openjpeg/applications/jpip/libopenjpip/target_manager.h

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/*
* $Id: target_manager.h 44 2011-02-15 12:32:29Z kaori $
*
* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2011, Professor Benoit Macq
* Copyright (c) 2010-2011, Kaori Hagihara
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
*/
#ifndef TARGET_MANAGER_H_
# define TARGET_MANAGER_H_
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#include "bool.h"
#include "index_manager.h"
//! maximum length of target identifier
#define MAX_LENOFTID 30
//! target parameters
typedef struct target_param{
char tid[MAX_LENOFTID]; //!< taregt identifier
char *filename; //!< file name
int fd; //!< file descriptor
int csn; //!< codestream number
index_param_t *codeidx; //!< index information of codestream
int num_of_use; //!< numbers of sessions refering to this target
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bool jppstream; //!< if this target can return JPP-stream
bool jptstream; //!< if this target can return JPP-stream
struct target_param *next; //!< pointer to the next target
} target_param_t;
//! Target list parameters
typedef struct targetlist_param{
target_param_t *first; //!< first target pointer of the list
target_param_t *last; //!< last target pointer of the list
} targetlist_param_t;
/**
* generate a target list
*
* @return pointer to the generated target list
*/
targetlist_param_t * gene_targetlist();
/**
* generate a target
*
* @param[in] targetlist target list to insert the generated target
* @param[in] targetpath file path or URL of the target
* @return pointer to the generated target
*/
target_param_t * gene_target( targetlist_param_t *targetlist, char *targetpath);
/**
* refer a target, used to make a new cache model
*
* @param[in] reftarget reference target pointer
* @param[out] ptr address of feeding target pointer
*/
void refer_target( target_param_t *reftarget, target_param_t **ptr);
/**
* refer a target, used to make a new cache model
*
* @param[in] target reference pointer to the target
*/
void unrefer_target( target_param_t *target);
/**
* delete a target
*
* @param[in,out] target address of the deleting target pointer
*/
void delete_target( target_param_t **target);
/**
* delete a target in list
*
* @param[in,out] target address of the deleting target pointer
* @param[in] targetlist target list pointer
*/
void delete_target_in_list( target_param_t **target, targetlist_param_t *targetlist);
/**
* delete target list
*
* @param[in,out] targetlist address of the target list pointer
*/
void delete_targetlist(targetlist_param_t **targetlist);
/**
* print target parameters
*
* @param[in] target target pointer
*/
void print_target( target_param_t *target);
/**
* print all target parameters
*
* @param[in] targetlist target list pointer
*/
void print_alltarget( targetlist_param_t *targetlist);
/**
* search a target by filename
*
* @param[in] targetname target filename
* @param[in] targetlist target list pointer
* @return found target pointer
*/
target_param_t * search_target( char targetname[], targetlist_param_t *targetlist);
/**
* search a target by tid
*
* @param[in] tid target identifier
* @param[in] targetlist target list pointer
* @return found target pointer
*/
target_param_t * search_targetBytid( char tid[], targetlist_param_t *targetlist);
#endif /* !TARGET_MANAGER_H_ */