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118 lines
4.3 KiB
Plaintext
Executable File
118 lines
4.3 KiB
Plaintext
Executable File
-- Created on: 1994-08-30
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-- Created by: J.P. TIRAULT
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-- Copyright (c) 1994-1999 Matra Datavision
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-- Copyright (c) 1999-2012 OPEN CASCADE SAS
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--
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-- The content of this file is subject to the Open CASCADE Technology Public
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-- License Version 6.5 (the "License"). You may not use the content of this file
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-- except in compliance with the License. Please obtain a copy of the License
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-- at http://www.opencascade.org and read it completely before using this file.
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--
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-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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--
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-- The Original Code and all software distributed under the License is
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-- distributed on an "AS IS" basis, without warranty of any kind, and the
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-- Initial Developer hereby disclaims all such warranties, including without
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-- limitation, any warranties of merchantability, fitness for a particular
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-- purpose or non-infringement. Please see the License for the specific terms
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-- and conditions governing the rights and limitations under the License.
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-- SharedLibrary: OSD_SharedLibrary.cdl
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class SharedLibrary from OSD
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---Purpose: Interface to dynamic library loader.
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uses LoadMode,Function
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is
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Create returns SharedLibrary;
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---Purpose: Creates a SharedLibrary object with name NULL.
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---Level: Public
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Create (aFilename : CString) returns SharedLibrary;
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---Purpose: Creates a SharedLibrary object with name aFilename.
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---Level: Public
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SetName (me : out ; aName : CString)
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---Purpose: Sets a name associated to the shared object.
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---Level: Public
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is static;
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Name (me)
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---Purpose: Returns the name associated to the shared object.
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---Level: Public
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returns CString
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is static;
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DlOpen (me : out ; Mode : LoadMode)
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---Purpose: The DlOpen method provides an interface to the
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-- dynamic library loader to allow shared libraries
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-- to be loaded and called at runtime. The DlOpen
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-- function attempts to load Filename, in the address
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-- space of the process, resolving symbols as appropriate.
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-- Any libraries that Filename depends upon are also loaded.
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-- If MODE is RTLD_LAZY, then the runtime loader
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-- does symbol resolution only as needed.
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-- Typically, this means that the first call to a function
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-- in the newly loaded library will cause the resolution of
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-- the address of that function to occur.
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-- If Mode is RTLD_NOW, then the runtime loader must do all
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-- symbol binding during the DlOpen call.
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-- The DlOpen method returns a handle that is used by DlSym
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-- or DlClose.
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-- If there is an error, Standard_False is returned,
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-- Standard_True otherwise.
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-- If a NULL Filename is specified, DlOpen returns a handle
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-- for the main executable, which allows access to dynamic
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-- symbols in the running program.
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---Level: Public
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returns Boolean
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is static;
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DlSymb (me; Name : CString)
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---Purpose: The dlsym function returns the address of the
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-- symbol name found in the shared library.
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-- If the symbol is not found, a NULL pointer is
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-- returned.
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---Level: Public
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returns Function
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is static;
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DlClose (me)
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---Purpose: Deallocates the address space for the library
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-- corresponding to the shared object.
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-- If any user function continues to call a symbol
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-- resolved in the address space of a library
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-- that has been since been deallocated by DlClose,
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-- the results are undefined.
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---Level: Public
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is static;
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DlError (me)
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---Purpose: The dlerror function returns a string describing
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-- the last error that occurred from
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-- a call to DlOpen, DlClose or DlSym.
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---Level: Public
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returns CString
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is static;
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Destroy (me : in out)
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---Level: Public
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---Purpose: Frees memory allocated.
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---C++: alias ~
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is static;
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fields
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myHandle : Address;
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myName : PCharacter;
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end SharedLibrary from OSD;
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