* libs/libc/unistd/lib_pipe.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <unistd.h>
#if CONFIG_DEV_PIPE_SIZE > 0
* Public Functions
****************************************************************************/
* Name: pipe
*
* Description:
* pipe() creates a pair of file descriptors, pointing to a pipe inode,
* and places them in the array pointed to by 'fd'. fd[0] is for reading,
* fd[1] is for writing.
*
* Input Parameters:
* fd[2] - The user provided array in which to catch the pipe file
* descriptors
*
* Returned Value:
* 0 is returned on success; -1 (ERROR) is returned on a failure
* with the errno value set appropriately.
*
****************************************************************************/
int pipe(int fd[2])
{
return pipe2(fd, 0);
}
#endif