/**
 * dso.c
 *
 * Copyright (C) 2005 - 2008 Bojan Smojver, Rexursive
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 2.1 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include "private.h"

/* DSO utility functions */
apr_status_t rxv_spin_dso_load(rxv_spin_ctx_t *ctx,const char *path,
                               apr_dso_handle_t **handle){
  if(!(ctx && ctx->priv && path))
    return APR_EGENERAL;

  rxv_spin_lock(ctx->priv);

  if(!(*handle=apr_hash_get(ctx->priv->dso,path,APR_HASH_KEY_STRING))){
    apr_status_t rv;
    apr_pool_t *pool=ctx->priv->pool;

    /* no luck, load new one */
    if((rv=apr_dso_load(handle,path,pool))!=APR_SUCCESS && rv!=APR_EINIT){
      rxv_spin_unlock(ctx->priv);
      return rv;
    }

    apr_hash_set(ctx->priv->dso,
                 apr_pstrdup(pool,path),APR_HASH_KEY_STRING,*handle);
  }

  rxv_spin_unlock(ctx->priv);

  return APR_SUCCESS;
}