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// 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 linux

// semctl Command Definitions. Source: include/uapi/linux/sem.h
const (
	GETPID  = 11
	GETVAL  = 12
	GETALL  = 13
	GETNCNT = 14
	GETZCNT = 15
	SETVAL  = 16
	SETALL  = 17
)

// ipcs ctl cmds. Source: include/uapi/linux/sem.h
const (
	SEM_STAT     = 18
	SEM_INFO     = 19
	SEM_STAT_ANY = 20
)

const SEM_UNDO = 0x1000

// SemidDS is equivalent to struct semid64_ds.
type SemidDS struct {
	SemPerm  IPCPerm
	SemOTime TimeT
	SemCTime TimeT
	SemNSems uint64
	unused3  uint64
	unused4  uint64
}

// Sembuf is equivalent to struct sembuf.
type Sembuf struct {
	SemNum uint16
	SemOp  int16
	SemFlg int16
}