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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.
/*============================================================
**
** File: message.h
**
** Purpose: Encapsulates a function call frame into a message
** object with an interface that can enumerate the
** arguments of the messagef
**
**
===========================================================*/
#ifndef ___MESSAGE_H___
#define ___MESSAGE_H___
#ifndef FEATURE_REMOTING
#error FEATURE_REMOTING is not set, please do not include message.h
#endif
#include "fcall.h"
//+----------------------------------------------------------
//
// Struct: MessageObject
//
// Synopsis: Physical mapping of the System.Runtime.Remoting.Message
// object.
//
//
//------------------------------------------------------------
class MessageObject : public Object
{
friend class MscorlibBinder;
public:
MetaSig* GetResetMetaSig()
{
CONTRACT(MetaSig*)
{
NOTHROW;
GC_NOTRIGGER;
MODE_COOPERATIVE;
PRECONDITION(CheckPointer(pMetaSigHolder));
POSTCONDITION(CheckPointer(RETVAL));
SO_TOLERANT;
}
CONTRACT_END;
pMetaSigHolder->Reset();
RETURN pMetaSigHolder;
}
FramedMethodFrame *GetFrame()
{
CONTRACT(FramedMethodFrame *)
{
NOTHROW;
GC_NOTRIGGER;
MODE_COOPERATIVE;
POSTCONDITION(CheckPointer(RETVAL));
}
CONTRACT_END;
RETURN pFrame;
}
MethodDesc *GetMethodDesc()
{
CONTRACT(MethodDesc *)
{
NOTHROW;
GC_NOTRIGGER;
MODE_COOPERATIVE;
POSTCONDITION(CheckPointer(RETVAL));
SO_TOLERANT;
}
CONTRACT_END;
RETURN pMethodDesc;
}
MethodDesc *GetDelegateMD()
{
CONTRACT(MethodDesc *)
{
NOTHROW;
GC_NOTRIGGER;
MODE_COOPERATIVE;
POSTCONDITION(CheckPointer(RETVAL, NULL_OK));
SO_TOLERANT;
}
CONTRACT_END;
RETURN pDelegateMD;
}
INT32 GetFlags()
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_COOPERATIVE;
SO_TOLERANT;
}
CONTRACTL_END;
return iFlags;
}
private:
STRINGREF pMethodName; // Method name
BASEARRAYREF pMethodSig; // Array of parameter types
OBJECTREF pMethodBase; // Reflection method object
OBJECTREF pHashTable; // hashtable for properties
STRINGREF pURI; // object's URI
STRINGREF pTypeName; // not used in VM, placeholder
OBJECTREF pFault; // exception
OBJECTREF pID; // not used in VM, placeholder
OBJECTREF pSrvID; // not used in VM, placeholder
OBJECTREF pArgMapper; // not used in VM, placeholder
OBJECTREF pCallCtx; // not used in VM, placeholder
FramedMethodFrame *pFrame;
MethodDesc *pMethodDesc;
MetaSig *pMetaSigHolder;
MethodDesc *pDelegateMD;
TypeHandle thGoverningType;
INT32 iFlags;
CLR_BOOL initDone; // called the native Init routine
};
#ifdef USE_CHECKED_OBJECTREFS
typedef REF<MessageObject> MESSAGEREF;
#else
typedef MessageObject* MESSAGEREF;
#endif
// *******
// Note: Needs to be in sync with flags in Message.cs
// *******
enum
{
MSGFLG_BEGININVOKE = 0x01,
MSGFLG_ENDINVOKE = 0x02,
MSGFLG_CTOR = 0x04,
MSGFLG_ONEWAY = 0x08,
MSGFLG_FIXEDARGS = 0x10,
MSGFLG_VARARGS = 0x20
};
//+----------------------------------------------------------
//
// Class: CMessage
//
// Synopsis: EE counterpart to Microsoft.Runtime.Message.
// Encapsulates code to read a function call
// frame into an interface that can enumerate
// the parameters.
//
//
//------------------------------------------------------------
class CMessage
{
public:
// public fcalls.
static FCDECL1(INT32, GetArgCount, MessageObject *pMsg);
static FCDECL2(Object*, GetArg, MessageObject* pMessage, INT32 argNum);
static FCDECL1(Object*, GetArgs, MessageObject* pMessageUNSAFE);
static FCDECL3(void, PropagateOutParameters, MessageObject* pMessageUNSAFE, ArrayBase* pOutPrmsUNSAFE, Object* RetValUNSAFE);
static FCDECL1(Object*, GetReturnValue, MessageObject* pMessageUNSAFE);
static FCDECL3(void, GetAsyncBeginInfo, MessageObject* pMessageUNSAFE, OBJECTREF* ppACBD, OBJECTREF* ppState);
static FCDECL1(LPVOID, GetAsyncResult, MessageObject* pMessageUNSAFE);
static FCDECL1(Object*, GetAsyncObject, MessageObject* pMessageUNSAFE);
static FCDECL1(void, DebugOut, StringObject* pOutUNSAFE);
static FCDECL2(FC_BOOL_RET, Dispatch, MessageObject* pMessageUNSAFE, Object* pServerUNSAFE);
static FCDECL1(FC_BOOL_RET, HasVarArgs, MessageObject * poMessage);
public:
// public helper
static void GetObjectFromStack(OBJECTREF* ppDest, PVOID val, const CorElementType eType, TypeHandle ty, BOOL fIsByRef = FALSE, FramedMethodFrame *pFrame = NULL);
private:
// private helpers
static PVOID GetStackPtr(INT32 ndx, FramedMethodFrame *pFrame, MetaSig *pSig);
static int GetStackOffset (FramedMethodFrame *pFrame, ArgIterator *pArgIter, MetaSig *pSig);
static INT64 __stdcall CallMethod(const void *pTarget,
INT32 cArgs,
FramedMethodFrame *pFrame,
OBJECTREF pObj);
static INT64 CopyOBJECTREFToStack(PVOID pvDest, OBJECTREF *pSrc, CorElementType typ, TypeHandle ty, MetaSig *pSig, BOOL fCopyClassContents);
static LPVOID GetLastArgument(MESSAGEREF *pMsg);
static void AppendAssemblyName(CQuickBytes &out, const CHAR* str);
};
#endif // ___MESSAGE_H___
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