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rpcrt4: Implement NdrAsyncServerCall. 

Based on NdrStubCall2 and NdrAsyncClientCall implementations.

In order to test asynchronous RPC I used dlls/rpcrt4/tests/server.c as a base,
converted int_return() and sum() to use asynchronous RPC on both client and
server sides (server.idl doesn't need any changes), and added server.acf:
interface IServer
{
    [async] int_return();
    [async] sum();
}
With this implementation these tests pass under Wine. Since widl doesn't
support asynchronous RPC it's impossible to add appropriate Wine tests.

Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Dmitry Timoshkov 2019-09-13 13:34:33 +08:00 committed by Alexandre Julliard
parent bb7c119190
commit 29fa835687
3 changed files with 199 additions and 17 deletions
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190
dlls/rpcrt4/ndr_stubless.c
View File

@ -1559,21 +1559,6 @@ void WINAPI NdrServerCallAll( PRPC_MESSAGE msg )
FIXME("%p stub\n", msg);
}
struct async_call_data
{
MIDL_STUB_MESSAGE *pStubMsg;
const NDR_PROC_HEADER *pProcHeader;
PFORMAT_STRING pHandleFormat;
PFORMAT_STRING pParamFormat;
RPC_BINDING_HANDLE hBinding;
/* size of stack */
unsigned short stack_size;
/* number of parameters. optional for client to give it to us */
unsigned int number_of_params;
/* correlation cache */
ULONG_PTR NdrCorrCache[256];
};
/* Helper for ndr_async_client_call, to factor out the part that may or may not be
* guarded by a try/except block. */
static void do_ndr_async_client_call( const MIDL_STUB_DESC *pStubDesc, PFORMAT_STRING pFormat, void **stack_top )
@ -1922,5 +1907,178 @@ RPCRTAPI LONG RPC_ENTRY NdrAsyncStubCall(struct IRpcStubBuffer* pThis,
void RPC_ENTRY NdrAsyncServerCall(PRPC_MESSAGE pRpcMsg)
{
FIXME("unimplemented, %p\n", pRpcMsg);
const MIDL_SERVER_INFO *pServerInfo;
const MIDL_STUB_DESC *pStubDesc;
PFORMAT_STRING pFormat;
/* pointer to start of stack to pass into stub implementation */
unsigned char *args;
/* header for procedure string */
const NDR_PROC_HEADER *pProcHeader;
struct async_call_data *async_call_data;
PRPC_ASYNC_STATE pAsync;
RPC_STATUS status;
TRACE("%p\n", pRpcMsg);
pServerInfo = ((RPC_SERVER_INTERFACE *)pRpcMsg->RpcInterfaceInformation)->InterpreterInfo;
pStubDesc = pServerInfo->pStubDesc;
pFormat = pServerInfo->ProcString + pServerInfo->FmtStringOffset[pRpcMsg->ProcNum];
pProcHeader = (const NDR_PROC_HEADER *)&pFormat[0];
TRACE("NDR Version: 0x%x\n", pStubDesc->Version);
async_call_data = I_RpcAllocate(sizeof(*async_call_data) + sizeof(MIDL_STUB_MESSAGE) + sizeof(RPC_MESSAGE));
if (!async_call_data) RpcRaiseException(RPC_X_NO_MEMORY);
async_call_data->pProcHeader = pProcHeader;
async_call_data->pStubMsg = (PMIDL_STUB_MESSAGE)(async_call_data + 1);
*(PRPC_MESSAGE)(async_call_data->pStubMsg + 1) = *pRpcMsg;
if (pProcHeader->Oi_flags & Oi_HAS_RPCFLAGS)
{
const NDR_PROC_HEADER_RPC *header_rpc = (const NDR_PROC_HEADER_RPC *)&pFormat[0];
async_call_data->stack_size = header_rpc->stack_size;
pFormat += sizeof(NDR_PROC_HEADER_RPC);
}
else
{
async_call_data->stack_size = pProcHeader->stack_size;
pFormat += sizeof(NDR_PROC_HEADER);
}
TRACE("Oi_flags = 0x%02x\n", pProcHeader->Oi_flags);
/* binding */
switch (pProcHeader->handle_type)
{
/* explicit binding: parse additional section */
case 0:
switch (*pFormat) /* handle_type */
{
case FC_BIND_PRIMITIVE: /* explicit primitive */
pFormat += sizeof(NDR_EHD_PRIMITIVE);
break;
case FC_BIND_GENERIC: /* explicit generic */
pFormat += sizeof(NDR_EHD_GENERIC);
break;
case FC_BIND_CONTEXT: /* explicit context */
pFormat += sizeof(NDR_EHD_CONTEXT);
break;
default:
ERR("bad explicit binding handle type (0x%02x)\n", pProcHeader->handle_type);
RpcRaiseException(RPC_X_BAD_STUB_DATA);
}
break;
case FC_BIND_GENERIC: /* implicit generic */
