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71889ff22e
implement the ulimit() based on getrlimit/setrlimit function. the ulimit() function is requiredd by vsx testset Signed-off-by: guoshichao <guoshichao@xiaomi.com>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/****************************************************************************
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* libs/libc/unistd/lib_ulimit.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <errno.h>
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#include <ulimit.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ulimit
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*
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* Description:
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* The ulimit will make calls to getrlimit() and setrlimit() to perform
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* get and set resource limits respectively.
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*
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* Returned value:
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* On success, return a non-negative value.
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* On failure, return -1 and set the errno value.
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*
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****************************************************************************/
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long ulimit(int cmd, long newlimit)
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{
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long ret = ERROR;
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switch (cmd)
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{
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case UL_GETFSIZE:
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{
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struct rlimit rlp;
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getrlimit(RLIMIT_FSIZE, &rlp);
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ret = rlp.rlim_cur / 512UL;
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}
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break;
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case UL_SETFSIZE:
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{
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struct rlimit rlp;
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rlp.rlim_cur = newlimit * 512UL;
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ret = setrlimit(RLIMIT_FSIZE, &rlp);
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}
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break;
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default:
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set_errno(EINVAL);
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break;
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}
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return ret;
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}
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