/**
* Remove cached entry for key, optionally disposing of the whole structure.
* Cached entry is flushed if it was dirty and flush is set.
*
* @return the reusable cached entry if dispose was FALSE and the key was
* indeed cached, NULL otherwise.
*/
static struct cached *
remove_entry(dbmw_t *dw, gconstpointer key, gboolean dispose, gboolean flush)
{
struct cached *old;
gpointer old_key;
gboolean found;
found = map_lookup_extended(dw->values, key, &old_key, (gpointer) &old);
if (!found)
return NULL;
g_assert(old != NULL);
if (old->dirty && flush)
write_back(dw, key, old);
hash_list_remove(dw->keys, key);
map_remove(dw->values, key);
wfree(old_key, dbmw_keylen(dw, old_key));
if (!dispose)
return old;
/*
* Dispose of the cache structure.
*/
free_value(dw, old, TRUE);
WFREE(old);
return NULL;
}
/**
* Remove cached entry for key, optionally disposing of the whole structure.
* Cached entry is flushed if it was dirty and flush is set.
*
* @return the reusable cached entry if dispose was FALSE and the key was
* indeed cached, NULL otherwise.
*/
static struct cached *
remove_entry(dbmw_t *dw, const void *key, bool dispose, bool flush)
{
struct cached *old;
void *old_key;
bool found;
found = map_lookup_extended(dw->values, key, &old_key, (void *) &old);
if (!found)
return NULL;
g_assert(old != NULL);
if (dbg_ds_debugging(dw->dbg, 3, DBG_DSF_CACHING)) {
dbg_ds_log(dw->dbg, dw, "%s: %s key=%s (%s)",
G_STRFUNC, old->dirty ? "dirty" : "clean",
dbg_ds_keystr(dw->dbg, key, (size_t) -1),
flush ? "flushing" : " discarding");
}
if (old->dirty && flush)
write_back(dw, key, old);
hash_list_remove(dw->keys, key);
map_remove(dw->values, key);
wfree(old_key, dbmw_keylen(dw, old_key));
if (!dispose)
return old;
/*
* Dispose of the cache structure.
*/
free_value(dw, old, TRUE);
WFREE(old);
return NULL;
}
