41 lines
902 B
Zig
41 lines
902 B
Zig
const std = @import("std");
|
|
|
|
var boot_epoch: u64 = undefined;
|
|
var epoch: u64 = 0;
|
|
|
|
fn year_is_leap(y: u16) bool {
|
|
return (y%4) == 0;
|
|
}
|
|
|
|
pub const DateTime = struct {
|
|
year: u16,
|
|
month: u8,
|
|
day: u16,
|
|
hours: u8,
|
|
mins: u8,
|
|
secs: u8,
|
|
|
|
fn fromEpoch(e: u64) DateTime {
|
|
// const year = 1970;
|
|
// var yearlen = if(year_is_leap(year))
|
|
|
|
const year = 1970 + (e / 31556926);
|
|
const days = (e % 31556926) / 86400;
|
|
return .{
|
|
.secs = @intCast(u8, e % 60),
|
|
.mins = @intCast(u8, (e/60) % 60),
|
|
.hours = @intCast(u8, (e /3600) % 60),
|
|
.day = @intCast(u16, days),
|
|
.month = 0,
|
|
.year = @intCast(u16, year),
|
|
};
|
|
}
|
|
};
|
|
|
|
export fn setEpoch(e: u64) void {
|
|
boot_epoch = e;
|
|
}
|
|
|
|
pub fn displayTime(w: anytype) !void {
|
|
try w.print("{}", .{DateTime.fromEpoch(boot_epoch)});
|
|
} |