iolog.cc
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上传日期:2015-12-11
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- //
- // iolog.cc : IO Log Layer
- // Authors : Fabio Silva and Yutaka Mori
- //
- // Copyright (C) 2000-2002 by the University of Southern California
- // $Id: iolog.cc,v 1.4 2008/03/27 05:24:46 tom_henderson Exp $
- //
- // This program is free software; you can redistribute it and/or
- // modify it under the terms of the GNU General Public License,
- // version 2, as published by the Free Software Foundation.
- //
- // This program 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, write to the Free Software Foundation, Inc.,
- // 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- //
- // Linking this file statically or dynamically with other modules is making
- // a combined work based on this file. Thus, the terms and conditions of
- // the GNU General Public License cover the whole combination.
- //
- // In addition, as a special exception, the copyright holders of this file
- // give you permission to combine this file with free software programs or
- // libraries that are released under the GNU LGPL and with code included in
- // the standard release of ns-2 under the Apache 2.0 license or under
- // otherwise-compatible licenses with advertising requirements (or modified
- // versions of such code, with unchanged license). You may copy and
- // distribute such a system following the terms of the GNU GPL for this
- // file and the licenses of the other code concerned, provided that you
- // include the source code of that other code when and as the GNU GPL
- // requires distribution of source code.
- //
- // Note that people who make modified versions of this file are not
- // obligated to grant this special exception for their modified versions;
- // it is their choice whether to do so. The GNU General Public License
- // gives permission to release a modified version without this exception;
- // this exception also makes it possible to release a modified version
- // which carries forward this exception.
- #include <stdio.h>
- #include <stdlib.h>
- #include "iolog.hh"
- IOLog::IOLog(int32_t id) : IOHook()
- {
- node_id_ = id;
- DiffPrint(DEBUG_IMPORTANT, "Initializing IOLog...n");
- }
- DiffPacket IOLog::recvPacket(int fd)
- {
- DiffPacket incoming_packet;
- struct timeval tv;
- struct hdr_diff *dfh;
- u_int16_t data_len, packet_len;
- int32_t last_hop, next_hop;
- int msg_type;
- char *msg_name;
- // Receive the packet first
- incoming_packet = IOHook::recvPacket(fd);
- if (incoming_packet){
- // Log incoming packet
- dfh = HDR_DIFF(incoming_packet);
- last_hop = ntohl(LAST_HOP(dfh));
- next_hop = ntohl(NEXT_HOP(dfh));
- data_len = ntohs(DATA_LEN(dfh));
- msg_type = MSG_TYPE(dfh);
- packet_len = data_len + sizeof(hdr_diff);
- switch (msg_type){
- case INTEREST:
- msg_name = strdup("Interest");
- break;
- case DATA:
- msg_name = strdup("Data");
- break;
- case EXPLORATORY_DATA:
- msg_name = strdup("Exploratory Data");
- break;
- case PUSH_EXPLORATORY_DATA:
- msg_name = strdup("Push Exploratory Data");
- break;
- case POSITIVE_REINFORCEMENT:
- msg_name = strdup("Positive Reinforcement");
- break;
- case NEGATIVE_REINFORCEMENT:
- msg_name = strdup("Negative Reinforcement");
- break;
- default:
- msg_name = strdup("Unknown");
- break;
- }
- if (last_hop != LOCALHOST_ADDR){
- GetTime(&tv);
- if (next_hop == BROADCAST_ADDR){
- fprintf(stdout,
- "Diffusion Log: Time %ld.%06ld Node %d received broadcast %d bytes from node %d message %sn",
- tv.tv_sec, (long int) tv.tv_usec, node_id_, packet_len, last_hop, msg_name);
- }
- else{
- fprintf(stdout,
- "Diffusion Log: Time %ld.%06ld Node %d received unicast %d bytes from node %d message %sn",
- tv.tv_sec, (long int) tv.tv_usec, node_id_, packet_len, last_hop, msg_name);
- }
- fflush(NULL);
- }
- free(msg_name);
- }
- return incoming_packet;
- }
- void IOLog::sendPacket(DiffPacket pkt, int len, int dst)
- {
- struct timeval tv;
- struct hdr_diff *dfh;
- int msg_type;
- char *msg_name;
- // Log outgoing packet
- dfh = HDR_DIFF(pkt);
- msg_type = MSG_TYPE(dfh);
- switch (msg_type){
- case INTEREST:
- msg_name = strdup("Interest");
- break;
- case DATA:
- msg_name = strdup("Data");
- break;
- case EXPLORATORY_DATA:
- msg_name = strdup("Exploratory Data");
- break;
- case PUSH_EXPLORATORY_DATA:
- msg_name = strdup("Push Exploratory Data");
- break;
- case POSITIVE_REINFORCEMENT:
- msg_name = strdup("Positive Reinforcement");
- break;
- case NEGATIVE_REINFORCEMENT:
- msg_name = strdup("Negative Reinforcement");
- break;
- default:
- msg_name = strdup("Unknown");
- break;
- }
- // Get local time
- GetTime(&tv);
- if (dst == BROADCAST_ADDR){
- fprintf(stdout,
- "Diffusion Log: Time %ld.%06ld Node %d sending broadcast %d bytes to node %d message %sn",
- tv.tv_sec, (long int) tv.tv_usec, node_id_, len, dst, msg_name);
- }
- else{
- fprintf(stdout,
- "Diffusion Log: Time %ld.%06ld Node %d sending unicast %d bytes to node %d message %sn",
- tv.tv_sec, (long int) tv.tv_usec, node_id_, len, dst, msg_name);
- }
- fflush(NULL);
- free(msg_name);
- // Send packet to device
- IOHook::sendPacket(pkt, len, dst);
- }