1 //------------------------------------------------------------------------------
3 // System.Environment.cs
5 // Copyright (C) 2001 Moonlight Enterprises, All Rights Reserved
7 // Author: Jim Richardson, develop@wtfo-guru.com
8 // Dan Lewis (dihlewis@yahoo.co.uk)
9 // Created: Saturday, August 11, 2001
11 //------------------------------------------------------------------------------
13 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
15 // Permission is hereby granted, free of charge, to any person obtaining
16 // a copy of this software and associated documentation files (the
17 // "Software"), to deal in the Software without restriction, including
18 // without limitation the rights to use, copy, modify, merge, publish,
19 // distribute, sublicense, and/or sell copies of the Software, and to
20 // permit persons to whom the Software is furnished to do so, subject to
21 // the following conditions:
23 // The above copyright notice and this permission notice shall be
24 // included in all copies or substantial portions of the Software.
26 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
30 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
31 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
32 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 //using System.Diagnostics;
38 using System.Collections;
39 using System.Security;
40 using System.Security.Permissions;
41 using System.Runtime.CompilerServices;
46 public sealed class Environment
49 * This is the version number of the corlib-runtime interface. When
50 * making changes to this interface (by changing the layout
51 * of classes the runtime knows about, changing icall semantics etc),
52 * increment this variable. Also increment the
53 * pair of this variable in the runtime in metadata/appdomain.c.
54 * Changes which are already detected at runtime, like the addition
55 * of icalls, do not require an increment.
57 private const int mono_corlib_version = 26;
59 private Environment ()
64 public enum SpecialFolder
65 { // TODO: Determine if these windoze style folder identifiers
66 // have unix/linux counterparts
80 DesktopDirectory = 0x10,
82 ApplicationData = 0x1a,
83 LocalApplicationData = 0x1c,
87 CommonApplicationData = 0x23,
91 CommonProgramFiles = 0x2b,
94 // TODO: Make sure the security attributes do what I expect
97 /// Gets the command line for this process
99 public static string CommandLine
100 { // TODO: Coordinate with implementor of EnvironmentPermissionAttribute
101 // [EnvironmentPermissionAttribute(SecurityAction.Demand, Read = "COMMANDLINE")]
104 // FIXME: we may need to quote, but any sane person
105 // should use GetCommandLineArgs () instead.
106 return String.Join (" ", GetCommandLineArgs ());
111 /// Gets or sets the current directory. Actually this is supposed to get
112 /// and/or set the process start directory acording to the documentation
113 /// but actually test revealed at beta2 it is just Getting/Setting the CurrentDirectory
115 public static string CurrentDirectory
117 // originally it was my thought that the external call would be made in
118 // the directory class however that class has additional security requirements
119 // so the Directory class will call this class for its get/set current directory
121 return Directory.GetCurrentDirectory ();
124 Directory.SetCurrentDirectory (value);
129 /// Gets or sets the exit code of this process
131 public extern static int ExitCode
133 [MethodImplAttribute (MethodImplOptions.InternalCall)]
135 [MethodImplAttribute (MethodImplOptions.InternalCall)]
142 public extern bool HasShutdownStarted
144 [MethodImplAttribute (MethodImplOptions.InternalCall)]
150 /// Gets the name of the local computer
152 public extern static string MachineName {
153 [MethodImplAttribute (MethodImplOptions.InternalCall)]
158 /// Gets the standard new line value
160 public extern static string NewLine {
161 [MethodImplAttribute (MethodImplOptions.InternalCall)]
166 // Support methods and fields for OSVersion property
168 static OperatingSystem os;
170 internal static extern PlatformID Platform {
171 [MethodImplAttribute (MethodImplOptions.InternalCall)]
175 [MethodImplAttribute (MethodImplOptions.InternalCall)]
176 internal static extern string GetOSVersionString ();
179 /// Gets the current OS version information
181 public static OperatingSystem OSVersion {
184 Version v = Version.CreateFromString (GetOSVersionString ());
185 os = new OperatingSystem (Platform, v);
194 public static string StackTrace {
196 System.Diagnostics.StackTrace trace = new System.Diagnostics.StackTrace (1);
197 return trace.ToString ();
202 /// Get a fully qualified path to the system directory
204 public static string SystemDirectory {
206 return GetFolderPath (SpecialFolder.System);
211 /// Get the number of milliseconds that have elapsed since the system was booted
213 public extern static int TickCount {
214 [MethodImplAttribute (MethodImplOptions.InternalCall)]
219 /// Get UserDomainName
221 public static string UserDomainName {
228 /// Gets a flag indicating whether the process is in interactive mode
231 public static bool UserInteractive {
238 /// Get the user name of current process is running under
240 public extern static string UserName
242 [MethodImplAttribute (MethodImplOptions.InternalCall)]
247 /// Get the version of the common language runtime
249 public static Version Version {
252 // FIXME: this is the version number for MS.NET 2.0 beta1.
