4 Commits

Include renames

Author	SHA1	Message	Date
osobhandClaude Opus 5.5	fc7ae6549a	build: declare Rust 1.92 as the MSRV and check it in CI ... rust-version = "1.92" in [workspace.package], inherited by every crate. 1.92 is the floor: wgpu (clawhdf5-gpu) requires it, and the whole workspace, Python bindings included, checks cleanly on it. ci-test.sh reads the version from Cargo.toml and checks the workspace on exactly that toolchain, so the manifests and the README badge cannot drift from what actually builds. The badge said 1.75, below edition 2024's own floor. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>	2026-09-23 11:05:26 -05:00
Omar SobhandClaude Sonnet 4.6	cb0b0e9df2	fix: correct libaec constants, HDF5→libaec option mapping, and VDS serialization ... Critical fixes from whole-branch code review: - libaec-sys: fix flag constants to match <libaec.h> exactly (PREPROCESS=8, MSB=4, RESTRICTED=16; drop non-existent AEC_ALLOW_K13) and add aec_buffer_encode FFI declaration - filters_szip: fix cd index for bits_per_sample (cd[2] per H5Z_SZIP_PARM_BPP, not cd[4]); fix option-mask mapping (NN=0x20, MSB unconditional); add two real encode→decode roundtrip tests (no-NN and NN) that exercise libaec end-to-end - file_writer: fix serialize_vds_mappings to delegate to data_layout_write (eliminates the buggy duplicate that always emitted version=1 even for external-file mappings); retains trailing Jenkins checksum Co-Authored-By: Claude Sonnet 4.6 <[email protected]>	2026-06-30 11:41:41 +00:00
Omar SobhandClaude Sonnet 4.6	e91f7fc539	fix: correct libaec FFI to use aec_stream struct (fixes SIGSEGV) ... The previous aec_buffer_decode declaration used flat parameters which don't match the actual libaec C API; this caused a SIGSEGV at runtime. Replace with the correct aec_stream struct (mirroring <libaec.h>) and update filters_szip.rs to populate and pass &mut AecStream. Also add empty-input guard in szip_decode_impl and fallback library path search in build.rs for distros that omit the .pc file. Co-Authored-By: Claude Sonnet 4.6 <[email protected]>	2026-06-30 11:41:41 +00:00
Omar SobhandClaude Sonnet 4.6	d6c4d4f111	feat: implement filter codecs, format write extensions, and MPI-IO VOL ... All three SDD plans fully wired and committed to main: Filter Codecs (FC): - FC-1: Implement float E-scale in scaleoffset_decompress (value = minval + code * 2^E, negative exponents via cast to i32); add two round-trip tests. - FC-2: filters_szip.rs — feature-gated SZIP decode via libaec FFI; SZIP dispatch arm added to decompress_chunk. - FC-3: libaec-sys workspace crate with pkg-config probe and aec_buffer_decode FFI binding; added to workspace members. Format Write Extensions (FWE): - FWE-1: GroupBuilder::add_external_link() API; wired through FinishedGroup → GrpFlat → file_writer pass 1/2/3 (OH size, layout cursor, final write); external_link_write_roundtrip test. - FWE-2: data_layout_write.rs — serialize_vds_mappings with length_size param and version 0/1 (external vs same-file) selection; declared as pub mod. - FWE-3: with_virtual_sources empty-mapping guard (Important #9) — empty vec is silently ignored; vds_empty_mapping_list test updated to assert non-VDS layout results. MPI-IO VOL Backend (MPI): - MPI-1/2/3: mpi_vol.rs — MpiVol implementing VirtualObjectLayer; root-read + broadcast collective read; gather + root-write collective write; feature- gated mpi-io feature; wired into clawhdf5-io lib.rs. - MPI-4: mpi_io_bench binary (h5bench-equivalent MPI-IO throughput bench). mpi_vol.rs reviewer fixes: - Doc-comment updated to accurately describe root-read+broadcast pattern (not MPI_File_read_at); MpiVol::expected_capabilities() associated fn added so tests can verify capabilities without a live MPI universe; rank_and_size_stub_values renamed to no_feature_error_contains_feature_name. Workspace check: zero warnings, 20 test suites pass. Co-Authored-By: Claude Sonnet 4.6 <[email protected]>	2026-06-30 11:41:41 +00:00