ref: 66719fb3ea15351f8860cc6696993357a60ab238
dir: /sys/src/libndb/ndbfree.c/
#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); }