openjpeg/applications/jpip/libopenjpip/msgqueue_manager.c

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/*
* $Id: msgqueue_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
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* Copyright (c) 2011, Lucian Corlaciu, GSoC
* 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.
*/
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#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include "msgqueue_manager.h"
#include "metadata_manager.h"
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#include "index_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
msgqueue_param_t * gene_msgqueue( bool stateless, cachemodel_param_t *cachemodel)
{
msgqueue_param_t *msgqueue;
msgqueue = (msgqueue_param_t *)malloc( sizeof(msgqueue_param_t));
msgqueue->first = NULL;
msgqueue->last = NULL;
msgqueue->stateless = stateless;
msgqueue->cachemodel = cachemodel;
return msgqueue;
}
void delete_msgqueue( msgqueue_param_t **msgqueue)
{
message_param_t *ptr, *next;
if( !(*msgqueue))
return;
ptr = (*msgqueue)->first;
while( ptr){
next = ptr->next;
free( ptr);
ptr = next;
}
if( (*msgqueue)->stateless && (*msgqueue)->cachemodel)
delete_cachemodel( &((*msgqueue)->cachemodel));
free(*msgqueue);
}
void print_msgqueue( msgqueue_param_t *msgqueue)
{
message_param_t *ptr;
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char *message_class[] = { "Precinct", "Ext-Prec", "TileHead", "non", "Tile", "Ext-Tile", "Main", "non", "Meta"};
if( !msgqueue)
return;
fprintf( logstream, "message queue:\n");
ptr = msgqueue->first;
while( ptr){
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fprintf( logstream, "\t class_id: %lld %s\n", ptr->class_id, message_class[ptr->class_id]);
fprintf( logstream, "\t in_class_id: %lld\n", ptr->in_class_id );
fprintf( logstream, "\t csn: %lld\n", ptr->csn );
fprintf( logstream, "\t bin_offset: %#llx\n", ptr->bin_offset );
fprintf( logstream, "\t length: %#llx\n", ptr->length );
fprintf( logstream, "\t aux: %lld\n", ptr->aux );
fprintf( logstream, "\t last_byte: %d\n", ptr->last_byte );
if( ptr->phld)
print_placeholder( ptr->phld);
else
fprintf( logstream, "\t res_offset: %#llx\n", ptr->res_offset );
fprintf( logstream, "\n");
ptr = ptr->next;
}
}
void enqueue_message( message_param_t *msg, msgqueue_param_t *msgqueue);
void enqueue_mainheader( msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
target_param_t *target;
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index_param_t *codeidx;
message_param_t *msg;
cachemodel = msgqueue->cachemodel;
target = cachemodel->target;
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codeidx = target->codeidx;
msg = (message_param_t *)malloc( sizeof(message_param_t));
msg->last_byte = true;
msg->in_class_id = 0;
msg->class_id = MAINHEADER_MSG;
msg->csn = target->csn;
msg->bin_offset = 0;
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msg->length = codeidx->mhead_length;
msg->aux = 0; // non exist
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msg->res_offset = codeidx->offset;
msg->phld = NULL;
msg->next = NULL;
enqueue_message( msg, msgqueue);
cachemodel->mhead_model = true;
}
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void enqueue_tileheader( int tile_id, msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
target_param_t *target;
index_param_t *codeidx;
message_param_t *msg;
