64 lines
2.5 KiB
C
64 lines
2.5 KiB
C
/****************************************************************************
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* libs/libc/unistd/lib_getrusage.c
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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 <string.h>
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#include <errno.h>
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#include <sys/resource.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: getrusage
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*
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* Description:
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* The getrusage() function shall provide measures of the resources used
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* by the current process or its terminated and waited-for child processes.
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* If the value of the who argument is RUSAGE_SELF, information shall be
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* returned about resources used by the current process. If the value of
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* the who argument is RUSAGE_CHILDREN, information shall be returned
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* about resources used by the terminated and waited-for children of the
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* current process. If the child is never waited for (for example, if the
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* parent has SA_NOCLDWAIT set or sets SIGCHLD to SIG_IGN), the resource
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* information for the child process is discarded and not included in the
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* resource information provided by getrusage().
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*
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****************************************************************************/
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int getrusage(int who, FAR struct rusage *r_usage)
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{
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if (r_usage == NULL)
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{
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set_errno(EINVAL);
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return ERROR;
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}
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memset(r_usage, 0, sizeof(*r_usage));
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return OK;
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}
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