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Implement Linux statfs(2).

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Natalia Portillo
2015-05-03 17:44:42 +01:00
parent a816622ce7
commit 9812a0e6bd
4 changed files with 323 additions and 0 deletions
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Claunia.IO/ChangeLog
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2015-05-03 Natalia Portillo <claunia@claunia.com>
* Claunia.IO.csproj:
* Interop/Linux/Interop.Linux.types.cs:
* Interop/Linux/Interop.Linux.statfs.cs:
Implement Linux statfs(2).
2015-04-26 Natalia Portillo <claunia@claunia.com>
* Claunia.IO.csproj:

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Claunia.IO/Claunia.IO.csproj
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<Compile Include="Interop\Apple\Interop.Apple.xattr.cs" />
<Compile Include="Interop\Apple\Interop.Apple.statfs.cs" />
<Compile Include="Interop\Linux\Interop.Linux.xattr.cs" />
<Compile Include="Interop\Linux\Interop.Linux.statfs.cs" />
<Compile Include="Interop\Linux\Interop.Linux.types.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<ItemGroup>

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Claunia.IO/Interop/Linux/Interop.Linux.statfs.cs Normal file
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//
// Interop.Linux.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 Linux
{
/// <summary>
/// statfs(2) structure when __WORDSIZE is 64
/// </summary>
[StructLayout(LayoutKind.Sequential)]
internal struct StatFS64
{
/// <summary>
/// Type of filesystem (see below)
/// </summary>
Int64 f_type;
/// <summary>
/// Optimal transfer block size
/// </summary>
Int64 f_bsize;
/// <summary>
/// Total data blocks in filesystem
/// </summary>
UInt64 f_blocks;
/// <summary>
/// Free blocks in filesystem
/// </summary>
UInt64 f_bfree;
/// <summary>
/// Free blocks available to unprivileged user
/// </summary>
UInt64 f_bavail;
/// <summary>
/// Total file nodes in filesystem
/// </summary>
UInt64 f_files;
/// <summary>
/// Free file nodes in filesystem
/// </summary>
UInt64 f_ffree;
/// <summary>
/// Filesystem ID
/// </summary>
fsid_t f_fsid;
/// <summary>
/// Maximum length of filenames
/// </summary>
Int64 f_namelen;
/// <summary>
/// Fragment size (since Linux 2.6)
/// </summary>
Int64 f_frsize;
/// <summary>
/// Mount flags of filesystem (since Linux 2.6.36)
/// </summary>
Int64 f_flags;
/// <summary>
/// Padding bytes reserved for future use
/// </summary>
[MarshalAs(UnmanagedType.ByValArray,
ArraySubType = UnmanagedType.I8, SizeConst = 4)]
Int64[] f_spare;
}
/// <summary>
/// statfs(2) structure when __WORDSIZE is 32
/// </summary>
[StructLayout(LayoutKind.Sequential)]
internal struct StatFS
{
/// <summary>
/// Type of filesystem (see below)
/// </summary>
Int32 f_type;
/// <summary>
/// Optimal transfer block size
/// </summary>
Int32 f_bsize;
/// <summary>
/// Total data blocks in filesystem
/// </summary>
UInt32 f_blocks;
/// <summary>
/// Free blocks in filesystem
/// </summary>
UInt32 f_bfree;
/// <summary>
/// Free blocks available to unprivileged user
/// </summary>
UInt32 f_bavail;
/// <summary>
/// Total file nodes in filesystem
/// </summary>
UInt32 f_files;
/// <summary>
/// Free file nodes in filesystem
/// </summary>
UInt32 f_ffree;
/// <summary>
/// Filesystem ID
/// </summary>
fsid_t f_fsid;
/// <summary>
/// Maximum length of filenames
/// </summary>
Int32 f_namelen;
/// <summary>
/// Fragment size (since Linux 2.6)
/// </summary>
Int32 f_frsize;
/// <summary>
/// Mount flags of filesystem (since Linux 2.6.36)
/// </summary>
Int32 f_flags;
/// <summary>
/// Padding bytes reserved for future use
/// </summary>
[MarshalAs(UnmanagedType.ByValArray,
ArraySubType = UnmanagedType.I4, SizeConst = 4)]
Int32[] f_spare;
}
/// <summary>
/// Obtains information of the file system mounted at <paramref name="path"/>.
/// Calls to system's statfs(2)
/// Only call if __WORDSIZE == 32
/// </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);
/// <summary>
/// Obtains information of the file system mounted at <paramref name="path"/>.
/// Calls to system's statfs(2)
/// Only call if __WORDSIZE == 64
/// </summary>
/// <param name="path">Path to the filesystem mount point.</param>
/// <param name="buf"><see cref="StatFS64"/>.</param>
/// <returns>On success, 0. On failure, -1, and errno is set.</returns>
[DllImport(Libraries.Libc, SetLastError = true, EntryPoint = "statfs")]
public static extern int statfs64(string path, out StatFS64 buf);
}
}

