osm_protobuf.c File Reference

#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <unistd.h>
#include <time.h>
#include <zlib.h>
#include "maptool.h"
#include "debug.h"
#include "linguistics.h"
#include "file.h"
#include "fileformat.pb-c.h"
#include "osmformat.pb-c.h"

Macros
#define	MAX_HEADER_LENGTH   1024 * 64
#define	MAX_BLOB_LENGTH   1024 * 1024 * 32
#define	SANITY_CHECK_LENGTH(length, max_length)

Functions
static OSMPBF__BlobHeader *	read_header (FILE *f)
static OSMPBF__Blob *	read_blob (OSMPBF__BlobHeader *header, FILE *f, unsigned char *buffer)
static unsigned char *	uncompress_blob (OSMPBF__Blob *blob)
static int	get_string (char *buffer, int buffer_size, OSMPBF__PrimitiveBlock *primitive_block, int id, int escape)
static void	process_osmheader (OSMPBF__Blob *blob, unsigned char *data)
static void	process_tag (OSMPBF__PrimitiveBlock *primitive_block, int key, int val)
static void	process_dense (OSMPBF__PrimitiveBlock *primitive_block, OSMPBF__DenseNodes *dense, struct maptool_osm *osm)
static void	process_way (OSMPBF__PrimitiveBlock *primitive_block, OSMPBF__Way *way, struct maptool_osm *osm)
static void	process_relation (OSMPBF__PrimitiveBlock *primitive_block, OSMPBF__Relation *relation, struct maptool_osm *osm)
static void	process_osmdata (OSMPBF__Blob *blob, unsigned char *data, struct maptool_osm *osm)
int	map_collect_data_osm_protobuf (FILE *in, struct maptool_osm *osm)

Variables
static double	latlon_scale =10000000.0

Macro Definition Documentation

MAX_BLOB_LENGTH

#define MAX_BLOB_LENGTH   1024 * 1024 * 32

MAX_HEADER_LENGTH

#define MAX_HEADER_LENGTH   1024 * 64

SANITY_CHECK_LENGTH

#define SANITY_CHECK_LENGTH	(		length,
			max_length
	)

Value:

        if (length > max_length){                                          \
                fprintf(stderr,"Not a valid protobuf file. "               \
                        "Invalid block size in input: %d, max is %d. \n",  \
                                length, max_length);                       \
                return NULL;                                                   \
        }

Function Documentation

get_string()

static int get_string ( char *  buffer, int  buffer_size, OSMPBF__PrimitiveBlock *  primitive_block, int  id, int  escape  )

static

References buffer_size, data, and p.

Referenced by process_relation(), and process_tag().

map_collect_data_osm_protobuf()

int map_collect_data_osm_protobuf	(	FILE *	in,
		struct maptool_osm *	osm
	)

References data, MAX_BLOB_LENGTH, process_osmdata(), process_osmheader(), read_blob(), read_header(), and uncompress_blob().

Referenced by osm_read_input_data().

process_dense()

static void process_dense ( OSMPBF__PrimitiveBlock *  primitive_block, OSMPBF__DenseNodes *  dense, struct maptool_osm *  osm  )

static

References lat, latlon_scale, osm_add_node(), osm_end_node(), and process_tag().

Referenced by process_osmdata().

process_osmdata()

static void process_osmdata ( OSMPBF__Blob *  blob, unsigned char *  data, struct maptool_osm *  osm  )

static

References data, process_dense(), process_relation(), and process_way().

Referenced by map_collect_data_osm_protobuf().

process_osmheader()

static void process_osmheader ( OSMPBF__Blob *  blob, unsigned char *  data  )

static

References data.

Referenced by map_collect_data_osm_protobuf().

process_relation()

static void process_relation ( OSMPBF__PrimitiveBlock *  primitive_block, OSMPBF__Relation *  relation, struct maptool_osm *  osm  )

static

References get_string(), osm_add_member(), osm_add_relation(), osm_end_relation(), and process_tag().

Referenced by process_osmdata().

process_tag()

static void process_tag ( OSMPBF__PrimitiveBlock *  primitive_block, int  key, int  val  )

static

References get_string(), key, and osm_add_tag().

Referenced by process_dense(), process_relation(), and process_way().

process_way()

static void process_way ( OSMPBF__PrimitiveBlock *  primitive_block, OSMPBF__Way *  way, struct maptool_osm *  osm  )

static

References osm_add_nd(), osm_add_way(), osm_end_way(), and process_tag().

Referenced by process_osmdata().

read_blob()

static OSMPBF__Blob* read_blob ( OSMPBF__BlobHeader *  header, FILE *  f, unsigned char *  buffer  )

static

References MAX_BLOB_LENGTH, and SANITY_CHECK_LENGTH.

Referenced by map_collect_data_osm_protobuf().

read_header()

static OSMPBF__BlobHeader* read_header ( FILE *  f )

static

References MAX_HEADER_LENGTH, and SANITY_CHECK_LENGTH.

Referenced by map_collect_data_osm_protobuf().

uncompress_blob()

static unsigned char* uncompress_blob ( OSMPBF__Blob *  blob )

static

Referenced by map_collect_data_osm_protobuf().

Variable Documentation

latlon_scale

double latlon_scale =10000000.0

static

Referenced by process_dense().