openjpeg/applications/jpip/opj_client/opj_dec_server/cache_manager.c

248 lines
6.0 KiB
C

/*
* $Id: cache_manager.c 53 2011-05-09 16:55:39Z 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cache_manager.h"
//! maximum length of channel identifier
#define MAX_LENOFCID 30
cachelist_param_t * gene_cachelist()
{
cachelist_param_t *cachelist;
cachelist = (cachelist_param_t *)malloc( sizeof(cachelist_param_t));
cachelist->first = NULL;
cachelist->last = NULL;
return cachelist;
}
void delete_cachelist(cachelist_param_t **cachelist)
{
cache_param_t *cachePtr, *cacheNext;
cachePtr = (*cachelist)->first;
while( cachePtr != NULL){
cacheNext=cachePtr->next;
delete_cache( &cachePtr);
cachePtr=cacheNext;
}
free( *cachelist);
}
cache_param_t * gene_cache( char *targetname, int csn, char *cid)
{
cache_param_t *cache;
cache = (cache_param_t *)malloc( sizeof(cache_param_t));
strcpy( cache->filename, targetname);
cache->csn = csn;
cache->cid = (char **)malloc( sizeof(char *));
*cache->cid = (char *)malloc( MAX_LENOFCID);
strcpy( *cache->cid, cid);
cache->numOfcid = 1;
#if 1
cache->metadatalist = NULL;
#else
cache->metadatalist = gene_metadatalist();
#endif
cache->ihdrbox = NULL;
cache->next = NULL;
return cache;
}
void delete_cache( cache_param_t **cache)
{
int i;
delete_metadatalist( &(*cache)->metadatalist);
if((*cache)->ihdrbox)
free((*cache)->ihdrbox);
for( i=0; i<(*cache)->numOfcid; i++)
free( (*cache)->cid[i]);
free( (*cache)->cid);
free( *cache);
}
void insert_cache_into_list( cache_param_t *cache, cachelist_param_t *cachelist)
{
if( cachelist->first)
cachelist->last->next = cache;
else
cachelist->first = cache;
cachelist->last = cache;
}
cache_param_t * search_cache( char targetname[], cachelist_param_t *cachelist)
{
cache_param_t *foundcache;
foundcache = cachelist->first;
while( foundcache != NULL){
if( strcmp( targetname, foundcache->filename) == 0)
return foundcache;
foundcache = foundcache->next;
}
return NULL;
}
cache_param_t * search_cacheBycsn( int csn, cachelist_param_t *cachelist)
{
cache_param_t *foundcache;
foundcache = cachelist->first;
while( foundcache != NULL){
if( csn == foundcache->csn)
return foundcache;
foundcache = foundcache->next;
}
return NULL;
}
cache_param_t * search_cacheBycid( char cid[], cachelist_param_t *cachelist)
{
cache_param_t *foundcache;
int i;
foundcache = cachelist->first;
while( foundcache != NULL){
for( i=0; i<foundcache->numOfcid; i++)
if( strcmp( cid, foundcache->cid[i]) == 0)
return foundcache;
foundcache = foundcache->next;
}
return NULL;
}
void add_cachecid( char *cid, cache_param_t *cache)
{
char **tmp;
int i;
tmp = cache->cid;
cache->cid = (char **)malloc( (cache->numOfcid+1)*sizeof(char *));
for( i=0; i<cache->numOfcid; i++){
cache->cid[i] = (char *)malloc( MAX_LENOFCID);
strcpy( cache->cid[i], tmp[i]);
free( tmp[i]);
}
free( tmp);
cache->cid[ cache->numOfcid] = (char *)malloc( MAX_LENOFCID);
strcpy( cache->cid[ cache->numOfcid], cid);
cache->numOfcid ++;
}
void remove_cidInCache( char *cid, cache_param_t *cache);
void remove_cachecid( char *cid, cachelist_param_t *cachelist)
{
cache_param_t *cache;
cache = search_cacheBycid( cid, cachelist);
remove_cidInCache( cid, cache);
}
void remove_cidInCache( char *cid, cache_param_t *cache)
{
int idx = -1;
char **tmp;
int i, j;
for( i=0; i<cache->numOfcid; i++)
if( strcmp( cid, cache->cid[i]) == 0){
idx = i;
break;
}
if( idx == -1){
fprintf( stderr, "cid: %s not found\n", cid);
return;
}
tmp = cache->cid;
cache->cid = (char **)malloc( (cache->numOfcid-1)*sizeof(char *));
for( i=0, j=0; i<cache->numOfcid; i++){
if( i != idx){
cache->cid[j] = (char *)malloc( MAX_LENOFCID);
strcpy( cache->cid[j], tmp[i]);
j++;
}
free( tmp[i]);
}
free( tmp);
cache->numOfcid --;
}
void print_cache( cache_param_t *cache)
{
int i;
fprintf( stdout,"cache\n");
fprintf( stdout,"\t filename: %s\n", cache->filename);
fprintf( stdout,"\t csn: %d\n", cache->csn);
fprintf( stdout,"\t cid:");
for( i=0; i<cache->numOfcid; i++)
fprintf( stdout," %s", cache->cid[i]);
fprintf( stdout,"\n");
}
void print_allcache( cachelist_param_t *cachelist)
{
cache_param_t *ptr;
fprintf( stdout,"cache list\n");
ptr = cachelist->first;
while( ptr != NULL){
print_cache( ptr);
ptr=ptr->next;
}
}