skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
git clone https://ccx.te2000.cz/git/skalibs
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cdbmake_addv.c (840B)

      1 /* ISC license. */
      2 
      3 #include <errno.h>
      4 #include <sys/uio.h>
      5 
      6 #include <skalibs/uint32.h>
      7 #include <skalibs/diuint32.h>
      8 #include <skalibs/buffer.h>
      9 #include <skalibs/genalloc.h>
     10 #include <skalibs/siovec.h>
     11 #include <skalibs/cdbmake.h>
     12 #include "cdb-internal.h"
     13 #include "cdbmake-internal.h"
     14 
     15 int cdbmake_addv (cdbmaker *c, struct iovec const *kv, unsigned int kn, struct iovec const *dv, unsigned int dn)
     16 {
     17   size_t keylen = siovec_len(kv, kn) ;
     18   size_t datalen = siovec_len(dv, dn) ;
     19   if (keylen > UINT32_MAX || datalen > UINT32_MAX) return (errno = EOVERFLOW, 0) ;
     20 
     21   if (!cdbmake_addbegin(c, keylen, datalen)
     22    || buffer_putv(&c->b, kv, kn) < keylen
     23    || buffer_putv(&c->b, dv, dn) < datalen
     24    || !cdbmake_addend(c, keylen, datalen, cdb_hashv(kv, kn)))
     25   {
     26     genalloc_free(diuint32, &c->hplist) ;
     27     return 0 ;
     28   }
     29   return 1 ;
     30 }