X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Usermode%2FLibraries%2Flibc.so_src%2Ftimeconv.h;fp=Usermode%2FLibraries%2Flibc.so_src%2Ftimeconv.h;h=1adba8f8db592f2dfc92b311ea68f72a1b1ce0af;hb=2610c32930309a73308f64731a05f2e83487b731;hp=0000000000000000000000000000000000000000;hpb=d4b3582f716e06672de2d374be06064118236aed;p=tpg%2Facess2.git

diff --git a/Usermode/Libraries/libc.so_src/timeconv.h b/Usermode/Libraries/libc.so_src/timeconv.h
new file mode 100644
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+++ b/Usermode/Libraries/libc.so_src/timeconv.h
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+/*
+ * Acess2 C Library
+ * - By John Hodge (thePowersGang)
+ *
+ * timeconv.h
+ * - Shared User/Kernel time conversion code
+ */
+#ifndef _LIBC_TIMECONV_H_
+#define _LIBC_TIMECONV_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+
+extern int64_t	seconds_since_y2k(int years_since, int mon, int day, int h, int m, int s);
+
+/**
+ * \return Number of days since Y2K
+ * 
+ * Extracts the time of day from the timestamp, (possibly taking into account leap seconds)
+ */
+extern int64_t	get_days_since_y2k(int64_t ts, int *h, int *m, int *s);
+
+/**
+ * \param days	Number of days since Y2K
+ * \return Number of years since Y2K
+ * 
+ * Converts a count of days since Y2K, and returns the number of years. Extracting the day of
+ * year, and if that year is a leap year.
+ */
+extern int64_t	get_years_since_y2k(int64_t days, bool *is_leap, int *doy);
+
+
+/**
+ * Gets the month and day of month from a day of year and leap year status
+ */
+extern void	get_month_day(int doy, bool is_ly, int *mon, int *day);
+
+#endif
+