t: libc::tm,
}
-fn is_leap_year(year: libc::c_int) -> bool {
- if year % 4 != 0 { return false; }
- if year % 100 != 0 { return true; }
- if year % 400 != 0 { return false; }
- return true;
-}
-
-fn days_in_month(mon: libc::c_int, year: libc::c_int) -> libc::c_int {
-
- let mon = mon % 12;
-
- static MAP: &[libc::c_int] = &[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
-
- if mon == 1 && is_leap_year(year) { return 29; }
-
- MAP[mon as usize]
-}
-
impl TmEditor {
pub fn new(epoch: i64, utc: bool) -> Result<Self, Error> {
- let mut t = if utc { gmtime(epoch)? } else { localtime(epoch)? };
- t.tm_year += 1900; // real years for clarity
+ let t = if utc { gmtime(epoch)? } else { localtime(epoch)? };
Ok(Self { utc, t })
}
pub fn into_epoch(mut self) -> Result<i64, Error> {
- self.t.tm_year -= 1900;
let epoch = if self.utc { timegm(&mut self.t)? } else { timelocal(&mut self.t)? };
Ok(epoch)
}
- pub fn add_days(&mut self, days: libc::c_int, reset_time: bool) {
- if days == 0 { return; }
- if reset_time {
- self.t.tm_hour = 0;
- self.t.tm_min = 0;
- self.t.tm_sec = 0;
- }
+ /// increases the year by 'years' and resets all smaller fields to their minimum
+ pub fn add_years(&mut self, years: libc::c_int) -> Result<(), Error> {
+ if years == 0 { return Ok(()); }
+ self.t.tm_mon = 0;
+ self.t.tm_mday = 1;
+ self.t.tm_hour = 0;
+ self.t.tm_min = 0;
+ self.t.tm_sec = 0;
+ self.t.tm_year += years;
+ self.normalize_time()
+ }
+
+ /// increases the month by 'months' and resets all smaller fields to their minimum
+ pub fn add_months(&mut self, months: libc::c_int) -> Result<(), Error> {
+ if months == 0 { return Ok(()); }
+ self.t.tm_mday = 1;
+ self.t.tm_hour = 0;
+ self.t.tm_min = 0;
+ self.t.tm_sec = 0;
+ self.t.tm_mon += months;
+ self.normalize_time()
+ }
+
+ /// increases the day by 'days' and resets all smaller fields to their minimum
+ pub fn add_days(&mut self, days: libc::c_int) -> Result<(), Error> {
+ if days == 0 { return Ok(()); }
+ self.t.tm_hour = 0;
+ self.t.tm_min = 0;
+ self.t.tm_sec = 0;
self.t.tm_mday += days;
- self.t.tm_wday += days;
- self.wrap_time();
+ self.normalize_time()
}
+ pub fn year(&self) -> libc::c_int { self.t.tm_year + 1900 } // see man mktime
+ pub fn month(&self) -> libc::c_int { self.t.tm_mon + 1 }
+ pub fn day(&self) -> libc::c_int { self.t.tm_mday }
pub fn hour(&self) -> libc::c_int { self.t.tm_hour }
pub fn min(&self) -> libc::c_int { self.t.tm_min }
pub fn sec(&self) -> libc::c_int { self.t.tm_sec }
(self.t.tm_wday + 6) % 7
}
- pub fn set_time(&mut self, hour: libc::c_int, min: libc::c_int, sec: libc::c_int) {
+ pub fn set_time(&mut self, hour: libc::c_int, min: libc::c_int, sec: libc::c_int) -> Result<(), Error> {
self.t.tm_hour = hour;
self.t.tm_min = min;
self.t.tm_sec = sec;
- self.wrap_time();
+ self.normalize_time()
}
- pub fn set_min_sec(&mut self, min: libc::c_int, sec: libc::c_int) {
+ pub fn set_min_sec(&mut self, min: libc::c_int, sec: libc::c_int) -> Result<(), Error> {
self.t.tm_min = min;
self.t.tm_sec = sec;
- self.wrap_time();
+ self.normalize_time()
}
- fn wrap_time(&mut self) {
-
- // sec: 0..59
- if self.t.tm_sec >= 60 {
- self.t.tm_min += self.t.tm_sec / 60;
- self.t.tm_sec %= 60;
- }
-
- // min: 0..59
- if self.t.tm_min >= 60 {
- self.t.tm_hour += self.t.tm_min / 60;
- self.t.tm_min %= 60;
- }
-
- // hour: 0..23
- if self.t.tm_hour >= 24 {
- self.t.tm_mday += self.t.tm_hour / 24;
- self.t.tm_wday += self.t.tm_hour / 24;
- self.t.tm_hour %= 24;
- }
-
- // Translate to 0..($days_in_mon-1)
- self.t.tm_mday -= 1;
- loop {
- let days_in_mon = days_in_month(self.t.tm_mon, self.t.tm_year);
- if self.t.tm_mday < days_in_mon { break; }
- // Wrap one month
- self.t.tm_mday -= days_in_mon;
- self.t.tm_mon += 1;
- }
-
- // Translate back to 1..$days_in_mon
- self.t.tm_mday += 1;
-
- // mon: 0..11
- if self.t.tm_mon >= 12 {
- self.t.tm_year += self.t.tm_mon / 12;
- self.t.tm_mon %= 12;
+ fn normalize_time(&mut self) -> Result<(), Error> {
+ // libc normalizes it for us
+ if self.utc {
+ timegm(&mut self.t)?;
+ } else {
+ timelocal(&mut self.t)?;
}
-
- self.t.tm_wday %= 7;
+ Ok(())
}
- pub fn set_sec(&mut self, v: libc::c_int) {
+ pub fn set_sec(&mut self, v: libc::c_int) -> Result<(), Error> {
self.t.tm_sec = v;
- self.wrap_time();
+ self.normalize_time()
}
- pub fn set_min(&mut self, v: libc::c_int) {
+ pub fn set_min(&mut self, v: libc::c_int) -> Result<(), Error> {
self.t.tm_min = v;
- self.wrap_time();
+ self.normalize_time()
}
- pub fn set_hour(&mut self, v: libc::c_int) {
+ pub fn set_hour(&mut self, v: libc::c_int) -> Result<(), Error> {
self.t.tm_hour = v;
- self.wrap_time();
+ self.normalize_time()
}
- pub fn set_mday(&mut self, v: libc::c_int) {
+ pub fn set_mday(&mut self, v: libc::c_int) -> Result<(), Error> {
self.t.tm_mday = v;
- self.wrap_time();
+ self.normalize_time()
}
- pub fn set_mon(&mut self, v: libc::c_int) {
- self.t.tm_mon = v;
- self.wrap_time();
+ pub fn set_mon(&mut self, v: libc::c_int) -> Result<(), Error> {
+ self.t.tm_mon = v - 1;
+ self.normalize_time()
}
- pub fn set_year(&mut self, v: libc::c_int) {
- self.t.tm_year = v;
- self.wrap_time();
+ pub fn set_year(&mut self, v: libc::c_int) -> Result<(), Error> {
+ self.t.tm_year = v - 1900;
+ self.normalize_time()
}
-
- pub fn set_wday(&mut self, v: libc::c_int) {
- self.t.tm_wday = v;
- self.wrap_time();
- }
-
}
projects / proxmox-backup.git / blobdiff