* Andreas Hansson
*/
+#include "base/callback.hh"
+#include "base/output.hh"
#include "base/trace.hh"
#include "debug/CommMonitor.hh"
#include "mem/comm_monitor.hh"
+#include "proto/packet.pb.h"
#include "sim/stats.hh"
CommMonitor::CommMonitor(Params* params)
samplePeriodTicks(params->sample_period),
readAddrMask(params->read_addr_mask),
writeAddrMask(params->write_addr_mask),
- stats(params)
+ stats(params),
+ traceStream(NULL)
{
+ // If we are using a trace file, then open the file,
+ if (params->trace_file != "") {
+ // If the trace file is not specified as an absolute path,
+ // append the current simulation output directory
+ std::string filename = simout.resolve(params->trace_file);
+ traceStream = new ProtoOutputStream(filename);
+
+ // Create a protobuf message for the header and write it to
+ // the stream
+ Message::PacketHeader header_msg;
+ header_msg.set_obj_id(name());
+ header_msg.set_tick_freq(SimClock::Frequency);
+ traceStream->write(header_msg);
+
+ // Register a callback to compensate for the destructor not
+ // being called. The callback forces the stream to flush and
+ // closes the output file.
+ Callback* cb = new MakeCallback<CommMonitor,
+ &CommMonitor::closeStreams>(this);
+ registerExitCallback(cb);
+ }
+
// keep track of the sample period both in ticks and absolute time
samplePeriod.setTick(params->sample_period);
name(), samplePeriodTicks, samplePeriod);
}
+void
+CommMonitor::closeStreams()
+{
+ if (traceStream != NULL)
+ delete traceStream;
+}
+
CommMonitor*
CommMonitorParams::create()
{
pkt->senderState = senderState;
}
+ if (successful && traceStream != NULL) {
+ // Create a protobuf message representing the
+ // packet. Currently we do not preserve the flags in the
+ // trace.
+ Message::Packet pkt_msg;
+ pkt_msg.set_tick(curTick());
+ pkt_msg.set_cmd(pkt->cmdToIndex());
+ pkt_msg.set_addr(pkt->getAddr());
+ pkt_msg.set_size(pkt->getSize());
+
+ traceStream->write(pkt_msg);
+ }
+
if (successful && isRead) {
DPRINTF(CommMonitor, "Forwarded read request\n");