smcore.c File Reference

#include <inttypes.h>
#include <signal.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include "smrender.h"
#include "smcore.h"
#include "smaction.h"
#include "rdata.h"
#include "lists.h"

Include dependency graph for smcore.c:

Functions
int	apply_rule (osm_obj_t *o, smrule_t *r, int *ret)
int	apply_smrules0 (osm_obj_t *o, smrule_t *r)
int	call_fini (smrule_t *r)
int	apply_smrules (smrule_t *r, long ver)
int	execute_rules (bx_node_t *rules, int version)
int	traverse (const bx_node_t *nt, int d, int idx, tree_func_t dhandler, void *p)
int	get_rev_index (osm_obj_t **optr, const osm_obj_t *o)
int	add_rev_ptr (bx_node_t **idx_root, int64_t id, int idx, osm_obj_t *o)
int	rev_index_way_nodes (osm_way_t *w, bx_node_t **idx_root)
int	rev_index_rel_nodes (osm_rel_t *r, bx_node_t **idx_root)

Variables
volatile sig_atomic_t	int_
int	render_all_nodes_

Detailed Description

This file contains the code of the main execution process.

Author

Bernhard R. Fischer

Function Documentation

int apply_rule	(	osm_obj_t *	o,
		smrule_t *	r,
		int *	ret
	)

Match and apply ruleset to object if it is visible.

Parameters

o	Object which should be rendered (to which to action is applied).
r	Rule.
ret	This variable receives the return value of the rule's act_XXX_main() function. It may be set to NULL.

Returns

If the act_XXX_main() function was called 0 is returned and its return value will be stored to ret. If the rule's main function was not called, a positive integer is returned which defines the reason for act_XXX_main() not being called. These reasons are defined as cpp macros named ERULE_xxx.

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().