case FC_BIND_PRIMITIVE: /* implicit primitive */
case FC_CALLBACK_HANDLE: /* implicit callback */
case FC_AUTO_HANDLE: /* implicit auto handle */
break;
default:
ERR("bad implicit binding handle type (0x%02x)\n", pProcHeader->handle_type);
RpcRaiseException(RPC_X_BAD_STUB_DATA);
}
if (pProcHeader->Oi_flags & Oi_OBJECT_PROC)
{
ERR("objects not supported\n");
I_RpcFree(async_call_data);
RpcRaiseException(RPC_X_BAD_STUB_DATA);
}
NdrServerInitializeNew(pRpcMsg, async_call_data->pStubMsg, pStubDesc);
/* create the full pointer translation tables, if requested */
if (pProcHeader->Oi_flags & Oi_FULL_PTR_USED)
async_call_data->pStubMsg->FullPtrXlatTables = NdrFullPointerXlatInit(0, XLAT_SERVER);
/* use alternate memory allocation routines */
if (pProcHeader->Oi_flags & Oi_RPCSS_ALLOC_USED)
#if 0
NdrRpcSsEnableAllocate(&stubMsg);
#else
FIXME("Set RPCSS memory allocation routines\n");
#endif
TRACE("allocating memory for stack of size %x\n", async_call_data->stack_size);
args = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, async_call_data->stack_size);
async_call_data->pStubMsg->StackTop = args; /* used by conformance of top-level objects */
pAsync = I_RpcAllocate(sizeof(*pAsync));
if (!pAsync) RpcRaiseException(RPC_X_NO_MEMORY);
status = RpcAsyncInitializeHandle(pAsync, sizeof(*pAsync));
if (status != RPC_S_OK)
RpcRaiseException(status);
pAsync->StubInfo = async_call_data;
TRACE("pAsync %p, pAsync->StubInfo %p, pFormat %p\n", pAsync, pAsync->StubInfo, async_call_data->pHandleFormat);
/* add the implicit pAsync pointer as the first arg to the function */
*(void **)args = pAsync;
if (is_oicf_stubdesc(pStubDesc))
{
const NDR_PROC_PARTIAL_OIF_HEADER *pOIFHeader = (const NDR_PROC_PARTIAL_OIF_HEADER *)pFormat;
/* cache of Oif_flags from v2 procedure header */
INTERPRETER_OPT_FLAGS Oif_flags;
/* cache of extension flags from NDR_PROC_HEADER_EXTS */
INTERPRETER_OPT_FLAGS2 ext_flags = { 0 };
Oif_flags = pOIFHeader->Oi2Flags;
async_call_data->number_of_params = pOIFHeader->number_of_params;
pFormat += sizeof(NDR_PROC_PARTIAL_OIF_HEADER);
TRACE("Oif_flags = %s\n", debugstr_INTERPRETER_OPT_FLAGS(Oif_flags) );
if (Oif_flags.HasExtensions)
{
const NDR_PROC_HEADER_EXTS *pExtensions = (const NDR_PROC_HEADER_EXTS *)pFormat;
ext_flags = pExtensions->Flags2;
pFormat += pExtensions->Size;
}
if (Oif_flags.HasPipes)
{
FIXME("pipes not supported yet\n");
RpcRaiseException(RPC_X_WRONG_STUB_VERSION); /* FIXME: remove when implemented */
/* init pipes package */
/* NdrPipesInitialize(...) */
}
if (ext_flags.HasNewCorrDesc)
{
/* initialize extra correlation package */
NdrCorrelationInitialize(async_call_data->pStubMsg, async_call_data->NdrCorrCache, sizeof(async_call_data->NdrCorrCache), 0);
if (ext_flags.Unused & 0x2) /* has range on conformance */
async_call_data->pStubMsg->CorrDespIncrement = 12;
}
}
else
{
pFormat = convert_old_args( async_call_data->pStubMsg, pFormat, async_call_data->stack_size,
pProcHeader->Oi_flags & Oi_OBJECT_PROC,
/* reuse the correlation cache, it's not needed for v1 format */
async_call_data->NdrCorrCache, sizeof(async_call_data->NdrCorrCache), &async_call_data->number_of_params );
}
/* convert strings, floating point values and endianness into our
* preferred format */
if ((pRpcMsg->DataRepresentation & 0x0000FFFFUL) != NDR_LOCAL_DATA_REPRESENTATION)
NdrConvert(async_call_data->pStubMsg, pFormat);
async_call_data->pHandleFormat = pFormat;
/* 1. UNMARSHAL */
TRACE("UNMARSHAL\n");
stub_do_args(async_call_data->pStubMsg, pFormat, STUBLESS_UNMARSHAL, async_call_data->number_of_params);
/* 2. CALLSERVER */
TRACE("CALLSERVER\n");
if (pServerInfo->ThunkTable && pServerInfo->ThunkTable[pRpcMsg->ProcNum])
pServerInfo->ThunkTable[pRpcMsg->ProcNum](async_call_data->pStubMsg);
else
call_server_func(pServerInfo->DispatchTable[pRpcMsg->ProcNum], args, async_call_data->stack_size);
}

