writen.h File Reference

00050 {
00051   int nleft;
00052   long nwritten;
00053   char *ptr;
00054   double int_part;
00055   struct timeval timeout_tv;
00056   fd_set write_fd_set;
00057 
00058   timeout_tv.tv_sec = (long) _timeout;
00059   timeout_tv.tv_usec = (long) (_timeout * 1000000.0);
00060   if (timeout_tv.tv_usec >= 1000000)
00061     {
00062       timeout_tv.tv_usec = timeout_tv.tv_usec % 1000000;
00063     }
00064   FD_ZERO (&write_fd_set);
00065   RCS_FD_SET (fd, &write_fd_set);
00066 
00067   ptr = (char *) vptr;          /* can't do pointer arithmetic on void* */
00068   nleft = n;
00069   while (nleft > 0)
00070     {
00071       if (_timeout > 0.0)
00072         {
00073           switch (dl_select
00074                   (fd + 1, (fd_set *) NULL, &write_fd_set, (fd_set *) NULL,
00075                    &timeout_tv))
00076             {
00077             case -1:
00078               rcs_print_error ("Error in select: %d -> %s\n", errno,
00079                                strerror (errno));
00080               return -1;
00081 
00082             case 0:
00083               rcs_print_error ("Write timed out.\n");
00084               return -1;
00085 
00086             default:
00087               break;
00088             }
00089         }
00090       if ((nwritten = write (fd, ptr, nleft)) == -1)
00091         {
00092           rcs_print_error ("Write error: %d = %s", errno, strerror (errno));
00093           return (-1);          /* error */
00094         }
00095 
00096       nleft -= nwritten;
00097       ptr += nwritten;
00098     }
00099   return (n);
00100 }
writen.h File Reference

Functions

Function Documentation

Functions
int	writen (int fd, const void *vptr, int n, double timeout)