mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-28 16:22:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Perform fine-tuning of socketpair and pipe

Browse source 
- 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
This commit is contained in:
Justine Tunney 2021-03-16 22:44:54 -07:00
parent 4e93750afd
commit 4177489762
11 changed files with 172 additions and 133 deletions
Download patch file Download diff file Expand all files Collapse all files

38
libc/sock/socketpair-sysv.c Normal file
View file

@ -0,0 +1,38 @@
/*-*- 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/errno.h"
#include "libc/sock/internal.h"
#include "libc/sysv/consts/sock.h"
int sys_socketpair(int family, int type, int protocol, int sv[2]) {
int e = errno;
if (__sys_socketpair(family, type, protocol, sv) != -1) return 0;
if ((type & (SOCK_CLOEXEC | SOCK_NONBLOCK)) &&
(errno == EINVAL || errno == EPROTOTYPE || errno == EPROTONOSUPPORT)) {
errno = e;
if (__sys_socketpair(family, type & ~(SOCK_CLOEXEC | SOCK_NONBLOCK),
protocol, sv) != -1) {
__fixupnewsockfd(sv[0], type);
__fixupnewsockfd(sv[1], type);
return 0;
}
}
return -1;
}