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86 lines
2.2 KiB
PHP
86 lines
2.2 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by the Free Pascal development team
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Implement OS-dependent part of dynamic library loading.
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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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{$ifdef readinterface}
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{ ---------------------------------------------------------------------
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Interface declarations
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---------------------------------------------------------------------}
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Type
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{ using PtrInt here is compliant with the other platforms }
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TLibHandle = PtrInt;
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Const
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NilHandle = TLibHandle(0);
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// these are for easier crossplatform construction of dll names in dynloading libs.
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{$if defined(Darwin)}
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SharedSuffix = 'dylib';
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{$elseif defined(aix)}
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SharedSuffix = 'a';
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{$else}
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SharedSuffix = 'so';
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{$endif}
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{$else}
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{ ---------------------------------------------------------------------
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Implementation section
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---------------------------------------------------------------------}
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uses dl;
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Function LoadLibrary(const Name : AnsiString) : TLibHandle;
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{$ifdef aix}
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var
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MemberName: AnsiString;
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{$endif}
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begin
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{$ifndef aix}
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Result:=TLibHandle(dlopen(Pchar(Name),RTLD_LAZY));
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{$else aix}
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{ in aix, most shared libraries are static libraries (archives) that contain
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a single object: shr.o for 32 bit, shr_64.o for 64 bit. You have to specify
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this object file explicitly via the RTLD_MEMBER member flag }
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{$ifdef cpu64}
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MemberName:=Name+'(shr_64.o)';
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{$else cpu64}
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MemberName:=Name+'(shr.o)';
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{$endif cpu64}
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Result:=TLibHandle(dlopen(Pchar(MemberName),RTLD_LAZY or RTLD_MEMBER));
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{$endif aix}
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end;
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Function GetProcedureAddress(Lib : TLibHandle; const ProcName : AnsiString) : Pointer;
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begin
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Result:=dlsym(lib,pchar(ProcName));
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end;
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Function UnloadLibrary(Lib : TLibHandle) : Boolean;
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begin
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Result:=dlClose(Lib)=0;
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end;
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Function GetLoadErrorStr: string;
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begin
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Result:=dl.dlerror;
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end;
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{$endif}
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