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/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
*
* License: GPL (version 3 or any later version).
* See LICENSE for details.
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/* cleanup.c - cleans up ldbm backend */
#include "back-ldbm.h"
#include "dblayer.h"
int
ldbm_back_cleanup(Slapi_PBlock *pb)
{
struct ldbminfo *li;
Slapi_Backend *be;
slapi_log_err(SLAPI_LOG_TRACE, "ldbm_back_cleanup", "ldbm backend cleaning up\n");
slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &li);
slapi_pblock_get(pb, SLAPI_BACKEND, &be);
if (be->be_state != BE_STATE_STOPPED &&
be->be_state != BE_STATE_DELETED) {
slapi_log_err(SLAPI_LOG_TRACE,
"ldbm_back_cleanup", "Warning - backend is in a wrong state - %d\n",
be->be_state);
return 0;
}
PR_Lock(be->be_state_lock);
if (be->be_state != BE_STATE_STOPPED &&
be->be_state != BE_STATE_DELETED) {
slapi_log_err(SLAPI_LOG_TRACE,
"ldbm_back_cleanup", "Warning - backend is in a wrong state - %d\n",
be->be_state);
PR_Unlock(be->be_state_lock);
return 0;
}
/*
* We check if li is NULL. Because of an issue in how we create backends
* we share the li and plugin info between many unique backends. This causes
* be_cleanall to try to trigger this multiple times. But we don't need to!
* the backend cleanup is sufficent to be called once for each instance of
* ldbminfo. This protects us from heap use after frees while still cleaning
* up. Ultimately, it's a flaw in how ldbm can have many backends, but for
* "one" plugin.
*/
if (li != NULL) {
/* call the backend specific cleanup function */
dblayer_private *priv = (dblayer_private *)li->li_dblayer_private;
if (priv) {
priv->dblayer_cleanup_fn(li);
}
ldbm_config_destroy(li);
slapi_pblock_set(pb, SLAPI_PLUGIN_PRIVATE, NULL);
}
be->be_state = BE_STATE_CLEANED;
PR_Unlock(be->be_state_lock);
return 0;
}
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