150 lines
4.7 KiB
C++
150 lines
4.7 KiB
C++
/*
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* Copyright (c) 2002-2004 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <cstring>
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#include <fstream>
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#include <list>
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#include <string>
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#include <vector>
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#include "base/misc.hh"
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#include "sim/universe.hh"
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#include "sim/host.hh"
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#include "sim/param.hh"
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using namespace std;
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Tick curTick = 0;
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Tick ticksPerSecond;
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double __ticksPerMS;
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double __ticksPerUS;
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double __ticksPerNS;
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double __ticksPerPS;
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string outputDirectory;
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ostream *outputStream;
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ostream *configStream;
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class UniverseParamContext : public ParamContext
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{
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public:
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UniverseParamContext(const string &is)
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: ParamContext(is, OutputInitPhase) {}
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void checkParams();
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};
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UniverseParamContext universe("Universe");
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Param<Tick> universe_freq(&universe, "frequency", "tick frequency",
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200000000);
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Param<string> universe_output_dir(&universe, "output_dir",
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"directory to output data to",
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".");
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Param<string> universe_output_file(&universe, "output_file",
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"file to dump simulator output to",
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"cout");
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Param<string> universe_config_output_file(&universe, "config_output_file",
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"file to dump simulator config to",
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"m5config.out");
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void
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UniverseParamContext::checkParams()
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{
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ticksPerSecond = universe_freq;
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double freq = double(ticksPerSecond);
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__ticksPerMS = freq / 1.0e3;
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__ticksPerUS = freq / 1.0e6;
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__ticksPerNS = freq / 1.0e9;
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__ticksPerPS = freq / 1.0e12;
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if (universe_output_dir.isValid()) {
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outputDirectory = universe_output_dir;
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// guarantee that directory ends with a '/'
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if (outputDirectory[outputDirectory.size() - 1] != '/')
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outputDirectory += "/";
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if (mkdir(outputDirectory.c_str(), 0777) < 0) {
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if (errno != EEXIST) {
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panic("%s\ncould not make output directory: %s\n",
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strerror(errno), outputDirectory);
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}
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}
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}
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outputStream = makeOutputStream(universe_output_file);
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configStream = universe_config_output_file.isValid()
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? makeOutputStream(universe_config_output_file)
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: outputStream;
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}
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std::ostream *
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makeOutputStream(std::string &name)
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{
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if (name == "cerr" || name == "stderr")
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return &std::cerr;
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if (name == "cout" || name == "stdout")
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return &std::cout;
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string path = (name[0] != '/') ? outputDirectory + name : name;
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// have to dynamically allocate a stream since we're going to
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// return it... though the caller can't easily free it since it
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// may be cerr or cout. need GC!
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ofstream *s = new ofstream(path.c_str(), ios::trunc);
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if (!s->is_open())
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fatal("Cannot open file %s", path);
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return s;
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}
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void
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closeOutputStream(std::ostream *os)
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{
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// can't close cerr or cout
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if (os == &std::cerr || os == &std::cout)
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return;
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// can only close ofstreams, not generic ostreams, so try to
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// downcast and close only if the downcast succeeds
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std::ofstream *ofs = dynamic_cast<std::ofstream *>(os);
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if (ofs)
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ofs->close();
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}
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