30 lines
950 B
Go
30 lines
950 B
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 host
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// beforeSave is invoked by stateify.
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func (d *descriptor) beforeSave() {
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if d.donated && d.origFD < 0 {
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panic("donated file descriptor cannot be saved")
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}
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}
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// afterLoad is invoked by stateify.
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func (d *descriptor) afterLoad() {
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// value must be manually restored by the descriptor's parent using
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// initAfterLoad.
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d.value = -1
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}
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