/*********************************************************************
 * test-dynload.c
 * test the ability to dlopen the gnc_module library and initialize
 * it via dlsym
 *********************************************************************/
/********************************************************************\
 * This program is free software; you can redistribute it and/or    *
 * modify it under the terms of the GNU General Public License as   *
 * published by the Free Software Foundation; either version 2 of   *
 * the License, or (at your option) any later version.              *
 *                                                                  *
 * This program is distributed in the hope that it will be useful,  *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of   *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    *
 * GNU General Public License for more details.                     *
 *                                                                  *
 * You should have received a copy of the GNU General Public License*
 * along with this program; if not, contact:                        *
 *                                                                  *
 * Free Software Foundation           Voice:  +1-617-542-5942       *
 * 51 Franklin Street, Fifth Floor    Fax:    +1-617-542-2652       *
 * Boston, MA  02110-1301,  USA       gnu@gnu.org                   *
 *                                                                  *
\********************************************************************/


#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <gmodule.h>
#include <unittest-support.h>

#include "gnc-module.h"

int
main(int argc, char ** argv)
{
    GModule *gmodule;
    gchar *modpath;
    const char *libdir = g_getenv("LIBDIR");

    if (libdir == NULL)
    {
        libdir = "../.libs";
    }

    g_test_message("  test-dynload.c: testing dynamic linking of libgnc-module ...");
#ifdef G_OS_WIN32
/* MinGW builds libgnc-module-0.dll */
    if (libdir == NULL)
    {
        modpath = g_module_build_path ("../.libs", "gnc-module-0");
    }
    else
    {
        modpath = g_module_build_path (libdir, "gnc-module");
    }
#elif defined(GNC_PLATFORM_OSX)
/* We build libgnc-module as a shared library for testing, and on OSX
 * that means that g_module_build_path (), which uses ".so", doesn't
 * build the right path name.
 */
    if (libdir == NULL)
    {
        modpath = g_build_filename ("..", ".libs", "libgnc-module.dylib", NULL);
    }
    else
    {
        modpath = g_build_filename (libdir, "libgnc-module.dylib", NULL);
    }
#else /* Regular Unix */
    modpath = g_module_build_path (libdir, "gnc-module");
#endif
    gmodule = g_module_open(modpath, 0);

    if (gmodule)
    {
        gpointer ptr;
        if (g_module_symbol(gmodule, "gnc_module_system_init", &ptr))
        {
            void (* fn)(void) = ptr;
            fn();
            printf(" OK\n");
            exit(0);
        }
        else
        {
            printf(" failed to find gnc_module_system_init\n");
            exit(-1);
        }
    }
    else
    {
        printf(" failed to open library.\n");
        printf("%s\n", g_module_error());
        exit(-1);
    }
}
