/// <summary>Converts file rights to minimum expected file accesses.</summary>
private static MemoryMappedFileAccess RightsToAccess(MemoryMappedFileRights rights)
{
if ((rights & MemoryMappedFileRights.ReadWriteExecute) == MemoryMappedFileRights.ReadWriteExecute)
{
return(MemoryMappedFileAccess.ReadWriteExecute);
}
if ((rights & MemoryMappedFileRights.ReadWrite) == MemoryMappedFileRights.ReadWrite)
{
return(MemoryMappedFileAccess.ReadWrite);
}
if ((rights & MemoryMappedFileRights.Write) == MemoryMappedFileRights.Write)
{
return(MemoryMappedFileAccess.Write);
}
if ((rights & MemoryMappedFileRights.ReadExecute) == MemoryMappedFileRights.ReadExecute)
{
return(MemoryMappedFileAccess.ReadExecute);
}
if ((rights & MemoryMappedFileRights.Read) == MemoryMappedFileRights.Read)
{
return(MemoryMappedFileAccess.Read);
}
return((MemoryMappedFileAccess)(-1)); // no None, so just use -1
}
public void OpenCreatedNew(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
const int Capacity = 4096;
using (MemoryMappedFile original = MemoryMappedFile.CreateNew(mapName, Capacity))
{
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(mapName))
{
Assert.Throws <IOException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.AccessSystemSecurity));
Assert.Throws <IOException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.AccessSystemSecurity, HandleInheritability.None));
ValidateMemoryMappedFile(opened, Capacity);
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(mapName, desiredAccessRights | MemoryMappedFileRights.ReadPermissions)) // can't do anything if we don't have read permissions
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(desiredAccessRights));
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(mapName, desiredAccessRights | MemoryMappedFileRights.ReadPermissions, inheritability))
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(desiredAccessRights), inheritability);
}
}
// The map no longer exists
Assert.Throws <FileNotFoundException>(() => MemoryMappedFile.OpenExisting(mapName));
Assert.Throws <FileNotFoundException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.ReadWrite));
Assert.Throws <FileNotFoundException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.ReadWrite, HandleInheritability.None));
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights,
HandleInheritability inheritability)
{
if (mapName == null)
{
throw new ArgumentNullException("mapName", SR.ArgumentNull_MapName);
}
if (mapName.Length == 0)
{
throw new ArgumentException(SR.Argument_MapNameEmptyString);
}
if (inheritability < HandleInheritability.None || inheritability > HandleInheritability.Inheritable)
{
throw new ArgumentOutOfRangeException("inheritability");
}
if (((int)desiredAccessRights & ~((int)(MemoryMappedFileRights.FullControl | MemoryMappedFileRights.AccessSystemSecurity))) != 0)
{
throw new ArgumentOutOfRangeException("desiredAccessRights");
}
SafeMemoryMappedFileHandle handle = OpenCore(mapName, inheritability, desiredAccessRights, false);
return new MemoryMappedFile(handle);
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights,
HandleInheritability inheritability)
{
if (mapName == null)
{
throw new ArgumentNullException(nameof(mapName), SR.ArgumentNull_MapName);
}
if (mapName.Length == 0)
{
throw new ArgumentException(SR.Argument_MapNameEmptyString);
}
if (inheritability < HandleInheritability.None || inheritability > HandleInheritability.Inheritable)
{
throw new ArgumentOutOfRangeException(nameof(inheritability));
}
if (((int)desiredAccessRights & ~((int)(MemoryMappedFileRights.FullControl | MemoryMappedFileRights.AccessSystemSecurity))) != 0)
{
throw new ArgumentOutOfRangeException(nameof(desiredAccessRights));
}
SafeMemoryMappedFileHandle handle = OpenCore(mapName, inheritability, desiredAccessRights, false);
return(new MemoryMappedFile(handle));
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
Contract.Ensures(1 <= mapName.Length);
Contract.Ensures(Contract.Result <System.IO.MemoryMappedFiles.MemoryMappedFile>() != null);
return(default(MemoryMappedFile));
}
