Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <bio.h>
#include <ctype.h>
#include <ndb.h>
#include "ndbhf.h"

/*
 *  free a parsed entry
 */
void
ndbfree(Ndbtuple *t)
{
        Ndbtuple *tn;

        for(; t; t = tn){
                tn = t->entry;
                if(t->val != t->valbuf){
                        free(t->val);
                }
                free(t);
        }
}

/*
 *  set a value in a tuple
 */
void
ndbsetval(Ndbtuple *t, char *val, int n)
{
        if(n < Ndbvlen){
                if(t->val != t->valbuf){
                        free(t->val);
                        t->val = t->valbuf;
                }
        } else {
                if(t->val != t->valbuf)
                        t->val = realloc(t->val, n+1);
                else
                        t->val = malloc(n+1);
                if(t->val == nil)
                        sysfatal("ndbsetval %r");
        }
        strncpy(t->val, val, n);
        t->val[n] = 0;
}

/*
 *  allocate a tuple
 */
Ndbtuple*
ndbnew(char *attr, char *val)
{
        Ndbtuple *t;

        t = mallocz(sizeof(*t), 1);
        if(t == nil)
                sysfatal("ndbnew %r");
        if(attr != nil)
                strncpy(t->attr, attr, sizeof(t->attr)-1);
        t->val = t->valbuf;
        if(val != nil)
                ndbsetval(t, val, strlen(val));
        ndbsetmalloctag(t, getcallerpc(&attr));
        return t;       
}

/*
 *  set owner of a tuple
 */
void
ndbsetmalloctag(Ndbtuple *t, uintptr tag)
{
        for(; t; t=t->entry)
                setmalloctag(t, tag);
}