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Implement FreeBSD's statfs(2).

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Natalia Portillo
2015-05-03 20:18:06 +01:00
parent ddde639ae2
commit 0af974f80f
4 changed files with 194 additions and 0 deletions
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Claunia.IO/ChangeLog
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@@ -1,3 +1,10 @@
2015-05-03 Natalia Portillo <claunia@claunia.com>
* Claunia.IO.csproj:
* Interop/FreeBSD/Interop.FreeBSD.types.cs:
* Interop/FreeBSD/Interop.FreeBSD.statfs.cs:
Implement FreeBSD's statfs(2).
2015-05-03 Natalia Portillo <claunia@claunia.com>
* Claunia.IO.csproj:

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Claunia.IO/Claunia.IO.csproj
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@@ -65,6 +65,7 @@
<Compile Include="Interop\FreeBSD\Interop.FreeBSD.uname.cs" />
<Compile Include="Interop\FreeBSD\Interop.FreeBSD.stat.cs" />
<Compile Include="Interop\FreeBSD\Interop.FreeBSD.types.cs" />
<Compile Include="Interop\FreeBSD\Interop.FreeBSD.statfs.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<ItemGroup>

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Claunia.IO/Interop/FreeBSD/Interop.FreeBSD.statfs.cs Normal file
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@@ -0,0 +1,104 @@
//
// Interop.FreeBSD.stat.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2015 © Claunia.com
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System.Runtime.InteropServices;
using System;
internal static partial class Interop
{
internal static partial class FreeBSD
{
/// <summary>
/// statfs(2) structure
/// </summary>
[StructLayout(LayoutKind.Sequential)]
internal struct StatFS
{
/// <summary>structure version number</summary>
UInt32 f_version;
/// <summary>type of filesystem</summary>
UInt32 f_type;
/// <summary>copy of mount exported flags</summary>
mntflags_t f_flags;
/// <summary>filesystem fragment size</summary>
UInt64 f_bsize;
/// <summary>optimal transfer block size</summary>
UInt64 f_iosize;
/// <summary>total data blocks in filesystem</summary>
UInt64 f_blocks;
/// <summary>free blocks in filesystem</summary>
UInt64 f_bfree;
/// <summary>free blocks avail to non-superuser</summary>
Int64 f_bavail;
/// <summary>total file nodes in filesystem</summary>
UInt64 f_files;
/// <summary>free nodes avail to non-superuser</summary>
Int64 f_ffree;
/// <summary>count of sync writes since mount</summary>
UInt64 f_syncwrites;
/// <summary>count of async writes since mount</summary>
UInt64 f_asyncwrites;
/// <summary>count of sync reads since mount</summary>
UInt64 f_syncreads;
/// <summary>count of async reads since mount</summary>
UInt64 f_asyncreads;
/// <summary>unused spare</summary>
[MarshalAs(UnmanagedType.ByValArray,
ArraySubType = UnmanagedType.U8, SizeConst = 10)]
[Obsolete("RESERVED: DO NOT USE")]
UInt64[] f_spare;
/// <summary>maximum filename length</summary>
UInt32 f_namemax;
/// <summary>user that mounted the filesystem</summary>
UInt32 f_owner;
/// <summary>filesystem id</summary>
fsid_t f_fsid;
/// <summary>spare string space</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
string f_charspare;
/// <summary>filesystem type name</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 16)]
string f_fstypename;
/// <summary>mounted filesystem</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 88)]
string f_mntfromname;
/// <summary>directory on which mounted</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 88)]
string f_mntonname;
}
/// <summary>
/// Obtains information of the file system mounted at <paramref name="path"/>.
/// Calls to system's statfs(2)
/// </summary>
/// <param name="path">Path to the filesystem mount point.</param>
/// <param name="buf"><see cref="StatFS"/>.</param>
/// <returns>On success, 0. On failure, -1, and errno is set.</returns>
[DllImport(Libraries.Libc, SetLastError = true)]
public static extern int statfs(string path, out StatFS buf);
}
}

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Claunia.IO/Interop/FreeBSD/Interop.FreeBSD.types.cs
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@@ -59,5 +59,87 @@ internal static partial class Interop
[MarshalAs(UnmanagedType.I4)]
public Int64 tv_nsec;
}
/// <summary>
/// File system ID type
/// </summary>
struct fsid_t
{
public Int32 val1;
public Int32 val2;
}
[Flags]
enum mntflags_t : UInt64
{
MNT_RDONLY = 0x0000000000000001,
/// <summary>read only filesystem</summary>
MNT_SYNCHRONOUS = 0x0000000000000002,
/// <summary>fs written synchronously</summary>
MNT_NOEXEC = 0x0000000000000004,
/// <summary>can't exec from filesystem</summary>
MNT_NOSUID = 0x0000000000000008,
/// <summary>don't honor setuid fs bits</summary>
MNT_NFS4ACLS = 0x0000000000000010,
/// <summary>enable NFS version 4 ACLs</summary>
MNT_UNION = 0x0000000000000020,
/// <summary>union with underlying fs</summary>
MNT_ASYNC = 0x0000000000000040,
/// <summary>fs written asynchronously</summary>
MNT_SUIDDIR = 0x0000000000100000,
/// <summary>special SUID dir handling</summary>
MNT_SOFTDEP = 0x0000000000200000,
/// <summary>using soft updates</summary>
MNT_NOSYMFOLLOW = 0x0000000000400000,
/// <summary>do not follow symlinks</summary>
MNT_GJOURNAL = 0x0000000002000000,
/// <summary>GEOM journal support enabled</summary>
MNT_MULTILABEL = 0x0000000004000000,
/// <summary>MAC support for objects</summary>
MNT_ACLS = 0x0000000008000000,
/// <summary>ACL support enabled</summary>
MNT_NOATIME = 0x0000000010000000,
/// <summary>dont update file access time</summary>
MNT_NOCLUSTERR = 0x0000000040000000,
/// <summary>disable cluster read</summary>
MNT_NOCLUSTERW = 0x0000000080000000,
/// <summary>disable cluster write</summary>
MNT_SUJ = 0x0000000100000000,
/// <summary>using journaled soft updates</summary>
MNT_AUTOMOUNTED = 0x0000000200000000,
/// <summary>mounted by automountd(8)</summary>
/*
* NFS export related mount flags.
*/
MNT_EXRDONLY = 0x0000000000000080,
/// <summary>exported read only</summary>
MNT_EXPORTED = 0x0000000000000100,
/// <summary>filesystem is exported</summary>
MNT_DEFEXPORTED = 0x0000000000000200,
/// <summary>exported to the world</summary>
MNT_EXPORTANON = 0x0000000000000400,
/// <summary>anon uid mapping for all</summary>
MNT_EXKERB = 0x0000000000000800,
/// <summary>exported with Kerberos</summary>
MNT_EXPUBLIC = 0x0000000020000000,
/// <summary>public export (WebNFS)</summary>
/*
* Flags set by internal operations,
* but visible to the user.
* XXX some of these are not quite right.. (I've never seen the root flag set)
*/
MNT_LOCAL = 0x0000000000001000,
/// <summary>filesystem is stored locally</summary>
MNT_QUOTA = 0x0000000000002000,
/// <summary>quotas are enabled on fs</summary>
MNT_ROOTFS = 0x0000000000004000,
/// <summary>identifies the root fs</summary>
MNT_USER = 0x0000000000008000,
/// <summary>mounted by a user</summary>
MNT_IGNORE = 0x0000000000800000
/// <summary>do not show entry in df</summary>
}
}
}