src/SBufStatsAction.cc

   1 /*
   2  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   3  * ----------------------------------------------------------
   4  *
   5  *  Squid is the result of efforts by numerous individuals from
   6  *  the Internet community; see the CONTRIBUTORS file for full
   7  *  details.   Many organizations have provided support for Squid's
   8  *  development; see the SPONSORS file for full details.  Squid is
   9  *  Copyrighted (C) 2001 by the Regents of the University of
  10  *  California; see the COPYRIGHT file for full details.  Squid
  11  *  incorporates software developed and/or copyrighted by other
  12  *  sources; see the CREDITS file for full details.
  13  *
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License as published by
  16  *  the Free Software Foundation; either version 2 of the License, or
  17  *  (at your option) any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful,
  20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23  *
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software
  26  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  27  */
  28
  29 #include "squid.h"
  30 #include "ipc/Messages.h"
  31 #include "ipc/TypedMsgHdr.h"
  32 #include "mgr/Registration.h"
  33 #include "SBufDetailedStats.h"
  34 #include "SBufStatsAction.h"
  35 #include "StoreEntryStream.h"
  36
  37 SBufStatsAction::SBufStatsAction(const Mgr::CommandPointer &cmd_):
  38         Action(cmd_)
  39 { } //default constructor is OK for data member
  40
  41 SBufStatsAction::Pointer
  42 SBufStatsAction::Create(const Mgr::CommandPointer &cmd)
  43 {
  44     return new SBufStatsAction(cmd);
  45 }
  46
  47 void
  48 SBufStatsAction::add(const Mgr::Action& action)
  49 {
  50     sbdata += dynamic_cast<const SBufStatsAction&>(action).sbdata;
  51     mbdata += dynamic_cast<const SBufStatsAction&>(action).mbdata;
  52     sbsizesatdestruct += dynamic_cast<const SBufStatsAction&>(action).sbsizesatdestruct;
  53     mbsizesatdestruct += dynamic_cast<const SBufStatsAction&>(action).mbsizesatdestruct;
  54 }
  55
  56 void
  57 SBufStatsAction::collect()
  58 {
  59     sbdata = SBuf::GetStats();
  60     mbdata = MemBlob::GetStats();
  61     sbsizesatdestruct = *collectSBufDestructTimeStats();
  62     mbsizesatdestruct = *collectMemBlobDestructTimeStats();
  63 }
  64
  65 void
  66 SBufStatsAction::dump(StoreEntry* entry)
  67 {
  68     StoreEntryStream ses(entry);
  69     ses << "\n\n\nThese statistics are experimental; their format and contents "
  70     "should not be relied upon, they are bound to change as "
  71     "the SBuf feature is evolved\n";
  72     sbdata.dump(ses);
  73     mbdata.dump(ses);
  74     ses << "\n";
  75     ses << "SBuf size distribution at destruct time:\n";
  76     sbsizesatdestruct.dump(entry,NULL);
  77     ses << "MemBlob size distribution at destruct time:\n";
  78     mbsizesatdestruct.dump(entry,NULL);
  79 }
  80
  81 void
  82 SBufStatsAction::pack(Ipc::TypedMsgHdr& msg) const
  83 {
  84     msg.setType(Ipc::mtCacheMgrResponse);
  85     msg.putPod(sbdata);
  86     msg.putPod(mbdata);
  87 }
  88
  89 void
  90 SBufStatsAction::unpack(const Ipc::TypedMsgHdr& msg)
  91 {
  92     msg.checkType(Ipc::mtCacheMgrResponse);
  93     msg.getPod(sbdata);
  94     msg.getPod(mbdata);
  95 }
  96
  97 static const bool Registered = (Mgr::RegisterAction("sbuf",
  98                                 "String-Buffer statistics", &SBufStatsAction::Create, 0 , 1),
  99                                 true);