cosmopolitan/libc/sock/socketpair.c
Justine Tunney 4177489762 Perform fine-tuning of socketpair and pipe
- removed unneeded share parameter from pipe on nt
- socktpair(type | SOCK_CLOEXEC) is now polyfilled
- use textwindows for linker micro-optimization
- apologies for auto clang-format diff noise :(
- improve socketpair docstring

See #122
2021-03-16 22:44:54 -07:00

42 lines
2.5 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/dce.h"
#include "libc/sock/internal.h"
#include "libc/sock/sock.h"
#include "libc/sysv/consts/af.h"
/**
* Creates bidirectional pipe.
*
* @param family should be AF_UNIX or synonymously AF_LOCAL
* @param type may be or'd with SOCK_CLOEXEC
* @param sv a vector of 2 integers to store the created sockets
* @return 0 if success, -1 in case of error
* @error EFAULT, EPFNOSUPPORT, etc.
* @see libc/sysv/consts.sh
* @asyncsignalsafe
*/
int socketpair(int family, int type, int protocol, int sv[2]) {
if (family == AF_UNSPEC) family = AF_UNIX;
if (!IsWindows()) {
return sys_socketpair(family, type, protocol, sv);
} else {
return sys_socketpair_nt(family, type, protocol, sv);
}
}