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Use XXHash for hash table hashing of arbitrary sized keys

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Much faster than FNV
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Kovid Goyal 2024-12-16 20:53:36 +05:30
parent b602915d5b
commit dc1bed1bd1
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GPG key ID: 06BC317B515ACE7C
2 changed files with 14 additions and 9 deletions
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13
setup.py
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@ -279,6 +279,12 @@ def libcrypto_flags() -> Tuple[List[str], List[str]]:
return cflags, ldflags
@lru_cache(maxsize=2)
def xxhash_flags() -> tuple[list[str], list[str]]:
return pkg_config('libxxhash', '--cflags-only-I'), pkg_config('libxxhash', '--libs')
def at_least_version(package: str, major: int, minor: int = 0) -> None:
q = f'{major}.{minor}'
if subprocess.run([PKGCONFIG, package, f'--atleast-version={q}']
@ -606,9 +612,11 @@ def kitty_env(args: Options) -> Env:
ans.secondary_version = version[1]
ans.xt_version = '.'.join(map(str, version))
xxhash = xxhash_flags()
at_least_version('harfbuzz', 1, 5)
cflags.extend(pkg_config('libpng', '--cflags-only-I'))
cflags.extend(pkg_config('lcms2', '--cflags-only-I'))
cflags.extend(xxhash[0])
# simde doesnt come with pkg-config files but some Linux distros add
# them and on macOS when building with homebrew it is required
with suppress(SystemExit, subprocess.CalledProcessError):
@ -640,7 +648,7 @@ def kitty_env(args: Options) -> Env:
gl_libs = ['-framework', 'OpenGL'] if is_macos else pkg_config('gl', '--libs')
libpng = pkg_config('libpng', '--libs')
lcms2 = pkg_config('lcms2', '--libs')
ans.ldpaths += pylib + platform_libs + gl_libs + libpng + lcms2 + libcrypto_ldflags
ans.ldpaths += pylib + platform_libs + gl_libs + libpng + lcms2 + libcrypto_ldflags + xxhash[1]
if is_macos:
ans.ldpaths.extend('-framework Cocoa'.split())
elif not is_openbsd:
@ -1015,8 +1023,9 @@ def compile_kittens(args: Options) -> None:
headers = list_files(os.path.join('kittens', kitten, '*.h')) + list(extra_headers)
return kitten, sources, headers, f'kittens/{kitten}/{output}', includes, libraries
xxhash = xxhash_flags()
for kitten, sources, all_headers, dest, includes, libraries in (
files('transfer', 'rsync', libraries=pkg_config('libxxhash', '--libs'), includes=pkg_config('libxxhash', '--cflags-only-I')),
files('transfer', 'rsync', libraries=xxhash[1], includes=xxhash[0]),
):
final_env = kenv.copy()
final_env.cflags.extend(includes)