566 lines
16 KiB
C++
566 lines
16 KiB
C++
#include "normSimAgent.h"
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#include <errno.h>
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NormSimAgent::NormSimAgent()
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: session(NULL), stream(NULL),
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address(NULL), port(0), ttl(3),
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tx_rate(NormSession::DEFAULT_TRANSMIT_RATE),
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backoff_factor(NormSession::DEFAULT_BACKOFF_FACTOR),
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segment_size(1024), ndata(32), nparity(16), auto_parity(0),
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group_size(NormSession::DEFAULT_GSIZE_ESTIMATE),
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tx_buffer_size(1024*1024), rx_buffer_size(1024*1024),
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tx_object_size(0), tx_object_interval(0.0),
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tx_repeat_count(0), tx_repeat_interval(0.0),
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tracing(false), tx_loss(0.0), rx_loss(0.0)
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{
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// Bind NormSessionMgr to this agent and simulation environment
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session_mgr.Init(ProtoSimAgent::TimerInstaller, this,
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ProtoSimAgent::SocketInstaller, this,
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static_cast<NormController*>(this));
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interval_timer.Init(0.0, 0, (ProtocolTimerOwner*)this,
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(ProtocolTimeoutFunc)&NormSimAgent::OnIntervalTimeout);
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}
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NormSimAgent::~NormSimAgent()
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{
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if (address) delete address;
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}
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const char* const NormSimAgent::cmd_list[] =
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{
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"+debug",
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"+log",
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"-trace",
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"+txloss",
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"+rxloss",
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"+address",
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"+ttl",
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"+rate",
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"+backoff",
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"+input",
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"+output",
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"+interval",
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"+repeat",
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"+rinterval", // repeat interval
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"+segment",
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"+block",
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"+parity",
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"+auto",
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"+gsize",
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"+txbuffer",
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"+rxbuffer",
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"+start",
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"-stop",
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"+sendFile",
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NULL
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};
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bool NormSimAgent::ProcessCommand(const char* cmd, const char* val)
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{
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CmdType type = CommandType(cmd);
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ASSERT(CMD_INVALID != type);
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unsigned int len = strlen(cmd);
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if ((CMD_ARG == type) && !val)
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{
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DMSG(0, "NormSimAgent::ProcessCommand(%s) missing argument\n", cmd);
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return false;
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}
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if (!strncmp("debug", cmd, len))
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{
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int debugLevel = atoi(val);
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if ((debugLevel < 0) || (debugLevel > 12))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(segment) invalid debug level!\n");
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return false;
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}
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SetDebugLevel(debugLevel);
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}
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else if (!strncmp("log", cmd, len))
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{
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OpenDebugLog(val);
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}
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else if (!strncmp("trace", cmd, len))
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{
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tracing = true;
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if (session) session->SetTrace(true);
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}
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else if (!strncmp("txloss", cmd, len))
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{
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double txLoss = atof(val);
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if (txLoss < 0)
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{
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DMSG(0, "NormSimAgent::ProcessCommand(txloss) invalid txRate!\n");
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return false;
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}
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tx_loss = txLoss;
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if (session) session->SetTxLoss(txLoss);
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}
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else if (!strncmp("rxloss", cmd, len))
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{
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double rxLoss = atof(val);
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if (rxLoss < 0)
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{
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DMSG(0, "NormSimAgent::ProcessCommand(rxloss) invalid txRate!\n");
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return false;
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}
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rx_loss = rxLoss;
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if (session) session->SetRxLoss(rxLoss);
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}
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else if (!strncmp("address", cmd, len))
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{
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unsigned int len = strlen(val);
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if (address) delete address;
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if (!(address = new char[len+1]))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(address) allocation error:%s\n",
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strerror(errno));
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return false;
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}
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strcpy(address, val);
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char* ptr = strchr(address, '/');
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if (!ptr)
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{
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delete address;
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address = NULL;
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DMSG(0, "NormSimAgent::ProcessCommand(address) missing port number!\n");
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return false;
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}
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*ptr++ = '\0';
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int portNum = atoi(ptr);
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if ((portNum < 1) || (portNum > 65535))
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{
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delete address;
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address = NULL;
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DMSG(0, "NormSimAgent::ProcessCommand(address) invalid port number!\n");
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return false;
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}
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port = portNum;
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}
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else if (!strncmp("ttl", cmd, len))
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{
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int ttlTemp = atoi(val);
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if ((ttlTemp < 1) || (ttlTemp > 255))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(ttl) invalid value!\n");
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return false;
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}
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ttl = ttlTemp;
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}
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else if (!strncmp("rate", cmd, len))
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{
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double txRate = atof(val);
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if (txRate < 0)
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{
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DMSG(0, "NormSimAgent::ProcessCommand(rate) invalid txRate!\n");
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return false;
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}
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tx_rate = txRate;
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if (session) session->SetTxRate(txRate);
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}
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else if (!strncmp("backoff", cmd, len))
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{
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double backoffFactor = atof(val);
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if (backoffFactor < 0)
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{
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DMSG(0, "NormSimAgent::ProcessCommand(backoff) invalid txRate!\n");
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return false;
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}
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backoff_factor = backoffFactor;
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if (session) session->SetTxRate(backoffFactor);
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}
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else if (!strncmp("interval", cmd, len))
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{
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if (1 != sscanf(val, "%lf", &tx_object_interval))
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tx_object_interval = -1.0;
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if (tx_object_interval < 0.0)
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{
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DMSG(0, "NormSimAgent::ProcessCommand(interval) Invalid tx object interval: %s\n",
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val);
