130     state->strm.avail_in = 0;   /* no input data yet */  in xz_reset()
132     state->zstrm.avail_in = 0;  /* no input data yet */  in xz_reset()
261         unsigned tmp = strm->avail_in;  in xz_avail()
264             strm->avail_in = tmp;  in xz_avail()
267         strm->avail_in = tmp;  in xz_avail()
278     state->strm.avail_in = state->zstrm.avail_in;  in xz_avail_zstrm()
281     state->zstrm.avail_in = (uInt) state->strm.avail_in;  in xz_avail_zstrm()
292     return strm->avail_in >= 6 && memcmp(state->in, "\3757zXZ", 6) == 0;  in is_format_xz()
306     if (strm->avail_in < 13)  in is_format_lzma()
353 #define NEXT() ((strm->avail_in == 0 && xz_avail(state) == -1) ? -1 : \
354                 (strm->avail_in == 0 ? -1 : \
355                  (strm->avail_in--, *(strm->next_in)++)))
357 #define NEXTZ() ((strm->avail_in == 0 && xz_avail_zstrm(state) == -1) ? -1 : \
358                 (strm->avail_in == 0 ? -1 : \
359                  (strm->avail_in--, *(strm->next_in)++)))
407         state->strm.avail_in = 0;  in xz_head()
421         state->zstrm.avail_in = 0;  in xz_head()
437     if (strm->avail_in == 0) {  in xz_head()
440         if (strm->avail_in == 0)  in xz_head()
453         strm->avail_in--;  in xz_head()
455         if (strm->avail_in == 0 && xz_avail(state) == -1)  in xz_head()
457         if (strm->avail_in && strm->next_in[0] == 139) {  in xz_head()
459             strm->avail_in--;  in xz_head()
517     if (strm->avail_in) {  in xz_head()
518         memcpy(state->next + state->have, strm->next_in, strm->avail_in);  in xz_head()
519         state->have += strm->avail_in;  in xz_head()
520         strm->avail_in = 0;  in xz_head()
541         if (strm->avail_in == 0 && xz_avail(state) == -1)  in xz_decomp()
543         if (strm->avail_in == 0) {  in xz_decomp()
553             state->zstrm.avail_in = (uInt) state->strm.avail_in;  in xz_decomp()
569             state->strm.avail_in = state->zstrm.avail_in;  in xz_decomp()
609             state->strm.avail_in = 0;  in xz_decomp()
615         if (strm->avail_in != 0 || !state->eof) {  in xz_decomp()
670         else if (state->eof && state->strm.avail_in == 0)  in xz_skip()
730         else if (state->eof && strm->avail_in == 0)  in __libxml2_xzread()