openjpeg/src/lib/openjpip/session_manager.c

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/*
* $Id$
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, 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 <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "session_manager.h"
#include "target_manager.h"
#ifdef SERVER
#include "fcgi_stdio.h"
#define logstream FCGI_stdout
#else
#define FCGI_stdout stdout
#define FCGI_stderr stderr
#define logstream stderr
#endif /*SERVER */
sessionlist_param_t * gene_sessionlist(void)
{
sessionlist_param_t *sessionlist;
sessionlist = (sessionlist_param_t *)opj_malloc(sizeof(sessionlist_param_t));
sessionlist->first = NULL;
sessionlist->last = NULL;
return sessionlist;
}
session_param_t * gene_session(sessionlist_param_t *sessionlist)
{
session_param_t *session;
session = (session_param_t *)opj_malloc(sizeof(session_param_t));
session->channellist = gene_channellist();
session->cachemodellist = gene_cachemodellist();
session->next = NULL;
if (sessionlist->first) { /* there are one or more entries */
sessionlist->last->next = session;
} else { /* first entry */
sessionlist->first = session;
}
sessionlist->last = session;
return session;
}
OPJ_BOOL search_session_and_channel(char cid[],
sessionlist_param_t *sessionlist,
session_param_t **foundsession,
channel_param_t **foundchannel)
{
*foundsession = sessionlist->first;
while (*foundsession != NULL) {
*foundchannel = (*foundsession)->channellist->first;
while (*foundchannel != NULL) {
if (strcmp(cid, (*foundchannel)->cid) == 0) {
return OPJ_TRUE;
}
*foundchannel = (*foundchannel)->next;
}
*foundsession = (*foundsession)->next;
}
fprintf(FCGI_stdout, "Status: 503\r\n");
fprintf(FCGI_stdout, "Reason: Channel %s not found\r\n", cid);
return OPJ_FALSE;
}
void insert_cachemodel_into_session(session_param_t *session,
cachemodel_param_t *cachemodel)
{
if (!cachemodel) {
return;
}
#ifndef SERVER
fprintf(logstream, "local log: insert cachemodel into session\n");
#endif
if (session->cachemodellist->first != NULL) {
session->cachemodellist->last->next = cachemodel;
} else {
session->cachemodellist->first = cachemodel;
}
session->cachemodellist->last = cachemodel;
}
OPJ_BOOL delete_session(session_param_t **session,
sessionlist_param_t *sessionlist)
{
session_param_t *ptr;
if (*session == NULL) {
return OPJ_FALSE;
}
if (*session == sessionlist->first) {
sessionlist->first = (*session)->next;
} else {
ptr = sessionlist->first;
while (ptr->next != *session) {
ptr = ptr->next;
}
ptr->next = (*session)->next;
if (*session == sessionlist->last) {
sessionlist->last = ptr;
}
}
delete_channellist(&((*session)->channellist));
delete_cachemodellist(&((*session)->cachemodellist));
#ifndef SERVER
fprintf(logstream, "local log: session: %p deleted!\n", (void *)(*session));
#endif
opj_free(*session);
return OPJ_TRUE;
}
void delete_sessionlist(sessionlist_param_t **sessionlist)
{
session_param_t *sessionPtr, *sessionNext;
sessionPtr = (*sessionlist)->first;
while (sessionPtr != NULL) {
sessionNext = sessionPtr->next;
delete_channellist(&(sessionPtr->channellist));
delete_cachemodellist(&(sessionPtr->cachemodellist));
#ifndef SERVER
fprintf(logstream, "local log: session: %p deleted!\n", (void *)sessionPtr);
#endif
opj_free(sessionPtr);
sessionPtr = sessionNext;
}
(*sessionlist)->first = NULL;
(*sessionlist)->last = NULL;
opj_free(*sessionlist);
}
void print_allsession(sessionlist_param_t *sessionlist)
{
session_param_t *ptr;
cachemodel_param_t *cachemodel;
int i = 0;
fprintf(logstream, "SESSIONS info:\n");
ptr = sessionlist->first;
while (ptr != NULL) {
fprintf(logstream, "session No.%d\n", i++);
print_allchannel(ptr->channellist);
cachemodel = ptr->cachemodellist->first;
while (cachemodel) {
print_target(cachemodel->target);
cachemodel = cachemodel->next;
}
ptr = ptr->next;
}
}