LCOV - code coverage report
Current view: top level - eq - commandQueue.cpp (source / functions) Hit Total Coverage
Test: Equalizer Lines: 49 68 72.1 %
Date: 2016-09-29 05:02:09 Functions: 9 11 81.8 %

          Line data    Source code
       1             : 
       2             : /* Copyright (c) 2007-2015, Stefan Eilemann <eile@equalizergraphics.com>
       3             :  *                          Daniel Nachbaur <danielnachbaur@gmail.com>
       4             :  *
       5             :  * This library is free software; you can redistribute it and/or modify it under
       6             :  * the terms of the GNU Lesser General Public License version 2.1 as published
       7             :  * by the Free Software Foundation.
       8             :  *
       9             :  * This library is distributed in the hope that it will be useful, but WITHOUT
      10             :  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
      11             :  * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
      12             :  * details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public License
      15             :  * along with this library; if not, write to the Free Software Foundation, Inc.,
      16             :  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      17             :  */
      18             : 
      19             : #include "commandQueue.h"
      20             : 
      21             : #include "messagePump.h"
      22             : 
      23             : #include <co/iCommand.h>
      24             : #include <lunchbox/clock.h>
      25             : 
      26             : namespace eq
      27             : {
      28             : namespace
      29             : {
      30          14 : static lunchbox::Clock _clock;
      31             : }
      32             : 
      33          25 : CommandQueue::CommandQueue( const size_t maxSize )
      34             :     : co::CommandQueue( maxSize )
      35             :     , _messagePump( 0 )
      36          25 :     , _waitTime( 0 )
      37          25 : {}
      38             : 
      39          30 : CommandQueue::~CommandQueue()
      40             : {
      41          15 :     LBASSERT( !_messagePump );
      42          15 :     delete _messagePump;
      43          15 :     _messagePump = 0;
      44          15 : }
      45             : 
      46          64 : void CommandQueue::push( const co::ICommand& command )
      47             : {
      48          64 :     co::CommandQueue::push( command );
      49          64 :     if( _messagePump )
      50           9 :         _messagePump->postWakeup();
      51          64 : }
      52             : 
      53           0 : void CommandQueue::pushFront( const co::ICommand& command )
      54             : {
      55           0 :     co::CommandQueue::pushFront( command );
      56           0 :     if( _messagePump )
      57           0 :         _messagePump->postWakeup();
      58           0 : }
      59             : 
      60          37 : co::ICommand CommandQueue::pop( const uint32_t timeout )
      61             : {
      62          37 :     const int64_t start = _clock.getTime64();
      63          37 :     int64_t waitBegin = -1;
      64             :     while( true )
      65             :     {
      66          37 :         if( _messagePump )
      67           0 :             _messagePump->dispatchAll(); // non-blocking
      68             : 
      69             :         // Poll for a command
      70          37 :         if( !isEmpty( ))
      71             :         {
      72           4 :             if( waitBegin > -1 )
      73           0 :                 _waitTime += ( _clock.getTime64() - waitBegin );
      74           4 :             return co::CommandQueue::pop( 0 );
      75             :         }
      76             : 
      77          33 :         if( _messagePump )
      78             :         {
      79           0 :             if( waitBegin == -1 )
      80           0 :                 waitBegin = _clock.getTime64();
      81           0 :             _messagePump->dispatchOne( timeout ); // blocks - push sends wakeup
      82             :         }
      83             :         else
      84             :         {
      85          33 :             waitBegin = _clock.getTime64();
      86             :             // blocking
      87          33 :             const co::ICommand& command = co::CommandQueue::pop( timeout );
      88          33 :             _waitTime += ( _clock.getTime64() - waitBegin );
      89          33 :             return command;
      90             :         }
      91             : 
      92           0 :         if( _clock.getTime64() - start > timeout )
      93           0 :             return co::ICommand();
      94           0 :     }
      95             : }
      96             : 
      97           6 : co::ICommands CommandQueue::popAll( const uint32_t timeout )
      98             : {
      99           6 :     const int64_t start = _clock.getTime64();
     100           6 :     int64_t waitBegin = -1;
     101             :     while( true )
     102             :     {
     103           8 :         if( _messagePump )
     104           8 :             _messagePump->dispatchAll(); // non-blocking
     105             : 
     106             :         // Poll for commands
     107           8 :         if( !isEmpty( ))
     108             :         {
     109           6 :             if( waitBegin > -1 )
     110           1 :                 _waitTime += ( _clock.getTime64() - waitBegin );
     111           6 :             return co::CommandQueue::popAll( 0 );
     112             :         }
     113             : 
     114           2 :         if( _messagePump )
     115             :         {
     116           2 :             if( waitBegin == -1 )
     117           1 :                 waitBegin = _clock.getTime64();
     118           2 :             _messagePump->dispatchOne( timeout ); // blocks - push sends wakeup
     119             :         }
     120             :         else
     121             :         {
     122           0 :             waitBegin = _clock.getTime64();
     123             :             // blocking
     124           0 :             const co::ICommands& commands = co::CommandQueue::popAll( timeout );
     125           0 :             _waitTime += ( _clock.getTime64() - waitBegin );
     126           0 :             return commands;
     127             :         }
     128             : 
     129           2 :         if( _clock.getTime64() - start > timeout )
     130           0 :             return co::ICommands();
     131           2 :     }
     132             : }
     133             : 
     134           5 : co::ICommand CommandQueue::tryPop()
     135             : {
     136           5 :     if( _messagePump )
     137           0 :         _messagePump->dispatchAll(); // non-blocking
     138             : 
     139           5 :     return co::CommandQueue::tryPop();
     140             : }
     141             : 
     142          10 : void CommandQueue::pump()
     143             : {
     144          10 :     if( _messagePump )
     145          10 :         _messagePump->dispatchAll(); // non-blocking
     146          10 : }
     147             : 
     148          42 : }

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