369 lines
9.4 KiB
C++
369 lines
9.4 KiB
C++
//------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------
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#ifndef UNICODE
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#define UNICODE
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#endif
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#include "WebServices.h"
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#include "process.h"
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#include "stdio.h"
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#include "string.h"
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#include <intsafe.h>
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#include "SessionBasedCalculatorService.wsdl.h"
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HANDLE closeServer = NULL;
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class SessionfulCalculator
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{
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int total;
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public:
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static HRESULT CALLBACK Add(
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__in const WS_OPERATION_CONTEXT* context,
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__in int a,
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__in_opt const WS_ASYNC_CONTEXT* asyncContext,
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__in_opt WS_ERROR* error)
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{
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UNREFERENCED_PARAMETER(asyncContext);
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HRESULT hr = S_OK;
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SessionfulCalculator* calculator = NULL;
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hr = WsGetOperationContextProperty(
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context,
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WS_OPERATION_CONTEXT_PROPERTY_CHANNEL_USER_STATE,
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&calculator,
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sizeof(SessionfulCalculator*),
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error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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hr = calculator->Add(a);
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Exit:
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return hr;
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}
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static HRESULT CALLBACK Subtract(
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__in const WS_OPERATION_CONTEXT* context,
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__in int a,
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__in_opt const WS_ASYNC_CONTEXT* asyncContext,
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__in_opt WS_ERROR* error)
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{
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UNREFERENCED_PARAMETER(asyncContext);
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HRESULT hr = S_OK;
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SessionfulCalculator* calculator = NULL;
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hr = WsGetOperationContextProperty(
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context,
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WS_OPERATION_CONTEXT_PROPERTY_CHANNEL_USER_STATE,
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&calculator,
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sizeof(SessionfulCalculator*),
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error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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hr = calculator->Subtract(a);
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Exit:
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return hr;
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}
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static HRESULT CALLBACK Clear(
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__in const WS_OPERATION_CONTEXT* context,
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__in const WS_ASYNC_CONTEXT* asyncContext,
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__in_opt WS_ERROR* error)
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{
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UNREFERENCED_PARAMETER(asyncContext);
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HRESULT hr = S_OK;
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SessionfulCalculator* calculator = NULL;
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hr = WsGetOperationContextProperty(
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context,
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WS_OPERATION_CONTEXT_PROPERTY_CHANNEL_USER_STATE,
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&calculator,
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sizeof(SessionfulCalculator*),
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error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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hr = calculator->Clear();
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Exit:
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return hr;
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}
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static HRESULT CALLBACK Total(
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__in const WS_OPERATION_CONTEXT* context,
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__out int* total,
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__in_opt const WS_ASYNC_CONTEXT* asyncContext,
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__in_opt WS_ERROR* error)
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{
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UNREFERENCED_PARAMETER(asyncContext);
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HRESULT hr = S_OK;
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SessionfulCalculator* calculator = NULL;
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hr = WsGetOperationContextProperty(
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context,
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WS_OPERATION_CONTEXT_PROPERTY_CHANNEL_USER_STATE,
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&calculator,
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sizeof(SessionfulCalculator*),
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error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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hr = calculator->Total(total);
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Exit:
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return hr;
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}
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private:
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HRESULT Add(
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__in int a)
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{
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wprintf(L"Adding %d to a total of %d\n", a, total);
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total += a;
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fflush(stdout);
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return S_OK;
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}
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HRESULT Subtract(
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__in int a)
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{
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wprintf(L"Subtracting %d from a total of %d\n", a, total);
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total -= a;
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fflush(stdout);
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return S_OK;
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}
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HRESULT Clear()
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{
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total = 0;
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wprintf(L"Cleared!\n");
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fflush(stdout);
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return S_OK;
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}
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HRESULT Total(
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__out int* result)
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{
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wprintf(L"The total is %d\n",total);
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*result = total;
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fflush(stdout);
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return S_OK;
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}
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};
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// Print out rich error info
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void PrintError(
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__in HRESULT errorCode,
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__in_opt WS_ERROR* error)
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{
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wprintf(L"Failure: errorCode=0x%lx\n", errorCode);
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if (errorCode == E_INVALIDARG || errorCode == WS_E_INVALID_OPERATION)
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{
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// Correct use of the APIs should never generate these errors
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wprintf(L"The error was due to an invalid use of an API. This is likely due to a bug in the program.\n");
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DebugBreak();
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}
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HRESULT hr = S_OK;
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if (error != NULL)
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{
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ULONG errorCount;
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hr = WsGetErrorProperty(error, WS_ERROR_PROPERTY_STRING_COUNT, &errorCount, sizeof(errorCount));
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if (FAILED(hr))
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{
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goto Exit;
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}
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for (ULONG i = 0; i < errorCount; i++)
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{
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WS_STRING string;
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hr = WsGetErrorString(error, i, &string);
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if (FAILED(hr))
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{
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goto Exit;
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}
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wprintf(L"%.*s\n", string.length, string.chars);
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}
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}
