node-sqlserver/src/Utility.cpp at master · Azure/node-sqlserver · GitHub

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//---------------------------------------------------------------------------------------------------------------------------------

// File: Utility.cpp

// Contents: Utility functions used in Microsoft Driver for Node.js for SQL Server

// Copyright Microsoft Corporation and contributors

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at:

// http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

//---------------------------------------------------------------------------------------------------------------------------------

#include "stdafx.h"

namespace mssql

{

using namespace std;

using namespace v8;

wstring FromV8String(Handle<String> input)

{

wstring result;

const int bufferLength = 256;

uint16_t buffer[bufferLength];

int length = input->Length();

result.reserve(length);

int read = 0;

while (read < length)

{

int toread = min(bufferLength, length - read);

int actual = input->Write(buffer, read, toread);

result.append(reinterpret_cast<const wchar_t*>(buffer), actual);

read += actual;

}

return result;

}

string w2a(const wchar_t* input)

{

vector<char> messageBuffer;

int length = ::WideCharToMultiByte(CP_ACP, 0, input, -1, nullptr, 0, nullptr, nullptr);

if (length > 0)

{

// length includes null terminator

messageBuffer.resize(length);

::WideCharToMultiByte(CP_ACP, 0, input, -1, messageBuffer.data(), messageBuffer.size(), nullptr, nullptr);

}

return string(messageBuffer.data());

}

node-sqlserver/src/Utility.cpp at master · Azure/node-sqlserver · GitHub

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