star-hitran

commit 372d23022f0eb854716e8abf9aaa182ab5ecf9e6
parent 76ad8a9dd032763b70c2756f04097c2cbf17eb5f
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Mon, 12 Jan 2026 16:47:41 +0100

Compression/decompression fix

The inflate procedure failed when there were multiple compressed chunks.
Now, each chunk is treated as a separate stream, compressed/decompressed
independently of the others.

Diffstat:
M
src/shtr_line_list.c
 | 
11
++++++-----

1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/src/shtr_line_list.c b/src/shtr_line_list.c
@@ -79,7 +79,6 @@ zctx_init(struct zctx* zctx, struct shtr* shtr, const int level)
   res_T res = RES_OK;
   ASSERT(zctx && shtr);
 
-
   *zctx = ZCTX_NULL;
 
   SHTR(ref_get(shtr));
@@ -139,8 +138,10 @@ zctx_deflate(struct zctx* zctx, struct shtr_line_list* list)
   zctx->stream.avail_out = ZCHUNK_MAX_SIZE;
 
   /* Compress */
-  ret = deflate(&zctx->stream, Z_FULL_FLUSH);
-  if(ret != Z_OK) { res = RES_UNKNOWN_ERR; goto error; }
+  ret = deflate(&zctx->stream, Z_FINISH);
+  if(ret != Z_STREAM_END) { res = RES_UNKNOWN_ERR; goto error; }
+
+  CHK(deflateReset(&zctx->stream) == Z_OK);
 
   /* Calculate the size after compression */
   zchunk.size = ZCHUNK_MAX_SIZE - zctx->stream.avail_out;
@@ -591,8 +592,8 @@ decompress_zchunk
   list->z_stream.avail_in = (uInt)zchunk->size;
   list->z_stream.next_out = (unsigned char*)lines;
   list->z_stream.avail_out = (uInt)(sizeof(struct line)*NLINES_PER_CHUNK);
-  ret = inflate(&list->z_stream, Z_SYNC_FLUSH);
-  if(ret != Z_OK) {
+  ret = inflate(&list->z_stream, Z_FINISH);
+  if(ret != Z_STREAM_END) {
     ASSERT(list->z_stream.msg);
     ERROR(list->shtr, "Error decompressing the chunk of lines -- %s\n",
       list->z_stream.msg);