lib/libdevdctl/event_factory.cc

   1 /*-
   2  * Copyright (c) 2013 Spectra Logic Corporation
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions, and the following disclaimer,
  10  *    without modification.
  11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  12  *    substantially similar to the "NO WARRANTY" disclaimer below
  13  *    ("Disclaimer") and any redistribution must be conditioned upon
  14  *    including a substantially similar Disclaimer requirement for further
  15  *    binary redistribution.
  16  *
  17  * NO WARRANTY
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGES.
  29  *
  30  * Authors: Justin T. Gibbs     (Spectra Logic Corporation)
  31  */
  32
  33 /**
  34  * \file event_factory.cc
  35  */
  36 #include <sys/cdefs.h>
  37 #include <sys/time.h>
  38
  39 #include <list>
  40 #include <map>
  41 #include <string>
  42
  43 #include "guid.h"
  44 #include "event.h"
  45 #include "event_factory.h"
  46
  47 __FBSDID("$FreeBSD$");
  48
  49 /*================================== Macros ==================================*/
  50 #define NUM_ELEMENTS(x) (sizeof(x) / sizeof(*x))
  51
  52 /*============================ Namespace Control =============================*/
  53 namespace DevdCtl
  54 {
  55
  56 /*=========================== Class Implementations ==========================*/
  57 /*------------------------------- EventFactory -------------------------------*/
  58 //- Event Public Methods -------------------------------------------------------
  59 EventFactory::EventFactory(Event::BuildMethod *defaultBuildMethod)
  60  : m_defaultBuildMethod(defaultBuildMethod)
  61 {
  62 }
  63
  64 void
  65 EventFactory::UpdateRegistry(Record regEntries[], size_t numEntries)
  66 {
  67         EventFactory::Record *rec(regEntries);
  68         EventFactory::Record *lastRec(rec + numEntries - 1);
  69
  70         for (; rec <= lastRec; rec++) {
  71                 Key key(rec->m_type, rec->m_subsystem);
  72
  73                 if (rec->m_buildMethod == NULL)
  74                         m_registry.erase(key);
  75                 else
  76                         m_registry[key] = rec->m_buildMethod;
  77         }
  78 }
  79
  80 Event *
  81 EventFactory::Build(Event::Type type, NVPairMap &nvpairs,
  82                     const std::string eventString) const
  83 {
  84         Key key(type, nvpairs["system"]);
  85         Event::BuildMethod *buildMethod(m_defaultBuildMethod);
  86
  87         Registry::const_iterator foundMethod(m_registry.find(key));
  88         if (foundMethod != m_registry.end())
  89                 buildMethod = foundMethod->second;
  90
  91         if (buildMethod == NULL) {
  92                 delete &nvpairs;
  93                 return (NULL);
  94         }
  95
  96         return (buildMethod(type, nvpairs, eventString));
  97 }
  98
  99 } // namespace DevdCtl