public void OpenCreatedNew(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
const int Capacity = 4096;
using (MemoryMappedFile original = MemoryMappedFile.CreateNew(mapName, Capacity))
{
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(mapName))
{
Assert.Throws<IOException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.AccessSystemSecurity));
Assert.Throws<IOException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.AccessSystemSecurity, HandleInheritability.None));
ValidateMemoryMappedFile(opened, Capacity);
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(mapName, desiredAccessRights | MemoryMappedFileRights.ReadPermissions)) // can't do anything if we don't have read permissions
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(desiredAccessRights));
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(mapName, desiredAccessRights | MemoryMappedFileRights.ReadPermissions, inheritability))
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(desiredAccessRights), inheritability);
}
}
// The map no longer exists
Assert.Throws<FileNotFoundException>(() => MemoryMappedFile.OpenExisting(mapName));
Assert.Throws<FileNotFoundException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.ReadWrite));
Assert.Throws<FileNotFoundException>(() => MemoryMappedFile.OpenExisting(mapName, MemoryMappedFileRights.ReadWrite, HandleInheritability.None));
}
public void OpenCreatedFromFile(string name, MemoryMappedFileRights rights, HandleInheritability inheritability)
{
const int Capacity = 4096;
using (TempFile file = new TempFile(GetTestFilePath()))
using (FileStream fs = File.Open(file.Path, FileMode.Open))
using (MemoryMappedFile original = MemoryMappedFile.CreateFromFile(fs, name, Capacity, MemoryMappedFileAccess.ReadWrite, HandleInheritability.None, false))
{
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(name))
{
Assert.Throws <IOException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.AccessSystemSecurity));
Assert.Throws <IOException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.AccessSystemSecurity, HandleInheritability.None));
ValidateMemoryMappedFile(opened, Capacity);
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(name, rights | MemoryMappedFileRights.ReadPermissions))
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(rights));
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(name, rights | MemoryMappedFileRights.ReadPermissions, inheritability))
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(rights), inheritability);
}
}
// The map no longer exists
Assert.Throws <FileNotFoundException>(() => MemoryMappedFile.OpenExisting(name));
Assert.Throws <FileNotFoundException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.Read));
Assert.Throws <FileNotFoundException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.Read, HandleInheritability.None));
}
public IMemoryMappedFile OpenExisting(
string mapName,
MemoryMappedFileRights desiredAccessRights,
HandleInheritability inheritability)
{
return new MemoryMappedFileWrapper(
MemoryMappedFile.OpenExisting(mapName, desiredAccessRights, inheritability));
}
public void OpenExistingstring(string mapName, MemoryMappedFileRights desiredAccessRights)
{
instance = MemoryMappedFile.OpenExisting(mapName, desiredAccessRights);
this.mapName = mapName;
this.desiredAccessRights = desiredAccessRights;
ci = CreateInstance.OpenExistingstring;
ni = 1;
}
public IMemoryMappedFile OpenExisting(
string mapName,
MemoryMappedFileRights desiredAccessRights,
HandleInheritability inheritability)
{
return(new MemoryMappedFileWrapper(
MemoryMappedFile.OpenExisting(mapName, desiredAccessRights, inheritability)));
}
public void OpenExistingstring(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
instance = MemoryMappedFile.OpenExisting(mapName, desiredAccessRights, inheritability);
this.mapName = mapName;
this.desiredAccessRights = desiredAccessRights;
this.inheritability = inheritability;
ci = CreateInstance.OpenExistingstring;
ni = 2;
}
/// <summary>
/// Opens an existing memory-mapped file. Throws FileNotFoundException if it doesn't exist.
