incubator-nuttx/libs/libc/unistd/lib_getoptvars.c

76 lines
2.3 KiB
C

/****************************************************************************
* libs/libc/unistd/lib_getoptvars.c
*
* 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 <assert.h>
#include "unistd.h"
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
/* Data is naturally process-specific in the KERNEL build so no special
* access to process-specific global data is needed.
*/
FAR struct getopt_s g_getopt_vars =
{
NULL,
0,
1,
'?',
NULL,
false
};
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: getoptvars
*
* Description:
* Returns a pointer to to the thread-specific getopt() data.
*
****************************************************************************/
FAR struct getopt_s *getoptvars(void)
{
#ifndef CONFIG_BUILD_KERNEL
FAR struct task_info_s *info;
/* Get the structure of getopt() variables using the key. */
info = task_get_info();
DEBUGASSERT(info != NULL);
return &info->ta_getopt;
#else
return &g_getopt_vars;
#endif
}