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Claunia.IO/Interop/Linux/Interop.Linux.types.cs Normal file
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//
// Interop.Linux.types.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 Linux
{
enum f_type_t : uint
{
ADFS_SUPER_MAGIC = 0xadf5,
AFFS_SUPER_MAGIC = 0xADFF,
AFS_SUPER_MAGIC = 0x5346414F,
ANON_INODE_FS_MAGIC = 0x09041934,
AUTOFS_SUPER_MAGIC = 0x0187,
BDEVFS_MAGIC = 0x62646576,
BEFS_SUPER_MAGIC = 0x42465331,
BFS_MAGIC = 0x1BADFACE,
BINFMTFS_MAGIC = 0x42494e4d,
BTRFS_SUPER_MAGIC = 0x9123683E,
BTRFS_TEST_MAGIC = 0x73727279,
CGROUP_SUPER_MAGIC = 0x27e0eb,
CIFS_MAGIC_NUMBER = 0xFF534D42,
CODA_SUPER_MAGIC = 0x73757245,
COH_SUPER_MAGIC = 0x012FF7B7,
CRAMFS_MAGIC = 0x28cd3d45,
CRAMFS_MAGIC_WEND = 0x453dcd28,
/* magic number with the wrong endianess */
DEBUGFS_MAGIC = 0x64626720,
DEVFS_SUPER_MAGIC = 0x1373,
DEVPTS_SUPER_MAGIC = 0x1cd1,
ECRYPTFS_SUPER_MAGIC = 0xf15f,
EFIVARFS_MAGIC = 0xde5e81e4,
EFS_SUPER_MAGIC = 0x00414A53,
EXT_SUPER_MAGIC = 0x137D,
EXT2_OLD_SUPER_MAGIC = 0xEF51,
EXT2_SUPER_MAGIC = 0xEF53,
EXT3_SUPER_MAGIC = 0xEF53,
EXT4_SUPER_MAGIC = 0xEF53,
F2FS_SUPER_MAGIC = 0xF2F52010,
FUSE_SUPER_MAGIC = 0x65735546,
FUTEXFS_SUPER_MAGIC = 0xBAD1DEA,
HFS_SUPER_MAGIC = 0x4244,
HOSTFS_SUPER_MAGIC = 0x00c0ffee,
HPFS_SUPER_MAGIC = 0xF995E849,
HUGETLBFS_MAGIC = 0x958458f6,
ISOFS_SUPER_MAGIC = 0x9660,
JFFS2_SUPER_MAGIC = 0x72b6,
JFS_SUPER_MAGIC = 0x3153464a,
/// <summary>
/// /* orig. minix */
/// </summary>
MINIX_SUPER_MAGIC = 0x137F,
/// <summary>
/// /* 30 char minix */
/// </summary>
MINIX_SUPER_MAGIC2 = 0x138F,
/// <summary>
/// /* minix V2 */
/// </summary>
MINIX2_SUPER_MAGIC = 0x2468,
/// <summary>
/// /* minix V2, 30 char names */
/// </summary>
MINIX2_SUPER_MAGIC2 = 0x2478,
/// <summary>
/// /* minix V3 fs, 60 char names */
/// </summary>
MINIX3_SUPER_MAGIC = 0x4d5a,
MQUEUE_MAGIC = 0x19800202,
MSDOS_SUPER_MAGIC = 0x4d44,
MTD_INODE_FS_MAGIC = 0x11307854,
NCP_SUPER_MAGIC = 0x564c,
NFS_SUPER_MAGIC = 0x6969,
NILFS_SUPER_MAGIC = 0x3434,
NTFS_SB_MAGIC = 0x5346544e,
OCFS2_SUPER_MAGIC = 0x7461636f,
OPENPROM_SUPER_MAGIC = 0x9fa1,
PIPEFS_MAGIC = 0x50495045,
PROC_SUPER_MAGIC = 0x9fa0,
PSTOREFS_MAGIC = 0x6165676C,
QNX4_SUPER_MAGIC = 0x002f,
QNX6_SUPER_MAGIC = 0x68191122,
RAMFS_MAGIC = 0x858458f6,
REISERFS_SUPER_MAGIC = 0x52654973,
ROMFS_MAGIC = 0x7275,
SELINUX_MAGIC = 0xf97cff8c,
SECURITYFS_MAGIC = 0x73636673,
SMACK_MAGIC = 0x43415d53,
SMB_SUPER_MAGIC = 0x517B,
SOCKFS_MAGIC = 0x534F434B,
SQUASHFS_MAGIC = 0x73717368,
STACK_END_MAGIC = 0x57AC6E9D,
SYSFS_MAGIC = 0x62656572,
SYSV2_SUPER_MAGIC = 0x012FF7B6,
SYSV4_SUPER_MAGIC = 0x012FF7B5,
TMPFS_MAGIC = 0x01021994,
UDF_SUPER_MAGIC = 0x15013346,
UFS_MAGIC = 0x00011954,
USBDEVICE_SUPER_MAGIC = 0x9fa2,
V9FS_MAGIC = 0x01021997,
VXFS_SUPER_MAGIC = 0xa501FCF5,
XENFS_SUPER_MAGIC = 0xabba1974,
XENIX_SUPER_MAGIC = 0x012FF7B4,
XFS_SUPER_MAGIC = 0x58465342,
_XIAFS_SUPER_MAGIC = 0x012FD16D
}
/// <summary>
/// File system ID type
/// </summary>
struct fsid_t
{
public Int32 val1;
public Int32 val2;
}
}
}