aros/aros_compat.c

   1 /*
   2    Copyright (C) 2013 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as published by
   6    the Free Software Foundation; either version 2.1 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #ifdef AROS
  19
  20 #include <sys/types.h>
  21 #include <sys/time.h>
  22 #include "aros_compat.h"
  23
  24 #undef poll
  25
  26 /* unix device major/minor numbers dont make much sense on amiga */
  27 int major(int i)
  28 {
  29   return 1;
  30 }
  31 int minor(int i)
  32 {
  33   return 2;
  34 }
  35
  36 int aros_poll(struct pollfd *fds, unsigned int nfds, int timo)
  37 {
  38   struct timeval timeout, *toptr;
  39   fd_set ifds, ofds, efds, *ip, *op;
  40   unsigned int i;
  41   int  rc;
  42
  43   // Set up the file-descriptor sets in ifds, ofds and efds.
  44   FD_ZERO(&ifds);
  45   FD_ZERO(&ofds);
  46   FD_ZERO(&efds);
  47   for (i = 0, op = ip = 0; i < nfds; ++i)
  48   {
  49     fds[i].revents = 0;
  50     if(fds[i].events & (POLLIN|POLLPRI))
  51     {
  52       ip = &ifds;
  53       FD_SET(fds[i].fd, ip);
  54     }
  55     if(fds[i].events & POLLOUT)
  56     {
  57       op = &ofds;
  58       FD_SET(fds[i].fd, op);
  59     }
  60     FD_SET(fds[i].fd, &efds);
  61   }
  62
  63   // Set up the timeval structure for the timeout parameter
  64   if(timo < 0)
  65   {
  66     toptr = 0;
  67   }
  68   else
  69   {
  70     toptr = &timeout;
  71     timeout.tv_sec = timo / 1000;
  72     timeout.tv_usec = (timo - timeout.tv_sec * 1000) * 1000;
  73   }
  74
  75   rc = select(0, ip, op, &efds, toptr);
  76
  77   if(rc <= 0)
  78     return rc;
  79
  80   if(rc > 0)
  81   {
  82     for (i = 0; i < nfds; ++i)
  83     {
  84       int fd = fds[i].fd;
  85       if(fds[i].events & (POLLIN|POLLPRI) && FD_ISSET(fd, &ifds))
  86         fds[i].revents |= POLLIN;
  87       if(fds[i].events & POLLOUT && FD_ISSET(fd, &ofds))
  88         fds[i].revents |= POLLOUT;
  89       if(FD_ISSET(fd, &efds)) // Some error was detected ... should be some way to know.
  90         fds[i].revents |= POLLHUP;
  91     }
  92   }
  93   return rc;
  94 }
  95
  96 #endif