cachemodel = msgqueue->cachemodel;
target = cachemodel->target;
codeidx = target->codeidx;
if( !cachemodel->th_model[ tile_id]){
msg = (message_param_t *)malloc( sizeof(message_param_t));
msg->last_byte = true;
msg->in_class_id = tile_id;
msg->class_id = TILE_HEADER_MSG;
msg->csn = target->csn;
msg->bin_offset = 0;
msg->length = codeidx->tileheader[tile_id]->tlen;
msg->aux = 0; // non exist
msg->res_offset = codeidx->offset + get_elemOff( codeidx->tilepart, 0, tile_id); // Changed from Lucian's
msg->phld = NULL;
msg->next = NULL;
enqueue_message( msg, msgqueue);
cachemodel->th_model[ tile_id] = true;
}
}
void enqueue_tile( int tile_id, int level, msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
target_param_t *target;
bool *tp_model;
Byte8_t numOftparts; // num of tile parts par tile
Byte8_t numOftiles;
index_param_t *codeidx;
faixbox_param_t *tilepart;
message_param_t *msg;
Byte8_t binOffset, binLength;
int i;
cachemodel = msgqueue->cachemodel;
target = cachemodel->target;
codeidx = target->codeidx;
tilepart = codeidx->tilepart;
numOftparts = get_nmax( tilepart);
numOftiles = get_m( tilepart);
if( tile_id < 0 || numOftiles <= tile_id){
fprintf( FCGI_stderr, "Error, Invalid tile-id %d\n", tile_id);
return;
}
tp_model = &cachemodel->tp_model[ tile_id*numOftparts];
binOffset=0;
for( i=0; i<numOftparts-level; i++){
binLength = get_elemLen( tilepart, i, tile_id);
if( !tp_model[i]){
msg = (message_param_t *)malloc( sizeof(message_param_t));
msg->last_byte = i==numOftparts-1? true : false;
msg->in_class_id = tile_id;
#if 0
msg->class_id = TILE_MSG;
#else
msg->class_id = EXT_TILE_MSG;
#endif
msg->csn = target->csn;
msg->bin_offset = binOffset;
msg->length = binLength;
msg->aux = numOftparts-i;
msg->res_offset = codeidx->offset+get_elemOff( tilepart, i, tile_id)/*-1*/;
msg->phld = NULL;
msg->next = NULL;
enqueue_message( msg, msgqueue);
tp_model[i] = true;
}
binOffset += binLength;
}
}
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void enqueue_precinct( int seq_id, int tile_id, int comp_id, msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
index_param_t *codeidx;
faixbox_param_t *precpacket;
message_param_t *msg;
Byte8_t nmax;
cachemodel = msgqueue->cachemodel;
codeidx = cachemodel->target->codeidx;
precpacket = codeidx->precpacket[ comp_id];
nmax = get_nmax(precpacket);
if( !cachemodel->pp_model[comp_id][ tile_id*nmax+seq_id]){
msg = (message_param_t *)malloc( sizeof(message_param_t));
msg->last_byte = true;
msg->in_class_id = comp_precinct_id( tile_id, comp_id, seq_id, codeidx->SIZ.Csiz, codeidx->SIZ.XTnum * codeidx->SIZ.YTnum);
msg->class_id = PRECINCT_MSG;
msg->csn = cachemodel->target->csn;
msg->bin_offset = 0;
msg->length = get_elemLen( precpacket, seq_id, tile_id);
msg->aux = 0;
msg->res_offset = codeidx->offset+get_elemOff( precpacket, seq_id, tile_id);
msg->phld = NULL;
msg->next = NULL;
enqueue_message( msg, msgqueue);
cachemodel->pp_model[comp_id][ tile_id*nmax+seq_id] = true;
}
}
Byte8_t comp_precinct_id( int t, int c, int s, int num_components, int num_tiles)
{
return t + (c + s * num_components ) * num_tiles;
}
void enqueue_box( int meta_id, boxlist_param_t *boxlist, msgqueue_param_t *msgqueue, Byte8_t *binOffset);
void enqueue_phld( int meta_id, placeholderlist_param_t *phldlist, msgqueue_param_t *msgqueue, Byte8_t *binOffset);
void enqueue_boxcontents( int meta_id, boxcontents_param_t *boxcontents, msgqueue_param_t *msgqueue, Byte8_t *binOffset);
