src/base/RunnersRegistry.cc

   1 /*
   2  * Copyright (C) 1996-2016 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #include "squid.h"
  10 #include "base/RunnersRegistry.h"
  11 #include <set>
  12
  13 /// a collection of unique runners, in no particular order
  14 typedef std::set<RegisteredRunner*> Runners;
  15 /// all known runners
  16 static Runners *TheRunners = NULL;
  17
  18 /// safely returns registered runners, initializing structures as needed
  19 static Runners &
  20 GetRunners()
  21 {
  22     if (!TheRunners)
  23         TheRunners = new Runners;
  24     return *TheRunners;
  25 }
  26
  27 int
  28 RegisterRunner(RegisteredRunner *rr)
  29 {
  30     Runners &runners = GetRunners();
  31     runners.insert(rr);
  32     return runners.size();
  33 }
  34
  35 int
  36 DeregisterRunner(RegisteredRunner *rr)
  37 {
  38     Runners &runners = GetRunners();
  39     runners.erase(rr);
  40     return runners.size();
  41 }
  42
  43 void
  44 RunRegistered(const RegisteredRunner::Method &m)
  45 {
  46     Runners &runners = GetRunners();
  47     typedef Runners::iterator RRI;
  48     for (RRI i = runners.begin(); i != runners.end(); ++i)
  49         ((*i)->*m)();
  50
  51     if (m == &RegisteredRunner::finishShutdown) {
  52         delete TheRunners;
  53         TheRunners = NULL;
  54     }
  55 }
  56
  57 bool
  58 UseThisStatic(const void *)
  59 {
  60     return true;
  61 }
  62