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Twitter's Snowflake UUID generator in Erlang.
37 Commits 5 Branches 4 Tags 184 KiB
Erlang 98.1%
Makefile 1.9%
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Andrey Fadeev 563d8ef954
Move warnings_as_errors to dedicated profile (#7) 
The library should not block the compilation of other applications
2020-05-26 12:05:30 +03:00
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src Change time source from erlang to os system time (#6) 2020-03-31 15:29:26 +03:00
test Fix possibility of non-monotonic id generation after clock adjustment (#5) 2020-03-31 15:19:52 +03:00
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README.md

Snowflake: a 64-bit UUID generator

Original design by Twitter.

1> application:start(snowflake).
2> snowflake:new().
<<0,231,97,68,12,192,0,0>>
3> snowflake:serialize(snowflake:new()).
<<"AOdiTg5AAAA=">>
4> sets:size(sets:from_list([snowflake:new() || _I <- lists:seq(1,100000)])).
100000
5> lists:map(fun ({T, _}) -> T end,[timer:tc(snowflake, new, []) || _I <- lists:seq(1,100)]).
[93,46,42,42,42,53,55,43,42,43,73,36,34,33,39,52,48,39,35,
 54,36,34,33,34,40,35,33,33,34|...]