134 lines
4.6 KiB
C
134 lines
4.6 KiB
C
/****************************************************************************
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* net/procfs/netdev_statistics.c
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Author: Anthony Merlino <anthony@vergeeaero.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <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 statitics for the IOB 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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