/// </summary>
/// <param name="mapName"></param>
/// <returns></returns>
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights access)
{
SafeMemoryMappedFileHandle safeMemoryMappedFileHandle = UnsafeNativeMethods.OpenFileMapping((uint)access, false, mapName);
int lastWin32Error = Marshal.GetLastWin32Error();
if (safeMemoryMappedFileHandle.IsInvalid)
{
if (lastWin32Error == UnsafeNativeMethods.ERROR_FILE_NOT_FOUND)
{
throw new FileNotFoundException();
}
throw new System.IO.IOException(UnsafeNativeMethods.GetMessage(lastWin32Error));
}
return(new MemoryMappedFile(safeMemoryMappedFileHandle));
}
public static MemoryMappedFile OpenExisting(string mappedName, MemoryMappedFileRights desiredAccessRights = MemoryMappedFileRights.ReadWrite)
{
MemoryMappedFile mappedFile = new MemoryMappedFile();
//mappedFile.map = Win32APIs.OpenFileMapping(desiredAccessRights, false, @"Global\" + mappedName);
mappedFile.rights = desiredAccessRights;
mappedFile.basemap = Win32APIs.OpenFileMapping(mappedFile.rights, false, mappedName);
if (mappedFile.basemap == IntPtr.Zero) //생성 실패
{
return(null);
}
return(mappedFile);
}
public void VerifyOpenExisting(String strLoc, String mapName, MemoryMappedFileRights rights, HandleInheritability inheritability, MemoryMappedFileAccess expectedAccess)
{
iCountTestcases++;
try
{
using (MemoryMappedFile mmf = MemoryMappedFile.OpenExisting(mapName, rights, inheritability))
{
VerifyHandleInheritability(strLoc, mmf.SafeMemoryMappedFileHandle, inheritability);
VerifyAccess(strLoc, mmf, expectedAccess, 10);
}
}
catch (Exception ex)
{
iCountErrors++;
Console.WriteLine("ERROR, {0}: Unexpected exception, {1}", strLoc, ex);
}
}
public static MemoryMappedFileSecurity MapSecurity(bool create)
{
SecurityIdentifier user = GetEveryoneSID();
MemoryMappedFileSecurity result = new MemoryMappedFileSecurity();
MemoryMappedFileRights rights = MemoryMappedFileRights.ReadWrite;
if (create)
{
rights |= MemoryMappedFileRights.Delete;
}
AccessRule <MemoryMappedFileRights> rule = new AccessRule <MemoryMappedFileRights>(user, rights, AccessControlType.Allow);
result.AddAccessRule(rule);
return(result);
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
if (mapName == null)
{
throw new ArgumentNullException("mapName", System.SR.GetString("ArgumentNull_MapName"));
}
if (mapName.Length == 0)
{
throw new ArgumentException(System.SR.GetString("Argument_MapNameEmptyString"));
}
if ((inheritability < HandleInheritability.None) || (inheritability > HandleInheritability.Inheritable))
{
throw new ArgumentOutOfRangeException("inheritability");
}
if ((desiredAccessRights & ~(MemoryMappedFileRights.AccessSystemSecurity | MemoryMappedFileRights.FullControl)) != 0)
{
throw new ArgumentOutOfRangeException("desiredAccessRights");
}
return(new MemoryMappedFile(OpenCore(mapName, inheritability, (int)desiredAccessRights, false)));
}
public void VerifyOpenExistingException <EXCTYPE>(String strLoc, String mapName, MemoryMappedFileRights rights, HandleInheritability inheritability) where EXCTYPE : Exception
{
iCountTestcases++;
try
{
using (MemoryMappedFile mmf = MemoryMappedFile.OpenExisting(mapName, rights, inheritability))
{
iCountErrors++;
Console.WriteLine("ERROR, {0}: No exception thrown, expected {1}", strLoc, typeof(EXCTYPE));
}
}
catch (EXCTYPE)
{
//Console.WriteLine("{0}: Expected, {1}: {2}", strLoc, ex.GetType(), ex.Message);
}
catch (Exception ex)
{
iCountErrors++;
Console.WriteLine("ERROR, {0}: Unexpected exception, {1}", strLoc, ex);
}
}
MemoryMappedFileAccess RightsToMinAccess(MemoryMappedFileRights rights)
{
// MemoryMappedFileRights.FullControl, MemoryMappedFileRights.ReadWriteExecute
if ((rights & MemoryMappedFileRights.ReadWriteExecute) == MemoryMappedFileRights.ReadWriteExecute)
{
return(MemoryMappedFileAccess.ReadWriteExecute);
}
