mirror of
https://github.com/minio/minio.git
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113 lines
3.1 KiB
Go
113 lines
3.1 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
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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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*/
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package main
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import (
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"os"
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"path/filepath"
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"sync"
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"github.com/minio/minio/pkg/disk"
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"github.com/minio/minio/pkg/probe"
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)
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// listObjectParams - list object params used for list object map
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type listObjectParams struct {
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bucket string
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delimiter string
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marker string
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prefix string
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}
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// listMultipartObjectParams - list multipart object params used for list multipart object map
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type listMultipartObjectParams struct {
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bucket string
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delimiter string
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keyMarker string
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prefix string
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uploadIDMarker string
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}
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// Filesystem - local variables
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type Filesystem struct {
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diskPath string
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minFreeDisk int64
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rwLock *sync.RWMutex
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listObjectMap map[listObjectParams][]*treeWalker
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listObjectMapMutex *sync.Mutex
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listMultipartObjectMap map[listMultipartObjectParams][]multipartObjectInfoChannel
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listMultipartObjectMapMutex *sync.Mutex
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}
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// newFS instantiate a new filesystem.
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func newFS(diskPath string) (ObjectAPI, *probe.Error) {
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fs := &Filesystem{
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rwLock: &sync.RWMutex{},
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}
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fs.diskPath = diskPath
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/// Defaults
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// Minium free disk required for i/o operations to succeed.
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fs.minFreeDisk = 5
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// Initialize list object map.
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fs.listObjectMap = make(map[listObjectParams][]*treeWalker)
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fs.listObjectMapMutex = &sync.Mutex{}
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// Initialize list multipart map.
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fs.listMultipartObjectMap = make(map[listMultipartObjectParams][]multipartObjectInfoChannel)
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fs.listMultipartObjectMapMutex = &sync.Mutex{}
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// Return here.
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return fs, nil
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}
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func (fs Filesystem) checkBucketArg(bucket string) (string, error) {
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if !IsValidBucketName(bucket) {
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return "", BucketNameInvalid{Bucket: bucket}
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}
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bucket = getActualBucketname(fs.diskPath, bucket)
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if status, e := isDirExist(filepath.Join(fs.diskPath, bucket)); !status {
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if e == nil {
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return "", BucketNotFound{Bucket: bucket}
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} else if os.IsNotExist(e) {
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return "", BucketNotFound{Bucket: bucket}
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} else {
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return "", e
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}
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}
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return bucket, nil
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}
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func checkDiskFree(diskPath string, minFreeDisk int64) error {
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di, e := disk.GetInfo(diskPath)
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if e != nil {
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return e
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}
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// Remove 5% from total space for cumulative disk space used for journalling, inodes etc.
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availableDiskSpace := (float64(di.Free) / (float64(di.Total) - (0.05 * float64(di.Total)))) * 100
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if int64(availableDiskSpace) <= minFreeDisk {
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return RootPathFull{Path: diskPath}
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}
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return nil
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}
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// GetRootPath - get root path.
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func (fs Filesystem) GetRootPath() string {
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return fs.diskPath
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}
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