/*
 * Based on strlist.c by:
 * (c) 2009 Arnaldo Carvalho de Melo <acme@redhat.com>
 *
 * Licensed under the GPLv2.
 */

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>

#include "rblist.h"

int rblist__add_node(struct rblist *rblist, const void *new_entry)
{
	struct rb_node **p = &rblist->entries.rb_node;
	struct rb_node *parent = NULL, *new_node;

	while (*p != NULL) {
		int rc;

		parent = *p;

		rc = rblist->node_cmp(parent, new_entry);
		if (rc > 0)
			p = &(*p)->rb_left;
		else if (rc < 0)
			p = &(*p)->rb_right;
		else
			return -EEXIST;
	}

	new_node = rblist->node_new(rblist, new_entry);
	if (new_node == NULL)
		return -ENOMEM;

	rb_link_node(new_node, parent, p);
	rb_insert_color(new_node, &rblist->entries);
	++rblist->nr_entries;

	return 0;
}

void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node)
{
	rb_erase(rb_node, &rblist->entries);
	--rblist->nr_entries;
	rblist->node_delete(rblist, rb_node);
}

static struct rb_node *__rblist__findnew(struct rblist *rblist,
					 const void *entry,
					 bool create)
{
	struct rb_node **p = &rblist->entries.rb_node;
	struct rb_node *parent = NULL, *new_node = NULL;

	while (*p != NULL) {
		int rc;

		parent = *p;

		rc = rblist->node_cmp(parent, entry);
		if (rc > 0)
			p = &(*p)->rb_left;
		else if (rc < 0)
			p = &(*p)->rb_right;
		else
			return parent;
	}

	if (create) {
		new_node = rblist->node_new(rblist, entry);
		if (new_node) {
			rb_link_node(new_node, parent, p);
			rb_insert_color(new_node, &rblist->entries);
			++rblist->nr_entries;
		}
	}

	return new_node;
}

struct rb_node *rblist__find(struct rblist *rblist, const void *entry)
{
	return __rblist__findnew(rblist, entry, false);
}

struct rb_node *rblist__findnew(struct rblist *rblist, const void *entry)
{
	return __rblist__findnew(rblist, entry, true);
}

void rblist__init(struct rblist *rblist)
{
	if (rblist != NULL) {
		rblist->entries	 = RB_ROOT;
		rblist->nr_entries = 0;
	}

	return;
}

void rblist__delete(struct rblist *rblist)
{
	if (rblist != NULL) {
		struct rb_node *pos, *next = rb_first(&rblist->entries);

		while (next) {
			pos = next;
			next = rb_next(pos);
			rblist__remove_node(rblist, pos);
		}
		free(rblist);
	}
}

struct rb_node *rblist__entry(const struct rblist *rblist, unsigned int idx)
{
	struct rb_node *node;

	for (node = rb_first(&rblist->entries); node; node = rb_next(node)) {
		if (!idx--)
			return node;
	}

	return NULL;
}
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/arch?h=nds-private-remove'>arch</a>/<a href='/cgit.cgi/linux/net-next.git/diff/arch/sparc?h=nds-private-remove'>sparc</a>/<a href='/cgit.cgi/linux/net-next.git/diff/arch/sparc/lib?h=nds-private-remove'>lib</a>/<a href='/cgit.cgi/linux/net-next.git/diff/arch/sparc/lib/csum_copy.S?h=nds-private-remove'>csum_copy.S</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove'>Diffstat</a> (limited to 'arch/sparc/lib/csum_copy.S')</div><table summary='diffstat' class='diffstat'>