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luatz/timetable: Optimize and export `is_leap`; add tests
[etc/awesome.git] / doc / gettime.md
1 # `luatz.gettime`
2
3 A module to get the current time.
4
5 Uses the most precise method available (in order:)
6
7   - Use [ljsyscall](http://www.myriabit.com/ljsyscall/) to access
8           - `clock_gettime(2)` called with `CLOCK_REALTIME`
9           - `gettimeofday(2)`
10   - [luasocket](http://w3.impa.br/~diego/software/luasocket/)'s `socket.gettime`
11   - [`os.time`](http://www.lua.org/manual/5.2/manual.html#pdf-os.time)
12
13 ## `source`
14
15 The library/function currently in use.
16
17 ## `resolution`
18
19 The smallest time resolution (in seconds) available from `gettime ( )` .
20
21 ## `gettime ( )`
22
23 Returns the number of seconds since unix epoch (1970-01-01T00:00:00Z) as a lua number