libace-tmcast-dev 6.3.3+dfsg-1 / usr / include / ace / TMCast / MTQueue.hpp

This file is indexed.

/usr/include/ace/TMCast/MTQueue.hpp is in libace-tmcast-dev 6.3.3+dfsg-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
// author    : Boris Kolpackov <boris@dre.vanderbilt.edu>

#ifndef TMCAST_MT_QUEUE_HPP
#define TMCAST_MT_QUEUE_HPP

#include "ace/Auto_Ptr.h"
#include "ace/Unbounded_Set.h"
#include "ace/Unbounded_Queue.h"
#include "ace/os_include/sys/os_types.h"
#include "ace/Condition_T.h"

namespace ACE_TMCast
{
  template <typename T,
            typename M,
            typename C,
            typename Q = ACE_Unbounded_Queue<T> >
  class MTQueue
  {
  public:
    typedef T ElementType;
    typedef M MutexType;
    typedef C ConditionalType;
    typedef Q QueueType;

  public:

    MTQueue ()
        : mutexp_ (new MutexType),
          mutex_ (*mutexp_),
          queue_ (),
          signal_ (false)
    {
    }

    MTQueue (MutexType& mutex)
        : mutexp_ (),
          mutex_ (mutex),
          queue_ (),
          signal_ (false)
    {
    }

  public:
    bool
    empty () const
    {
      return queue_.is_empty ();
    }

    size_t
    size () const
    {
      return queue_.size ();
    }

    // typedef typename QueueType::Empty Empty;

    class Empty {};

    T&
    front ()
    {
      ACE_Unbounded_Queue_Iterator<T> f (queue_);
      T* tmp;
      if (!f.next (tmp)) throw Empty ();

      return *tmp;
    }


    T const&
    front () const
    {
      ACE_Unbounded_Queue_Const_Iterator<T> f (queue_);
      T* tmp;
      if (!f.next (tmp)) throw Empty ();

      return *tmp;
    }

    /*
      T&
      back ()
      {
      return queue_.back ();
      }


      T const&
      back () const
      {
      return queue_.back ();
      }
    */

    void
    push (T const& t)
    {
      signal_ = empty ();
      queue_.enqueue_tail (t);
    }

    void
    pop ()
    {
      T junk;
      queue_.dequeue_head (junk);
    }

  public:
    void
    lock () const
    {
      mutex_.acquire ();
    }

    void
    unlock () const
    {
      if (signal_)
      {
        signal_ = false;

        for (ConditionalSetConstIterator_ i (cond_set_);
             !i.done ();
             i.advance ())
        {
          ConditionalType** c = 0;

          i.next (c);

          (*c)->signal ();
        }
      }

      mutex_.release ();
    }

    void
    subscribe (ConditionalType& c)
    {
      //@@ should check for duplicates
      //
      cond_set_.insert (&c);
    }

    void
    unsubscribe (ConditionalType& c)
    {
      //@@ should check for absence
      //
      cond_set_.remove (&c);
    }

  private:
    auto_ptr<MutexType> mutexp_;
    MutexType& mutex_;
    QueueType queue_;

    typedef
    ACE_Unbounded_Set<ConditionalType*>
    ConditionalSet_;

    typedef
    ACE_Unbounded_Set_Const_Iterator<ConditionalType*>
    ConditionalSetConstIterator_;

    ConditionalSet_ cond_set_;

    mutable bool signal_;
  };
}

#endif // TMCAST_MT_QUEUE_HPP

APT Browse - Built by Thomas Orozco.