15
dlls/rpcrt4/ndr_stubless.h
View File

@ -224,6 +224,21 @@ typedef struct _NDR_EHD_CONTEXT
#include "poppack.h"
struct async_call_data
{
MIDL_STUB_MESSAGE *pStubMsg;
const NDR_PROC_HEADER *pProcHeader;
PFORMAT_STRING pHandleFormat;
PFORMAT_STRING pParamFormat;
RPC_BINDING_HANDLE hBinding;
/* size of stack */
unsigned short stack_size;
/* number of parameters. optional for client to give it to us */
unsigned int number_of_params;
/* correlation cache */
ULONG_PTR NdrCorrCache[256];
};
enum stubless_phase
{
STUBLESS_UNMARSHAL,

9
dlls/rpcrt4/rpc_async.c
View File

@ -110,6 +110,8 @@ RPC_STATUS WINAPI RpcAsyncGetCallStatus(PRPC_ASYNC_STATE pAsync)
*/
RPC_STATUS WINAPI RpcAsyncCompleteCall(PRPC_ASYNC_STATE pAsync, void *Reply)
{
struct async_call_data *data;
TRACE("(%p, %p)\n", pAsync, Reply);
if (!valid_async_handle(pAsync))
@ -117,7 +119,14 @@ RPC_STATUS WINAPI RpcAsyncCompleteCall(PRPC_ASYNC_STATE pAsync, void *Reply)
/* FIXME: check completed */
TRACE("pAsync %p, pAsync->StubInfo %p\n", pAsync, pAsync->StubInfo);
data = pAsync->StubInfo;
if (data->pStubMsg->IsClient)
return NdrpCompleteAsyncClientCall(pAsync, Reply);
FIXME("not implemented for server side\n");
return RPC_S_CALL_FAILED;
}
/***********************************************************************