121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/****************************************************************************
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* mm/iob/iob_statistics.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/types.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/mm/iob.h>
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_FS_PROCFS) && \
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!defined(CONFIG_FS_PROCFS_EXCLUDE_IOBINFO)
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/****************************************************************************
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* Private Data
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****************************************************************************/
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struct iob_userstats_s g_iobuserstats[IOBUSER_NENTRIES];
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: iob_stats_onalloc
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*
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* Description:
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* An IOB has just been allocated for the consumer. This is a hook for the
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* IOB statistics to be updated when /proc/iobinfo is enabled.
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*
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* Input Parameters:
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* consumerid - id representing who is consuming the IOB
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void iob_stats_onalloc(enum iob_user_e consumerid)
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{
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DEBUGASSERT(consumerid < IOBUSER_NENTRIES);
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g_iobuserstats[consumerid].totalconsumed++;
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/* Increment the global statistic as well */
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g_iobuserstats[IOBUSER_GLOBAL].totalconsumed++;
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}
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/****************************************************************************
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* Name: iob_stats_onfree
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*
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* Description:
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* An IOB has just been freed by the producer. This is a hook for the
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* IOB statistics to be updated when /proc/iobinfo is enabled.
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*
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* Input Parameters:
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* consumerid - id representing who is consuming the IOB
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void iob_stats_onfree(enum iob_user_e producerid)
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{
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DEBUGASSERT(producerid < IOBUSER_NENTRIES);
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g_iobuserstats[producerid].totalproduced++;
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/* Increment the global statistic as well */
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g_iobuserstats[IOBUSER_GLOBAL].totalproduced++;
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}
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/****************************************************************************
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* Name: iob_getuserstats
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*
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* Description:
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* Return a reference to the IOB usage statistics for the IOB
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* consumer/producer
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*
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* Input Parameters:
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* userid - id representing the IOB producer/consumer
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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FAR struct iob_userstats_s * iob_getuserstats(enum iob_user_e userid)
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{
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DEBUGASSERT(userid < IOBUSER_NENTRIES);
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return &g_iobuserstats[userid];
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}
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#endif /* !CONFIG_DISABLE_MOUNTPOINT && CONFIG_FS_PROCFS &&
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* !CONFIG_FS_PROCFS_EXCLUDE_IOBINFO */
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