67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
|
/****************************************************************************
|
||
|
|
* libs/libc/signal/sig_nandset.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 <signal.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Public Functions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: nxsig_nandset
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* This function returns the intersection of the left set and the
|
||
|
|
* complement of the right set in dest.
|
||
|
|
*
|
||
|
|
* Input Parameters:
|
||
|
|
* dest - The location to store the result
|
||
|
|
* left - The uncomplemented set used in the intersection
|
||
|
|
* right - The set that will be complemented and used in the intersection
|
||
|
|
*
|
||
|
|
* Returned Value:
|
||
|
|
* This is an internal OS interface and should not be used by applications.
|
||
|
|
* It follows the NuttX internal error return policy: Zero (OK) is
|
||
|
|
* returned on success. A negated errno value is returned on failure.
|
||
|
|
*
|
||
|
|
* Assumptions:
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
int nxsig_nandset(FAR sigset_t *dest, FAR const sigset_t *left,
|
||
|
|
FAR const sigset_t *right)
|
||
|
|
{
|
||
|
|
int ndx;
|
||
|
|
|
||
|
|
/* Remove the signals in the right set from the left set */
|
||
|
|
|
||
|
|
for (ndx = 0; ndx < _SIGSET_NELEM; ndx++)
|
||
|
|
{
|
||
|
|
dest->_elem[ndx] = left->_elem[ndx] & ~right->_elem[ndx];
|
||
|
|
}
|
||
|
|
|
||
|
|
return OK;
|
||
|
|
}
|