma_stream *strm)
172 	if (strm == NULL)
175 	if (strm->internal == NULL) {
176 		strm->internal = lzma_alloc(sizeof(lzma_internal),
177 				strm->allocator);
178 		if (strm->internal == NULL)
181 		strm->internal->next = LZMA_NEXT_CODER_INIT;
184 	memzero(strm->internal->supported_actions,
185 			sizeof(strm->internal->supported_actions));
186 	strm->internal->sequence = ISEQ_RUN;
187 	strm->internal->allow_buf_error = false;
189 	strm->total_in = 0;
190 	strm->total_out = 0;
197 lzma_code(lzma_stream *strm, lzma_action action)
200 	if ((strm->next_in == NULL && strm->avail_in != 0)
201 			|| (strm->next_out == NULL && strm->avail_out != 0)
202 			|| strm->internal == NULL
203 			|| strm->internal->next.code == NULL
205 			|| !strm->internal->supported_actions[action])
210 	if (strm->reserved_ptr1 != NULL
211 			|| strm->reserved_ptr2 != NULL
212 			|| strm->reserved_ptr3 != NULL
213 			|| strm->reserved_ptr4 != NULL
214 			|| strm->reserved_int1 != 0
215 			|| strm->reserved_int2 != 0
216 			|| strm->reserved_int3 != 0
217 			|| strm->reserved_int4 != 0
218 			|| strm->reserved_enum1 != LZMA_RESERVED_ENUM
219 			|| strm->reserved_enum2 != LZMA_RESERVED_ENUM)
222 	switch (strm->internal->sequence) {
229 			strm->internal->sequence = ISEQ_SYNC_FLUSH;
233 			strm->internal->sequence = ISEQ_FULL_FLUSH;
237 			strm->internal->sequence = ISEQ_FINISH;
241 			strm->internal->sequence = ISEQ_FULL_BARRIER;
251 				|| strm->internal->avail_in != strm->avail_in)
258 				|| strm->internal->avail_in != strm->avail_in)
265 				|| strm->internal->avail_in != strm->avail_in)
272 				|| strm->internal->avail_in != strm->avail_in)
287 	lzma_ret ret = strm->internal->next.code(
288 			strm->internal->next.coder, strm->allocator,
289 			strm->next_in, &in_pos, strm->avail_in,
290 			strm->next_out, &out_pos, strm->avail_out, action);
292 	strm->next_in += in_pos;
293 	strm->avail_in -= in_pos;
294 	strm->total_in += in_pos;
296 	strm->next_out += out_pos;
297 	strm->avail_out -= out_pos;
298 	strm->total_out += out_pos;
300 	strm->internal->avail_in = strm->avail_in;
311 			if (strm->internal->allow_buf_error)
314 				strm->internal->allow_buf_error = true;
316 			strm->internal->allow_buf_error = false;
321 		strm->internal->allow_buf_error = false;
326 		if (strm->internal->sequence == ISEQ_SYNC_FLUSH
327 				|| strm->internal->sequence == ISEQ_FULL_FLUSH
328 				|| strm->internal->sequence
330 			strm->internal->sequence = ISEQ_RUN;
332 			strm->internal->sequence = ISEQ_END;
342 		strm->internal->allow_buf_error = false;
348 		strm->internal->sequence = ISEQ_ERROR;
357 lzma_end(lzma_stream *strm)
359 	if (strm != NULL && strm->internal != NULL) {
360 		lzma_next_end(&strm->internal->next, strm->allocator);
361 		lzma_free(strm->internal, strm->allocator);
362 		strm->internal = NULL;
370 lzma_get_progress(lzma_stream *strm,
373 	if (strm->internal->next.get_progress != NULL) {
374 		strm->internal->next.get_progress(strm->internal->next.coder,
377 		*progress_in = strm->total_in;
378 		*progress_out = strm->total_out;
386 lzma_get_check(const lzma_stream *strm)
390 	if (strm->internal->next.get_check == NULL)
393 	return strm->internal->next.get_check(strm->internal->next.coder);
398 lzma_memusage(const lzma_stream *strm)
403 	if (strm == NULL || strm->internal == NULL
404 			|| strm->internal->next.memconfig == NULL
405 			|| strm->internal->next.memconfig(
406 				strm->internal->next.coder,
415 lzma_memlimit_get(const lzma_stream *strm)
420 	if (strm == NULL || strm->internal == NULL
421 			|| strm->internal->next.memconfig == NULL
422 			|| strm->internal->next.memconfig(
423 				strm->internal->next.coder,
432 lzma_memlimit_set(lzma_stream *strm, uint64_t new_memlimit)
438 	if (strm == NULL || strm->internal == NULL
439 			|| strm->internal->next.memconfig == NULL)
447 	return strm->internal->next.memconfig(strm->internal->next.coder,