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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*============================================================
**
** Header: FusionSink.cpp
**
** Purpose: Implements FusionSink, event objects that block
** the current thread waiting for an asynchronous load
** of an assembly to succeed.
**
**
===========================================================*/
#include "common.h"
#include <stdlib.h>
#include "fusionsink.h"
#include "ex.h"
STDMETHODIMP FusionSink::QueryInterface(REFIID riid, void** ppv)
{
CONTRACTL
{
MODE_ANY;
GC_NOTRIGGER;
NOTHROW;
ENTRY_POINT;
}
CONTRACTL_END;
HRESULT hr = S_OK;
BEGIN_ENTRYPOINT_NOTHROW;
*ppv = NULL;
if (riid == IID_IUnknown)
*ppv = (IUnknown*) (IAssemblyBindSink*) this;
else if (riid == IID_IAssemblyBindSink)
*ppv = (IAssemblyBindSink*)this;
else if (riid == IID_INativeImageEvaluate)
*ppv = (INativeImageEvaluate*)this;
if (*ppv == NULL)
hr = E_NOINTERFACE;
else
AddRef();
END_ENTRYPOINT_NOTHROW;
return hr;
}
STDMETHODIMP FusionSink::OnProgress(DWORD dwNotification,
HRESULT hrNotification,
LPCWSTR szNotification,
DWORD dwProgress,
DWORD dwProgressMax,
LPVOID pvBindInfo,
IUnknown* punk)
{
LIMITED_METHOD_CONTRACT;
HRESULT hr = S_OK;
switch(dwNotification) {
case ASM_NOTIFICATION_DONE:
m_LastResult = hrNotification;
if(m_pAbortUnk) {
m_pAbortUnk->Release();
m_pAbortUnk = NULL;
}
if(punk && SUCCEEDED(hrNotification))
hr = punk->QueryInterface(IID_IUnknown, (void**) &m_punk);
m_hEvent->Set();
break;
case ASM_NOTIFICATION_NATIVE_IMAGE_DONE:
if(punk && SUCCEEDED(hrNotification))
hr = punk->QueryInterface(IID_IUnknown, (void**) &m_pNIunk);
break;
case ASM_NOTIFICATION_START:
if(punk)
hr = punk->QueryInterface(IID_IUnknown, (void**) &m_pAbortUnk);
break;
case ASM_NOTIFICATION_ATTEMPT_NEXT_CODEBASE:
break;
case ASM_NOTIFICATION_BIND_INFO:
FusionBindInfo *pBindInfo;
pBindInfo = (FusionBindInfo *)pvBindInfo;
if (pBindInfo && m_pFusionLog == NULL) {
m_pFusionLog = pBindInfo->pdbglog;
if (m_pFusionLog) {
m_pFusionLog->AddRef();
}
}
break;
default:
break;
}
return hr;
}
ULONG FusionSink::AddRef()
{
LIMITED_METHOD_CONTRACT;
ULONG cRefCount = 0;
//BEGIN_ENTRYPOINT_VOIDRET;
cRefCount = (InterlockedIncrement(&m_cRef));
//END_ENTRYPOINT_VOIDRET;
return cRefCount;
}
ULONG FusionSink::Release()
{
WRAPPER_NO_CONTRACT;
STATIC_CONTRACT_ENTRY_POINT;
BEGIN_CLEANUP_ENTRYPOINT;
ULONG cRef = InterlockedDecrement(&m_cRef);
if (!cRef) {
Reset();
delete this;
}
END_CLEANUP_ENTRYPOINT;
return (cRef);
}
HRESULT FusionSink::AssemblyResetEvent()
{
WRAPPER_NO_CONTRACT;
HRESULT hr = AssemblyCreateEvent();
if(FAILED(hr)) return hr;
if(!m_hEvent->Reset()) {
hr = HRESULT_FROM_GetLastErrorNA();
}
return hr;
}
HRESULT FusionSink::AssemblyCreateEvent()
{
STATIC_CONTRACT_NOTHROW;
HRESULT hr = S_OK;
if(m_hEvent == NULL) {
// Initialize the event to require manual reset
// and to initially signaled.
EX_TRY {
m_hEvent = new Event();
m_hEvent->CreateManualEvent(TRUE);
}
EX_CATCH
{
hr = GET_EXCEPTION()->GetHR();
}
EX_END_CATCH(SwallowAllExceptions);
}
return hr;
}
HRESULT FusionSink::Wait()
{
STATIC_CONTRACT_NOTHROW;
#if CHECK_INVARIANTS
_ASSERTE(CheckPointer(this));
_ASSERTE(CheckPointer(m_hEvent));
#endif // CHECK_INVARIANTS
HRESULT hr = S_OK;
DWORD dwReturn = 0;
// CLREvent::Wait will switch mode if needed;
// Waiting for a signal from fusion - which we are guaranteed to get.
// We do a WaitForMultipleObjects (STA and MTA) and pump messages in the STA case
// in the call so we shouldn't freeze the system.
EX_TRY
{
dwReturn = m_hEvent->Wait(INFINITE,TRUE);
}
EX_CATCH
{
// Fusion uses us via COM interface so we need to swallow exceptions
hr = GET_EXCEPTION()->GetHR();
//@todo: is it right thing to do to swallow exceptions here
}
EX_END_CATCH(SwallowAllExceptions);
return hr;
}
HRESULT FusionSink::Evaluate (
IAssembly *pILAssembly,
IAssembly *pNativeAssembly,
BYTE * pbCachedData,
DWORD dwDataSize
)
{
LIMITED_METHOD_CONTRACT;
STATIC_CONTRACT_ENTRY_POINT;
return S_OK;
}
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