135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
/*******************************************************************************
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Copyright (c) 2010, Perforce Software, Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL PERFORCE SOFTWARE, INC. BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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/*******************************************************************************
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* Name : StrRef.h
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*
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* Author : Duncan Barbee <dbarbee@perforce.com>
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*
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* Description : A set of classes used to return strings.
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*
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******************************************************************************/
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#pragma once
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class StrPtr;
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/******************************************************************************
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// StrRef is an abstract base class for any reference to text data that needs
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// to be returned from the bridge. It provides a char* + length interface so
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// that it can easily be returned in a preallocated buffer by first reading
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// the length, allocating the buffer, then fetching string data.
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******************************************************************************/
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class OutStr abstract: public p4base
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{
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public:
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OutStr(void) : p4base(Type()) {};
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virtual ~OutStr(void) {};
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virtual int Type(void) { return tOutStr; }
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void CopyToBuff( void * buff, int length);
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// Get the Text data and it's length
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virtual int IsUnicode() = 0;
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virtual const char * Text() = 0;
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virtual int Length() = 0;
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};
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/******************************************************************************
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// StrPtrRef is wrap a StrPtr object, so that it can easily be returned in a
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// preallocated buffer by first reading the length, allocating the buffer,
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// then fetching string data.
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******************************************************************************/
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class OutStrPtr : public OutStr
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{
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public:
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OutStrPtr(const StrPtr &pval, int isUni);
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virtual ~OutStrPtr(void);
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// Get the Text data and it's length
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virtual int IsUnicode() { return isUnicode; }
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virtual const char * Text();
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virtual int Length();
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private:
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// Don't allow uninitialized references
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//StrPtrRef(void) {};
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int isUnicode;
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const StrPtr &value;
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};
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/******************************************************************************
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// CharPtrRef is wrap a char *, so that it can easily be returned in a
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// preallocated buffer by first reading the length, allocating the buffer,
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// then fetching string data.
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******************************************************************************/
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class OutCharPtr : public OutStr
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{
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public:
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OutCharPtr(char * pval);
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virtual ~OutCharPtr(void);
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// Get the Text data and it's length
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virtual int IsUnicode() { return 0; }
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virtual const char * Text();
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virtual int Length();
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private:
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// Don't allow uninitialized references
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OutCharPtr(void) {};
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char * value;
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int length;
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};
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/******************************************************************************
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// CharPtrRef is wrap a char *, so that it can easily be returned in a
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// preallocated buffer by first reading the length, allocating the buffer,
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// then fetching string data.
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******************************************************************************/
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class OutWCharPtr : public OutStr
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{
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public:
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OutWCharPtr(WCHAR * pval);
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virtual ~OutWCharPtr(void);
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// Get the Text data and it's length
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virtual int IsUnicode() { return 1; }
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virtual const char * Text();
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virtual int Length();
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private:
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// Don't allow uninitialized references
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OutWCharPtr(void) {};
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WCHAR * value;
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int length;
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};
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