/usr/include/music/synchronizer.hh is in libmusic-dev 1.0.7-1.1build1.
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 | /*
* This file is part of MUSIC.
* Copyright (C) 2008, 2009 INCF
*
* MUSIC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* MUSIC 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MUSIC_SYNCHRONIZER_HH
#include <music/clock.hh>
namespace MUSIC {
// The Synchronizer is responsible for the timing involved in
// communication, sampling, interpolation and buffering. There is
// one Synchronizer in each Connector. The Subconnectors of a
// Connector also have a reference to the Connector's synchronizer.
class Synchronizer {
protected:
// pointer to the main clock of this application
Clock* localTime;
// the following two clocks are mirrored on both peers; this is
// the core of the mechanism by which MUSIC avoids handshaking
// this clock holds the time (in the sender time frame) when an
// OutputConnector is going to send next packet of data to its
// peer InputConnector
Clock nextSend;
// this clock holds the time (in the receiver time frame) when an
// InputConnector is going to receive next packet of data from its
// peer OutputConnector
Clock nextReceive;
// for events and messages, this is how late data is permitted to
// arrive at the receiver; for continous data this is how much
// data is delayed; negative values are allowed
ClockState latency_;
// how much extra buffering is allowed; measured in units of
// sender side ticks
int maxBuffered_;
// interpolate rather than picking value closest in time
bool interpolate_;
// cached decision to communicate; (nextSend or nextReceive time
// has arrived)
bool communicate_;
void nextCommunication ();
public:
void setLocalTime (Clock* lt);
virtual void setSenderTickInterval (ClockState ti);
virtual void setReceiverTickInterval (ClockState ti);
void setMaxBuffered (int m);
int allowedBuffered () { return maxBuffered_; }
void setAccLatency (ClockState l);
ClockState delay () { return latency_; }
void setInterpolate (bool flag);
virtual void initialize ();
virtual int initialBufferedTicks () { return 0; };
bool communicate ();
};
class OutputSynchronizer : virtual public Synchronizer {
public:
bool sample ();
void tick ();
};
class InputSynchronizer : virtual public Synchronizer {
public:
virtual int initialBufferedTicks ();
void tick ();
};
class InterpolationSynchronizer : virtual public Synchronizer {
protected:
Clock remoteTime;
public:
virtual void setSenderTickInterval (ClockState ti);
virtual void setReceiverTickInterval (ClockState ti);
void remoteTick ();
};
class InterpolationOutputSynchronizer : public InterpolationSynchronizer,
public OutputSynchronizer {
public:
void initialize ();
bool sample ();
bool interpolate ();
double interpolationCoefficient ();
void tick ();
};
class InterpolationInputSynchronizer : public InterpolationSynchronizer,
public InputSynchronizer {
public:
void initialize ();
bool sample ();
double interpolationCoefficient ();
void tick ();
};
}
#define MUSIC_SYNCHRONIZER_HH
#endif
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