./devel/blosc, Blocking, shuffling, and lossless compression library

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Branch: CURRENT, Version: 1.17.0, Package name: blosc-1.17.0, Maintainer: minskim

Blosc is a high performance compressor optimized for binary data. It
has been designed to transmit data to the processor cache faster than
the traditional, non-compressed, direct memory fetch approach via a
memcpy() OS call. Blosc is the first compressor that is meant not only
to reduce the size of large datasets on-disk or in-memory, but also to
accelerate memory-bound computations.


Required to run:
[devel/snappy] [archivers/lz4] [archivers/zstd]

Required to build:
[pkgtools/cwrappers]

Master sites:

SHA1: ab57ac90e5017e2a97e7ab22e9cf464c2dd418c8
RMD160: 52730c8b90f29986f9aed5ee854c6b4edc6f5087
Filesize: 844.312 KB

Version history: (Expand)


CVS history: (Expand)


   2019-08-28 12:29:37 by Adam Ciarcinski | Files touched by this commit (2) | Package updated
Log message:
blosc: updated to 1.17.0

Release 1.17.0
LZ4 codec updated to 1.9.1.
Zstd codec updated to 1.4.1.
BloscLZ codec updated to 2.0.0. Although this should be fully backward
compatible, it contains important changes that affects mainly speed, but
also compression ratios. Feedback on how it behaves on your own data is
appreciated.
   2019-06-14 17:12:40 by Adam Ciarcinski | Files touched by this commit (3) | Package updated
Log message:
blosc: updated to 1.16.3

Release 1.16.3
Fix for building for clang with -march=haswell.
Fix all the known warnings for GCC/Clang. Still some work to do for MSVC
in this front.
Due to some problems with several CI systems, the check for library symbols
are deactivated now by default. If you want to enforce this check, use:
cmake .. -DDEACTIVATE_SYMBOLS_CHECK=ON to re-activate it.

Release 1.16.2
Correct the check for the compressed size when the buffer is memcpyed. This
was a regression introduced in 1.16.0.

Release 1.16.1
Fixed a regression in 1.16.0 that prevented to compress empty buffers
Zstd updated to 1.3.8

Release 1.16.0
Now the functions that execute Blosc decompressions are safe by default
for untrusted/possibly corrupted inputs. The additional checks seem to
not affect performance significantly (see some benchmarks), so
this is why they are the default now.

The previous functions (with less safety) checks are still available with a
'_unsafe' suffix. The complete list is:

blosc_decompress_unsafe()
blosc_decompress_ctx_unsafe()
blosc_getitem_unsafe()
Also, a new API function named blosc_cbuffer_validate(), for validating Blosc
compressed data, has been added.

Fixed a bug in blosc_compress() that could lead to thread deadlock under
some situations.

Fix data race in shuffle.c host_implementation initialization.
   2018-05-13 05:22:33 by Min Sik Kim | Files touched by this commit (2)
Log message:
devel/blosc: Make this package build on Darwin again

test_common.h has a seperate #elif branch to handle Darwin. Let blosc
use it on Darwin, rather than the C11 branch.
   2018-05-12 16:04:00 by Maya Rashish | Files touched by this commit (3)
Log message:
blosc: fix previous, use posix_memalign if possible.

We are using undefined behaviour so lots of the tests are failing. with
this and testing upstream trunk, all tests passed on netbsd.
   2018-05-12 14:01:26 by Maya Rashish | Files touched by this commit (3) | Package updated
Log message:
blosc: use the __STDC_VERSION__ right for everyone, not just freebsd.

(we can probably drop the _ISO_C11 feature test thing for glibc then).

bump PKGREVISION, this likely changes the binary for SunOS.
   2018-04-05 17:26:08 by Min Sik Kim | Files touched by this commit (2) | Package updated
Log message:
devel/blosc: Update to 1.14.2

Notable changes since 1.12.1:
- Serious optimization of memory copy functions (see new
  blosc/fastcopy.c). This benefits the speed of all the codecs, but
  specially the BloscLZ one.
- As a result of the above, the BloscLZ codec received a new
  adjustment of knobs so that you should expect better compression
  ratios with it too.
- Fixed a buffer overrun that happens when compressing small buffers
  and len(destination_buffer) < (len(source_buffer) +
  BLOSC_MAX_OVERHEAD).
- New split mode that favors forward compatibility. That means that,
  from now on, all the buffers created starting with blosc 1.14.0 will
  be forward compatible with any previous versions of the library --at
  least until 1.3.0, when support for multi-codec was introduced.
   2018-04-05 11:33:48 by Jonathan Perkin | Files touched by this commit (3)
Log message:
blosc: Use posix_memalign on SunOS.
   2017-09-26 19:38:23 by Min Sik Kim | Files touched by this commit (6)
Log message:
devel/blosc: Import version 1.12.1 from pkgsrc-wip

Blosc is a high performance compressor optimized for binary data. It
has been designed to transmit data to the processor cache faster than
the traditional, non-compressed, direct memory fetch approach via a
memcpy() OS call. Blosc is the first compressor that is meant not only
to reduce the size of large datasets on-disk or in-memory, but also to
accelerate memory-bound computations.

Packaged by me and improved by wiz and coypu.