luajit version for xxHash
To install luajit-xxHash you need to install
xxHash
with shared libraries firtst.
Then you can install luajit-xxHash by placing lib/resty/xxhash.lua to
your lua library path.
local xxhash = require "xxhash"
local f = assert(io.open(filename, r))
local t = f:read("*all")
local x = xxhash.xxh64(t)
print(x)
-- goto start position of the file
f:seek("set", 0)
local xxh = xxhash.new(64)
while true do
local lines, rest = f:read(1024, "*line")
if not lines then break end
if rest then lines = lines .. rest .. "\n" end
xxh:update(lines)
end
local y = xxh:digest()
print(y)
print("canonical form: ", xxh:canonicalFromHash())
-- check
assert(x == y)
xxh:free()
f:close()syntax: xxhash.xx32(input, seed?)
syntax: xxhash.xx32(input, seed?)
syntax: xxh, err = xxhash.new(bits, seed?)
Creates a xxhash object.
syntax: xxh:update(input)
syntax: s = xxh:digest()
syntax: xxh:canonicalFromHash()
The canonical representation uses human-readable write convention, aka big-endian (large digits first).
syntax: xxh:free()
Soojin Nam jsunam@gmail.com
Public Domain