Fix offset calculation (fixes rust-in-action#51)

timClicks · web-flow · commit 39e24d705003 · 2021-11-04T21:56:42.000+13:00
diff --git a/ch9/ch9-clock3/src/main.rs b/ch9/ch9-clock3/src/main.rs
@@ -39,8 +39,8 @@ struct NTPResult {
 
 impl NTPResult {
   fn offset(&self) -> i64 {
-    let duration = (self.t2 - self.t1) + (self.t4 - self.t3);
-    duration.num_milliseconds() / 2
+    let delta = self.delay();
+    delta.abs() / 2
   }
 
   fn delay(&self) -> i64 {

Original file line number	Diff line number	Diff line change
`@@ -39,8 +39,8 @@ struct NTPResult {`
`39`	`39`
`40`	`40`	`impl NTPResult {`
`41`	`41`	`fn offset(&self) -> i64 {`
`42`		`- let duration = (self.t2 - self.t1) + (self.t4 - self.t3);`
`43`		`- duration.num_milliseconds() / 2`
	`42`	`+ let delta = self.delay();`
	`43`	`+ delta.abs() / 2`
`44`	`44`	`}`
`45`	`45`
`46`	`46`	`fn delay(&self) -> i64 {`