ubusd_id.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <libubox/avl-cmp.h>
#include "ubusmsg.h"
#include "ubusd_id.h"

Go to the source code of this file.

Functions
static int	ubus_cmp_id (const void *k1, const void *k2, void *ptr)
void	ubus_init_string_tree (struct avl_tree *tree, bool dup)
void	ubus_init_id_tree (struct avl_tree *tree)
bool	ubus_alloc_id (struct avl_tree *tree, struct ubus_id *id, uint32_t val)

Variables
static int	random_fd = -1

Function Documentation

ubus_alloc_id()

bool ubus_alloc_id	(	struct avl_tree *	tree,
		struct ubus_id *	id,
		uint32_t	val
	)

Definition at line 53 of file ubusd_id.c.

{
        id->avl.key = &id->id;
        if (val) {
                id->id = val;
                return avl_insert(tree, &id->avl) == 0;
        }
 
        do {
                if (read(random_fd, &id->id, sizeof(id->id)) != sizeof(id->id))
                        return false;
 
                if (id->id < UBUS_SYSTEM_OBJECT_MAX)
                        continue;
        } while (avl_insert(tree, &id->avl) != 0);
 
        return true;
}

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ubus_cmp_id()

static int ubus_cmp_id ( const void *  k1, const void *  k2, void *  ptr  )

static

Definition at line 25 of file ubusd_id.c.

{
        const uint32_t *id1 = k1, *id2 = k2;
 
        if (*id1 < *id2)
                return -1;
        else
                return *id1 > *id2;
}

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ubus_init_id_tree()

void ubus_init_id_tree

(

struct avl_tree *

tree

)

Definition at line 40 of file ubusd_id.c.

{
        if (random_fd < 0) {
                random_fd = open("/dev/urandom", O_RDONLY);
                if (random_fd < 0) {
                        perror("open");
                        exit(1);
                }
        }
 
        avl_init(tree, ubus_cmp_id, false, NULL);
}

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ubus_init_string_tree()

void ubus_init_string_tree	(	struct avl_tree *	tree,
		bool	dup
	)

Definition at line 35 of file ubusd_id.c.

{
        avl_init(tree, avl_strcmp, dup, NULL);
}

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Variable Documentation

random_fd

int random_fd = -1

static

Definition at line 23 of file ubusd_id.c.