void enqueue_metadata( int meta_id, msgqueue_param_t *msgqueue)
{
metadatalist_param_t *metadatalist;
metadata_param_t *metadata;
Byte8_t binOffset;
metadatalist = msgqueue->cachemodel->target->codeidx->metadatalist;
metadata = search_metadata( meta_id, metadatalist);
if( !metadata){
fprintf( FCGI_stderr, "Error: metadata-bin %d not found\n", meta_id);
return;
}
binOffset = 0;
if( metadata->boxlist)
enqueue_box( meta_id, metadata->boxlist, msgqueue, &binOffset);
if( metadata->placeholderlist)
enqueue_phld( meta_id, metadata->placeholderlist, msgqueue, &binOffset);
if( metadata->boxcontents)
enqueue_boxcontents( meta_id, metadata->boxcontents, msgqueue, &binOffset);
msgqueue->last->last_byte = true;
}
message_param_t * gene_metamsg( int meta_id, Byte8_t binoffset, Byte8_t length, Byte8_t res_offset, placeholder_param_t *phld, Byte8_t csn);
void enqueue_box( int meta_id, boxlist_param_t *boxlist, msgqueue_param_t *msgqueue, Byte8_t *binOffset)
{
box_param_t *box;
message_param_t *msg;
box = boxlist->first;
while( box){
msg = gene_metamsg( meta_id, *binOffset, box->length, box->offset, NULL, msgqueue->cachemodel->target->csn);
enqueue_message( msg, msgqueue);
*binOffset += box->length;
box = box->next;
}
}
void enqueue_phld( int meta_id, placeholderlist_param_t *phldlist, msgqueue_param_t *msgqueue, Byte8_t *binOffset)
{
placeholder_param_t *phld;
message_param_t *msg;
phld = phldlist->first;
while( phld){
msg = gene_metamsg( meta_id, *binOffset, phld->LBox, 0, phld, msgqueue->cachemodel->target->csn);
enqueue_message( msg, msgqueue);
*binOffset += phld->LBox;
phld = phld->next;
}
}
void enqueue_boxcontents( int meta_id, boxcontents_param_t *boxcontents, msgqueue_param_t *msgqueue, Byte8_t *binOffset)
{
message_param_t *msg;
msg = gene_metamsg( meta_id, *binOffset, boxcontents->length, boxcontents->offset, NULL, msgqueue->cachemodel->target->csn);
enqueue_message( msg, msgqueue);
*binOffset += boxcontents->length;
}
message_param_t * gene_metamsg( int meta_id, Byte8_t binOffset, Byte8_t length, Byte8_t res_offset, placeholder_param_t *phld, Byte8_t csn)
{
message_param_t *msg;
msg = (message_param_t *)malloc( sizeof(message_param_t));
msg->last_byte = false;
msg->in_class_id = meta_id;
msg->class_id = METADATA_MSG;
msg->csn = csn;
msg->bin_offset = binOffset;
msg->length = length;
msg->aux = 0; // non exist
msg->res_offset = res_offset;
msg->phld = phld;
msg->next = NULL;
return msg;
}
void enqueue_message( message_param_t *msg, msgqueue_param_t *msgqueue)
{
if( msgqueue->first)
msgqueue->last->next = msg;
else
msgqueue->first = msg;
msgqueue->last = msg;
}
void emit_bin_id_vbas( Byte_t bb, Byte_t c, Byte8_t in_class_id);
void emit_vbas( Byte8_t code);
void emit_body( message_param_t *msg, int fd);
void emit_placeholder( placeholder_param_t *phld);
void emit_stream_from_msgqueue( msgqueue_param_t *msgqueue)
{
message_param_t *msg;
Byte8_t class_id, csn;
Byte_t bb, c;
if( !(msgqueue))
return;
msg = msgqueue->first;
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class_id = -1;
csn = -1;
while( msg){
if( msg->csn == csn){
if( msg->class_id == class_id)
bb = 1;
else{
bb = 2;
class_id = msg->class_id;
}
}
else{
bb = 3;
class_id = msg->class_id;
csn = msg->csn;
}
c = msg->last_byte ? 1 : 0;
emit_bin_id_vbas( bb, c, msg->in_class_id);
if( bb >= 2)
emit_vbas( class_id);
if (bb == 3)
