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0a9c97a255
2.- Cleanup. 3.- Mark a disastrous condition in Stream::allocSegment in DEBUG mode at least so it can be detected: potentially negative argument to new char[<number>] if the caller of the function doesn't do what's expected by this function. 4.- Now that the weed JString was eradicated, rename Stream::getJString to getFBString and put an assertion to verify the initial assumption (in the worst case, it could be a buffer overrun). 5.- Fix a deallocation bug (probable heap corruption) in Stream::truncate because delete[] should be used instead of plain delete. Generally speaking, the code inherited from Vulcan is so weak that expects the caller to know the internal logic of the callee to do the right thing to avoid crashing the callee. This is a general problem with the files in the "config" dir.
98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/*
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*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/idpl.html.
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*
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* Software distributed under the License is distributed on
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* an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
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* express or implied. See the License for the specific
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* language governing rights and limitations under the License.
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*
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* The contents of this file or any work derived from this file
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* may not be distributed under any other license whatsoever
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* without the express prior written permission of the original
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* author.
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*
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*
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* The Original Code was created by James A. Starkey for IBPhoenix.
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*
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* Copyright (c) 1997 - 2000, 2001, 2003 James A. Starkey
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* Copyright (c) 1997 - 2000, 2001, 2003 Netfrastructure, Inc.
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* All Rights Reserved.
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*/
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// Stream.h: interface for the Stream class.
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//
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//////////////////////////////////////////////////////////////////////
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#if !defined(AFX_STREAM_H__02AD6A53_A433_11D2_AB5B_0000C01D2301__INCLUDED_)
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#define AFX_STREAM_H__02AD6A53_A433_11D2_AB5B_0000C01D2301__INCLUDED_
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#if defined _MSC_VER && _MSC_VER >= 1000
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#pragma once
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#endif // _MSC_VER >= 1000
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#include "../common/classes/fb_string.h"
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START_NAMESPACE
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class Stream : public Firebird::GlobalStorage
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{
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public:
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enum { FIXED_SEGMENT_SIZE = 1024 };
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struct Segment
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{
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int length;
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char *address;
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Segment *next;
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char tail [FIXED_SEGMENT_SIZE];
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};
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explicit Stream (int minSegmentSize = FIXED_SEGMENT_SIZE);
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virtual ~Stream();
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int compare (const Stream *stream) const;
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void truncate (int length);
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void format (const char *pattern, ...);
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void putSegment (int length, const unsigned short *chars);
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void putSegment (Stream *stream);
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virtual void putSegment (const char *string);
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virtual void putSegment (int length, const char *address, bool copy);
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void putCharacter (char c);
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virtual void setSegment (Segment *segment, int length, void* address);
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virtual int getSegment (int offset, int len, void* ptr) const;
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virtual int getSegment (int offset, int len, void *ptr, char delimiter) const;
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void* getSegment (int offset);
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const void* getSegment (int offset) const;
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int getSegmentLength(int offset) const;
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Firebird::string getFBString() const;
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virtual char* getString();
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void clear();
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virtual int getLength() const;
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virtual char* alloc (int length);
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Segment* allocSegment (int tail);
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void setMinSegment (int length);
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int totalLength;
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//int useCount;
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Segment *segments; // used by StreamSegment::setStream
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private:
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int minSegment;
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int currentLength;
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int decompressedLength;
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bool copyFlag;
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Segment first;
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Segment *current;
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};
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END_NAMESPACE
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#endif // !defined(AFX_STREAM_H__02AD6A53_A433_11D2_AB5B_0000C01D2301__INCLUDED_)
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