2 * poll_posix: poll compatibility wrapper for POSIX systems
3 * Copyright © 2013 RealVNC Ltd.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 int usbi_pipe(int pipefd[2])
32 #if defined(HAVE_PIPE2)
33 int ret = pipe2(pipefd, O_CLOEXEC);
35 int ret = pipe(pipefd);
39 usbi_err(NULL, "failed to create pipe (%d)", errno);
43 #if !defined(HAVE_PIPE2) && defined(FD_CLOEXEC)
44 ret = fcntl(pipefd[0], F_GETFD);
46 usbi_err(NULL, "failed to get pipe fd flags (%d)", errno);
49 ret = fcntl(pipefd[0], F_SETFD, ret | FD_CLOEXEC);
51 usbi_err(NULL, "failed to set pipe fd flags (%d)", errno);
55 ret = fcntl(pipefd[1], F_GETFD);
57 usbi_err(NULL, "failed to get pipe fd flags (%d)", errno);
60 ret = fcntl(pipefd[1], F_SETFD, ret | FD_CLOEXEC);
62 usbi_err(NULL, "failed to set pipe fd flags (%d)", errno);
67 ret = fcntl(pipefd[1], F_GETFL);
69 usbi_err(NULL, "failed to get pipe fd status flags (%d)", errno);
72 ret = fcntl(pipefd[1], F_SETFL, ret | O_NONBLOCK);
74 usbi_err(NULL, "failed to set pipe fd status flags (%d)", errno);