disk_avail_openbsd.go

// Copyright 2021 The NATS Authors
// 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.

//go:build openbsd

package server

import (
"os"
"syscall"
)

funcdiskAvailable(storeDirstring) int64 {
varbaint64
if_, err:=os.Stat(storeDir); os.IsNotExist(err) {
os.MkdirAll(storeDir, defaultDirPerms)
 }
varfs syscall.Statfs_t
iferr:=syscall.Statfs(storeDir, &fs); err==nil {
// Estimate 75% of available storage.
ba=int64(uint64(fs.F_bavail) *uint64(fs.F_bsize) /4*3)
 } else {
// Used 1TB default as a guess if all else fails.
ba=JetStreamMaxStoreDefault
 }
returnba
}