blocxx

shlSharedLibraryLoader.cpp

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00001 /*******************************************************************************
00002 * Copyright (C) 2005, Vintela, Inc. All rights reserved.
00003 * Copyright (C) 2006, Novell, Inc. All rights reserved.
00004 * 
00005 * Redistribution and use in source and binary forms, with or without
00006 * modification, are permitted provided that the following conditions are met:
00007 * 
00008 *     * Redistributions of source code must retain the above copyright notice,
00009 *       this list of conditions and the following disclaimer.
00010 *     * Redistributions in binary form must reproduce the above copyright
00011 *       notice, this list of conditions and the following disclaimer in the
00012 *       documentation and/or other materials provided with the distribution.
00013 *     * Neither the name of 
00014 *       Vintela, Inc., 
00015 *       nor Novell, Inc., 
00016 *       nor the names of its contributors or employees may be used to 
00017 *       endorse or promote products derived from this software without 
00018 *       specific prior written permission.
00019 * 
00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00021 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00024 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00025 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00026 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00029 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00030 * POSSIBILITY OF SUCH DAMAGE.
00031 *******************************************************************************/
00032 
00033 
00038 #include "blocxx/BLOCXX_config.h"
00039 #if defined(BLOCXX_USE_SHL)
00040 #include "blocxx/shlSharedLibraryLoader.hpp"
00041 #include "blocxx/shlSharedLibrary.hpp"
00042 #include "blocxx/Format.hpp"
00043 
00044 #include <dl.h>
00045 #include <errno.h>
00046 
00047 namespace BLOCXX_NAMESPACE
00048 {
00049 
00050 namespace
00051 {
00052    String COMPONENT_NAME("blocxx.shlSharedLibraryLoader");
00053 }
00054 
00056 SharedLibraryRef
00057 shlSharedLibraryLoader::loadSharedLibrary(const String& filename) const
00058 {
00059    shl_t libhandle = ::shl_load(filename.c_str(), BIND_IMMEDIATE, 0L);
00060    if (libhandle)
00061    {
00062       try
00063       {
00064          return SharedLibraryRef( new shlSharedLibrary(libhandle,
00065             filename));
00066       }
00067       catch (...)
00068       {
00069          ::shl_unload(libhandle);
00070          throw;
00071       }
00072    }
00073    else
00074    {
00075       Logger logger(COMPONENT_NAME);
00076       BLOCXX_LOG_ERROR(logger, Format("shlSharedLibraryLoader::loadSharedLibrary "
00077          "shl_load returned NULL.  Error is: %1(%2)", errno, strerror(errno)));
00078       return SharedLibraryRef( 0 );
00079    }
00080 }
00082 SharedLibraryLoaderRef
00083 SharedLibraryLoader::createSharedLibraryLoader()
00084 {
00085    return SharedLibraryLoaderRef(new shlSharedLibraryLoader);
00086 }
00088 shlSharedLibraryLoader::~shlSharedLibraryLoader()
00089 {
00090 }
00091 
00092 } // end namespace BLOCXX_NAMESPACE
00093 
00094 #endif // #if defined(BLOCXX_USE_SHL)