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Imported Upstream version 4.6.0.150

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Former-commit-id: 73e3bb1e96dd09dc931c1dfe559d2c7f7b8b02c7
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2016-08-23 13:20:38 +00:00
parent 02ac915603
commit b95516a3dd
239 changed files with 4096 additions and 1544 deletions
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37
mcs/class/System.Core/System.IO.MemoryMappedFiles/MemoryMappedFile.cs
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@ -182,6 +182,31 @@ namespace System.IO.MemoryMappedFiles
};
}
public static MemoryMappedFile CreateFromFile (FileStream fileStream, string mapName, long capacity, MemoryMappedFileAccess access,
HandleInheritability inheritability,
bool leaveOpen)
{
if (fileStream == null)
throw new ArgumentNullException ("fileStream");
if (mapName != null && mapName.Length == 0)
throw new ArgumentException ("mapName");
if ((!MonoUtil.IsUnix && capacity == 0 && fileStream.Length == 0) || (capacity > fileStream.Length))
throw new ArgumentException ("capacity");
IntPtr handle = MemoryMapImpl.OpenHandle (fileStream.Handle, mapName, out capacity, access, MemoryMappedFileOptions.DelayAllocatePages);
MemoryMapImpl.ConfigureHandleInheritability (handle, inheritability);
return new MemoryMappedFile () {
handle = handle,
fileAccess = access,
name = mapName,
fileCapacity = capacity,
stream = fileStream,
keepOpen = leaveOpen
};
}
[MonoLimitation ("memoryMappedFileSecurity is currently ignored")]
public static MemoryMappedFile CreateFromFile (FileStream fileStream, string mapName, long capacity, MemoryMappedFileAccess access,
@ -242,6 +267,12 @@ namespace System.IO.MemoryMappedFiles
return CreateNew (mapName, capacity, access, MemoryMappedFileOptions.DelayAllocatePages, null, HandleInheritability.None);
}
[MonoLimitation ("Named mappings scope is process local; options is ignored")]
public static MemoryMappedFile CreateNew (string mapName, long capacity, MemoryMappedFileAccess access, MemoryMappedFileOptions options, HandleInheritability inheritability)
{
return CreateNew (mapName, capacity, access, options, null, inheritability);
}
[MonoLimitation ("Named mappings scope is process local; options and memoryMappedFileSecurity are ignored")]
public static MemoryMappedFile CreateNew (string mapName, long capacity, MemoryMappedFileAccess access,
MemoryMappedFileOptions options, MemoryMappedFileSecurity memoryMappedFileSecurity,
@ -262,6 +293,12 @@ namespace System.IO.MemoryMappedFiles
return CreateOrOpen (mapName, capacity, access, MemoryMappedFileOptions.DelayAllocatePages, null, HandleInheritability.None);
}
[MonoLimitation ("Named mappings scope is process local")]
public static MemoryMappedFile CreateOrOpen (string mapName, long capacity, MemoryMappedFileAccess access, MemoryMappedFileOptions options, HandleInheritability inheritability)
{
return CreateOrOpen (mapName, capacity, access, options, null, inheritability);
}
[MonoLimitation ("Named mappings scope is process local")]
public static MemoryMappedFile CreateOrOpen (string mapName, long capacity, MemoryMappedFileAccess access, MemoryMappedFileOptions options, MemoryMappedFileSecurity memoryMappedFileSecurity, HandleInheritability inheritability)
{