nfs_stat_mgmt.c

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/*
 * vim:expandtab:shiftwidth=8:tabstop=8:
 *
 * Copyright CEA/DAM/DIF  (2008)
 * contributeur : Philippe DENIEL   philippe.deniel@cea.fr
 *                Thomas LEIBOVICI  thomas.leibovici@cea.fr
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * ---------------------------------------
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef _SOLARIS
#include "solaris_port.h"
#endif

#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <fcntl.h>
#include <sys/file.h>           /* for having FNDELAY */
#include "HashData.h"
#include "HashTable.h"
#include "log.h"
#include "ganesha_rpc.h"
#include "nfs23.h"
#include "nfs4.h"
#include "mount.h"
#include "nfs_core.h"
#include "cache_inode.h"
#include "nfs_exports.h"
#include "nfs_creds.h"
#include "nfs_proto_functions.h"
#include "nfs_tools.h"
#include "nfs_proto_tools.h"
#include "nfs_stat.h"

void nfs_stat_update(nfs_stat_type_t type,
                     nfs_request_stat_t * pstat_req, struct svc_req *preq,
                     nfs_request_latency_stat_t * lstat_req)
{
  nfs_request_stat_item_t *pitem = NULL;
  int up_counter = 1;

  /* Don't increase counters when updating await time. */
  if(lstat_req->type == AWAIT_TIME)
    {
      up_counter = 0;
    }

  if(preq->rq_prog == nfs_param.core_param.program[P_NFS])
    {
      switch (preq->rq_vers)
        {
        case NFS_V2:
          pitem = &pstat_req->stat_req_nfs2[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_nfs2_req += 1;
          break;

        case NFS_V3:
          pitem = &pstat_req->stat_req_nfs3[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_nfs3_req += 1;
          break;

        case NFS_V4:
          pitem = &pstat_req->stat_req_nfs4[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_nfs4_req += 1;

          break;

        default:
          /* Bad vers ? */
          LogCrit(COMPONENT_DISPATCH,
               "IMPLEMENTATION ERROR: /!\\ | you should never step here file %s, line %d",
               __FILE__, __LINE__);
          return;
        }
    }
  else if(preq->rq_prog == nfs_param.core_param.program[P_MNT])
    {
      switch (preq->rq_vers)
        {
        case MOUNT_V1:
          pitem = &pstat_req->stat_req_mnt1[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_mnt1_req += 1;
          break;

        case MOUNT_V3:
          pitem = &pstat_req->stat_req_mnt3[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_mnt3_req += 1;
          break;

        default:
          /* Bad vers ? */
          LogCrit(COMPONENT_DISPATCH,
               "IMPLEMENTATION ERROR: /!\\ | you should never step here file %s, line %d",
               __FILE__, __LINE__);
          return;
        }
    }
#ifdef _USE_NLM
  else if(preq->rq_prog == nfs_param.core_param.program[P_NLM])
    {
      switch (preq->rq_vers)
        {
        case NLM4_VERS:
          pitem = &pstat_req->stat_req_nlm4[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_nlm4_req += 1;
          break;
        default:
          /* Bad vers ? */
          LogCrit(COMPONENT_DISPATCH,
               "IMPLEMENTATION ERROR: /!\\ | you should never step here file %s, line %d",
               __FILE__, __LINE__);
          return;
        }
    }
#endif
#ifdef _USE_RQUOTA
  else if(preq->rq_prog == nfs_param.core_param.program[P_RQUOTA])
    {
      switch (preq->rq_vers)
        {
        case RQUOTAVERS:
          pitem = &pstat_req->stat_req_rquota1[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_rquota1_req += 1;
          break;
        case EXT_RQUOTAVERS:
          pitem = &pstat_req->stat_req_rquota2[preq->rq_proc];
          if(up_counter)
            pstat_req->nb_rquota2_req += 1;
          break;
        default:
          /* Bad vers ? */
          LogCrit(COMPONENT_DISPATCH,
               "IMPLEMENTATION ERROR: /!\\ | you should never step here file %s, line %d",
               __FILE__, __LINE__);
          return;
        }

    }
#endif
  else
    {
      /* Bad program ? */
      LogCrit(COMPONENT_DISPATCH,
           "IMPLEMENTATION ERROR: /!\\ | you should never step here file %s, line %d",
           __FILE__, __LINE__);
      return;
    }

  if(up_counter)
    pitem->total += 1;

  if(lstat_req->type == SVC_TIME)
    {
      /* Set the initial value of latencies */
      if(pitem->tot_latency == 0)
        {
          pitem->max_latency = lstat_req->latency;
          pitem->min_latency = lstat_req->latency;
        }

      /* Update total, min and max latency */
      pitem->tot_latency += lstat_req->latency;
      if(lstat_req->latency > pitem->max_latency)
        {
          pitem->max_latency = lstat_req->latency;
        }
      else if(lstat_req->latency < pitem->min_latency)
        {
          pitem->min_latency = lstat_req->latency;
        }
    }
  else if(lstat_req->type == AWAIT_TIME)
    {
      pitem->tot_await_time += lstat_req->latency;
    }

  switch (type)
    {
    case GANESHA_STAT_SUCCESS:
      if(up_counter)
        pitem->success += 1;
      break;

    case GANESHA_STAT_DROP:
      if(up_counter)
        pitem->dropped += 1;
      break;

    default:
      /* Bad type ? */
      LogCrit(COMPONENT_DISPATCH,
           "IMPLEMENTATION ERROR: /!\\ | you should never step here file %s, line %u",
           __FILE__, __LINE__);
      break;
    }

  return;

}                               /* nfs_stat_update */