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/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

#ifndef APR_DSO_DOT_H
#define APR_DSO_DOT_H

#include "apr_general.h"
#include "apr_errno.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct ap_dso_handle_t        ap_dso_handle_t;
typedef void *                        ap_dso_handle_sym_t;

/* ***APRDOC********************************************************
 * ap_status_t ap_dso_init(void)
 *    Initialize the underlying DSO library.
 */
ap_status_t ap_dso_init(void);

/* ***APRDOC********************************************************
 * ap_status_t ap_dso_load(ap_dso_handle_t **res_handle, const char *path,
 *                         ap_context_t *ctx)
 *    Load a DSO library.
 * arg 1) Location to store new handle for the DSO.
 * arg 2) Path to the DSO library
 * arg 3) Context to use. 
 */
ap_status_t ap_dso_load(ap_dso_handle_t **res_handle, const char *path, 
                        ap_pool_t *ctx);

/* ***APRDOC********************************************************
 * ap_status_t ap_dso_unload(ap_dso_handle_t *handle)
 *    Close a DSO library.
 * arg 1) handle to close.
 */
ap_status_t ap_dso_unload(ap_dso_handle_t *handle);

/* ***APRDOC********************************************************
 * ap_status_t ap_dso_sym(ap_dso_handle_sym_t *ressym, ap_dso_handle_t *handle
 *                        const char *symname)
 *    Load a symbol from a DSO handle.
 * arg 1) Location to store the loaded symbol
 * arg 2) handle to load from.
 * arg 3) Name of the symbol to load.
 */
ap_status_t ap_dso_sym(ap_dso_handle_sym_t *ressym, ap_dso_handle_t *handle, 
                       const char *symname);
#ifdef __cplusplus
}
#endif

#endif