smcore.h File Reference

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Macros
#define	ERULE_OUTOFBBOX   1
	The node is outside of the area to render.
#define	ERULE_WAYOPEN   2
	The rule applies only to closed ways.
#define	ERULE_WAYCLOSED   3
	The rule applies only to open ways.
#define	ERULE_NOMATCH   4
	The tags of the rule do not match the object.
#define	ERULE_INVISIBLE   5
	The object is invisible.
#define	RULES_TAG   "smrender:rules"

Typedefs
typedef int(*	tree_func_t )(osm_obj_t *, void *)

Enumerations
enum	{ IDX_NODE, IDX_WAY, IDX_REL }

Functions
int	traverse (const bx_node_t *, int, int, tree_func_t, void *)
int	execute_rules (bx_node_t *, int)
int	rev_index_way_nodes (osm_way_t *, bx_node_t **)
int	rev_index_rel_nodes (osm_rel_t *, bx_node_t **)
int	get_rev_index (osm_obj_t **, const osm_obj_t *)
void	sm_wait_threads (void)
int	traverse_queue (const bx_node_t *, int, tree_func_t, void *)
int	sm_is_threaded (const smrule_t *)

Detailed Description

This file contains the prototypes for the core routines of the execution engine.

Author

Bernhard R. Fischer

Function Documentation

int get_rev_index	(	osm_obj_t **	optr,
		const osm_obj_t *	o
	)

Find OSM object in object list and return index.

Parameters

optr	Pointer to NULL-terminated object list.
o	Pointer to object.

Returns

Index greater or equal 0 of object within list. If the list has no such object the index of the last element (which is a NULL pointer) is returned. If optr itself is a NULL pointer -1 is returned.

int traverse	(	const bx_node_t *	nt,
		int	d,
		int	idx,
		tree_func_t	dhandler,
		void *	p
	)

Recursively traverse tree and call function dhandler for all leaf nodes which are not NULL.

Parameters

nt	Pointer to tree root.
d	Depth of traversal. This should be 0 if called at the root of the tree.
idx	The tree actually allows to be an overlapped tree of several trees. idx is the index of the tree which should be traversed.
dhandler	This is the function called at the leaf node.
p	This is a generic argument which is passed to dhandler upon call.

Returns

On success 0 is returned. If dhandler() returns a value != 0 traverse() will break the recursion and return the return value of dhandler().