mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 12:03:41 +00:00
933411ba99
- Fix bugs in kDos2Errno definition - malloc() should now be thread safe - Fix bug in rollup.com header generator - Fix open(O_APPEND) on the New Technology - Fix select() on the New Technology and test it - Work towards refactoring i/o for thread safety - Socket reads and writes on NT now poll for signals - Work towards i/o completion ports on the New Technology - Make read() and write() intermittently check for signals - Blinkenlights keyboard i/o so much better on NT w/ poll() - You can now poll() files and sockets at the same time on NT - Fix bug in appendr() that manifests with dlmalloc footers off
50 lines
2.8 KiB
C
50 lines
2.8 KiB
C
/*-*- 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 │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/assert.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/nt/winsock.h"
|
|
#include "libc/sock/internal.h"
|
|
#include "libc/sock/sock.h"
|
|
#include "libc/str/str.h"
|
|
|
|
textwindows int64_t __winsockblock(int64_t fh, unsigned eventbit, int64_t rc) {
|
|
int64_t eh;
|
|
struct NtWsaNetworkEvents ev;
|
|
if (rc != -1) return rc;
|
|
if (WSAGetLastError() != EWOULDBLOCK) return __winsockerr();
|
|
eh = WSACreateEvent();
|
|
bzero(&ev, sizeof(ev));
|
|
/* The proper way to reset the state of an event object used with the
|
|
WSAEventSelect function is to pass the handle of the event object
|
|
to the WSAEnumNetworkEvents function in the hEventObject parameter.
|
|
This will reset the event object and adjust the status of active FD
|
|
events on the socket in an atomic fashion. -- MSDN */
|
|
if (WSAEventSelect(fh, eh, 1u << eventbit) != -1 &&
|
|
WSAEnumNetworkEvents(fh, eh, &ev) != -1) {
|
|
if (!ev.iErrorCode[eventbit]) {
|
|
rc = 0;
|
|
} else {
|
|
errno = ev.iErrorCode[eventbit];
|
|
}
|
|
} else {
|
|
__winsockerr();
|
|
}
|
|
WSACloseEvent(eh);
|
|
return rc;
|
|
}
|