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Kirill Smelkov
jacobsa-fuse
Commits
21ac1b6d
Commit
21ac1b6d
authored
Aug 11, 2015
by
Aaron Jacobs
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Moved Mount into its own file.
parent
81de9fb6
Changes
2
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2 changed files
with
85 additions
and
68 deletions
+85
-68
mount.go
mount.go
+84
-0
mounted_file_system.go
mounted_file_system.go
+1
-68
No files found.
mount.go
0 → 100644
View file @
21ac1b6d
// 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.
package
fuse
import
(
"fmt"
"golang.org/x/net/context"
)
// A type that knows how to serve ops read from a connection.
type
Server
interface
{
// Read and serve ops from the supplied connection until EOF. Do not return
// until all operations have been responded to. Must not be called more than
// once.
ServeOps
(
*
Connection
)
}
// Attempt to mount a file system on the given directory, using the supplied
// Server to serve connection requests. This function blocks until the file
// system is successfully mounted.
func
Mount
(
dir
string
,
server
Server
,
config
*
MountConfig
)
(
mfs
*
MountedFileSystem
,
err
error
)
{
// Initialize the struct.
mfs
=
&
MountedFileSystem
{
dir
:
dir
,
joinStatusAvailable
:
make
(
chan
struct
{}),
}
// Begin the mounting process, which will continue in the background.
ready
:=
make
(
chan
error
,
1
)
dev
,
err
:=
mount
(
dir
,
config
,
ready
)
if
err
!=
nil
{
err
=
fmt
.
Errorf
(
"mount: %v"
,
err
)
return
}
// Choose a parent context for ops.
opContext
:=
config
.
OpContext
if
opContext
==
nil
{
opContext
=
context
.
Background
()
}
// Create a Connection object wrapping the device.
connection
,
err
:=
newConnection
(
opContext
,
config
.
DebugLogger
,
config
.
ErrorLogger
,
dev
)
if
err
!=
nil
{
err
=
fmt
.
Errorf
(
"newConnection: %v"
,
err
)
return
}
// Serve the connection in the background. When done, set the join status.
go
func
()
{
server
.
ServeOps
(
connection
)
mfs
.
joinStatus
=
connection
.
close
()
close
(
mfs
.
joinStatusAvailable
)
}()
// Wait for the mount process to complete.
if
err
=
<-
ready
;
err
!=
nil
{
err
=
fmt
.
Errorf
(
"mount (background): %v"
,
err
)
return
}
return
}
mounted_file_system.go
View file @
21ac1b6d
...
@@ -14,19 +14,7 @@
...
@@ -14,19 +14,7 @@
package
fuse
package
fuse
import
(
import
"golang.org/x/net/context"
"fmt"
"golang.org/x/net/context"
)
// A type that knows how to serve ops read from a connection.
type
Server
interface
{
// Read and serve ops from the supplied connection until EOF. Do not return
// until all operations have been responded to. Must not be called more than
// once.
ServeOps
(
*
Connection
)
}
// A struct representing the status of a mount operation, with a method that
// A struct representing the status of a mount operation, with a method that
// waits for unmounting.
// waits for unmounting.
...
@@ -58,58 +46,3 @@ func (mfs *MountedFileSystem) Join(ctx context.Context) error {
...
@@ -58,58 +46,3 @@ func (mfs *MountedFileSystem) Join(ctx context.Context) error {
return
ctx
.
Err
()
return
ctx
.
Err
()
}
}
}
}
// Attempt to mount a file system on the given directory, using the supplied
// Server to serve connection requests. This function blocks until the file
// system is successfully mounted.
func
Mount
(
dir
string
,
server
Server
,
config
*
MountConfig
)
(
mfs
*
MountedFileSystem
,
err
error
)
{
// Initialize the struct.
mfs
=
&
MountedFileSystem
{
dir
:
dir
,
joinStatusAvailable
:
make
(
chan
struct
{}),
}
// Begin the mounting process, which will continue in the background.
ready
:=
make
(
chan
error
,
1
)
dev
,
err
:=
mount
(
dir
,
config
,
ready
)
if
err
!=
nil
{
err
=
fmt
.
Errorf
(
"mount: %v"
,
err
)
return
}
// Choose a parent context for ops.
opContext
:=
config
.
OpContext
if
opContext
==
nil
{
opContext
=
context
.
Background
()
}
// Create a Connection object wrapping the device.
connection
,
err
:=
newConnection
(
opContext
,
config
.
DebugLogger
,
config
.
ErrorLogger
,
dev
)
if
err
!=
nil
{
err
=
fmt
.
Errorf
(
"newConnection: %v"
,
err
)
return
}
// Serve the connection in the background. When done, set the join status.
go
func
()
{
server
.
ServeOps
(
connection
)
mfs
.
joinStatus
=
connection
.
close
()
close
(
mfs
.
joinStatusAvailable
)
}()
// Wait for the mount process to complete.
if
err
=
<-
ready
;
err
!=
nil
{
err
=
fmt
.
Errorf
(
"mount (background): %v"
,
err
)
return
}
return
}
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