fxstring.cpp

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/*++
 
Copyright (c) Microsoft Corporation
 
Module Name:
 
    FxString.cpp
 
Abstract:
 
    This module implements a simple string class to operate on
    unicode strings.
 
Author:
 
 
 
Environment:
 
    Both kernel and user mode
 
Revision History:
 
--*/
 
#include "fxsupportpch.hpp"
 
FxString::FxString(
    __in PFX_DRIVER_GLOBALS FxDriverGlobals
    ) :
    FxObject(FX_TYPE_STRING, sizeof(FxString), FxDriverGlobals)
{
    RtlInitUnicodeString(&m_UnicodeString, NULL);
    MarkPassiveDispose(ObjectDoNotLock);
}
 
FxString::~FxString()
{
    if (m_UnicodeString.Buffer) {
        FxPoolFree(m_UnicodeString.Buffer);
    }
}
 
_Must_inspect_result_
NTSTATUS
FxString::Assign(
    __in const UNICODE_STRING* UnicodeString
    )
{
    return FxDuplicateUnicodeString(GetDriverGlobals(),
                                    UnicodeString,
                                    &m_UnicodeString);
}
 
_Must_inspect_result_
NTSTATUS
FxString::Assign(
    __in PCWSTR SourceString
    )
 
{
    UNICODE_STRING string;
 
    RtlInitUnicodeString(&string, SourceString);
 
    return Assign(&string);
}