5bf24a15b5
Summary: Since there is a default definition for CONFIG_SMP_NCPUS in sys/types.h, we can remove #ifdef and return CONFIG_SMP_NCPUS directly. Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
80 lines
3.0 KiB
C
80 lines
3.0 KiB
C
/****************************************************************************
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* libs/libc/misc/lib_getnprocs.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 <sys/sysinfo.h>
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#include <sys/types.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: get_nprocs_conf
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*
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* Description:
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* Retrieve the number of configured processors in the system.
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* The get_nprocs_conf() function returns the number of processors (CPUs)
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* configured in the system, regardless of whether they are currently
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* enabled or available. This function is useful for determining the
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* processor configuration in multiprocessor systems.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* On success, the number of configured processors is returned.
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* If the system does not define a processor configuration, it returns 1.
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*
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****************************************************************************/
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int get_nprocs_conf(void)
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{
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return CONFIG_SMP_NCPUS;
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}
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/****************************************************************************
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* Name: get_nprocs
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*
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* Description:
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* Retrieve the number of online processors in the system.
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* The get_nprocs() function returns the number of processors (CPUs) that
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* are currently online and available for use in the system. This function
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* can be useful for determining the number of processors that can be used
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* by applications or the operating system for parallel processing.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* On success, the number of online processors is returned.
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* If the system does not define a processor configuration, it returns 1.
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*
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****************************************************************************/
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int get_nprocs(void)
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{
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return CONFIG_SMP_NCPUS;
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}
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