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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#ifndef AXIS2_CALLBACK_RECV_H
#define AXIS2_CALLBACK_RECV_H

/**
 * @defgroup axis2_callback_recv callback message receiver. This can be considered as a
 * message receiver implementation for application client side which is similar to 
 * server side message receivers like raw_xml_in_out_msg_recv. Messages received by
 * listener manager will finally end up here.
 *
 * @ingroup axis2_client_api
 * callback message receiver, that is used as the message receiver in the
 * operation in case of asynchronous invocation for receiving the result.
 */

/**
  * @file axis2_axis2_callback_recv.h
  */

#include <axis2_defines.h>
#include <axutil_env.h>
#include <axis2_msg_recv.h>
#include <axis2_callback.h>

#ifdef __cplusplus
extern "C"
{
#endif

    /** Type name for struct axis2_callback_recv */
    typedef struct axis2_callback_recv axis2_callback_recv_t;

    /**
     * Gets the base struct which is of type message receiver.
     * @param callback_recv pointer to callback receiver struct
     * @param env pointer to environment struct
     * @return pointer to base message receiver struct
     */
    AXIS2_EXTERN axis2_msg_recv_t *AXIS2_CALL
    axis2_callback_recv_get_base(
        axis2_callback_recv_t * callback_recv,
        const axutil_env_t * env);

    /**
     * Frees the callback receiver struct.
     * @param callback_recv pointer to callback receiver struct
     * @param env pointer to environment struct
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN void AXIS2_CALL
    axis2_callback_recv_free(
        axis2_callback_recv_t * callback_recv,
        const axutil_env_t * env);

    /**
     * Adds a callback corresponding to given WSA message ID to message
     * receiver.
     * @param callback_recv pointer to callback receiver struct
     * @param env pointer to environment struct
     * @param msg_id message ID indicating which message the callback is
     * supposed to deal with
     * @param callback callback to be added. callback receiver assumes 
     * ownership of the callback
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_callback_recv_add_callback(
        struct axis2_callback_recv *callback_recv,
        const axutil_env_t * env,
        const axis2_char_t * msg_id,
        axis2_callback_t * callback);

    /**
     * Creates a callback receiver struct.
     * @param env pointer to environment struct
     * @return a pointer to newly created callback receiver struct,
     *         or NULL on error with error code set in environment's error
     */
    AXIS2_EXTERN axis2_callback_recv_t *AXIS2_CALL
    axis2_callback_recv_create(
        const axutil_env_t * env);

    /** Gets the base message receiver. */
#define AXIS2_CALLBACK_RECV_GET_BASE(callback_recv, env) \
    axis2_callback_recv_get_base(callback_recv, env)

    /** Frees callback message receiver. */
#define AXIS2_CALLBACK_RECV_FREE(callback_recv, env) \
    axis2_callback_recv_free(callback_recv, env)

    /** Adds callback to callback message receiver. */
#define AXIS2_CALLBACK_RECV_ADD_CALLBACK(callback_recv, env, msg_id, callback)\
    axis2_callback_recv_add_callback(callback_recv, env, msg_id, callback)

    /** @} */
#ifdef __cplusplus
}
#endif

#endif                          /* AXIS2_CALLBACK_RECV_H */