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180 lines
4.9 KiB
180 lines
4.9 KiB
#ifndef _ZONE_HEAP_HPP_
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#define _ZONE_HEAP_HPP_
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// Ruler
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// 1 2 3 4 5 6 7 8
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//345678901234567890123456789012345678901234567890123456789012345678901234567890
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/********************************************************************/
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/* */
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/* The standard layout. */
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/* */
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/* The standard layout for 'hpp' files for this code is as */
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/* follows: */
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/* */
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/* 1. Include files. */
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/* 2. Constants exported from the class. */
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/* 3. Data structures exported from the class. */
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/* 4. Forward references to other data structures. */
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/* 5. Class specifications (including inline functions). */
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/* 6. Additional large inline functions. */
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/* */
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/* Any portion that is not required is simply omitted. */
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/* */
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/********************************************************************/
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#include "Rockall.hpp"
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#pragma warning( disable : 4100 )
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/********************************************************************/
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/* */
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/* A zone heap. */
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/* */
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/* A zone heap simply allocates a large amount of space and */
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/* allocates space by advancing a pointer down an array. */
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/* There is no way to free space except by deleting it all. */
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/* */
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/********************************************************************/
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class ROCKALL_DLL_LINKAGE ZONE_HEAP : public ROCKALL
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{
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//
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// Private type definitions.
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//
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typedef struct
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{
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char *Start;
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char *End;
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}
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ZONE;
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//
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// Private data.
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//
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int MaxSize;
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bool ThreadLocks;
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ZONE Zone;
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public:
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//
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// Public functions.
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//
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ZONE_HEAP
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(
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int MaxFreeSpace = 4194304,
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bool Recycle = true,
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bool SingleImage = false,
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bool ThreadSafe = true
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);
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//
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// Manipulate allocations.
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//
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// The first group of functions manipulate
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// single or small arrays of allocations.
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//
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virtual bool Delete
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(
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void *Address,
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int Size = NoSize
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)
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{ return false; }
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virtual bool Details
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(
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void *Address,
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int *Space = NULL
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)
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{ return false; }
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virtual bool MultipleDelete
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(
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int Actual,
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void *Array[],
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int Size = NoSize
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)
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{ return false; }
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virtual bool MultipleNew
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(
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int *Actual,
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void *Array[],
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int Requested,
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int Size,
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int *Space = NULL,
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bool Zero = false
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);
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virtual void *New
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(
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int Size,
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int *Space = NULL,
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bool Zero = false
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);
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virtual void *Resize
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(
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void *Address,
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int NewSize,
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int Move = -64,
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int *Space = NULL,
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bool NoDelete = false,
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bool Zero = false
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)
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{ return NULL; }
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virtual bool Verify
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(
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void *Address = NULL,
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int *Space = NULL
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)
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{ return false; }
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//
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// Manipulate the heap.
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//
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// The second group of functions act upon a heap
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// as a whole.
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//
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virtual void DeleteAll( bool Recycle = true );
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virtual bool Walk
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(
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bool *Active,
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void **Address,
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int *Space
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)
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{ return false; }
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~ZONE_HEAP( void );
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private:
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//
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// Private functions.
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//
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bool UpdateZone( ZONE *Original,ZONE *Update );
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//
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// Private inline functions.
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//
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void WriteZone( ZONE *Update )
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{
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auto ZONE Original = Zone;
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while ( ! UpdateZone( & Original,Update ) )
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{ Original = Zone; }
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}
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//
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// Disabled operations.
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//
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// All copy constructors and class assignment
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// operations are disabled.
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//
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ZONE_HEAP( const ZONE_HEAP & Copy );
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void operator=( const ZONE_HEAP & Copy );
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};
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#pragma warning( default : 4100 )
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#endif
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