// MemoryMappedFileRights.ReadWrite,
else if ((rights & MemoryMappedFileRights.ReadWrite) == MemoryMappedFileRights.ReadWrite)
{
return(MemoryMappedFileAccess.ReadWrite);
}
// MemoryMappedFileRights.Write,
else if ((rights & MemoryMappedFileRights.Write) == MemoryMappedFileRights.Write)
{
return(MemoryMappedFileAccess.Write);
}
// MemoryMappedFileRights.ReadExecute,
else if ((rights & MemoryMappedFileRights.ReadExecute) == MemoryMappedFileRights.ReadExecute)
{
return(MemoryMappedFileAccess.ReadExecute);
}
// MemoryMappedFileRights.Read,
else if ((rights & MemoryMappedFileRights.Read) == MemoryMappedFileRights.Read)
{
return(MemoryMappedFileAccess.Read);
}
// MemoryMappedFileRights.CopyOnWrite,
// access=CopyOnWrite implies read access, but rights=CopyOnWrite doesn't, so map it equal to no access here
//else if ((rights & MemoryMappedFileRights.CopyOnWrite) == MemoryMappedFileRights.CopyOnWrite)
// return MemoryMappedFileAccess.CopyOnWrite;
// MemoryMappedFileRights.Execute, MemoryMappedFileRights.Delete, MemoryMappedFileRights.ReadPermissions, MemoryMappedFileRights.ChangePermissions, MemoryMappedFileRights.TakeOwnership, MemoryMappedFileRights.AccessSystemSecurity
else
{
return((MemoryMappedFileAccess)(-1)); // since there's no "None" value
}
}
public void OpenCreatedFromFile(string name, MemoryMappedFileRights rights, HandleInheritability inheritability)
{
const int Capacity = 4096;
using (TempFile file = new TempFile(GetTestFilePath()))
using (FileStream fs = File.Open(file.Path, FileMode.Open))
using (MemoryMappedFile original = MemoryMappedFile.CreateFromFile(fs, name, Capacity, MemoryMappedFileAccess.ReadWrite, HandleInheritability.None, false))
{
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(name))
{
Assert.Throws<IOException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.AccessSystemSecurity));
Assert.Throws<IOException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.AccessSystemSecurity, HandleInheritability.None));
ValidateMemoryMappedFile(opened, Capacity);
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(name, rights | MemoryMappedFileRights.ReadPermissions))
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(rights));
}
using (MemoryMappedFile opened = MemoryMappedFile.OpenExisting(name, rights | MemoryMappedFileRights.ReadPermissions, inheritability))
{
ValidateMemoryMappedFile(opened, Capacity, RightsToAccess(rights), inheritability);
}
}
// The map no longer exists
Assert.Throws<FileNotFoundException>(() => MemoryMappedFile.OpenExisting(name));
Assert.Throws<FileNotFoundException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.Read));
Assert.Throws<FileNotFoundException>(() => MemoryMappedFile.OpenExisting(name, MemoryMappedFileRights.Read, HandleInheritability.None));
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability);
/// <summary>Converts file rights to minimum expected file accesses.</summary>
private static MemoryMappedFileAccess RightsToAccess(MemoryMappedFileRights rights)
{
if ((rights & MemoryMappedFileRights.ReadWriteExecute) == MemoryMappedFileRights.ReadWriteExecute)
return MemoryMappedFileAccess.ReadWriteExecute;
if ((rights & MemoryMappedFileRights.ReadWrite) == MemoryMappedFileRights.ReadWrite)
return MemoryMappedFileAccess.ReadWrite;
if ((rights & MemoryMappedFileRights.Write) == MemoryMappedFileRights.Write)
return MemoryMappedFileAccess.Write;
if ((rights & MemoryMappedFileRights.ReadExecute) == MemoryMappedFileRights.ReadExecute)
return MemoryMappedFileAccess.ReadExecute;
if ((rights & MemoryMappedFileRights.Read) == MemoryMappedFileRights.Read)
return MemoryMappedFileAccess.Read;
return (MemoryMappedFileAccess)(-1); // no None, so just use -1
}
/// <summary>
/// Used by the OpenExisting factory method group and by CreateOrOpen if access is write.
