[pbs-devel] [PATCH proxmox-backup 04/10] tools/systemd/tm_editor: remove reset_time from add_days and document it

[Dominik Csapak <d.csapak@proxmox.com>]

we never passed 'false' to it anyway so remove it
(we can add it again if we should ever need it)

also remove the adding of wday (gets normalized anyway)
and set changes to all, since adding days can wrap the month and year too
(all other fields get set by us here explicitely)

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
 src/tools/systemd/time.rs      |  6 +++---
 src/tools/systemd/tm_editor.rs | 15 ++++++---------
 2 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/src/tools/systemd/time.rs b/src/tools/systemd/time.rs
index 6c7cefec..b6899b0c 100644
--- a/src/tools/systemd/time.rs
+++ b/src/tools/systemd/time.rs
@@ -183,10 +183,10 @@ pub fn compute_next_event(
                     .find(|d| event.days.contains(WeekDays::from_bits(1<<d).unwrap()))
                 {
                     // try next day
-                    t.add_days(n - day_num, true)?;
+                    t.add_days(n - day_num,)?;
                 } else {
                     // try next week
-                    t.add_days(7 - day_num, true)?;
+                    t.add_days(7 - day_num)?;
                 }
                 continue;
             }
@@ -203,7 +203,7 @@ pub fn compute_next_event(
                     t.set_time(n as libc::c_int, 0, 0)?;
                 } else {
                     // test next day
-                    t.add_days(1, true)?;
+                    t.add_days(1)?;
                 }
                 continue;
             }
diff --git a/src/tools/systemd/tm_editor.rs b/src/tools/systemd/tm_editor.rs
index 62f8d1d0..a1cf2464 100644
--- a/src/tools/systemd/tm_editor.rs
+++ b/src/tools/systemd/tm_editor.rs
@@ -36,17 +36,14 @@ impl TmEditor {
         Ok(epoch)
     }
 
-    pub fn add_days(&mut self, days: libc::c_int, reset_time: bool) -> Result<(), Error> {
+    /// 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(()); }
-        if reset_time {
-            self.t.tm_hour = 0;
-            self.t.tm_min = 0;
-            self.t.tm_sec = 0;
-            self.changes.insert(TMChanges::HOUR|TMChanges::MIN|TMChanges::SEC);
-        }
+        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.changes.insert(TMChanges::MDAY|TMChanges::WDAY);
+        self.changes = TMChanges::all(); // adding a day can wrap the month/year too
         self.normalize_time()
     }
 
-- 
2.20.1