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/*
* plugin.c
*
* $Id: plugin.c,v 1.3 2009/04/09 17:53:08 source Exp $
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2006 OpenLink Software
*
* This project 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; only version 2 of the License, dated June 1991.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <string.h>
#include "plugin.h"
#define MAX_PLUGIN_TYPES 32
struct plugin_type_s
{
char *pt_name;
plugin_load_callback *pt_loader;
plugin_connect_callback *pt_connector;
};
typedef struct plugin_type_s plugin_type_t;
static plugin_type_t all_plugin_types[MAX_PLUGIN_TYPES];
int plugin_add_type(const char *plugin_type_name, plugin_load_callback *loader_for_type, plugin_connect_callback *connector)
{
int ctr;
for (ctr = 0; ctr < MAX_PLUGIN_TYPES; ctr++)
{
plugin_type_t *item = all_plugin_types+ctr;
if (NULL == item->pt_name)
{
item->pt_name = strdup (plugin_type_name);
item->pt_loader = loader_for_type;
item->pt_connector = connector;
return 0;
}
if (0 == strcmp(plugin_type_name, item->pt_name))
{
item->pt_loader = loader_for_type;
item->pt_connector = connector;
return 0;
}
}
/* Too many plugin types */
return -1;
}
int plugin_load (
const char *plugin_type, const char *plugin_dll_name, const char *plugin_load_path,
int loadctr, plugin_log_callback *info_logger, plugin_log_callback *error_logger )
{
int ctr;
for (ctr = 0; ctr < MAX_PLUGIN_TYPES; ctr++)
{
plugin_type_t *item = all_plugin_types+ctr;
if (NULL == item->pt_name)
break;
if (0 == strcmp (item->pt_name, plugin_type))
{
unit_version_t *result;
char buf[1024];
int error;
info_logger ("{ Loading plugin %d: Type `%s', file `%s' in `%s'", loadctr, plugin_type, plugin_dll_name, plugin_load_path);
result = item->pt_loader (plugin_dll_name, plugin_load_path);
error = (NULL != result->uv_load_error);
buf[0] = '\0';
if (NULL != result->uv_title)
{
strcat (buf, result->uv_title);
}
if (NULL != result->uv_version)
{
strcat (buf, " version ");
strcat (buf, result->uv_version);
}
if (NULL != result->uv_companyname)
{
strcat (buf, " from ");
strcat (buf, result->uv_companyname);
}
if (buf[0] != '\0')
info_logger (" %s", buf);
if ((NULL != result->uv_comments) && ('\0' != result->uv_comments[0]))
info_logger (" %s", result->uv_comments);
if (!error)
item->pt_connector (result);
if (error)
error_logger (" FAILED plugin %d: %s }", loadctr, result->uv_load_error);
else
info_logger (" SUCCESS plugin %d: loaded from %s }", loadctr, result->uv_filename);
return (error ? -2 : 0);
}
}
error_logger ("{ Loading plugin %d: FAILED plugin %d: Unknown type specified for plugin }", loadctr, loadctr);
return -1;
}
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