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// Copyright 2018 Google Inc.
//
// 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 tty
import (
"gvisor.googlesource.com/gvisor/pkg/abi/linux"
"gvisor.googlesource.com/gvisor/pkg/refs"
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
)
// Terminal is a pseudoterminal.
//
// +stateify savable
type Terminal struct {
refs.AtomicRefCount
// n is the terminal index.
n uint32
// d is the containing directory.
d *dirInodeOperations
// ld is the line discipline of the terminal.
ld *lineDiscipline
}
func newTerminal(ctx context.Context, d *dirInodeOperations, n uint32) *Terminal {
termios := linux.DefaultSlaveTermios
return &Terminal{
d: d,
n: n,
ld: newLineDiscipline(termios),
}
}
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