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//*********************************************************
//
// Copyright (c) Microsoft. All rights reserved.
// This code is licensed under the MIT License (MIT).
// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
//
//*********************************************************
// There is an error in the system header files that incorrectly
// places RpcStringBindingCompose in the app partition.
// Work around it by changing the WINAPI_FAMILY to desktop temporarily.
#pragma push_macro("WINAPI_FAMILY")
#undef WINAPI_FAMILY
#define WINAPI_FAMILY WINAPI_FAMILY_DESKTOP_APP
#include "RpcClient.h"
#pragma pop_macro("WINAPI_FAMILY")
using namespace SDKTemplate;
__int64 RpcClient::Initialize()
{
RPC_STATUS status;
RPC_WSTR pszStringBinding = nullptr;
status = RpcStringBindingCompose(
NULL,
reinterpret_cast<RPC_WSTR>(L"ncalrpc"),
NULL,
reinterpret_cast<RPC_WSTR>(RPC_STATIC_ENDPOINT),
NULL,
&pszStringBinding);
if (status)
{
goto error_status;
}
status = RpcBindingFromStringBinding(
pszStringBinding,
&hRpcBinding);
if (status)
{
goto error_status;
}
status = RpcStringFree(&pszStringBinding);
if (status)
{
goto error_status;
}
RpcTryExcept
{
::RemoteOpen(hRpcBinding, &phContext);
}
RpcExcept(1)
{
status = RpcExceptionCode();
}
RpcEndExcept
error_status:
return status;
}
//
// Make RPC call to start metering. This is a blocking call and
// will return only after StopMetering is called.
//
__int64 RpcClient::StartMeteringAndWaitForStop(__int64 samplePeriod)
{
__int64 ulCode = 0;
CallbackCount = 0;
MeteringData = 0;
RpcTryExcept
{
::StartMetering(phContext, samplePeriod, (__int64)this);
}
RpcExcept(1)
{
ulCode = RpcExceptionCode();
}
RpcEndExcept
return ulCode;
}
//
// Make rpc call SetSampleRate
//
__int64 RpcClient::SetSampleRate(int rate)
{
__int64 ulCode = 0;
RpcTryExcept
{
::SetSamplePeriod(phContext, rate);
}
RpcExcept(1)
{
ulCode = RpcExceptionCode();
}
RpcEndExcept
return ulCode;
}
//
// Make rpc call StopMetering
//
__int64 RpcClient::StopMetering()
{
__int64 ulCode = 0;
RpcTryExcept
{
::StopMetering(phContext);
}
RpcExcept(1)
{
ulCode = RpcExceptionCode();
}
RpcEndExcept
return ulCode;
}
RpcClient::~RpcClient()
{
RPC_STATUS status;
if (hRpcBinding != NULL)
{
RpcTryExcept
{
::RemoteClose(&phContext);
}
RpcExcept(1)
{
// Ignoring the result of RemoteClose as nothing can be
// done on the client side with this return code
status = RpcExceptionCode();
}
RpcEndExcept
status = RpcBindingFree(&hRpcBinding);
hRpcBinding = NULL;
}
}
//
// Metering rpc callback
//
void MeteringDataEvent(__int64 data, __int64 context)
{
RpcClient* client = static_cast<RpcClient*>((PVOID)context);
client->MeteringData = data;
++client->CallbackCount;
}
///******************************************************/
///* MIDL allocate and free */
///******************************************************/
void __RPC_FAR * __RPC_USER midl_user_allocate(size_t len)
{
return(malloc(len));
}
void __RPC_USER midl_user_free(void __RPC_FAR * ptr)
{
free(ptr);
}
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