00001 /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */ 00002 /* 00003 * Copyright (c) 1997 Regents of the University of California. 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without 00007 * modification, are permitted provided that the following conditions 00008 * are met: 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 3. All advertising materials mentioning features or use of this software 00015 * must display the following acknowledgement: 00016 * This product includes software developed by the Computer Systems 00017 * Engineering Group at Lawrence Berkeley Laboratory. 00018 * 4. Neither the name of the University nor of the Laboratory may be used 00019 * to endorse or promote products derived from this software without 00020 * specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00023 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00026 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00028 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00029 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00032 * SUCH DAMAGE. 00033 */ 00034 /* Ported from CMU/Monarch's code*/ 00035 00036 /* 00037 imep_timers.cc 00038 $Id: imep_timers.cc,v 1.2 1999/08/12 21:17:25 yaxu Exp $ 00039 */ 00040 00041 #include <imep/imep.h> 00042 00043 #include <packet.h> 00044 #include <ip.h> 00045 00046 #define CURRENT_TIME Scheduler::instance().clock() 00047 00048 // ====================================================================== 00049 // ====================================================================== 00050 00051 void 00052 imepTimer::handle(Event *) 00053 { 00054 busy_ = 0; 00055 agent->handlerTimer(type_); 00056 } 00057 00058 void 00059 imepTimer::start(double time) 00060 { 00061 assert(busy_ == 0); 00062 busy_ = 1; 00063 Scheduler::instance().schedule(this, &intr, time); 00064 } 00065 00066 void 00067 imepTimer::cancel() 00068 { 00069 assert(busy_ == 1); 00070 busy_ = 0; 00071 Scheduler::instance().cancel(&intr); 00072 } 00073 00074 double 00075 imepTimer::timeLeft() 00076 { 00077 assert(busy_ == 1); 00078 return intr.time_ - CURRENT_TIME; 00079 }
1.3.3