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Commit Graph

18 Commits

Author SHA1 Message Date
Jack O'Connor e06a0f255a refactor the Cargo feature set
The biggest change here is that assembly implementations are enabled by
default.

Added features:
- "pure" (Pure Rust, with no C or assembly implementations.)

Removed features:
- "c" (Now basically the default.)

Renamed features;
- "c_prefer_intrinsics" -> "prefer_intrinsics"
- "c_neon" -> "neon"

Unchanged:
- "rayon"
- "std" (Still the only feature on by default.)
2020-03-29 18:02:03 -04:00
Jack O'Connor 7caf1ad4bb version 0.2.3
Changes since version 0.2.2:
- Bug fix: Commit 13556be fixes a crash on Windows when using the SSE4.1
  assembly implementation (--features=c, set by default for b3sum). This
  is undefined behavior and therefore a potential security issue.
- b3sum now supports the --num-threads flag.
- The C API now includes a blake3_hasher_finalize_seek() function, which
  returns output from any position in the extended output stream.
- Build fix: Commit 5fad419 fixes a compiler error in the AVX-512 C
  intrinsics implementation targeting the Windows GNU ABI.
2020-03-29 01:44:00 -04:00
Jack O'Connor a0355ba8e0 add the --num-threads flag
As part of this change, make the rayon and memmap dependencies
mandatory. This simplifies the code a lot, and I'm not aware of any
callers who build b3sum without the default dependencies.

If --num-threads is not given, or if its value is 0, b3sum will still
respect the RAYON_NUM_THREADS environment variable.
2020-03-16 12:24:03 -04:00
Jack O'Connor c197a773ac version 0.2.2
Changes since 0.2.1 (and since c-0.2.0):
- Fix a performance issue when the caller makes multiple calls to
  update() with uneven lengths. (#69, reported by @willbryant.)
2020-02-25 12:15:27 -05:00
Jack O'Connor 865d201722 version 0.2.1
Changes since 0.2.0:
- Workarounds in the assembly implementations (enabled by the "c"
  feature), to build with older compilers.
2020-02-14 11:20:03 -05:00
Jack O'Connor afdaf3036b version 0.2.0
Changes since 0.1.5:
- The `c_avx512` feature has been replaced by the `c` feature. In
  addition to providing AVX-512 support, `c` also provides optimized
  assembly implementations. These assembly implementations perform
  better, perform more consistently across compilers, and compile more
  quickly. As before, `c` is off by default, but the `b3sum` binary
  crate activates it by default.
- The `rayon` feature no longer affects the entire API. Instead, it
  provides the `join::RayonJoin` type for use with
  `Hasher::update_with_join`, so that the caller can control when
  multi-threading happens. Standalone API functions like `hash` are
  always single-threaded now.
2020-02-12 14:57:57 -05:00
Jack O'Connor efbfa0463c integrate assembly implementations into the blake3 crate 2020-02-12 10:23:17 -05:00
Jack O'Connor 0de4412884 version 0.1.4
Changes since 0.1.3:
- Hasher supports the reset() method.
- Hasher implements several traits from the `digest` and `crypto_mac`
  crates.
- Bug fixes in the C implementation for MSVC and for 32-bit x86.
2020-02-03 12:05:26 -05:00
Jack O'Connor e17c45ddd5 version 0.1.3
Changes since 0.1.2:
- All x86 implementations include _mm_prefetch optimizations. These
  improve performance for very large inputs.
- The C implementation performs parallel parent hashing, matching the
  performance of the single-threaded Rust implementation.
- b3sum supports --no-mmap. Contributed by @cesarb.
2020-01-22 21:35:24 -05:00
Jack O'Connor 14cd5c51c4 version 0.1.2
Changes since 0.1.1:
- b3sum no longer mmaps files smaller than 16 KiB. This improves
  performance for hashing many small files. Contributed by @xzfc.
- b3sum now supports --raw output. Contributed by @phayes.
2020-01-17 13:58:55 -05:00
Jack O'Connor 02250a7b7c version 0.1.1
Changes since 0.1.0:
- Optimizations contributed by @cesarb.
- Fix the build on x86_64-pc-windows-gnu when c_avx512 is enabled.
- Add an explicit error message for compilers that don't support c_avx512.
2020-01-13 14:47:28 -05:00
Jack O'Connor caa6622afa explicitly check for -mavx512f or /arch:AVX512 support
If AVX-512 is enabled, and the local C compiler doesn't support it, the
build is going to fail. However, if we check for this explicitly, we can
give a better error message.

Fixes https://github.com/BLAKE3-team/BLAKE3/issues/6.
2020-01-13 14:34:27 -05:00
Jack O'Connor 1d17689133 same license field fix in b3sum/Cargo.toml 2020-01-10 10:00:17 -05:00
Jack O'Connor 7f43ed9f47 use the Apache-2.0 license in Cargo.toml
This project is also CC0, but crates.io doesn't seem to understand that
one.
2020-01-09 11:48:09 -05:00
Jack O'Connor 3cf242b651 fill out Cargo.toml files for publication 2020-01-09 10:50:55 -05:00
Jack O'Connor b1b507d43a make b3sum --keyed and --derive-key read the key from stdin
Putting secret keys on the command line is bad practice, because command
line args are usually globally visible within the OS. Even if these
flags are mostly intended for testing and experimentation, we might as
well do the right thing. Plus this saves people the trouble of hex
encoding their keys.
2019-12-13 16:10:55 -05:00
Jack O'Connor 9bf1020213 make the "c_avx512" feature a no-op on non-x86
This lets us enable it by default in b3sum.
2019-12-12 15:13:04 -05:00
Jack O'Connor 7cf6b8f174 initial version of b3sum 2019-12-12 13:18:57 -05:00