skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
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netstring_timed_get.c (565B)

      1 /* ISC license. */
      2 
      3 #include <errno.h>
      4 #include <skalibs/buffer.h>
      5 #include <skalibs/netstring.h>
      6 #include <skalibs/iopause.h>
      7 #include <skalibs/unix-timed.h>
      8 
      9 int netstring_timed_get (buffer *b, stralloc *sa, tain const *deadline, tain *stamp)
     10 {
     11   iopause_fd x = { .fd = buffer_fd(b), .events = IOPAUSE_READ } ;
     12   size_t w = 0 ;
     13   for (;;)
     14   {
     15     int r = netstring_get(b, sa, &w) ;
     16     if (r > 0) return r ;
     17     if (r < 0) return 0 ;
     18     r = iopause_stamp(&x, 1, deadline, stamp) ;
     19     if (r < 0) return 0 ;
     20     else if (!r) return (errno = ETIMEDOUT, 0) ;
     21   }
     22 }