root/juggler/tags/1.0.5/Environment/vjCommand.cpp

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 *
 * VR Juggler is (C) Copyright 1998, 1999, 2000 by Iowa State University
 *
 * Original Authors:
 *   Allen Bierbaum, Christopher Just,
 *   Patrick Hartling, Kevin Meinert,
 *   Carolina Cruz-Neira, Albert Baker
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
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 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
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 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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 * File:          $RCSfile$
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#include <Environment/vjCommand.h>
#include <Environment/vjTimedUpdate.h>
#include <Config/vjConfigChunkDB.h>
#include <Config/vjChunkDescDB.h>

void vjCommand::resetFireTime (vjTimeStamp& ts) {
    next_fire_time = ts.usecs()/1000 + refresh_time;
}

int vjCommand::operator < (const vjCommand& cmd2) {
    // used in priority queue
    // true if self should be called _after_ cmd2
    return (next_fire_time < cmd2.next_fire_time);
}
    
std::string vjCommand::getName () {
    return (std::string)"generic vjCommand";
}



// vjCommandRefresh
vjCommandRefresh::vjCommandRefresh() {
    next_fire_time = refresh_time = 0.0;
}
    
void vjCommandRefresh::call (std::ostream& out) {
    out << "Refresh all" << std::endl;
}



// vjCommandSendChunkDB

vjCommandSendChunkDB::vjCommandSendChunkDB (vjConfigChunkDB* _db, bool _all) {
    db = _db;
    all = _all;
}

void vjCommandSendChunkDB::call (std::ostream& out) {
    if (all)
        out << "chunks all\n";
    else
        out << "chunks\n";
    out << *db << std::flush;
}

std::string vjCommandSendChunkDB::getName () {
    return (std::string)"Send ChunkDB command";
}


//vjCommandSendDescDB

vjCommandSendDescDB::vjCommandSendDescDB (vjChunkDescDB* _db, bool _all) {
    db = _db;
    all = _all;
}
    
void vjCommandSendDescDB::call (std::ostream& out) {
    if (all)
        out << "descriptions all\n" << std::flush;
    else
        out << "descriptions\n" << std::flush;
    out << *db << std::flush;
}

std::string vjCommandSendDescDB::getName () {
    return (std::string)"Send DescDB command";
}


// vjCommandTimedUpdate

vjCommandTimedUpdate::vjCommandTimedUpdate (vjTimedUpdate* _tu, float _refresh_time) {
    timed_update = _tu;
    refresh_time = _refresh_time;
    next_fire_time = 0;
}
    
void vjCommandTimedUpdate::call (std::ostream& out) {
    timed_update->write (out);
}

std::string vjCommandTimedUpdate::getName () {
    return (std::string)"Timed Update Command; tu obj is " + timed_update->getName();
}