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ff8178ef85
Mostly duplicated comments were removed and missing ones were moved into dedicated class CDL files. Some more duplicated comments were removed from CDL files. Correction of merge
115 lines
4.1 KiB
Plaintext
115 lines
4.1 KiB
Plaintext
-- 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) 1999-2014 OPEN CASCADE SAS
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--
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-- This file is part of Open CASCADE Technology software library.
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--
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-- This library is free software; you can redistribute it and/or modify it under
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-- the terms of the GNU Lesser General Public License version 2.1 as published
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-- by the Free Software Foundation, with special exception defined in the file
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-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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-- distribution for complete text of the license and disclaimer of any warranty.
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--
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-- Alternatively, this file may be used under the terms of Open CASCADE
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-- commercial license or contractual agreement.
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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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-- Provides tools to load a shared library
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-- and retrieve the address of an entry point.
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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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