root/vic/branches/cc/cc/cc_timer.cpp @ 4859

Revision 4859, 2.0 KB (checked in by soohyunc, 4 years ago)

*** finished TFRC/TFWC Retransmission Timer Mechanisms ***

min RTO - 200 ms (most Linux TCP implementation)
max RTO = 60 sec (RFC 2988)

Also, TfwcSndr? and TfrcSndr? can directly call functions defined in Transmitter.
This is specially usefule when TfwcSndr/TfrcSndr? want to call
Transmitter::output() method directly.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Rev URL
Line 
1/*
2 * Copyright (c) 2010 University College London
3 * All rights reserved.
4 *
5 * AUTHOR: Soo-Hyun Choi <s.choi@.cs.ucl.ac.uk>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor of the Laboratory may be used
16 *    to endorse or promote products derived from this software without
17 *    specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $Id$
32 */
33
34#include <assert.h>
35#include <stdlib.h>
36#include "cc_timer.h"
37
38void CcTimerHandler::sched(double delay) {
39        if (status_ != TIMER_IDLE)
40                abort();
41
42        msched((int)delay);
43        set_timer_handling();
44}
45
46void CcTimerHandler::resched(double delay) {
47        if (status_ == TIMER_PENDING)
48                return;
49
50        cancel();
51        msched((int)delay);
52        set_timer_handling();
53}
54
55void CcTimerHandler::stop() {
56        if (status_ != TIMER_HANDLING)
57                abort();
58
59        cancel();
60        set_timer_idle();
61}
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