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/***************************************
A header file for the extended nodes.
Part of the Routino routing software.
******************/ /******************
This file Copyright 2008-2015 Andrew M. Bishop
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***************************************/
#ifndef NODESX_H
#define NODESX_H /*+ To stop multiple inclusions. +*/
#include <stdint.h>
#include "types.h"
#include "nodes.h"
#include "typesx.h"
#include "cache.h"
#include "files.h"
/* Data structures */
/*+ An extended structure used for processing. +*/
struct _NodeX
{
node_t id; /*+ The node identifier; initially the OSM value, later the Node index, finally the first segment. +*/
latlong_t latitude; /*+ The node latitude. +*/
latlong_t longitude; /*+ The node longitude. +*/
transports_t allow; /*+ The node allowed traffic. +*/
nodeflags_t flags; /*+ The node flags. +*/
};
/*+ A structure containing a set of nodes (memory format). +*/
struct _NodesX
{
char *filename; /*+ The name of the intermediate file (for the NodesX). +*/
char *filename_tmp; /*+ The name of the temporary file (for the NodesX). +*/
int fd; /*+ The file descriptor of the open file (for the NodesX). +*/
index_t number; /*+ The number of extended nodes still being considered. +*/
index_t knumber; /*+ The number of extended nodes kept for next time. +*/
#if !SLIM
NodeX *data; /*+ The extended node data (when mapped into memory). +*/
#else
NodeX cached[3]; /*+ Three cached extended nodes read from the file in slim mode. +*/
index_t incache[3]; /*+ The indexes of the cached extended nodes. +*/
NodeXCache *cache; /*+ A RAM cache of extended nodes read from the file. +*/
#endif
node_t *idata; /*+ The extended node IDs (sorted by ID). +*/
index_t *pdata; /*+ The node indexes after pruning. +*/
index_t *gdata; /*+ The final node indexes (sorted geographically). +*/
BitMask *super; /*+ A bit-mask marker for super nodes (same order as sorted nodes). +*/
index_t latbins; /*+ The number of bins containing latitude. +*/
index_t lonbins; /*+ The number of bins containing longitude. +*/
ll_bin_t latzero; /*+ The bin number of the furthest south bin. +*/
ll_bin_t lonzero; /*+ The bin number of the furthest west bin. +*/
};
/* Functions in nodesx.c */
NodesX *NewNodeList(int append,int readonly);
void FreeNodeList(NodesX *nodesx,int keep);
void AppendNodeList(NodesX *nodesx,node_t id,double latitude,double longitude,transports_t allow,nodeflags_t flags);
void FinishNodeList(NodesX *nodesx);
index_t IndexNodeX(NodesX *nodesx,node_t id);
void SortNodeList(NodesX *nodesx);
void RemoveNonHighwayNodes(NodesX *nodesx,WaysX *waysx,int keep);
void RemovePrunedNodes(NodesX *nodesx,SegmentsX *segmentsx);
void SortNodeListGeographically(NodesX *nodesx);
void SaveNodeList(NodesX *nodesx,const char *filename,SegmentsX *segmentsx);
/* Macros and inline functions */
#if !SLIM
#define LookupNodeX(nodesx,index,position) &(nodesx)->data[index]
#define PutBackNodeX(nodesx,nodex) while(0) { /* nop */ }
#else
/* Prototypes */
static inline NodeX *LookupNodeX(NodesX *nodesx,index_t index,int position);
static inline void PutBackNodeX(NodesX *nodesx,NodeX *nodex);
CACHE_NEWCACHE_PROTO(NodeX)
CACHE_DELETECACHE_PROTO(NodeX)
CACHE_FETCHCACHE_PROTO(NodeX)
CACHE_REPLACECACHE_PROTO(NodeX)
CACHE_INVALIDATECACHE_PROTO(NodeX)
/* Data type */
CACHE_STRUCTURE(NodeX)
/* Inline functions */
CACHE_NEWCACHE(NodeX)
CACHE_DELETECACHE(NodeX)
CACHE_FETCHCACHE(NodeX)
CACHE_REPLACECACHE(NodeX)
CACHE_INVALIDATECACHE(NodeX)
/*++++++++++++++++++++++++++++++++++++++
Lookup a particular extended node with the specified id from the file on disk.
NodeX *LookupNodeX Returns a pointer to a cached copy of the extended node.
NodesX *nodesx The set of nodes to use.
index_t index The node index to look for.
int position The position in the cache to use.
++++++++++++++++++++++++++++++++++++++*/
static inline NodeX *LookupNodeX(NodesX *nodesx,index_t index,int position)
{
nodesx->cached[position-1]=*FetchCachedNodeX(nodesx->cache,index,nodesx->fd,0);
nodesx->incache[position-1]=index;
return(&nodesx->cached[position-1]);
}
/*++++++++++++++++++++++++++++++++++++++
Put back an extended node's data into the file on disk.
NodesX *nodesx The set of nodes to modify.
NodeX *nodex The extended node to be put back.
++++++++++++++++++++++++++++++++++++++*/
static inline void PutBackNodeX(NodesX *nodesx,NodeX *nodex)
{
int position1=nodex-&nodesx->cached[0];
ReplaceCachedNodeX(nodesx->cache,nodex,nodesx->incache[position1],nodesx->fd,0);
}
#endif /* SLIM */
#endif /* NODESX_H */
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