src/ipc/Kids.h

   1 /*
   2  * Copyright (C) 1996-2015 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 #ifndef SQUID_IPC_KIDS_H
  10 #define SQUID_IPC_KIDS_H
  11
  12 #include "ipc/Kid.h"
  13
  14 #include <vector>
  15
  16 /// a collection of kids
  17 class Kids
  18 {
  19 public:
  20     Kids ();
  21
  22 private:
  23     Kids (const Kids&); ///< not implemented
  24     Kids& operator= (const Kids&); ///< not implemented
  25
  26 public:
  27     /// initialize all kid records based on Config
  28     void init();
  29
  30     /// returns kid by pid
  31     Kid* find(pid_t pid);
  32
  33     /// returns the kid by index, useful for kids iteration
  34     Kid& get(size_t i);
  35
  36     /// whether all kids are hopeless
  37     bool allHopeless() const;
  38
  39     /// whether all kids called exited happy
  40     bool allExitedHappy() const;
  41
  42     /// whether some kids died from a given signal
  43     bool someSignaled(const int sgnl) const;
  44
  45     /// whether some kids are running
  46     bool someRunning() const;
  47
  48     /// whether some kids should be restarted by master
  49     bool shouldRestartSome() const;
  50
  51     /// returns the number of kids
  52     size_t count() const;
  53
  54 private:
  55     std::vector<Kid> storage;
  56 };
  57
  58 extern Kids TheKids; ///< All kids being maintained
  59
  60 typedef char KidName[64]; ///< Squid process name (e.g., "squid-coord")
  61 extern KidName TheKidName; ///< current Squid process name
  62
  63 #endif /* SQUID_IPC_KIDS_H */
  64