sem.go

// 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 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
)

const SEM_UNDO = 0x1000

// SemidDS is equivalent to struct semid_ds.
type SemidDS struct {
	SemPerm   IPCPerm
	SemOTime  TimeT
	reserved1 uint32
	SemCTime  TimeT
	reserved2 uint32
	SemNSems  uint32
	reserved3 uint32
	reserved4 uint32
}

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