mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Nayana Bidari
a3e5887415
- Added a new Stats() method in inet.Stack to get the saved stats during restore. - Mark stack.nic, tcpip.Route and stack.addressState structs as "nosave". These fields should not be saved because the IP addresses and routes can change during restore and new configuration of routes and IP addresses will be extracted from the restore spec and initialized in the saved stack. - Changes in Restore() method in icmp, udp, tcp, packet and raw endpoint files to support save restore of these endpoints. These changes are flag guarded by the TESTONLY-save-restore-netstack flag. PiperOrigin-RevId: 707639274
49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package kernel
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import (
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"context"
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"gvisor.dev/gvisor/pkg/sentry/time"
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)
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// beforeSave is invoked by stateify.
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func (t *Timekeeper) beforeSave() {
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if t.stop != nil {
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panic("pauseUpdates must be called before Save")
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}
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if t.clocks == nil {
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t.restored = nil
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return
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}
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// N.B. we want the *offset* monotonic time.
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var err error
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if t.saveMonotonic, err = t.GetTime(time.Monotonic); err != nil {
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panic("unable to get current monotonic time: " + err.Error())
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}
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if t.saveRealtime, err = t.GetTime(time.Realtime); err != nil {
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panic("unable to get current realtime: " + err.Error())
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}
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}
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// afterLoad is invoked by stateify.
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func (t *Timekeeper) afterLoad(context.Context) {
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t.restored = make(chan struct{})
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}
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