runtime/basis/System/OS/IO/poll.c

   1 #include "platform.h"
   2
   3 C_Errno_t(C_Int_t)
   4 OS_IO_poll (Vector(C_Fd_t) fds,
   5             Vector(C_Short_t) eventss,
   6             C_NFds_t n,
   7             C_Int_t timeout,
   8             Array(C_Short_t) reventss) {
   9   unsigned int i;
  10   int res;
  11   struct pollfd ufds[n];
  12
  13   for (i = 0; i < n; i++) {
  14     ufds[i].fd = ((const int*)fds)[i];
  15     ufds[i].events = ((const short*)eventss)[i];
  16   }
  17   res = poll (ufds, n, timeout);
  18   for (i = 0; i < n; i++) {
  19     ((short*)reventss)[i] = ufds[i].revents;
  20   }
  21   return res;
  22 }