github.com/keybase/client/go@v0.0.0-20240309051027-028f7c731f8b/kbfs/libfuse/open_file_count_file.go (about)

     1  // Copyright 2019 Keybase Inc. All rights reserved.
     2  // Use of this source code is governed by a BSD
     3  // license that can be found in the LICENSE file.
     4  //
     5  //go:build !windows
     6  // +build !windows
     7  
     8  package libfuse
     9  
    10  import (
    11  	"strconv"
    12  	"time"
    13  
    14  	"golang.org/x/net/context"
    15  )
    16  
    17  // NewOpenFileCountFile returns a special read file that contains the
    18  // number of files and directories currently being held open by the OS.
    19  func NewOpenFileCountFile(
    20  	folder *Folder, entryValid *time.Duration) *SpecialReadFile {
    21  	*entryValid = 0
    22  	return &SpecialReadFile{
    23  		read: func(_ context.Context) ([]byte, time.Time, error) {
    24  			count := folder.fs.root.openFileCount()
    25  			return []byte(strconv.FormatInt(count, 10)),
    26  				folder.fs.config.Clock().Now(), nil
    27  		},
    28  	}
    29  }