253 // It must be changed when the final version is released.
254 return new Version (2, 0, 40607, 16);
256 return new Version (1, 1, 4322, 573);
258 return new Version (1, 0, 3705, 288);
264 /// Get the amount of physical memory mapped to process
267 public static long WorkingSet
274 [MethodImplAttribute (MethodImplOptions.InternalCall)]
275 public extern static void Exit (int exitCode);
278 /// Substitute environment variables in the argument "name"
280 public static string ExpandEnvironmentVariables (string name)
283 throw new ArgumentNullException ("name");
285 int off1 = name.IndexOf ('%');
289 int len = name.Length;
291 if (off1 == len - 1 || (off2 = name.IndexOf ('%', off1 + 1)) == -1)
294 PlatformID platform = Platform;
295 StringBuilder result = new StringBuilder ();
296 result.Append (name, 0, off1);
297 Hashtable tbl = null;
299 string var = name.Substring (off1 + 1, off2 - off1 - 1);
300 string value = GetEnvironmentVariable (var);
301 if (value == null && (int) platform != 128) {
302 // On windows, env. vars. are case insensitive
304 tbl = GetEnvironmentVariablesNoCase ();
306 value = tbl [var] as string;
314 result.Append (value);
317 if (off2 + 1 == len) {
322 off2 = (off1 + 1 == len) ? -1 : name.IndexOf ('%', off1 + 1);
325 } while (off2 != -1);
328 result.Append (name.Substring (off1));
330 return result.ToString ();
334 /// Return an array of the command line arguments of the current process
336 [MethodImplAttribute (MethodImplOptions.InternalCall)]
337 public extern static string[] GetCommandLineArgs();
340 /// Return a string containing the value of the environment
341 /// variable identifed by parameter "variable"
343 [MethodImplAttribute (MethodImplOptions.InternalCall)]
344 public extern static string GetEnvironmentVariable (string name);
346 static Hashtable GetEnvironmentVariablesNoCase ()
348 Hashtable vars = new Hashtable (CaseInsensitiveHashCodeProvider.Default,
349 CaseInsensitiveComparer.Default);
351 foreach (string name in GetEnvironmentVariableNames ()) {
352 vars [name] = GetEnvironmentVariable (name);
359 /// Return a set of all environment variables and their values
362 public static IDictionary GetEnvironmentVariables()
364 Hashtable vars = new Hashtable ();
365 foreach (string name in GetEnvironmentVariableNames ()) {
366 vars [name] = GetEnvironmentVariable (name);
373 [MethodImplAttribute (MethodImplOptions.InternalCall)]
374 private extern static string GetWindowsFolderPath (int folder);
377 /// Returns the fully qualified path of the
378 /// folder specified by the "folder" parameter
380 public static string GetFolderPath (SpecialFolder folder)
382 if ((int) Platform != 128)
383 return GetWindowsFolderPath ((int) folder);
385 string home = internalGetHome ();
387 // http://freedesktop.org/Standards/basedir-spec/basedir-spec-0.6.html
388 string data = GetEnvironmentVariable ("XDG_DATA_HOME");
389 if ((data == null) || (data == String.Empty)) {
390 data = Path.Combine (home, ".local");
391 data = Path.Combine (data, "share");
394 string config = GetEnvironmentVariable ("XDG_CONFIG_HOME");
395 if ((config == null) || (config == String.Empty)) {
396 config = Path.Combine (home, ".config");
401 // MyComputer is a virtual directory
402 case SpecialFolder.MyComputer:
406 case SpecialFolder.Personal:
408 // use FDO's CONFIG_HOME. This data will be synced across a network like the windows counterpart.
