cosmopolitan/libc/sock/kntwsadata.c
Justine Tunney 933411ba99 Improve synchronization
- 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
2022-04-15 15:31:55 -07:00

61 lines
2.9 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/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/strace.internal.h"
#include "libc/dce.h"
#include "libc/mem/mem.h"
#include "libc/nt/runtime.h"
#include "libc/nt/winsock.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/internal.h"
#define VERSION 0x0202 /* Windows Vista+ */
/**
* Information about underyling Windows Sockets implemmentation.
*
* Cosmopolitan automatically calls YOINK() on this symbol when its
* Berkeley Socket wrappers are linked. The latest version of Winsock
* was introduced alongside x64, so this should never fail.
*/
hidden struct NtWsaData kNtWsaData;
static textwindows void WinSockCleanup(void) {
int i, rc;
STRACE("WinSockCleanup()");
for (i = g_fds.n; i--;) {
if (g_fds.p[i].kind == kFdSocket) {
close(i);
}
}
// TODO(jart): Check WSACleanup() result code
rc = WSACleanup();
STRACE("WSACleanup() → %d% lm", rc);
}
textwindows noasan void WinSockInit(void) {
int rc;
atexit(WinSockCleanup);
STRACE("WSAStartup()");
if ((rc = WSAStartup(VERSION, &kNtWsaData)) != 0 ||
kNtWsaData.wVersion != VERSION) {
ExitProcess(123);
}
}