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/*
* $Id$
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2012 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 "libutil.h"
#include "wi.h"
#include "sqlver.h"
#include <plugin.h>
#ifndef WIN32
#include <dirent.h>
#endif
#include "msdtc.h"
msdtc_version_t * msdtc_plugin = 0;
#define PLUGIN_DIR "plugin"
#ifndef HAVE_DIRECT_H
#define DIRNAME(de) de->d_name
#define CHECKFH(df) (df != NULL)
#else
#define DIRNAME(de) de->name
#define CHECKFH(df) (df != -1)
#define S_IFLNK S_IFREG
#endif
unit_version_t plain_plugin_version = {
PLAIN_PLUGIN_TYPE, /*!< Title of unit, filled by unit */
DBMS_SRV_GEN_MAJOR DBMS_SRV_GEN_MINOR,/*!< Version number, filled by unit */
"OpenLink Software", /*!< Plugin's developer, filled by unit */
NULL, /*!< Any additional info, filled by unit */
NULL, /*!< Error message, filled by unit loader */
NULL, /*!< Name of file with unit's code, filled by unit loader */
NULL, /*!< Pointer to connection function, cannot be NULL */
NULL, /*!< Pointer to disconnection function, or NULL */
NULL, /*!< Pointer to activation function, or NULL */
NULL, /*!< Pointer to deactivation function, or NULL */
NULL /*!< Platform-specific data for run-time linking tricks */
};
unit_version_t msdtc_plugin_version = {
MSDTC_PLUGIN_TYPE, /*!< Title of unit, filled by unit */
DBMS_SRV_GEN_MAJOR DBMS_SRV_GEN_MINOR,/*!< Version number, filled by unit */
"OpenLink Software", /*!< Plugin's developer, filled by unit */
NULL, /*!< Any additional info, filled by unit */
NULL, /*!< Error message, filled by unit loader */
NULL, /*!< Name of file with unit's code, filled by unit loader */
NULL, /*!< Pointer to connection function, cannot be NULL */
NULL, /*!< Pointer to disconnection function, or NULL */
NULL, /*!< Pointer to activation function, or NULL */
NULL, /*!< Pointer to deactivation function, or NULL */
NULL /*!< Platform-specific data for run-time linking tricks */
};
/* removes .so if file in form blabla.so or blabla.so.x*/
caddr_t make_plugin_name (const char * fullname)
{
if (fullname)
{
const char * point = strrchr (fullname, '.');
/* check .so\0 */
if (point && point[1] == 's' && point[2] == 'o' && !point[3])
return box_dv_short_nchars (fullname, point - fullname);
if (point && point[1] == 's' && point[2] == 'o' && '.' == point[3])
return box_dv_short_nchars (fullname, point - fullname);
/* .dll */
if (point && !stricmp (point, "dll"))
return box_dv_short_nchars (fullname, point - fullname);
}
return box_string (fullname);
}
unit_version_t *plain_plugin_load (const char *plugin_dll_name, const char *plugin_load_path)
{
char *filename, *funname;
char *plugin_name = make_plugin_name (plugin_dll_name);
filename = (char *) dk_alloc (strlen (plugin_load_path) + 1 + strlen (plugin_name) + 1);
snprintf (filename, strlen (plugin_load_path) + 1 + strlen (plugin_name) + 1, "%s/%s", plugin_load_path, plugin_name);
funname = (char *) dk_alloc (strlen (plugin_name) + 6 + 1 /* == strlen ("_check") */ + 1);
snprintf (funname, strlen (plugin_name) + 6 + 1, "%s_check", plugin_name);
dk_free_box (plugin_name);
return uv_load_and_check_plugin (filename, funname, &plain_plugin_version, NULL);
}
unit_version_t *msdtc_plugin_load (const char *plugin_dll_name, const char *plugin_load_path)
{
char *filename, *funname;
char *plugin_name = make_plugin_name (plugin_dll_name);
unit_version_t * res;
filename = (char *) dk_alloc (strlen (plugin_load_path) + 1 + strlen (plugin_name) + 1);
snprintf (filename, strlen (plugin_load_path) + 1 + strlen (plugin_name) + 1, "%s/%s", plugin_load_path, plugin_name);
funname = (char *) dk_alloc (strlen (plugin_name) + 6 /* == strlen ("_check") */ + 1);
snprintf (funname, strlen (plugin_name) + 6 + 1, "%s_check", plugin_name);
dk_free_box (plugin_name);
res = uv_load_and_check_plugin (filename, funname, (unit_version_t*) &msdtc_plugin_version, NULL);
if (!res->uv_load_error)
msdtc_plugin = (msdtc_version_t*) res;
if (!msdtc_plugin)
{
log_warning ("2PC: MS DTC is not available, so plugin could not be loaded.");
}
return res;
}
unit_version_t *attach_plugin_load (const char *plugin_dll_name, const char *plugin_load_path)
{
char *filename;
char *plugin_name = make_plugin_name (plugin_dll_name);
filename = (char *) dk_alloc (strlen (plugin_load_path) + 1 + strlen (plugin_name) + 1);
snprintf (filename, strlen (plugin_load_path) + 1 + strlen (plugin_name) + 1, "%s/%s", plugin_load_path, plugin_name);
dk_free_box (plugin_name);
return uv_load_and_check_plugin (filename, NULL, NULL, NULL);
}
/*! \brief Type of function registered via plugin_add_type and used by
plugin_load to invoke uv_connect of a plugin with proper appdata */
void plain_plugin_connect (const unit_version_t *plugin)
{
UV_CALL (plugin, uv_connect, NULL);
}
/* the attach plugin is meant to attach shared libraries to the
executable without further actions or checks. This helps to
solve the situation where a (hosting) plugin depends on other
local shared libraries that wouldn't load if Virtuoso is running
on unix as root */
void attach_plugin_connect (const unit_version_t *plugin)
{
}
void plugin_loader_init()
{
if (-1 == plugin_add_type(PLAIN_PLUGIN_TYPE, plain_plugin_load, plain_plugin_connect))
{
log_error ("Could not add plain plugin type");
return;
}
if (-1 == plugin_add_type(MSDTC_PLUGIN_TYPE, msdtc_plugin_load, plain_plugin_connect))
{
log_error ("Could not add msdtc plugin type");
return;
}
if (-1 == plugin_add_type(ATTACH_PLUGIN_TYPE, attach_plugin_load, attach_plugin_connect))
{
log_error ("Could not add attach plugin type");
return;
}
}
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