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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2011 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <glib.h>
#include <string.h>
#include "coord.h"
#include "item.h"
#include "attr.h"
#include "maptool.h"
struct item_bin_sink *
item_bin_sink_new(void)
{
struct item_bin_sink *ret=g_new0(struct item_bin_sink, 1);
return ret;
}
struct item_bin_sink_func *
item_bin_sink_func_new(int (*func)(struct item_bin_sink_func *func, struct item_bin *ib, struct tile_data *tile_data))
{
struct item_bin_sink_func *ret=g_new0(struct item_bin_sink_func, 1);
ret->func=func;
return ret;
}
void
item_bin_sink_func_destroy(struct item_bin_sink_func *func)
{
g_free(func);
}
void
item_bin_sink_add_func(struct item_bin_sink *sink, struct item_bin_sink_func *func)
{
sink->sink_funcs=g_list_append(sink->sink_funcs, func);
}
void
item_bin_sink_destroy(struct item_bin_sink *sink)
{
/* g_list_foreach(sink->sink_funcs, (GFunc)g_free, NULL); */
g_list_free(sink->sink_funcs);
g_free(sink);
}
int
item_bin_write_to_sink(struct item_bin *ib, struct item_bin_sink *sink, struct tile_data *tile_data)
{
GList *list=sink->sink_funcs;
int ret=0;
while (list) {
struct item_bin_sink_func *func=list->data;
ret=func->func(func, ib, tile_data);
if (ret)
break;
list=g_list_next(list);
}
return ret;
}
struct item_bin_sink *
file_reader_new(FILE *in, int limit, int offset)
{
struct item_bin_sink *ret;
if (!in)
return NULL;
ret=item_bin_sink_new();
ret->priv_data[0]=in;
ret->priv_data[1]=(void *)(long)limit;
ret->priv_data[2]=(void *)(long)offset;
fseek(in, 0, SEEK_SET);
return ret;
}
int
file_reader_finish(struct item_bin_sink *sink)
{
struct item_bin *ib;
int ret =0;
FILE *in=sink->priv_data[0];
int limit=(int)(long)sink->priv_data[1];
int offset=(int)(long)sink->priv_data[2];
while ((ib=read_item(in))) {
if (offset > 0) {
offset--;
} else {
ret=item_bin_write_to_sink(ib, sink, NULL);
if (ret || (limit != -1 && !--limit)) {
item_bin_sink_destroy(sink);
return ret;
}
}
}
item_bin_sink_destroy(sink);
return 0;
}
int
file_writer_process(struct item_bin_sink_func *func, struct item_bin *ib, struct tile_data *tile_data)
{
FILE *out=func->priv_data[0];
item_bin_write(ib, out);
return 0;
}
struct item_bin_sink_func *
file_writer_new(FILE *out)
{
struct item_bin_sink_func *file_writer;
if (!out)
return NULL;
file_writer=item_bin_sink_func_new(file_writer_process);
file_writer->priv_data[0]=out;
return file_writer;
}
int
file_writer_finish(struct item_bin_sink_func *file_writer)
{
item_bin_sink_func_destroy(file_writer);
return 0;
}
int
tile_collector_process(struct item_bin_sink_func *tile_collector, struct item_bin *ib, struct tile_data *tile_data)
{
int *buffer,*buffer2;
int len=ib->len+1;
GHashTable *hash=tile_collector->priv_data[0];
buffer=g_hash_table_lookup(hash, tile_data->buffer);
buffer2=g_malloc((len+(buffer ? buffer[0] : 1))*4);
if (buffer) {
memcpy(buffer2, buffer, buffer[0]*4);
} else
buffer2[0]=1;
memcpy(buffer2+buffer2[0], ib, len*4);
buffer2[0]+=len;
g_hash_table_insert(hash, g_strdup(tile_data->buffer), buffer2);
return 0;
}
struct item_bin_sink_func *
tile_collector_new(struct item_bin_sink *out)
{
struct item_bin_sink_func *tile_collector;
tile_collector=item_bin_sink_func_new(tile_collector_process);
tile_collector->priv_data[0]=g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
tile_collector->priv_data[1]=out;
return tile_collector;
}
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