emit_vbas( csn);
emit_vbas( msg->bin_offset);
emit_vbas (msg->length);
if( msg->class_id%2) // Aux is present only if the id is odd
emit_vbas( msg->aux);
if( msg->phld)
emit_placeholder( msg->phld);
else
emit_body( msg, msgqueue->cachemodel->target->fd);
msg = msg->next;
}
}
void emit_vbas_with_bytelen( Byte8_t code, int bytelength);
void print_binarycode( Byte8_t n, int segmentlen);
void emit_bin_id_vbas( Byte_t bb, Byte_t c, Byte8_t in_class_id)
{
int bytelength;
Byte8_t tmp;
// A.2.3 In-class identifiers
// 7k-3bits, where k is the number of bytes in the VBAS
bytelength = 1;
tmp = in_class_id >> 4;
while( tmp){
bytelength ++;
tmp >>= 7;
}
in_class_id |= (((bb & 3) << 5) | (c & 1) << 4) << ((bytelength-1)*7);
emit_vbas_with_bytelen( in_class_id, bytelength);
}
void emit_vbas( Byte8_t code)
{
int bytelength;
Byte8_t tmp;
bytelength = 1;
tmp = code;
while( tmp >>= 7)
bytelength ++;
emit_vbas_with_bytelen( code, bytelength);
}
void emit_vbas_with_bytelen( Byte8_t code, int bytelength)
{
int n;
Byte8_t seg;
n = bytelength - 1;
while( n >= 0) {
seg = ( code >> (n*7)) & 0x7f;
if( n)
seg |= 0x80;
fputc(( Byte4_t)seg, FCGI_stdout);
n--;
}
}
void emit_body( message_param_t *msg, int fd)
{
Byte_t *data;
if( lseek( fd, msg->res_offset, SEEK_SET)==-1){
fprintf( FCGI_stderr, "Error: fseek in emit_body()\n");
return;
}
data = (Byte_t *)malloc( msg->length);
if( read( fd, data, msg->length) != msg->length){
free( data);
fprintf( FCGI_stderr, "Error: fread in emit_body()\n");
return;
}
if( fwrite( data, msg->length, 1, FCGI_stdout) < 1){
free( data);
fprintf( FCGI_stderr, "Error: fwrite in emit_body()\n");
return;
}
free(data);
}
void emit_bigendian_bytes( Byte8_t code, int bytelength);
void emit_placeholder( placeholder_param_t *phld)
{
emit_bigendian_bytes( phld->LBox, 4);
if( fwrite( phld->TBox, 4, 1, FCGI_stdout) < 1){
fprintf( FCGI_stderr, "Error: fwrite in emit_placeholder()\n");
return;
}
emit_bigendian_bytes( phld->Flags, 4);
emit_bigendian_bytes( phld->OrigID, 8);
if( fwrite( phld->OrigBH, phld->OrigBHlen, 1, FCGI_stdout) < 1){
fprintf( FCGI_stderr, "Error: fwrite in emit_placeholder()\n");
return;
}
}
void emit_bigendian_bytes( Byte8_t code, int bytelength)
{
int n;
Byte8_t seg;
n = bytelength - 1;
while( n >= 0) {
seg = ( code >> (n*8)) & 0xff;
fputc(( Byte4_t)seg, FCGI_stdout);
n--;
}
}
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void print_binarycode( Byte8_t n, int segmentlen)
{
char buf[256];
int i=0, j, k;
do{
buf[i++] = n%2 ? '1' : '0';
}while((n=n/2));
for( j=segmentlen-1; j>=i; j--)
putchar('0');
for( j=i-1, k=0; j>=0; j--, k++){
putchar( buf[j]);
if( !((k+1)%segmentlen))
printf(" ");
}
printf("\n");
}
Byte_t * parse_bin_id_vbas( Byte_t *streamptr, Byte_t *bb, Byte_t *c, Byte8_t *in_class_id);
Byte_t * parse_vbas( Byte_t *streamptr, Byte8_t *elem);
void parse_JPIPstream( Byte_t *JPIPstream, Byte8_t streamlen, Byte8_t offset, msgqueue_param_t *msgqueue)
{
Byte_t *ptr; // stream pointer
message_param_t *msg;
Byte_t bb, c;
Byte8_t class_id, csn;
class_id = -1; // dummy
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csn = -1;
ptr = JPIPstream;
while( ptr-JPIPstream < streamlen){
msg = (message_param_t *)malloc( sizeof(message_param_t));
ptr = parse_bin_id_vbas( ptr, &bb, &c, &msg->in_class_id);
msg->last_byte = c == 1 ? true : false;
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if( bb >= 2)