409 case SpecialFolder.ApplicationData:
411 //use FDO's DATA_HOME. This is *NOT* synced
412 case SpecialFolder.LocalApplicationData:
415 case SpecialFolder.Desktop:
417 case SpecialFolder.DesktopDirectory:
418 return Path.Combine (home, "Desktop");
420 // these simply dont exist on Linux
421 // The spec says if a folder doesnt exist, we
423 case SpecialFolder.Favorites:
424 case SpecialFolder.Programs:
425 case SpecialFolder.SendTo:
426 case SpecialFolder.StartMenu:
427 case SpecialFolder.Startup:
428 case SpecialFolder.MyMusic:
429 case SpecialFolder.MyPictures:
430 case SpecialFolder.Templates:
431 case SpecialFolder.Cookies:
432 case SpecialFolder.History:
433 case SpecialFolder.InternetCache:
434 case SpecialFolder.Recent:
435 case SpecialFolder.CommonProgramFiles:
436 case SpecialFolder.ProgramFiles:
437 case SpecialFolder.System:
439 // This is where data common to all users goes
440 case SpecialFolder.CommonApplicationData:
443 throw new ArgumentException ("Invalid SpecialFolder");
447 public static string[] GetLogicalDrives ()
449 return GetLogicalDrivesInternal ();
452 static internal string GetResourceString (string s) { return ""; }
456 public static string GetEnvironmentVariable (string variable, EnvironmentVariableTarget target)
458 return (string)(GetEnvironmentVariables (target) [variable]);
462 public static IDictionary GetEnvironmentVariables (EnvironmentVariableTarget target)
464 throw new NotImplementedException ();
467 public static void SetEnvironmentVariable (string variable, string value)
469 SetEnvironmentVariable (variable, value, EnvironmentVariableTarget.Process);
473 public static void SetEnvironmentVariable (string variable, string value, EnvironmentVariableTarget target)
475 throw new NotImplementedException ();
479 static bool IsServerGC {
481 throw new NotImplementedException ();
486 static int ProcessorCount {
488 throw new NotImplementedException ();
495 private static string GacPath {
497 if ((int) Platform != 128) {
498 /* On windows, we don't know the path where mscorlib.dll will be installed */
499 string corlibDir = new DirectoryInfo (Path.GetDirectoryName (typeof (int).Assembly.Location)).Parent.Parent.FullName;
500 return Path.Combine (Path.Combine (corlibDir, "mono"), "gac");
503 return Path.Combine (Path.Combine (internalGetGacPath (), "mono"), "gac");
507 [MethodImplAttribute (MethodImplOptions.InternalCall)]
508 private extern static string [] GetLogicalDrivesInternal ();
510 [MethodImplAttribute (MethodImplOptions.InternalCall)]
511 private extern static string [] GetEnvironmentVariableNames ();
513 [MethodImplAttribute (MethodImplOptions.InternalCall)]
514 internal extern static string GetMachineConfigPath ();
516 [MethodImplAttribute (MethodImplOptions.InternalCall)]
517 internal extern static string internalGetGacPath ();
519 [MethodImplAttribute (MethodImplOptions.InternalCall)]
520 internal extern static string internalGetHome ();