gvisor/pkg/sentry/kernel/pending_signals_state.go

47 lines
1.3 KiB
Go

// Copyright 2018 Google LLC
//
// 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 kernel
import (
"gvisor.googlesource.com/gvisor/pkg/sentry/arch"
)
// +stateify savable
type savedPendingSignal struct {
si *arch.SignalInfo
timer *IntervalTimer
}
// saveSignals is invoked by stateify.
func (p *pendingSignals) saveSignals() []savedPendingSignal {
var pending []savedPendingSignal
for _, q := range p.signals {
for ps := q.pendingSignalList.Front(); ps != nil; ps = ps.Next() {
pending = append(pending, savedPendingSignal{
si: ps.SignalInfo,
timer: ps.timer,
})
}
}
return pending
}
// loadSignals is invoked by stateify.
func (p *pendingSignals) loadSignals(pending []savedPendingSignal) {
for _, sps := range pending {
p.enqueue(sps.si, sps.timer)
}
}