76 lines
1.3 KiB
ObjectPascal
76 lines
1.3 KiB
ObjectPascal
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{******************************************}
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{ }
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{ FastReport VCL }
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{ support Mutex }
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{ }
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{ Copyright (c) 1998-2021 }
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{ by Fast Reports Inc. }
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{ }
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{******************************************}
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unit frxMutex;
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interface
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uses
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{$IFNDEF Linux}
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Windows
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{$ELSE}
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frxMutex_Linux
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{$ENDIF};
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type
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TfrxMutex = class
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private
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{$IFNDEF Linux}
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crit: THandle;
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{$ELSE}
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Sem: TfrxSemafor;
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{$ENDIF}
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public
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constructor Create(skey: String);
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destructor Destroy; override;
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procedure Lock;
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procedure Unlock;
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end;
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implementation
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constructor TfrxMutex.Create(skey: String);
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begin
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{$IFNDEF Linux}
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crit := CreateMutex(nil, True, PChar(skey));
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{$ELSE}
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Sem := CreatefrxSemafor(skey);
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{$ENDIF}
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end;
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destructor TfrxMutex.Destroy;
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begin
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{$IFNDEF Linux}
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CloseHandle(crit);
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{$ELSE}
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FreefrxSemafor(Sem);
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{$ENDIF}
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inherited;
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end;
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procedure TfrxMutex.Lock;
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begin
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{$IFNDEF Linux}
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WaitForSingleObject(crit, INFINITE);
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{$ELSE}
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Sem.Lock;
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{$ENDIF}
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end;
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procedure TfrxMutex.Unlock;
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begin
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{$IFNDEF Linux}
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ReleaseMutex(crit);
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{$ELSE}
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Sem.Unlock();
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{$ENDIF}
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end;
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end.
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