libdirectfb-dev 1.7.7-8 / usr / include / directfb / direct / LockWQ.h

This file is indexed.

/usr/include/directfb/direct/LockWQ.h is in libdirectfb-dev 1.7.7-8.

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
/*
   (c) Copyright 2012-2013  DirectFB integrated media GmbH
   (c) Copyright 2001-2013  The world wide DirectFB Open Source Community (directfb.org)
   (c) Copyright 2000-2004  Convergence (integrated media) GmbH

   All rights reserved.

   Written by Denis Oliver Kropp <dok@directfb.org>,
              Andreas Shimokawa <andi@directfb.org>,
              Marek Pikarski <mass@directfb.org>,
              Sven Neumann <neo@directfb.org>,
              Ville Syrjälä <syrjala@sci.fi> and
              Claudio Ciccani <klan@users.sf.net>.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/



#ifndef ___Direct__LockWQ__H___
#define ___Direct__LockWQ__H___

#include <direct/Types++.h>

#ifdef __cplusplus
extern "C" {
#endif

#include <direct/os/mutex.h>
#include <direct/os/waitqueue.h>


#ifdef __cplusplus
}



namespace Direct {


class LockWQ
{
public:
     LockWQ()
     {
          direct_mutex_init( &mutex );
          direct_waitqueue_init( &wq );
     }

     ~LockWQ()
     {
          direct_mutex_deinit( &mutex );
          direct_waitqueue_deinit( &wq );
     }

     void lock()
     {
          direct_mutex_lock( &mutex );
     }

     void unlock()
     {
          direct_mutex_unlock( &mutex );
     }

     DirectResult wait( unsigned long timeout_us = 0 )
     {
          if (timeout_us > 0)
               return direct_waitqueue_wait_timeout( &wq, &mutex, timeout_us );

          return direct_waitqueue_wait( &wq, &mutex );
     }

     void notify()
     {
          direct_waitqueue_signal( &wq );
     }

     void notifyAll()
     {
          direct_waitqueue_broadcast( &wq );
     }

     class Lock {
     public:
          Lock( LockWQ &lwq )
               :
               lwq( lwq ),
               unlocked( false )
          {
               lwq.lock();
          }

          ~Lock()
          {
               if (!unlocked)
                    lwq.unlock();
          }

          DirectResult wait( unsigned long timeout_us = 0 )
          {
               return lwq.wait( timeout_us );
          }

          void unlock()
          {
               unlocked = true;

               lwq.unlock();
          }

     private:
          LockWQ &lwq;
          bool    unlocked;
     };

private:
     DirectMutex     mutex;
     DirectWaitQueue wq;
};


}


#endif // __cplusplus

#endif

APT Browse - Built by Thomas Orozco.