opt bit rotate operation

Sun Yu · Sun Yu · commit a868d6a6f962 · 2020-06-11T14:39:22.000+01:00
diff --git a/timeout.c b/timeout.c
@@ -408,7 +408,7 @@ TIMEOUT_PUBLIC void timeouts_update(struct timeouts *T, abstime_t curtime) {
 			nslot = WHEEL_MASK & (curtime >> (wheel * WHEEL_BIT));
 			_elapsed = WHEEL_MASK & (WHEEL_LEN + nslot - oslot);
 
-			pending = rotr(rotl(((WHEEL_C(1) << _elapsed) - 1), nslot + 1), _elapsed);
+			pending = rotl(((WHEEL_C(1) << _elapsed) - 1), oslot + 1);
 		}
 
 		while (pending & T->pending[wheel]) {

Original file line number	Diff line number	Diff line change
`@@ -408,7 +408,7 @@ TIMEOUT_PUBLIC void timeouts_update(struct timeouts *T, abstime_t curtime) {`
`408`	`408`	`nslot = WHEEL_MASK & (curtime >> (wheel * WHEEL_BIT));`
`409`	`409`	`_elapsed = WHEEL_MASK & (WHEEL_LEN + nslot - oslot);`
`410`	`410`
`411`		`- pending = rotr(rotl(((WHEEL_C(1) << _elapsed) - 1), nslot + 1), _elapsed);`
	`411`	`+ pending = rotl(((WHEEL_C(1) << _elapsed) - 1), oslot + 1);`
`412`	`412`	`}`
`413`	`413`
`414`	`414`	`while (pending & T->pending[wheel]) {`