00001 /* 00002 * libjdkmidi-2004 C++ Class Library for MIDI 00003 * 00004 * Copyright (C) 2004 J.D. Koftinoff Software, Ltd. 00005 * www.jdkoftinoff.com 00006 * jeffk@jdkoftinoff.com 00007 * 00008 * *** RELEASED UNDER THE GNU GENERAL PUBLIC LICENSE (GPL) April 27, 2004 *** 00009 * 00010 * This program is free software; you can redistribute it and/or modify 00011 * it under the terms of the GNU General Public License as published by 00012 * the Free Software Foundation; either version 2 of the License, or 00013 * (at your option) any later version. 00014 * 00015 * This program is distributed in the hope that it will be useful, 00016 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 * GNU General Public License for more details. 00019 * 00020 * You should have received a copy of the GNU General Public License 00021 * along with this program; if not, write to the Free Software 00022 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00023 */ 00024 #include "jdkmidi/world.h" 00025 #include "jdkmidi/queue.h" 00026 00027 namespace jdkmidi 00028 { 00029 00030 00031 MIDIQueue::MIDIQueue( int num_msgs ) 00032 : 00033 buf( new MIDITimedBigMessage[ num_msgs ] ), 00034 bufsize( num_msgs ), 00035 next_in(0), 00036 next_out(0) 00037 { 00038 00039 } 00040 00041 00042 MIDIQueue::~MIDIQueue() 00043 { 00044 delete [] buf; 00045 } 00046 00047 void MIDIQueue::Clear() 00048 { 00049 next_in=0; 00050 next_out=0; 00051 } 00052 00053 bool MIDIQueue::CanPut() const 00054 { 00055 return next_out != ((next_in+1)%bufsize); 00056 } 00057 00058 bool MIDIQueue::CanGet() const 00059 { 00060 return next_in != next_out; 00061 } 00062 00063 00064 00065 }