code review 53010043: runtime: Use same [monotonic] reference clock for all timer values

src/pkg/net/fd_poll_runtime.go

Index: src/pkg/net/fd_poll_runtime.go
===================================================================
--- a/src/pkg/net/fd_poll_runtime.go
+++ b/src/pkg/net/fd_poll_runtime.go
@@ -12,6 +12,9 @@
 	"time"
 )
 
+// runtimeNano returns the current value of the runtime clock in nanoseconds.
+func runtimeNano() int64
+
 func runtime_pollServerInit()
 func runtime_pollOpen(fd uintptr) (uintptr, int)
 func runtime_pollClose(ctx uintptr)
@@ -128,7 +131,7 @@
 }
 
 func setDeadlineImpl(fd *netFD, t time.Time, mode int) error {
-	d := t.UnixNano()
+	d := runtimeNano() + int64(t.Sub(time.Now()))
 	if t.IsZero() {
 		d = 0
 	}