/usr/share/gocode/src/github.com/jacobsa/fuse/samples/mount_sample/mount.go is in golang-github-jacobsa-fuse-dev 0.0~git20150806.0.9a7512a-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | // Copyright 2015 Google Inc. All Rights Reserved.
//
// 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.
// A simple tool for mounting sample file systems, used by the tests in
// samples/.
package main
import (
"errors"
"flag"
"fmt"
"log"
"os"
"runtime"
"syscall"
"github.com/jacobsa/fuse"
"github.com/jacobsa/fuse/samples/flushfs"
"golang.org/x/net/context"
)
var fType = flag.String("type", "", "The name of the samples/ sub-dir.")
var fMountPoint = flag.String("mount_point", "", "Path to mount point.")
var fReadyFile = flag.Uint64("ready_file", 0, "FD to signal when ready.")
var fFlushesFile = flag.Uint64("flushfs.flushes_file", 0, "")
var fFsyncsFile = flag.Uint64("flushfs.fsyncs_file", 0, "")
var fFlushError = flag.Int("flushfs.flush_error", 0, "")
var fFsyncError = flag.Int("flushfs.fsync_error", 0, "")
var fReadOnly = flag.Bool("read_only", false, "Mount in read-only mode.")
var fDebug = flag.Bool("debug", false, "Enable debug logging.")
func makeFlushFS() (server fuse.Server, err error) {
// Check the flags.
if *fFlushesFile == 0 || *fFsyncsFile == 0 {
err = fmt.Errorf("You must set the flushfs flags.")
return
}
// Set up the files.
flushes := os.NewFile(uintptr(*fFlushesFile), "(flushes file)")
fsyncs := os.NewFile(uintptr(*fFsyncsFile), "(fsyncs file)")
// Set up errors.
var flushErr error
var fsyncErr error
if *fFlushError != 0 {
flushErr = syscall.Errno(*fFlushError)
}
if *fFsyncError != 0 {
fsyncErr = syscall.Errno(*fFsyncError)
}
// Report flushes and fsyncs by writing the contents followed by a newline.
report := func(f *os.File, outErr error) func(string) error {
return func(s string) (err error) {
buf := []byte(s)
buf = append(buf, '\n')
_, err = f.Write(buf)
if err != nil {
err = fmt.Errorf("Write: %v", err)
return
}
err = outErr
return
}
}
reportFlush := report(flushes, flushErr)
reportFsync := report(fsyncs, fsyncErr)
// Create the file system.
server, err = flushfs.NewFileSystem(reportFlush, reportFsync)
return
}
func makeFS() (server fuse.Server, err error) {
switch *fType {
default:
err = fmt.Errorf("Unknown FS type: %v", *fType)
case "flushfs":
server, err = makeFlushFS()
}
return
}
func getReadyFile() (f *os.File, err error) {
if *fReadyFile == 0 {
err = errors.New("You must set --ready_file.")
return
}
f = os.NewFile(uintptr(*fReadyFile), "(ready file)")
return
}
func main() {
flag.Parse()
// Allow parallelism in the file system implementation, to help flush out
// bugs like https://github.com/jacobsa/fuse/issues/4.
runtime.GOMAXPROCS(2)
// Grab the file to signal when ready.
readyFile, err := getReadyFile()
if err != nil {
log.Fatalf("getReadyFile:", err)
}
// Create an appropriate file system.
server, err := makeFS()
if err != nil {
log.Fatalf("makeFS: %v", err)
}
// Mount the file system.
if *fMountPoint == "" {
log.Fatalf("You must set --mount_point.")
}
cfg := &fuse.MountConfig{
ReadOnly: *fReadOnly,
}
if *fDebug {
cfg.DebugLogger = log.New(os.Stderr, "fuse: ", 0)
}
mfs, err := fuse.Mount(*fMountPoint, server, cfg)
if err != nil {
log.Fatalf("Mount: %v", err)
}
// Signal that it is ready.
_, err = readyFile.Write([]byte("x"))
if err != nil {
log.Fatalf("readyFile.Write: %v", err)
}
// Wait for it to be unmounted.
if err = mfs.Join(context.Background()); err != nil {
log.Fatalf("Join: %v", err)
}
}
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