skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
git clone https://ccx.te2000.cz/git/skalibs
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openwritevnclose_at.c (472B)

      1 /* ISC license. */
      2 
      3 #include <sys/uio.h>
      4 #include <unistd.h>
      5 
      6 #include <skalibs/allreadwrite.h>
      7 #include <skalibs/siovec.h>
      8 #include <skalibs/djbunix.h>
      9 #include <skalibs/unix-transactional.h>
     10 
     11 size_t openwritevnclose_at (int dirfd, char const *file, struct iovec const *v, unsigned int n)
     12 {
     13   size_t r ;
     14   int fd = openc_truncatb(dirfd, file) ;
     15   if (fd < 0) return 0 ;
     16   r = allwritev(fd, v, n) ;
     17   if (r >= siovec_len(v, n)) fsync(fd) ;
     18   fd_close(fd) ;
     19   return r ;
     20 }