/// We'll throw an ArgumentException if the file mapping object didn't exist and the
/// caller used CreateOrOpen since Create isn't valid with Write access
/// </summary>
private static SafeMemoryMappedFileHandle OpenCore(
string mapName, HandleInheritability inheritability, MemoryMappedFileRights rights, bool createOrOpen)
{
return OpenCore(mapName, inheritability, GetFileMapAccess(rights), createOrOpen);
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
throw new NotImplementedException();
}
/// <summary>
/// Used by the OpenExisting factory method group and by CreateOrOpen if access is write.
/// We'll throw an ArgumentException if the file mapping object didn't exist and the
/// caller used CreateOrOpen since Create isn't valid with Write access
/// </summary>
private static SafeMemoryMappedFileHandle OpenCore(
string mapName, HandleInheritability inheritability, MemoryMappedFileRights rights, bool createOrOpen)
{
return(OpenCore(mapName, inheritability, GetFileMapAccess(rights), createOrOpen));
}
public static MemoryMappedFile OpenExisting (string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
throw new NotImplementedException ();
}
private static SafeMemoryMappedFileHandle OpenCore(
String mapName, HandleInheritability inheritability, MemoryMappedFileRights rights, bool createOrOpen)
{
throw NotImplemented.ByDesign; // TODO: Implement this
}
private static SafeMemoryMappedFileHandle OpenCore(
string mapName, HandleInheritability inheritability, MemoryMappedFileRights rights, bool createOrOpen)
{
throw CreateNamedMapsNotSupportedException();
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability);
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights);
public bool runTest()
{
try
{
////////////////////////////////////////////////////////////////////////
// OpenExisting(mapName)
////////////////////////////////////////////////////////////////////////
// [] mapName
// mapname > 260 chars
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("OpenExisting_" + new String('a', 1000) + s_uniquifier, 4096))
{
VerifyOpenExisting("Loc111", "OpenExisting_" + new String('a', 1000) + s_uniquifier, MemoryMappedFileAccess.ReadWrite);
}
// null
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew(null, 4096))
{
VerifyOpenExistingException <ArgumentNullException>("Loc112", null);
}
// empty string disallowed
VerifyOpenExistingException <ArgumentException>("Loc113", String.Empty);
// all whitespace
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("\t \n\u00A0 \t", 4096))
{
VerifyOpenExisting("Loc114", "\t \n\u00A0 \t", MemoryMappedFileAccess.ReadWrite);
}
// MMF with this mapname already exists (pagefile backed)
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("OpenExisting_map115a" + s_uniquifier, 1000))
{
VerifyOpenExisting("Loc115a", "OpenExisting_map115a" + s_uniquifier, MemoryMappedFileAccess.ReadWrite);
}
// MMF with this mapname already exists (filesystem backed)
String fileText = "Non-empty file for MMF testing.";
File.WriteAllText(s_fileNameTest, fileText);
using (MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(s_fileNameTest, FileMode.Open, "map115b" + s_uniquifier))
{
VerifyOpenExisting("Loc115b", "map115b" + s_uniquifier, MemoryMappedFileAccess.ReadWrite);
}
// MMF with this mapname existed, but was closed - new MMF
VerifyOpenExistingException <FileNotFoundException>("Loc116", "OpenExisting_map115a" + s_uniquifier);
////////////////////////////////////////////////////////////////////////
// OpenExisting(mapName, MemoryMappedFileRights)
////////////////////////////////////////////////////////////////////////
// [] rights
MemoryMappedFileRights[] rightsList;
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname334" + s_uniquifier, 1000))
{
// default security - AccessSystemSecurity fails
VerifyOpenExistingException <IOException>("Loc333", "mapname334" + s_uniquifier, MemoryMappedFileRights.AccessSystemSecurity);
