blob: 873c4eb5599d8b755e3c6ec37f0f93501911c120 (
plain)
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
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using Microsoft.Win32.SafeHandles;
using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;
namespace System.IO
{
public partial class FileStream : Stream
{
/// <summary>Prevents other processes from reading from or writing to the FileStream.</summary>
/// <param name="position">The beginning of the range to lock.</param>
/// <param name="length">The range to be locked.</param>
private void LockInternal(long position, long length)
{
CheckFileCall(Interop.Sys.LockFileRegion(_fileHandle, position, length, Interop.Sys.LockType.F_WRLCK));
}
/// <summary>Allows access by other processes to all or part of a file that was previously locked.</summary>
/// <param name="position">The beginning of the range to unlock.</param>
/// <param name="length">The range to be unlocked.</param>
private void UnlockInternal(long position, long length)
{
CheckFileCall(Interop.Sys.LockFileRegion(_fileHandle, position, length, Interop.Sys.LockType.F_UNLCK));
}
}
}
|