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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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libc/sock/poll-nt.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/internal.h"
#include "libc/nt/struct/pollfd.h"
#include "libc/nt/winsock.h"
#include "libc/sock/internal.h"
#include "libc/sysv/consts/poll.h"
#include "libc/sysv/errfuns.h"
textwindows int poll$nt(struct pollfd *fds, uint64_t nfds, int32_t timeout_ms) {
int got;
size_t i;
struct pollfd$nt ntfds[64];
if (nfds > 64) return einval();
for (i = 0; i < nfds; ++i) {
if (!isfdkind(fds[i].fd, kFdSocket)) return ebadf();
ntfds[i].handle = g_fds.p[fds[i].fd].handle;
ntfds[i].events = fds[i].events & (POLLPRI | POLLIN | POLLOUT);
}
if ((got = WSAPoll(ntfds, nfds, timeout_ms)) != -1) {
for (i = 0; i < nfds; ++i) {
fds[i].revents = ntfds[i].revents;
}
return got;
} else {
return winsockerr();
}
}