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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 OXS_BUFFER_H
#define OXS_BUFFER_H
/**
* @file oxs_buffer.h
* @brief
*/
#include <axis2_defines.h>
#include <axis2_env.h>
#include <axis2_util.h>
#ifdef __cplusplus
extern "C"
{
#endif
/** @defgroup
* @ingroup
* @{
*/
#define OXS_BUFFER_INITIAL_SIZE 1024
/**
* Allocate mode for the buffer
* oxs_alloc_mode_exact : Minimizes the allocated memory size
* oxs_alloc_mode_double : Minimizes number of Malloc calls
*/
typedef enum {
oxs_alloc_mode_exact = 0,
oxs_alloc_mode_double
} oxs_AllocMode;
/** Type name for struct oxs_buffer_ops */
typedef struct oxs_buffer_ops oxs_buffer_ops_t;
/** Type name for struct oxs_buffer */
typedef struct oxs_buffer oxs_buffer_t;
struct oxs_buffer_ops
{
/**
*Free function of the buffer
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
free)(
oxs_buffer_t *buffer,
const axis2_env_t *env
);
/**
*Removes the first (size) charcters from the buffer
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@size number of characters to be removed
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
remove_head)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
int size
);
/**
*Removes the last (size) charcters from the buffer
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@size number of characters to be removed
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
remove_tail)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
int size
);
/**
*populates the buffer using the @data set the @size as the useful length
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@data the data for the buffer
*@size the effective length of data
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
populate)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
unsigned char *data,
int size
);
/**
*Append data (to the end)
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@data the data for the buffer
*@size the effective length of data
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
append)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
unsigned char *data,
int size
);
/**
*Prepends data (to the front of the buffer)
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@data the data for the buffer
*@size the effective length of data
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
prepend)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
unsigned char *data,
int size
);
/**
*Reads a file specified by @filename
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@filename The name of the file
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
read_file)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
const axis2_char_t *filename
);
/**
*Sets the size
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@size the value of the size
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
set_size)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
int size
);
/**
*Sets the maximum size of the buffer. Usually this will be allocated dynamically
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@size the maximum size of the buffer
*@return AXIS2_SUCCESS on success, else AXIS2_FAILURE
*/
axis2_status_t (AXIS2_CALL *
set_max_size)(
oxs_buffer_t *buffer,
const axis2_env_t *env,
int size
);
/**
*Returns data
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@return data in the buffer
*/
unsigned char* (AXIS2_CALL *
get_data)(
oxs_buffer_t *buffer,
const axis2_env_t *env
);
/**
*Returns the effective length of the buffer
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@return the effective length of the buffer as int
*/
int (AXIS2_CALL *
get_size)(
oxs_buffer_t *buffer,
const axis2_env_t *env
);
/**
*Returns the maximum size of the buffer
*@buffer pointer to the OMXMLSec buffer struct
*@env pointer to environment struct
*@return the maximum size of the buffer
*/
int (AXIS2_CALL *
get_max_size)(
oxs_buffer_t *buffer,
const axis2_env_t *env
);
};
struct oxs_buffer
{
oxs_buffer_ops_t *ops;
};
AXIS2_EXTERN oxs_buffer_t *AXIS2_CALL
oxs_buffer_create(const axis2_env_t *env);
/*Macros*/
#define OXS_BUFFER_FREE(buffer,env)\
((buffer)->ops->free(buffer,env))
#define OXS_BUFFER_REMOVE_HEAD(buffer,env, size)\
((buffer)->ops->remove_head(buffer,env, size))
#define OXS_BUFFER_REMOVE_TAIL(buffer,env, size)\
((buffer)->ops->remove_tail(buffer,env, size))
#define OXS_BUFFER_POPULATE(buffer,env, data, size)\
((buffer)->ops->populate(buffer,env, data, size))
#define OXS_BUFFER_APPEND(buffer,env, data, size)\
((buffer)->ops->append(buffer,env, data, size))
#define OXS_BUFFER_PREPEND(buffer,env, data, size)\
((buffer)->ops->prepend(buffer,env, data, size))
#define OXS_BUFFER_READ_FILE(buffer,env, file_name)\
((buffer)->ops->read_file(buffer,env, file_name))
#define OXS_BUFFER_SET_SIZE(buffer,env, size)\
((buffer)->ops->set_size(buffer,env, size))
#define OXS_BUFFER_SET_MAX_SIZE(buffer, env, size)\
((buffer)->ops->set_max_size(buffer, env, size))
#define OXS_BUFFER_GET_DATA(buffer,env)\
((buffer)->ops->get_data(buffer,env))
#define OXS_BUFFER_GET_SIZE(buffer,env)\
((buffer)->ops->get_size(buffer,env))
#define OXS_BUFFER_GET_MAX_SIZE(buffer,env)\
((buffer)->ops->get_max_size(buffer,env))
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* OXS_BUFFER_H */