From 24005ac2e2fa9bc59cd0b89f67c9aced138a3759 Mon Sep 17 00:00:00 2001
From: Marta Iborra <martaiborra24@gmail.com>
Date: Thu, 18 Apr 2024 10:23:38 +0200
Subject: [PATCH] Keep track of current nchunk when seting a slice (needed when
 applying prefilters)

---
 blosc/b2nd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/blosc/b2nd.c b/blosc/b2nd.c
index e5047baf..44a50069 100644
--- a/blosc/b2nd.c
+++ b/blosc/b2nd.c
@@ -784,6 +784,8 @@ int get_set_slice(void *buffer, int64_t buffersize, const int64_t *start, const
       uint8_t *chunk = malloc(chunk_nbytes);
       BLOSC_ERROR_NULL(chunk, BLOSC2_ERROR_MEMORY_ALLOC);
       int brc;
+      // Update current_chunk in case a prefilter is applied
+      array->sc->current_nchunk = nchunk;
       brc = blosc2_compress_ctx(array->sc->cctx, data, data_nbytes, chunk, chunk_nbytes);
       if (brc < 0) {
         BLOSC_TRACE_ERROR("Blosc can not compress the data");