// default security - all others valid
rightsList = new MemoryMappedFileRights[] {
MemoryMappedFileRights.CopyOnWrite,
MemoryMappedFileRights.Read,
MemoryMappedFileRights.Write,
MemoryMappedFileRights.Execute,
MemoryMappedFileRights.ReadWrite,
MemoryMappedFileRights.ReadExecute,
MemoryMappedFileRights.ReadWriteExecute,
MemoryMappedFileRights.Delete,
MemoryMappedFileRights.ReadPermissions,
MemoryMappedFileRights.ChangePermissions,
MemoryMappedFileRights.TakeOwnership,
MemoryMappedFileRights.FullControl,
};
foreach (MemoryMappedFileRights rights in rightsList)
{
//Console.WriteLine("{0} {1}", rights, RightsToMinAccess(rights));
// include ReadPermissions or we won't be able to verify the security object
VerifyOpenExisting("Loc334_" + rights, "mapname334" + s_uniquifier, rights | MemoryMappedFileRights.ReadPermissions, RightsToMinAccess(rights));
}
// invalid enum value
rightsList = new MemoryMappedFileRights[] {
(MemoryMappedFileRights)(-1),
(MemoryMappedFileRights)(0x10000000),
};
foreach (MemoryMappedFileRights rights in rightsList)
{
VerifyOpenExistingException <ArgumentOutOfRangeException>("Loc335_" + ((int)rights), "mapname334" + s_uniquifier, rights);
}
}
////////////////////////////////////////////////////////////////////////
// OpenExisting(String, MemoryMappedFileRights, HandleInheritability)
////////////////////////////////////////////////////////////////////////
// [] mapName
// mapname > 260 chars
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew(new String('a', 1000) + s_uniquifier, 4096))
{
VerifyOpenExisting("Loc411", new String('a', 1000) + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
// null
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew(null, 4096))
{
VerifyOpenExistingException <ArgumentNullException>("Loc412", null, MemoryMappedFileRights.FullControl, HandleInheritability.None);
}
// empty string disallowed
VerifyOpenExistingException <ArgumentException>("Loc413", String.Empty, MemoryMappedFileRights.FullControl, HandleInheritability.None);
// all whitespace
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("\t \n\u00A0\t\t ", 4096))
{
VerifyOpenExisting("Loc414", "\t \n\u00A0\t\t ", MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
// MMF with this mapname already exists (pagefile backed)
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("map415a" + s_uniquifier, 1000))
{
VerifyOpenExisting("Loc415a", "map415a" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
// MMF with this mapname already exists (filesystem backed)
File.WriteAllText(s_fileNameTest, fileText);
using (MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(s_fileNameTest, FileMode.Open, "map415b" + s_uniquifier))
{
VerifyOpenExisting("Loc415b", "map415b" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
// MMF with this mapname existed, but was closed
VerifyOpenExistingException <FileNotFoundException>("Loc416", "map415a" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None);
// [] rights
// invalid enum value
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname432" + s_uniquifier, 1000))
{
rightsList = new MemoryMappedFileRights[] {
(MemoryMappedFileRights)(-1),
(MemoryMappedFileRights)(0x10000000),
};
foreach (MemoryMappedFileRights rights in rightsList)
{
VerifyOpenExistingException <ArgumentOutOfRangeException>("Loc432_" + ((int)rights), "mapname432" + s_uniquifier, rights, HandleInheritability.None);
}
}
// default security - all valid
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname433" + s_uniquifier, 1000))
{
rightsList = new MemoryMappedFileRights[] {
MemoryMappedFileRights.CopyOnWrite,
MemoryMappedFileRights.Read,
MemoryMappedFileRights.Write,
MemoryMappedFileRights.Execute,
MemoryMappedFileRights.ReadWrite,
MemoryMappedFileRights.ReadExecute,
MemoryMappedFileRights.ReadWriteExecute,
MemoryMappedFileRights.Delete,
