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• Parallel port blocking

  - by asalamon74

  I have a legacy Java program which handles a special card printer by sending binary data to the LPT1 port (no printer driver is involved, the Java program creates the binary stream). The program was working correctly with the client's old computer. The Java program sent all the bytes to the printer and after sending the last byte the program was not blocked. It took an other minute to finish the card printing, but the user was able to continue the work with the program. After changing the client's computer (but not the printer, or the Java program), the program does not finish the task till the card is ready, it is blocked until the last second. It seems to me that LPT1 has a different behavior now than was before. Is it possible to change this in Windows? I've checked BIOS for parallel port settings: The parallel port is set to EPP+ECP (but also tried the other two options: Bidirectional, Output only). Maybe some kind of parallel port buffer is too small? How can I increase it?

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• Using Pragma in Oracle Package Body

  - by asalamon74

  I'd like to create an Oracle Package and two functions in it: A public function ( function_public ) and a private one ( function_private ). The public function calls the private one. I'd like to add the same pragma to the functions: WNDS, WNPS. Without the pragma I can create a code like this: CREATE OR REPLACE PACKAGE PRAGMA_TEST AS FUNCTION function_public(x IN VARCHAR2) RETURN VARCHAR2; END PRAGMA_TEST; CREATE OR REPLACE PACKAGE BODY PRAGMA_TEST AS FUNCTION function_private(y IN VARCHAR2) RETURN VARCHAR2 IS BEGIN -- code END; FUNCTION function_public(x IN VARCHAR2) RETURN VARCHAR2 IS BEGIN -- code -- here is a call for function_private -- code END; END PRAGMA_TEST; If I'd like to add WNDS, WNPS pragma to function_public I should also add the same pragma to function_private because function_public calls function_private. It seems to me pragma can be used only in the package declaration, and not in package body, so I have to declare function_private in the package as well: CREATE OR REPLACE PACKAGE PRAGMA_TEST AS FUNCTION function_private(y IN VARCHAR2) RETURN VARCHAR2; PRAGMA RESTRICT_REFERENCES( function_private, WNDS, WNPS); FUNCTION function_public(x IN VARCHAR2) RETURN VARCHAR2; PRAGMA RESTRICT_REFERENCES( function_public, WNDS, WNPS); END PRAGMA_TEST; CREATE OR REPLACE PACKAGE BODY PRAGMA_TEST AS FUNCTION function_private(y IN VARCHAR2) RETURN VARCHAR2 IS BEGIN -- code END; FUNCTION function_public(x IN VARCHAR2) RETURN VARCHAR2 IS BEGIN -- code -- here is a call for function_private -- code END; END PRAGMA_TEST; This solution makes my function_private public as well. Is there a solution to add pragma to a function which can be found only in the package body?

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