ptr = parse_vbas( ptr, &class_id);
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msg->class_id = class_id;
if (bb == 3)
ptr = parse_vbas( ptr, &csn);
msg->csn = csn;
ptr = parse_vbas( ptr, &msg->bin_offset);
ptr = parse_vbas( ptr, &msg->length);
if( msg->class_id%2) // Aux is present only if the id is odd
ptr = parse_vbas( ptr, &msg->aux);
else
msg->aux = 0;
msg->res_offset = ptr-JPIPstream+offset;
msg->phld = NULL;
msg->next = NULL;
if(msgqueue->first)
msgqueue->last->next = msg;
else
msgqueue->first = msg;
msgqueue->last = msg;
ptr += msg->length;
}
}
void parse_metadata( metadata_param_t *metadata, message_param_t *msg, Byte_t *stream);
void parse_metamsg( msgqueue_param_t *msgqueue, Byte_t *stream, Byte8_t streamlen, metadatalist_param_t *metadatalist)
{
message_param_t *msg;
if( metadatalist == NULL)
return;
msg = msgqueue->first;
while( msg){
if( msg->class_id == METADATA_MSG){
metadata_param_t *metadata = gene_metadata( msg->in_class_id, NULL, NULL, NULL);
insert_metadata_into_list( metadata, metadatalist);
parse_metadata( metadata, msg, stream+msg->res_offset);
}
msg = msg->next;
}
}
placeholder_param_t * parse_phld( Byte_t *datastream, Byte8_t metalength);
void parse_metadata( metadata_param_t *metadata, message_param_t *msg, Byte_t *datastream)
{
char *boxtype = (char *)(datastream+4);
msg->phld = NULL;
if( strncmp( boxtype, "phld", 4) == 0){
if( !metadata->placeholderlist)
metadata->placeholderlist = gene_placeholderlist();
placeholder_param_t *phld = parse_phld( datastream, msg->length);
msg->phld = phld;
insert_placeholder_into_list( phld, metadata->placeholderlist);
}
else if( isalpha(boxtype[0]) && isalpha(boxtype[1]) &&
(isalnum(boxtype[2])||isblank(boxtype[2])) &&
(isalpha(boxtype[3])||isblank(boxtype[3]))){
if( !metadata->boxlist)
metadata->boxlist = gene_boxlist();
box_param_t *box = gene_boxbyOffinStream( datastream, msg->res_offset);
insert_box_into_list( box, metadata->boxlist);
}
else
metadata->boxcontents = gene_boxcontents( msg->res_offset, msg->length);
}
placeholder_param_t * parse_phld( Byte_t *datastream, Byte8_t metalength)
{
placeholder_param_t *phld;
phld = (placeholder_param_t *)malloc( sizeof(placeholder_param_t));
phld->LBox = big4( datastream);
strcpy( phld->TBox, "phld");
phld->Flags = big4( datastream+8);
phld->OrigID = big8( datastream+12);
phld->OrigBHlen = metalength - 20;
phld->OrigBH = (Byte_t *)malloc(phld->OrigBHlen);
memcpy( phld->OrigBH, datastream+20, phld->OrigBHlen);
phld->next = NULL;
return phld;
}
Byte_t * parse_bin_id_vbas( Byte_t *streamptr, Byte_t *bb, Byte_t *c, Byte8_t *in_class_id)
{
Byte_t code;
Byte_t *ptr;
ptr = streamptr;
code = *(ptr++);
*bb = (code >> 5) & 3;
*c = (code >> 4) & 1;
*in_class_id = code & 15;
while(code >> 7){
code = *(ptr++);
*in_class_id = (*in_class_id << 7) | (code & 0x7f);
}
return ptr;
}
Byte_t * parse_vbas( Byte_t *streamptr, Byte8_t *elem)
{
Byte_t code;
Byte_t *ptr;
*elem = 0;
ptr = streamptr;
do{
code = *(ptr++);
*elem = (*elem << 7) | (code & 0x7f);
}while(code >> 7);
return ptr;
}
void delete_message_in_msgqueue( message_param_t **msg, msgqueue_param_t *msgqueue)
{
message_param_t *ptr;
if( !(*msg))
return;
if( *msg == msgqueue->first)
msgqueue->first = (*msg)->next;
else{
ptr = msgqueue->first;
while( ptr->next != *msg){
ptr=ptr->next;
}
ptr->next = (*msg)->next;
if( *msg == msgqueue->last)
msgqueue->last = ptr;
}
free( *msg);
}