MemoryMappedFileRights.ReadPermissions,
MemoryMappedFileRights.ChangePermissions,
MemoryMappedFileRights.TakeOwnership,
MemoryMappedFileRights.FullControl,
};
foreach (MemoryMappedFileRights rights in rightsList)
{
// include ReadPermissions or we won't be able to verify the security object
VerifyOpenExisting("Loc433_" + rights, "mapname433" + s_uniquifier, rights | MemoryMappedFileRights.ReadPermissions, HandleInheritability.None, RightsToMinAccess(rights));
}
// default security - AccessSystemSecurity fails
VerifyOpenExistingException <IOException>("Loc433b", "mapname433" + s_uniquifier, MemoryMappedFileRights.AccessSystemSecurity);
}
// default security, original (lesser) viewAccess is respected
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname434" + s_uniquifier, 1000, MemoryMappedFileAccess.Read))
{
rightsList = new MemoryMappedFileRights[] {
MemoryMappedFileRights.CopyOnWrite,
MemoryMappedFileRights.Read,
MemoryMappedFileRights.Write,
MemoryMappedFileRights.Execute,
MemoryMappedFileRights.ReadWrite,
MemoryMappedFileRights.ReadExecute,
MemoryMappedFileRights.ReadWriteExecute,
MemoryMappedFileRights.Delete,
MemoryMappedFileRights.ReadPermissions,
MemoryMappedFileRights.ChangePermissions,
MemoryMappedFileRights.TakeOwnership,
MemoryMappedFileRights.FullControl,
};
foreach (MemoryMappedFileRights rights in rightsList)
{
// include ReadPermissions or we won't be able to verify the security object
VerifyOpenExisting("Loc434_" + rights, "mapname434" + s_uniquifier, rights | MemoryMappedFileRights.ReadPermissions, HandleInheritability.None, RightsToMinAccess(rights & ~MemoryMappedFileRights.Write));
}
}
// [] inheritability
// None - existing file w/None
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname463" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.None, HandleInheritability.None))
{
VerifyOpenExisting("Loc463a", "mapname463" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
using (FileStream fs = new FileStream(s_fileNameTest, FileMode.Open))
{
using (MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(fs, "mapname463" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, HandleInheritability.None, false))
{
VerifyOpenExisting("Loc463b", "mapname463" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
}
// None - existing file w/Inheritable
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname464" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.None, HandleInheritability.Inheritable))
{
VerifyOpenExisting("Loc464a", "mapname464" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
using (FileStream fs = new FileStream(s_fileNameTest, FileMode.Open))
{
using (MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(fs, "mapname464" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, HandleInheritability.Inheritable, false))
{
VerifyOpenExisting("Loc464b", "mapname464" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.None, MemoryMappedFileAccess.ReadWriteExecute);
}
}
// Inheritable - existing file w/None
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname465" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.None, HandleInheritability.None))
{
VerifyOpenExisting("Loc465a", "mapname465" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.Inheritable, MemoryMappedFileAccess.ReadWriteExecute);
}
using (FileStream fs = new FileStream(s_fileNameTest, FileMode.Open))
{
using (MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(fs, "mapname465" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, HandleInheritability.None, false))
{
VerifyOpenExisting("Loc465b", "mapname465" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.Inheritable, MemoryMappedFileAccess.ReadWriteExecute);
}
}
// Inheritable - existing file w/Inheritable
using (MemoryMappedFile mmf = MemoryMappedFile.CreateNew("mapname466" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.None, HandleInheritability.Inheritable))