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tx_object_interval = 0.0;
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return false;
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}
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}
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else if (!strncmp("repeat", cmd, len))
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{
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tx_repeat_count = atoi(val);
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}
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else if (!strncmp("segment", cmd, len))
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{
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int segmentSize = atoi(val);
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if ((segmentSize < 0) || (segmentSize > 8000))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(segment) invalid segment size!\n");
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return false;
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}
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segment_size = segmentSize;
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}
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else if (!strncmp("block", cmd, len))
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{
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int blockSize = atoi(val);
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if ((blockSize < 1) || (blockSize > 255))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(block) invalid block size!\n");
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return false;
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}
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ndata = blockSize;
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}
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else if (!strncmp("parity", cmd, len))
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{
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int numParity = atoi(val);
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if ((numParity < 0) || (numParity > 254))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(parity) invalid value!\n");
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return false;
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}
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nparity = numParity;
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}
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else if (!strncmp("auto", cmd, len))
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{
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int autoParity = atoi(val);
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if ((autoParity < 0) || (autoParity > 254))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(auto) invalid value!\n");
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return false;
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}
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auto_parity = autoParity;
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if (session) session->ServerSetAutoParity(autoParity);
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}
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else if (!strncmp("gsize", cmd, len))
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{
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if (1 != sscanf(val, "%lf", &group_size))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(gize) invalid value!\n");
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return false;
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}
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if (session) session->ServerSetGroupSize(group_size);
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}
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else if (!strncmp("txbuffer", cmd, len))
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{
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if (1 != sscanf(val, "%lu", &tx_buffer_size))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(txbuffer) invalid value!\n");
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return false;
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}
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}
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else if (!strncmp("rxbuffer", cmd, len))
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{
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if (1 != sscanf(val, "%lu", &rx_buffer_size))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(rxbuffer) invalid value!\n");
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return false;
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}
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}
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else if (!strncmp("start", cmd, len))
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{
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if (!strcmp("server", val))
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{
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return StartServer();
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}
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else if (!strcmp("client", val))
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{
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return StartClient();
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}
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else
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{
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DMSG(0, "NormSimAgent::ProcessCommand(start) invalid value!\n");
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return false;
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}
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}
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else if (!strncmp("stop", cmd, len))
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{
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Stop();
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}
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else if (!strncmp("sendFile", cmd, len))
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{
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if (1 != sscanf(val, "%lu", &tx_object_size))
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{
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DMSG(0, "NormSimAgent::ProcessCommand(sendFile) invalid size!\n");
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return false;
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}
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if (session)
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{
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return (NULL != session->QueueTxSim(tx_object_size));
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}
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else
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{
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DMSG(0, "NormSimAgent::ProcessCommand(sendFile) no session started!\n");
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return false;
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}
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}
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return true;
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} // end NormSimAgent::ProcessCommand()
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NormSimAgent::CmdType NormSimAgent::CommandType(const char* cmd)
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{
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if (!cmd) return CMD_INVALID;
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unsigned int len = strlen(cmd);
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bool matched = false;
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CmdType type = CMD_INVALID;
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const char* const* nextCmd = cmd_list;
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while (*nextCmd)
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{
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if (!strncmp(cmd, *nextCmd+1, len))
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{
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if (matched)
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{
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// ambiguous command (command should match only once)
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return CMD_INVALID;
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}
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else
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{
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matched = true;
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if ('+' == *nextCmd[0])
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type = CMD_ARG;
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else
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type = CMD_NOARG;
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}
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}
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nextCmd++;
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}
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return type;
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} // end NormSimAgent::CommandType()
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void NormSimAgent::Notify(NormController::Event event,
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class NormSessionMgr* sessionMgr,
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class NormSession* session,
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class NormServerNode* server,
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class NormObject* object)
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{
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switch (event)
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{
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case TX_QUEUE_EMPTY:
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// Can queue a new object or write to stream for transmission
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if (interval_timer.Interval() > 0.0)
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{
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InstallTimer(interval_timer);
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}
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else
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{
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OnIntervalTimeout();
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}
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break;
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case RX_OBJECT_NEW:
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{
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//TRACE("NormSimAgent::Notify(RX_OBJECT_NEW) ...\n");
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// It's up to the app to "accept" the object
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switch (object->GetType())
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{
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case NormObject::STREAM:
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{
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const NormObjectSize& size = object->Size();
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if (!((NormStreamObject*)object)->Accept(size.LSB()))
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{
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DMSG(0, "NormSimAgent::Notify(RX_OBJECT_NEW) stream object accept error!\n");
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}
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}
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break;
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case NormObject::FILE:
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{
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if (!((NormSimObject*)object)->Accept())
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{
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DMSG(0, "NormSimAgent::Notify(RX_OBJECT_NEW) sim object accept error!\n");
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}
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}
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break;