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Exit:
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if (FAILED(hr))
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{
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wprintf(L"Could not get error string (errorCode=0x%lx)\n", hr);
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}
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}
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HRESULT CALLBACK CreateSessionCalculator(
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__in const WS_OPERATION_CONTEXT* context,
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__deref_out void** channelState,
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__in_opt const WS_ASYNC_CONTEXT* asyncContext,
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__in_opt WS_ERROR* error)
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{
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UNREFERENCED_PARAMETER(context);
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UNREFERENCED_PARAMETER(asyncContext);
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UNREFERENCED_PARAMETER(error);
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wprintf(L"Creating Calculator instance\n");
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SessionfulCalculator* calculator = new SessionfulCalculator();
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if (calculator)
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{
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*channelState = (void*)calculator;
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}
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else
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{
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return E_OUTOFMEMORY;
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}
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return S_OK;
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}
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HRESULT CALLBACK FreeSessionCalculator(
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__in const WS_OPERATION_CONTEXT* context,
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__in const WS_ASYNC_CONTEXT* asyncContext)
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{
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UNREFERENCED_PARAMETER(asyncContext);
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SessionfulCalculator* calculator = NULL;
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WsGetOperationContextProperty(
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context,
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WS_OPERATION_CONTEXT_PROPERTY_CHANNEL_USER_STATE,
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&calculator,
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sizeof(SessionfulCalculator*),
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NULL);
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if (calculator != NULL)
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{
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wprintf(L"Deleting Calculator instance\n");
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delete calculator;
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}
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SetEvent(closeServer);
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return S_OK;
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}
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static const
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CalculatorBindingFunctionTable
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calculatorFunctions = {
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SessionfulCalculator::Add,
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SessionfulCalculator::Subtract,
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SessionfulCalculator::Total,
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SessionfulCalculator::Clear
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};
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// Method contract for the service
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static const WS_SERVICE_CONTRACT calculatorServiceContract =
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{
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&SessionBasedCalculatorService_wsdl.contracts.CalculatorBinding, // comes from the generated header.
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NULL, // for not specifying the default contract
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&calculatorFunctions // specified by the user
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};
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// Main entry point
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int __cdecl wmain()
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{
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HRESULT hr = S_OK;
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WS_SERVICE_HOST* host = NULL;
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WS_SERVICE_ENDPOINT serviceEndpoint = {};
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const WS_SERVICE_ENDPOINT* serviceEndpoints[1];
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serviceEndpoints[0] = &serviceEndpoint;
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WS_ERROR* error = NULL;
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WS_SERVICE_ENDPOINT_PROPERTY serviceProperties[2];
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WS_SERVICE_PROPERTY_ACCEPT_CALLBACK acceptCallbackProperty = {CreateSessionCalculator};
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WS_SERVICE_PROPERTY_CLOSE_CALLBACK closeCallbackProperty = {FreeSessionCalculator};
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serviceProperties[0].id = WS_SERVICE_ENDPOINT_PROPERTY_ACCEPT_CHANNEL_CALLBACK;
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serviceProperties[0].value = &acceptCallbackProperty;
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serviceProperties[0].valueSize = sizeof(acceptCallbackProperty);
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serviceProperties[1].id = WS_SERVICE_ENDPOINT_PROPERTY_CLOSE_CHANNEL_CALLBACK;
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serviceProperties[1].value = &closeCallbackProperty;
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serviceProperties[1].valueSize = sizeof(closeCallbackProperty);
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// Initialize service endpoint
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serviceEndpoint.address.url.chars = L"net.tcp://+/example"; // address given as uri
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serviceEndpoint.address.url.length = (ULONG)wcslen(serviceEndpoint.address.url.chars);
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serviceEndpoint.channelBinding = WS_TCP_CHANNEL_BINDING; // channel binding for the endpoint
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serviceEndpoint.channelType = WS_CHANNEL_TYPE_DUPLEX_SESSION; // the channel type
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serviceEndpoint.contract = &calculatorServiceContract; // the contract
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serviceEndpoint.properties = serviceProperties;
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serviceEndpoint.propertyCount = WsCountOf(serviceProperties);
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// Create an error object for storing rich error information
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hr = WsCreateError(
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NULL,
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0,
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&error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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// Create Event object for closing the server
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closeServer = CreateEvent(
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NULL,
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TRUE,
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FALSE,
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NULL);
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if (closeServer == NULL)
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{
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hr = HRESULT_FROM_WIN32(GetLastError());
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goto Exit;
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}
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// Creating a service host
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hr = WsCreateServiceHost(
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serviceEndpoints,
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1,
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NULL,
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0,
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&host,
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error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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// WsOpenServiceHost to start the listeners in the service host
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hr = WsOpenServiceHost(
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host,
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NULL,
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error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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WaitForSingleObject(closeServer, INFINITE);
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// Close the service host
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hr = WsCloseServiceHost(host, NULL, error);
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if (FAILED(hr))
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{
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goto Exit;
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}
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Exit:
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if (FAILED(hr))
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{
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// Print out the error
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PrintError(hr, error);
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}
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if (host != NULL)
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{
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WsFreeServiceHost(host);
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}
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if (error != NULL)
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{
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WsFreeError(error);
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}
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if (closeServer != NULL)
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{
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CloseHandle(closeServer);
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}
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fflush(stdout);
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return SUCCEEDED(hr) ? 0 : -1;
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}
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