io.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <assert.h>
#include <errno.h>
#include <grass/gis.h>
#include "index.h"

Include dependency graph for io.c:

Go to the source code of this file.

Functions
void	RTreeAddNodePos (off_t pos, int level, struct RTree *t)
off_t	RTreeGetNodePos (struct RTree *t)
size_t	RTreeReadBranch (struct RTree_Branch *b, struct RTree *t)
size_t	RTreeReadNode (struct RTree_Node *n, off_t nodepos, struct RTree *t)
struct RTree_Node *	RTreeGetNode (off_t nodepos, int level, struct RTree *t)
size_t	RTreeWriteBranch (struct RTree_Branch *b, struct RTree *t)
size_t	RTreeWriteNode (struct RTree_Node *n, struct RTree *t)
size_t	RTreeRewriteNode (struct RTree_Node *n, off_t nodepos, struct RTree *t)
void	RTreeNodeChanged (struct RTree_Node *n, off_t nodepos, struct RTree *t)
void	RTreeFlushBuffer (struct RTree *t)

Function Documentation

RTreeAddNodePos()

void RTreeAddNodePos	(	off_t	pos,
		int	level,
		struct RTree *	t
	)

Definition at line 32 of file io.c.

References RTree::_recycle::alloc, assert, RTree::_recycle::avail, NodeBuffer::dirty, RTree::free_nodes, RTree::nb, NODE_BUFFER_SIZE, NodeBuffer::pos, RTree::_recycle::pos, and RTree::used.

RTreeFlushBuffer()

void RTreeFlushBuffer

(

struct RTree *

t

)

Definition at line 230 of file io.c.

References NodeBuffer::dirty, NodeBuffer::n, RTree::nb, NODE_BUFFER_SIZE, NodeBuffer::pos, RTree::rootlevel, and RTreeRewriteNode().

RTreeGetNode()

struct RTree_Node* RTreeGetNode	(	off_t	nodepos,
		int	level,
		struct RTree *	t
	)

Definition at line 112 of file io.c.

References NodeBuffer::dirty, RTree_Node::level, NodeBuffer::n, RTree::nb, NODE_BUFFER_SIZE, NodeBuffer::pos, RTreeReadNode(), RTreeRewriteNode(), and RTree::used.

RTreeGetNodePos()

off_t RTreeGetNodePos

(

struct RTree *

t

)

Definition at line 72 of file io.c.

References RTree::_recycle::avail, RTree::fd, RTree::free_nodes, and RTree::_recycle::pos.

RTreeNodeChanged()

void RTreeNodeChanged	(	struct RTree_Node *	n,
		off_t	nodepos,
		struct RTree *	t
	)

Definition at line 198 of file io.c.

References assert, NodeBuffer::dirty, RTree_Node::level, RTree::nb, NODE_BUFFER_SIZE, NodeBuffer::pos, and RTree::used.

RTreeReadBranch()

size_t RTreeReadBranch	(	struct RTree_Branch *	b,
		struct RTree *	t
	)

Definition at line 84 of file io.c.

References RTree_Rect::boundary, RTree_Branch::child, RTree::fd, RTree_Branch::rect, and RTree::rectsize.

Referenced by RTreeReadNode().

RTreeReadNode()

size_t RTreeReadNode	(	struct RTree_Node *	n,
		off_t	nodepos,
		struct RTree *	t
	)

Definition at line 95 of file io.c.

References RTree_Node::branch, RTree_Node::count, RTree::fd, RTree_Node::level, MAXCARD, and RTreeReadBranch().

Referenced by RTreeGetNode().

RTreeRewriteNode()

size_t RTreeRewriteNode	(	struct RTree_Node *	n,
		off_t	nodepos,
		struct RTree *	t
	)

Definition at line 190 of file io.c.

References RTree::fd, and RTreeWriteNode().

Referenced by RTreeFlushBuffer(), and RTreeGetNode().

RTreeWriteBranch()

size_t RTreeWriteBranch	(	struct RTree_Branch *	b,
		struct RTree *	t
	)

Definition at line 154 of file io.c.

References RTree_Rect::boundary, RTree_Branch::child, RTree::fd, G_fatal_error(), RTree_Branch::rect, and RTree::rectsize.

Referenced by RTreeWriteNode().

RTreeWriteNode()

size_t RTreeWriteNode	(	struct RTree_Node *	n,
		struct RTree *	t
	)

Definition at line 169 of file io.c.

References RTree_Node::branch, RTree_Node::count, RTree::fd, G_fatal_error(), RTree_Node::level, MAXCARD, and RTreeWriteBranch().

Referenced by RTreeCreateTree(), and RTreeRewriteNode().