runtime: handle timers on P's in procresize/(*pp).destroy

Updates #6239
Updates #27707

Change-Id: I52cab8bf3dc8c552463725fc1d9e4e6b12230b03
Reviewed-on: https://go-review.googlesource.com/c/go/+/171828
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/runtime/time.go b/src/runtime/time.go
index 1bbb5684cb..0148f47a9e 100644
--- a/src/runtime/time.go
+++ b/src/runtime/time.go
@@ -325,6 +325,14 @@ func timerproc(tb *timersBucket) {
 	}
 }
 
+// moveTimers moves a slice of timers to pp. The slice has been taken
+// from a different P.
+// This is currently called when the world is stopped, but it could
+// work as long as the timers for pp are locked.
+func moveTimers(pp *p, timers []*timer) {
+	throw("movetimers: not yet implemented")
+}
+
 // adjusttimers looks through the timers in the current P's heap for
 // any timers that have been modified to run earlier, and puts them in
 // the correct place in the heap.