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65 lines
1.9 KiB
PHP
65 lines
1.9 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2005 by Free Pascal development team
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Low level memory functions
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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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{ Enable this for memory allocation debugging }
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{DEFINE ASYS_FPC_MEMDEBUG}
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{*****************************************************************************
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OS Memory allocation / deallocation
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****************************************************************************}
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function SysOSAlloc(size: ptruint): pointer;
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{$IFDEF ASYS_FPC_MEMDEBUG}
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var values: array[0..2] of dword;
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{$ENDIF}
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begin
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{$IFDEF AMIGA}
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{ The mutex locking is only needed for AmigaOS, AROS and MorphOS has MEMF_SEM_PROTECTED }
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ObtainSemaphore(ASYS_heapSemaphore);
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{$ENDIF}
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result:=AllocPooled(ASYS_heapPool,size);
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{$IFDEF AMIGA}
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ReleaseSemaphore(ASYS_heapSemaphore);
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{$ENDIF}
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{$IFDEF ASYS_FPC_MEMDEBUG}
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values[0]:=dword(result);
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values[1]:=dword(size);
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values[2]:=DWord(Sptr-StackBottom);
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RawDoFmt('FPC_MEM_DEBUG: $%lx:=SysOSAlloc(%ld), free stack: %ld bytes'+#10,@values,pointer(1),nil);
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{$ENDIF}
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end;
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{$define HAS_SYSOSFREE}
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procedure SysOSFree(p: pointer; size: ptruint);
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{$IFDEF ASYS_FPC_MEMDEBUG}
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var values: array[0..2] of dword;
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{$ENDIF}
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begin
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{$IFDEF AMIGA}
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ObtainSemaphore(ASYS_heapSemaphore);
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{$ENDIF}
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FreePooled(ASYS_heapPool,p,size);
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{$IFDEF AMIGA}
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ReleaseSemaphore(ASYS_heapSemaphore);
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{$ENDIF}
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{$IFDEF ASYS_FPC_MEMDEBUG}
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values[0]:=dword(p);
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values[1]:=dword(size);
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values[2]:=DWord(Sptr-StackBottom);
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RawDoFmt('FPC_MEM_DEBUG: SysOSFree($%lx,%ld), free stack: %ld bytes'+#10,@values,pointer(1),nil);
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{$ENDIF}
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end;
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