cosmopolitan/libc/calls/pipe-nt.c

43 lines
2.6 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 │
│ │
│ 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/ipc.h"
#include "libc/nt/runtime.h"
#include "libc/sysv/consts/o.h"
textwindows int pipe$nt(int pipefd[2], unsigned flags) {
int reader, writer;
if ((reader = createfd()) == -1) return -1;
if ((writer = createfd()) == -1) return -1;
if (CreatePipe(&g_fds.p[reader].handle, &g_fds.p[writer].handle,
(flags & O_CLOEXEC) ? NULL : &kNtIsInheritable,
0 /* let NT pick buffer size */)) {
g_fds.p[reader].kind = kFdFile;
g_fds.p[reader].flags = flags;
g_fds.p[writer].kind = kFdFile;
g_fds.p[writer].flags = flags;
pipefd[0] = reader;
pipefd[1] = writer;
return 0;
} else {
return winerr();
}
}