class/Mono.Posix/Mono.Unix/UnixFileInfo.cs

   1 //
   2 // Mono.Unix/UnixFileInfo.cs
   3 //
   4 // Authors:
   5 //   Jonathan Pryor (jonpryor@vt.edu)
   6 //
   7 // (C) 2004-2006 Jonathan Pryor
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.IO;
  31 using System.Text;
  32 using Mono.Unix;
  33
  34 namespace Mono.Unix {
  35
  36         public sealed class UnixFileInfo : UnixFileSystemInfo
  37         {
  38                 public UnixFileInfo (string path)
  39                         : base (path)
  40                 {
  41                 }
  42
  43                 internal UnixFileInfo (string path, Native.Stat stat)
  44                         : base (path, stat)
  45                 {
  46                 }
  47
  48                 public override string Name {
  49                         get {return UnixPath.GetFileName (FullPath);}
  50                 }
  51
  52                 public string DirectoryName {
  53                         get {return UnixPath.GetDirectoryName (FullPath);}
  54                 }
  55
  56                 public UnixDirectoryInfo Directory {
  57                         get {return new UnixDirectoryInfo (DirectoryName);}
  58                 }
  59
  60                 public override void Delete ()
  61                 {
  62                         int r = Native.Syscall.unlink (FullPath);
  63                         UnixMarshal.ThrowExceptionForLastErrorIf (r);
  64                         base.Refresh ();
  65                 }
  66
  67                 public UnixStream Create ()
  68                 {
  69                         Native.FilePermissions mode = // 0644
  70                                 Native.FilePermissions.S_IRUSR | Native.FilePermissions.S_IWUSR |
  71                                 Native.FilePermissions.S_IRGRP | Native.FilePermissions.S_IROTH;
  72                         return Create (mode);
  73                 }
  74
  75                 [CLSCompliant (false)]
  76                 public UnixStream Create (Native.FilePermissions mode)
  77                 {
  78                         int fd = Native.Syscall.creat (FullPath, mode);
  79                         if (fd < 0)
  80                                 UnixMarshal.ThrowExceptionForLastError ();
  81                         base.Refresh ();
  82                         return new UnixStream (fd);
  83                 }
  84
  85                 public UnixStream Create (FileAccessPermissions mode)
  86                 {
  87                         return Create ((Native.FilePermissions) mode);
  88                 }
  89
  90                 [CLSCompliant (false)]
  91                 public UnixStream Open (Native.OpenFlags flags)
  92                 {
  93                         if ((flags & Native.OpenFlags.O_CREAT) != 0)
  94                                 throw new ArgumentException (
  95                                                 "Cannot specify OpenFlags.O_CREAT without providing " +
  96                                                 "FilePermissions.  Use the Open(OpenFlags, FilePermissions) " +
  97                                                 "method instead");
  98                         int fd = Native.Syscall.open (FullPath, flags);
  99                         if (fd < 0)
 100                                 UnixMarshal.ThrowExceptionForLastError ();
 101                         return new UnixStream (fd);
 102                 }
 103
 104                 [CLSCompliant (false)]
 105                 public UnixStream Open (Native.OpenFlags flags, Native.FilePermissions mode)
 106                 {
 107                         int fd = Native.Syscall.open (FullPath, flags, mode);
 108                         if (fd < 0)
 109                                 UnixMarshal.ThrowExceptionForLastError ();
 110                         return new UnixStream (fd);
 111                 }
 112
 113                 public UnixStream Open (FileMode mode)
 114                 {
 115                         Native.OpenFlags flags = Native.NativeConvert.ToOpenFlags (mode, FileAccess.ReadWrite);
 116                         return Open (flags);
 117                 }
 118
 119                 public UnixStream Open (FileMode mode, FileAccess access)
 120                 {
 121                         Native.OpenFlags flags = Native.NativeConvert.ToOpenFlags (mode, access);
 122                         return Open (flags);
 123                 }
 124
 125                 [CLSCompliant (false)]
 126                 public UnixStream Open (FileMode mode, FileAccess access, Native.FilePermissions perms)
 127                 {
 128                         Native.OpenFlags flags = Native.NativeConvert.ToOpenFlags (mode, access);
 129                         int fd = Native.Syscall.open (FullPath, flags, perms);
 130                         if (fd < 0)
 131                                 UnixMarshal.ThrowExceptionForLastError ();
 132                         return new UnixStream (fd);
 133                 }
 134
 135                 public UnixStream OpenRead ()
 136                 {
 137                         return Open (FileMode.Open, FileAccess.Read);
 138                 }
 139
 140                 public UnixStream OpenWrite ()
 141                 {
 142                         return Open (FileMode.OpenOrCreate, FileAccess.Write);
 143                 }
 144         }
 145 }
 146
 147 // vim: noexpandtab