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case NormObject::DATA:
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DMSG(0, "NormSimAgent::Notify() FILE/DATA objects not _yet_ supported...\n");
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break;
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}
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break;
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}
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case RX_OBJECT_INFO:
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//TRACE("NormSimAgent::Notify(RX_OBJECT_INFO) ...\n");
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switch(object->GetType())
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{
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case NormObject::FILE:
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case NormObject::DATA:
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case NormObject::STREAM:
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break;
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} // end switch(object->GetType())
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break;
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case RX_OBJECT_UPDATE:
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//TRACE("NormSimAgent::Notify(RX_OBJECT_UPDATE) ...\n");
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switch (object->GetType())
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{
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case NormObject::FILE:
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// (TBD) update progress
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break;
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case NormObject::STREAM:
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{
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// Read the stream when it's updated
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char buffer[256];
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unsigned int nBytes;
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while ((nBytes = ((NormStreamObject*)object)->Read(buffer, 256)))
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{
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}
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break;
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}
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case NormObject::DATA:
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DMSG(0, "NormSimAgent::Notify() FILE/DATA objects not _yet_ supported...\n");
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break;
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} // end switch (object->GetType())
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break;
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case RX_OBJECT_COMPLETE:
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{
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switch(object->GetType())
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{
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case NormObject::FILE:
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//DMSG(0, "norm: Completed rx file: %s\n", ((NormFileObject*)object)->Path());
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break;
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case NormObject::STREAM:
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ASSERT(0);
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break;
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case NormObject::DATA:
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ASSERT(0);
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break;
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}
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break;
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}
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} // end switch(event)
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} // end NormSimAgent::Notify()
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bool NormSimAgent::OnIntervalTimeout()
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{
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if (tx_repeat_count)
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{
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if (stream)
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{
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}
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else
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{
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// Queue a NORM_OBJECT_SIM as long as there are repeats
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if (tx_repeat_count > 0) tx_repeat_count--;
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if (!session->QueueTxSim(tx_object_size))
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{
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DMSG(0, "NormSimAgent::OnIntervalTimeout() Error queueing tx object.\n");
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}
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}
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interval_timer.SetInterval(tx_object_interval);
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return true;
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}
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else
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{
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// Done
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interval_timer.Deactivate();
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return false;
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}
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} // end NormSimAgent::OnIntervalTimeout()
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bool NormSimAgent::StartServer()
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{
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if (session)
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{
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DMSG(0, "NormSimAgent::StartServer() Error! server or client already started!\n");
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return false;
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}
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// Validate our session settings
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if (!address)
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{
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DMSG(0, "NormSimAgent::StartServer() Error! no session address given.");
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return false;
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}
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// Create a new session on multicast group/port
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session = session_mgr.NewSession(address, port, GetAgentId());
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if (session)
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{
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// Common session parameters
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session->SetTxRate(tx_rate);
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session->SetBackoffFactor(backoff_factor);
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session->SetTrace(tracing);
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session->SetTxLoss(tx_loss);
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session->SetRxLoss(rx_loss);
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// StartServer(bufferMax, segmentSize, fec_ndata, fec_nparity)
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if (!session->StartServer(tx_buffer_size, segment_size, ndata, nparity))
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{
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DMSG(0, "NormSimAgent::OnStartup() start server error!\n");
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session_mgr.Destroy();
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return false;
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}
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session->ServerSetAutoParity(auto_parity);
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session->ServerSetGroupSize(group_size);
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return true;
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}
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else
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{
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DMSG(0, "NormSimAgent::StartServer() new session error!\n");
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return false;
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}
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} // end NormSimAgent::StartServer()
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bool NormSimAgent::StartClient()
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{
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if (session)
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{
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DMSG(0, "NormSimAgent::StartClient() Error! server or client already started!\n");
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return false;
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}
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// Validate our session settings
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if (!address)
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{
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DMSG(0, "NormSimAgent::StartClient() Error! no session address given.");
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return false;
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}
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// Create a new session on multicast group/port
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session = session_mgr.NewSession(address, port, GetAgentId());
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if (session)
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{
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// Common session parameters
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session->SetTxRate(tx_rate);
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session->SetBackoffFactor(backoff_factor);
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session->SetTrace(tracing);
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session->SetTxLoss(tx_loss);
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session->SetRxLoss(rx_loss);
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// StartClient(bufferSize)
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if (!session->StartClient(rx_buffer_size))
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{
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DMSG(0, "NormSimAgent::StartClient() start client error!\n");
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session_mgr.Destroy();
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return false;
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}
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return true;
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}
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else
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{
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DMSG(0, "NormSimAgent::StartClient() new session error!\n");
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return false;
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}
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} // end NormSimAgent::StartServer()
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void NormSimAgent::Stop()
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{
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if (session)
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{
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if (session->IsServer()) session->StopServer();
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if (session->IsClient()) session->StopClient();
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session_mgr.DeleteSession(session);
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session = NULL;
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}
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} // end NormSimAgent::StopServer()
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