1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericopenlibs/openenvcore/libdl/src/libdl.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,90 @@
     1.4 +// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// Name        : libdl.cpp
    1.18 +// Part of     : libdl library
    1.19 +// Dll entry point functions
    1.20 +//
    1.21 +
    1.22 +
    1.23 +
    1.24 +
    1.25 +// INCLUDE FILES
    1.26 +#include <dlfcn.h>  //RTLD_DEFAULT
    1.27 +#include "libdl_r.h"  //_r functions 
    1.28 +
    1.29 +
    1.30 +
    1.31 +// EXTERNAL FUNCTION PROTOTYPES
    1.32 +
    1.33 +
    1.34 +//-----------------------------------------------------------------------------
    1.35 +//Function Name : void* dlopen(const char* filename, int flag)
    1.36 +//Description   : It takes the filename of the dynamic library to be loaded. 
    1.37 +//				  The dynamic library is loaded and a "handle" to this executable
    1.38 +//				  is returned to the caller.
    1.39 +//Return Value  : valid handle if succesful otherwise NULL and an error message
    1.40 +//				  is logged. The user can retrieve the error message through a 
    1.41 +//				  call to dlerror()
    1.42 +//-----------------------------------------------------------------------------
    1.43 +EXPORT_C void* dlopen(const char* filename, int flag)
    1.44 +	{
    1.45 +	if ( !filename )
    1.46 +		{
    1.47 +		return RTLD_DEFAULT;
    1.48 +		}
    1.49 +	return __dlopen_r(filename, flag);;
    1.50 +	}
    1.51 +
    1.52 +//-----------------------------------------------------------------------------
    1.53 +//Function Name : void* dlsym(void* handle, const char* symbol)
    1.54 +//Description   : It takes the handle (as returned by dlopen or RTLD_DEFAULT/
    1.55 +//				  RTLD_NEXT/RTLD_SELF) and the NULL terminated string for symbol
    1.56 +//				  name or the ordinal number. It locates the symbol corresponding
    1.57 +//				  to this name or ordinal number.
    1.58 +//Return Value  : Symbols address address if the symbol name or ordinal number 
    1.59 +//				  is found, otherwise NULL is returned and an error message is
    1.60 +//				  logged. The user can retrieve the error message through a call
    1.61 +//				  to dlerror().
    1.62 +//-----------------------------------------------------------------------------
    1.63 +EXPORT_C void* dlsym(void* handle, const char* symbol)
    1.64 +	{
    1.65 +	return __dlsym_r(handle, symbol);
    1.66 +	}	
    1.67 +
    1.68 +//-----------------------------------------------------------------------------
    1.69 +//Function Name : char* dlerror(void)
    1.70 +//Description   : Gives the last error that occurred due to any of the dl 
    1.71 +//				  operations.
    1.72 +//Return Value  : a NULL-terminated character string that gives the last error 
    1.73 +//				  that occurred due to any of the dl operations. If no errors 
    1.74 +//				  have occurred since the last call to dlerror(), dlerror() 
    1.75 +//				  returns NULL.
    1.76 +//-----------------------------------------------------------------------------
    1.77 +EXPORT_C char* dlerror(void)
    1.78 +	{
    1.79 +	return (char*) __dlerror_r();
    1.80 +	}
    1.81 +
    1.82 +
    1.83 +//-----------------------------------------------------------------------------
    1.84 +//Function Name : int dlclose(void* handle)
    1.85 +//Description   : Decrements the reference count corresponding to the handle.
    1.86 +//				  If refrence count becomes zero library is unloaded.
    1.87 +//Return Value  : 0 on success otherwise non zero value
    1.88 +//-----------------------------------------------------------------------------
    1.89 +EXPORT_C int dlclose(void* handle)
    1.90 +	{
    1.91 +	return __dlclose_r(handle);
    1.92 +	}
    1.93 +