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/*
* Copyright (c) 2007 Regents of the SIGNET lab, University of Padova.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University of Padova (SIGNET lab) nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* This file is used when ns is built into two separate components:
* 1) a shared library which includes all the code of the simulator
* 2) a tiny executable (built from this file) which has the only purpose of
* loading the library described above
* This setup is needed to support the loading of dynamic libraries on
* windows systems (e.g. cygwin), in order to overcome some well-known limitations
* of the DLL format (in particular, the fact that an executable cannot export
* its simbols to the libraries that it loads).
* For most other operating systems, common/main-monolithic.cc is used instead
* of this file.
* The selection of the main file used for the build is made in the Makefile,
* depending on the operating system (as detected by ./configure)
*/
#include<stdio.h>
#include <dlfcn.h>
int
main(int argc, char** argv)
{
void *handle = dlopen(NSLIBNAME, RTLD_LAZY);
if(!handle)
{
fprintf(stderr,"Error: Cannot open shared library: %s\n", dlerror());
return 1;
}
typedef int (*nslibmain_t)(int,char**);
dlerror();
nslibmain_t nslibmain = (nslibmain_t)dlsym(handle, "nslibmain");
const char* dlsym_error=dlerror();
if(dlsym_error)
{
fprintf(stderr,"Cannot load symbol libmain: %s\n", dlsym_error);
dlclose(handle);
return 1;
}
nslibmain(argc,argv);
dlclose(handle);
return 0; /* Needed only to prevent compiler warning. */
}
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