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| author | Quincey Koziol <koziol@hdfgroup.org> | 2016-12-02 16:07:04 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2016-12-02 16:07:04 (GMT) |
| commit | 64a339183f0e4532597744351548308203e993c8 (patch) | |
| tree | ddfff2f15c0f3a01782f191a847665c6eceadd42 /src/H5Dchunk.c | |
| parent | 5d7d029b97b36d1c380cef82d637342921bf3a1d (diff) | |
| download | hdf5-64a339183f0e4532597744351548308203e993c8.zip hdf5-64a339183f0e4532597744351548308203e993c8.tar.gz hdf5-64a339183f0e4532597744351548308203e993c8.tar.bz2 | |
Bring SWMR support in to the main development branch. (Finally!) More tests
and the tool and API wrappers will be coming in over the weekend.
Diffstat (limited to 'src/H5Dchunk.c')
| -rw-r--r-- | src/H5Dchunk.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c index 7637339..7a646af 100644 --- a/src/H5Dchunk.c +++ b/src/H5Dchunk.c @@ -6292,8 +6292,13 @@ H5D__chunk_file_alloc(const H5D_chk_idx_info_t *idx_info, const H5F_block_t *old /* Check for chunk being same size */ if(new_chunk->length != old_chunk->length) { /* Release previous chunk */ - if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, old_chunk->offset, old_chunk->length) < 0) - HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk") + /* Only free the old location if not doing SWMR writes - otherwise + * we must keep the old chunk around in case a reader has an + * outdated version of the B-tree node + */ + if(!(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)) + if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, old_chunk->offset, old_chunk->length) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk") alloc_chunk = TRUE; } /* end if */ else { |