Store timestamps as time.Time

Rather than boiling down to an integer eagerly, do it as late as possible.

PiperOrigin-RevId: 401599308

1 files changed, 31 insertions, 0 deletions

diff --git a/pkg/sentry/socket/netstack/netstack_state.go b/pkg/sentry/socket/netstack/netstack_state.go
new file mode 100644
index 000000000..591e00d42
--- /dev/null
+++ b/pkg/sentry/socket/netstack/netstack_state.go
@@ -0,0 +1,31 @@
+// Copyright 2021 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package netstack
+
+import (
+	"time"
+)
+
+func (s *socketOpsCommon) saveTimestamp() int64 {
+	s.readMu.Lock()
+	defer s.readMu.Unlock()
+	return s.timestamp.UnixNano()
+}
+
+func (s *socketOpsCommon) loadTimestamp(nsec int64) {
+	s.readMu.Lock()
+	defer s.readMu.Unlock()
+	s.timestamp = time.Unix(0, nsec)
+}