{
VerifyOpenExisting("Loc466a", "mapname466" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.Inheritable, MemoryMappedFileAccess.ReadWriteExecute);
}
using (FileStream fs = new FileStream(s_fileNameTest, FileMode.Open))
{
using (MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(fs, "mapname466" + s_uniquifier, 1000, MemoryMappedFileAccess.ReadWrite, HandleInheritability.Inheritable, false))
{
VerifyOpenExisting("Loc466b", "mapname466" + s_uniquifier, MemoryMappedFileRights.FullControl, HandleInheritability.Inheritable, MemoryMappedFileAccess.ReadWriteExecute);
}
}
// invalid
VerifyOpenExistingException <ArgumentOutOfRangeException>("Loc467", "mapname467" + s_uniquifier, MemoryMappedFileRights.FullControl, (HandleInheritability)(-1));
VerifyOpenExistingException <ArgumentOutOfRangeException>("Loc468", "mapname468" + s_uniquifier, MemoryMappedFileRights.FullControl, (HandleInheritability)(2));
/// END TEST CASES
if (iCountErrors == 0)
{
return(true);
}
else
{
Console.WriteLine("Fail! iCountErrors==" + iCountErrors);
return(false);
}
}
catch (Exception ex)
{
Console.WriteLine("ERR999: Unexpected exception in runTest, {0}", ex);
return(false);
}
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights)
{
return(OpenExisting(mapName, desiredAccessRights, HandleInheritability.None));
}
public IMemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights)
{
return(new MemoryMappedFileWrapper(MemoryMappedFile.OpenExisting(mapName, desiredAccessRights)));
}
public static MemoryMappedFile OpenExisting (string mapName, MemoryMappedFileRights desiredAccessRights)
{
throw new NotImplementedException ();
}
public static extern IntPtr MapViewOfFile(IntPtr hFileMappingObject,
MemoryMappedFileRights dwDesiredAccess,
long dwFileOffsetHigh,
long dwFileOffsetLow,
int dwNumberOfBytesToMap);
// -----------------------------
// ---- PAL layer ends here ----
// -----------------------------
/// <summary>
/// This converts a MemoryMappedFileRights to its corresponding native FILE_MAP_XXX value to be used when
/// creating new views.
/// </summary>
private static int GetFileMapAccess(MemoryMappedFileRights rights)
{
return((int)rights);
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
Contract.Ensures(1 <= mapName.Length);
Contract.Ensures(Contract.Result<System.IO.MemoryMappedFiles.MemoryMappedFile>() != null);
return default(MemoryMappedFile);
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights)
{
throw new NotImplementedException();
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights)
{
return OpenExisting(mapName, desiredAccessRights, HandleInheritability.None);
}
// -----------------------------
// ---- PAL layer ends here ----
// -----------------------------
/// <summary>
/// This converts a MemoryMappedFileRights to its corresponding native FILE_MAP_XXX value to be used when
/// creating new views.
/// </summary>
private static int GetFileMapAccess(MemoryMappedFileRights rights)
{
return (int)rights;
}
public static extern IntPtr OpenFileMapping(MemoryMappedFileRights dwDesiredAccess,
bool bInheritHandle,
string lpName);
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights, HandleInheritability inheritability)
{
// FIXME: Actually use desiredAccessRights
return(CoreShmCreate(mapName, 0, MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.None, null, inheritability, FileMode.Open));
}
public static MemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights);
private static SafeMemoryMappedFileHandle OpenCore(
string mapName, HandleInheritability inheritability, MemoryMappedFileRights rights, bool createOrOpen)
{
throw CreateNamedMapsNotSupportedException();
}
public IMemoryMappedFile OpenExisting(string mapName, MemoryMappedFileRights desiredAccessRights)
{
return new MemoryMappedFileWrapper(MemoryMappedFile.OpenExisting(mapName, desiredAccessRights));
}
