1//===-- Linux implementation of tcflow -----------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/termios/tcflow.h"
10
11#include "src/__support/OSUtil/syscall.h"
12#include "src/__support/common.h"
13#include "src/errno/libc_errno.h"
14
15#include <asm/ioctls.h> // Safe to include without the risk of name pollution.
16#include <sys/syscall.h> // For syscall numbers
17#include <termios.h>
18
19namespace LIBC_NAMESPACE {
20
21LLVM_LIBC_FUNCTION(int, tcflow, (int fd, int action)) {
22 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_ioctl, ts: fd, TCXONC, ts: action);
23 if (ret < 0) {
24 libc_errno = -ret;
25 return -1;
26 }
27 return 0;
28}
29
30} // namespace LIBC_NAMESPACE
31

source code of libc/src/termios/linux/tcflow.cpp