80 lines
2.5 KiB
Go
80 lines
2.5 KiB
Go
// Copyright 2018 Google LLC
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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 arch
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// Special values for SignalAct.Handler.
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const (
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// SignalActDefault is SIG_DFL and specifies that the default behavior for
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// a signal should be taken.
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SignalActDefault = 0
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// SignalActIgnore is SIG_IGN and specifies that a signal should be
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// ignored.
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SignalActIgnore = 1
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)
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// Available signal flags.
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const (
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SignalFlagNoCldStop = 0x00000001
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SignalFlagNoCldWait = 0x00000002
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SignalFlagSigInfo = 0x00000004
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SignalFlagRestorer = 0x04000000
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SignalFlagOnStack = 0x08000000
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SignalFlagRestart = 0x10000000
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SignalFlagInterrupt = 0x20000000
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SignalFlagNoDefer = 0x40000000
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SignalFlagResetHandler = 0x80000000
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)
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// IsSigInfo returns true iff this handle expects siginfo.
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func (s SignalAct) IsSigInfo() bool {
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return s.Flags&SignalFlagSigInfo != 0
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}
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// IsNoDefer returns true iff this SignalAct has the NoDefer flag set.
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func (s SignalAct) IsNoDefer() bool {
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return s.Flags&SignalFlagNoDefer != 0
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}
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// IsRestart returns true iff this SignalAct has the Restart flag set.
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func (s SignalAct) IsRestart() bool {
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return s.Flags&SignalFlagRestart != 0
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}
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// IsResetHandler returns true iff this SignalAct has the ResetHandler flag set.
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func (s SignalAct) IsResetHandler() bool {
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return s.Flags&SignalFlagResetHandler != 0
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}
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// IsOnStack returns true iff this SignalAct has the OnStack flag set.
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func (s SignalAct) IsOnStack() bool {
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return s.Flags&SignalFlagOnStack != 0
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}
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// HasRestorer returns true iff this SignalAct has the Restorer flag set.
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func (s SignalAct) HasRestorer() bool {
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return s.Flags&SignalFlagRestorer != 0
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}
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// NativeSignalAct is a type that is equivalent to struct sigaction in the
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// guest architecture.
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type NativeSignalAct interface {
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// SerializeFrom copies the data in the host SignalAct s into this object.
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SerializeFrom(s *SignalAct)
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// DeserializeTo copies the data in this object into the host SignalAct s.
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DeserializeTo(s *SignalAct)
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}
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