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52 lines
1.6 KiB
PHP
52 lines
1.6 KiB
PHP
{
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Basic heap handling for windows platforms
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This file is part of the Free Pascal run time library.
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Copyright (c) 2001-2005 by Free Pascal development team
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{*****************************************************************************
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OS Memory allocation / deallocation
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****************************************************************************}
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{ memory functions }
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function GetProcessHeap : THandle;
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stdcall;external 'kernel32' name 'GetProcessHeap';
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function HeapAlloc(hHeap : DWord; dwFlags : DWord; dwBytes : SIZE_T) : pointer;
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stdcall;external 'kernel32' name 'HeapAlloc';
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function HeapFree(hHeap : THandle; dwFlags : dword; lpMem: pointer) : boolean;
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stdcall;external 'kernel32' name 'HeapFree';
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{$IFDEF SYSTEMDEBUG}
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function WinAPIHeapSize(hHeap : THandle; dwFlags : DWord; ptr : Pointer) : DWord;
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stdcall;external 'kernel32' name 'HeapSize';
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{$ENDIF}
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function SysOSAlloc(size: ptrint): pointer;
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var
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p : pointer;
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begin
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p := HeapAlloc(GetProcessHeap, 0, size);
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{$ifdef DUMPGROW}
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Writeln('new heap part at $',hexstr(ptrint(p),sizeof(ptrint)*2), ' size = ',WinAPIHeapSize(GetProcessHeap()));
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{$endif}
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SysOSAlloc := p;
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end;
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{$define HAS_SYSOSFREE}
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procedure SysOSFree(p: pointer; size: ptrint);
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begin
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HeapFree(GetProcessHeap, 0, p);
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end;
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