160 lines
3.9 KiB
C#
160 lines
3.9 KiB
C#
//
|
|
// MonoBtlsObject.cs
|
|
//
|
|
// Author:
|
|
// Martin Baulig <martin.baulig@xamarin.com>
|
|
//
|
|
// Copyright (c) 2016 Xamarin Inc. (http://www.xamarin.com)
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
#if SECURITY_DEP && MONO_FEATURE_BTLS
|
|
using System;
|
|
using System.Threading;
|
|
using System.Runtime.InteropServices;
|
|
using System.Runtime.CompilerServices;
|
|
|
|
namespace Mono.Btls
|
|
{
|
|
abstract class MonoBtlsObject : IDisposable
|
|
{
|
|
internal const string BTLS_DYLIB = "libmono-btls-shared";
|
|
|
|
internal MonoBtlsObject (MonoBtlsHandle handle)
|
|
{
|
|
this.handle = handle;
|
|
}
|
|
|
|
protected internal abstract class MonoBtlsHandle : SafeHandle
|
|
{
|
|
internal MonoBtlsHandle ()
|
|
: base (IntPtr.Zero, true)
|
|
{
|
|
}
|
|
|
|
internal MonoBtlsHandle (IntPtr handle, bool ownsHandle)
|
|
: base (handle, ownsHandle)
|
|
{
|
|
}
|
|
|
|
public override bool IsInvalid {
|
|
get { return handle == IntPtr.Zero; }
|
|
}
|
|
}
|
|
|
|
internal MonoBtlsHandle Handle {
|
|
get {
|
|
CheckThrow ();
|
|
return handle;
|
|
}
|
|
}
|
|
|
|
public bool IsValid {
|
|
get { return handle != null && !handle.IsInvalid; }
|
|
}
|
|
|
|
MonoBtlsHandle handle;
|
|
Exception lastError;
|
|
|
|
protected void CheckThrow ()
|
|
{
|
|
if (lastError != null)
|
|
throw lastError;
|
|
if (handle == null || handle.IsInvalid)
|
|
throw new ObjectDisposedException ("MonoBtlsSsl");
|
|
}
|
|
|
|
protected Exception SetException (Exception ex)
|
|
{
|
|
if (lastError == null)
|
|
lastError = ex;
|
|
return ex;
|
|
}
|
|
|
|
protected void CheckError (bool ok, [CallerMemberName] string callerName = null)
|
|
{
|
|
if (!ok) {
|
|
if (callerName != null)
|
|
throw new MonoBtlsException ("{0}.{1} failed.", GetType ().Name, callerName);
|
|
else
|
|
throw new MonoBtlsException ();
|
|
}
|
|
|
|
}
|
|
|
|
protected void CheckError (int ret, [CallerMemberName] string callerName = null)
|
|
{
|
|
CheckError (ret == 1, callerName);
|
|
}
|
|
|
|
protected internal void CheckLastError ([CallerMemberName] string callerName = null)
|
|
{
|
|
var error = Interlocked.Exchange (ref lastError, null);
|
|
if (error == null)
|
|
return;
|
|
|
|
string message;
|
|
if (callerName != null)
|
|
message = string.Format ("Caught unhandled exception in {0}.{1}.", GetType ().Name, callerName);
|
|
else
|
|
message = string.Format ("Caught unhandled exception.");
|
|
throw new MonoBtlsException (message, error);
|
|
}
|
|
|
|
[DllImport (BTLS_DYLIB)]
|
|
extern static void mono_btls_free (IntPtr data);
|
|
|
|
protected void FreeDataPtr (IntPtr data)
|
|
{
|
|
mono_btls_free (data);
|
|
}
|
|
|
|
protected virtual void Close ()
|
|
{
|
|
}
|
|
|
|
protected void Dispose (bool disposing)
|
|
{
|
|
if (disposing) {
|
|
try {
|
|
if (handle != null) {
|
|
Close ();
|
|
handle.Dispose ();
|
|
handle = null;
|
|
}
|
|
} finally {
|
|
var disposedExc = new ObjectDisposedException (GetType ().Name);
|
|
Interlocked.CompareExchange (ref lastError, disposedExc, null);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void Dispose ()
|
|
{
|
|
Dispose (true);
|
|
GC.SuppressFinalize (this);
|
|
}
|
|
|
|
~MonoBtlsObject ()
|
|
{
|
|
Dispose (false);
|
|
}
|
|
}
|
|
}
|
|
#endif
|