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Imported Upstream version 4.8.0.309

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Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850
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Xamarin Public Jenkins (auto-signing)
2016-11-10 13:04:39 +00:00
parent ee1447783b
commit 94b2861243
4912 changed files with 390737 additions and 49310 deletions
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46
mcs/class/corlib/Mono/SafeStringMarshal.cs Normal file
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//
// Safe wrapper for a string and its UTF8 encoding
//
// Authors:
// Aleksey Kliger <aleksey@xamarin.com>
// Rodrigo Kumpera <kumpera@xamarin.com>
//
// Copyright 2016 Dot net foundation.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
using System;
using System.Runtime.CompilerServices;
namespace Mono {
internal struct SafeStringMarshal : IDisposable {
readonly string str;
IntPtr marshaled_string;
[MethodImplAttribute(MethodImplOptions.InternalCall)]
public extern static IntPtr StringToUtf8 (string str);
[MethodImplAttribute(MethodImplOptions.InternalCall)]
public extern static void GFree (IntPtr ptr);
public SafeStringMarshal (string str) {
this.str = str;
this.marshaled_string = IntPtr.Zero;
}
public IntPtr Value {
get {
if (marshaled_string == IntPtr.Zero && str != null)
marshaled_string = StringToUtf8 (str);
return marshaled_string;
}
}
public void Dispose () {
if (marshaled_string != IntPtr.Zero) {
GFree (marshaled_string);
marshaled_string = IntPtr.Zero;
}
}
}
}