1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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166void
167Serializable::nameOut(ostream &os, const string &_name)
168{
169 os << "\n[" << _name << "]\n";
170}
171
172template <class T>
173void
174paramOut(ostream &os, const string &name, const T ¶m)
175{
176 os << name << "=";
177 showParam(os, param);
178 os << "\n";
179}
180
181template <class T>
182void
183arrayParamOut(ostream &os, const string &name, const vector<T> &param)
184{
185 int size = param.size();
186 os << name << "=";
187 if (size > 0)
188 showParam(os, param[0]);
189 for (int i = 1; i < size; ++i) {
190 os << " ";
191 showParam(os, param[i]);
192 }
193 os << "\n";
194}
195
196
197template <class T>
198void
199paramIn(Checkpoint *cp, const string &section, const string &name, T &param)
200{
201 string str;
202 if (!cp->find(section, name, str) || !parseParam(str, param)) {
203 fatal("Can't unserialize '%s:%s'\n", section, name);
204 }
205}
206
207
208template <class T>
209void
210arrayParamOut(ostream &os, const string &name, const T *param, int size)
211{
212 os << name << "=";
213 if (size > 0)
214 showParam(os, param[0]);
215 for (int i = 1; i < size; ++i) {
216 os << " ";
217 showParam(os, param[i]);
218 }
219 os << "\n";
220}
221
222
223template <class T>
224void
225arrayParamIn(Checkpoint *cp, const string &section, const string &name,
226 T *param, int size)
227{
228 string str;
229 if (!cp->find(section, name, str)) {
230 fatal("Can't unserialize '%s:%s'\n", section, name);
231 }
232
233 // code below stolen from VectorParam<T>::parse().
234 // it would be nice to unify these somehow...
235
236 vector<string> tokens;

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261
262 // assign parsed value to vector
263 param[i] = scalar_value;
264 }
265}
266
267template <class T>
268void
269arrayParamIn(Checkpoint *cp, const string §ion,
270 const string &name, vector<T> &param)
271{
272 string str;
273 if (!cp->find(section, name, str)) {
274 fatal("Can't unserialize '%s:%s'\n", section, name);
275 }
276
277 // code below stolen from VectorParam<T>::parse().
278 // it would be nice to unify these somehow...
279
280 vector<string> tokens;

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304 // assign parsed value to vector
305 param[i] = scalar_value;
306 }
307}
308
309
310
311void
312objParamIn(Checkpoint *cp, const string §ion,
313 const string &name, SimObject * ¶m)
314{
315 if (!cp->findObj(section, name, param)) {
316 fatal("Can't unserialize '%s:%s'\n", section, name);
317 }
318}
319
320
321#define INSTANTIATE_PARAM_TEMPLATES(type) \
322template void \
323paramOut(ostream &os, const string &name, type const &param); \
324template void \
325paramIn(Checkpoint *cp, const string &section, \
326 const string &name, type & param); \
327template void \
328arrayParamOut(ostream &os, const string &name, \
329 type const *param, int size); \
330template void \
331arrayParamIn(Checkpoint *cp, const string &section, \
332 const string &name, type *param, int size); \
333template void \
334arrayParamOut(ostream &os, const string &name, \
335 const vector<type> &param); \
336template void \
337arrayParamIn(Checkpoint *cp, const string &section, \
338 const string &name, vector<type> &param);
339
340INSTANTIATE_PARAM_TEMPLATES(signed char)
341INSTANTIATE_PARAM_TEMPLATES(unsigned char)
342INSTANTIATE_PARAM_TEMPLATES(signed short)
343INSTANTIATE_PARAM_TEMPLATES(unsigned short)
344INSTANTIATE_PARAM_TEMPLATES(signed int)
345INSTANTIATE_PARAM_TEMPLATES(unsigned int)
346INSTANTIATE_PARAM_TEMPLATES(signed long)

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397{
398}
399
400Serializable::~Serializable()
401{
402}
403
404void
405Serializable::serialize(ostream &os)
406{
407}
408
409void
410Serializable::unserialize(Checkpoint *cp, const string §ion)
411{
412}
413
414void
415Serializable::serializeAll(const string &cpt_dir)
416{
417 setCheckpointDir(cpt_dir);
418 string dir = Checkpoint::dir();
419 if (mkdir(dir.c_str(), 0775) == -1 && errno != EEXIST)
420 fatal("couldn't mkdir %s\n", dir);
421
422 string cpt_file = dir + Checkpoint::baseFilename;
423 ofstream outstream(cpt_file.c_str());
424 time_t t = time(NULL);
425 if (!outstream.is_open())
426 fatal("Unable to open file %s for writing\n", cpt_file.c_str());
427 outstream << "// checkpoint generated: " << ctime(&t);
428
429 globals.serialize(outstream);
430 SimObject::serializeAll(outstream);
431}
432
433void
434Serializable::unserializeAll(const string &cpt_dir)
435{
436 setCheckpointDir(cpt_dir);
437 string dir = Checkpoint::dir();
438 string cpt_file = dir + Checkpoint::baseFilename;
439 string section = "";
440
441 DPRINTFR(Config, "Loading checkpoint dir '%s'\n",
442 dir);

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451 globals.unserialize(cp);
452}
453
454const char *Checkpoint::baseFilename = "m5.cpt";
455
456static string checkpointDirBase;
457
458void
459setCheckpointDir(const string &name)
460{
461 checkpointDirBase = name;
462 if (checkpointDirBase[checkpointDirBase.size() - 1] != '/')
463 checkpointDirBase += "/";
464}
465
466string
467Checkpoint::dir()
468{
469 // use csprintf to insert curTick into directory name if it
470 // appears to have a format placeholder in it.
471 return (checkpointDirBase.find("%") != string::npos) ?
472 csprintf(checkpointDirBase, curTick) : checkpointDirBase;
473}
474
475void
476debug_serialize(const string &cpt_dir)
477{
478 Serializable::serializeAll(cpt_dir);
479}
480
481
482////////////////////////////////////////////////////////////////////////
483//
484// SerializableClass member definitions
485//
486////////////////////////////////////////////////////////////////////////
487
488// Map of class names to SerializableBuilder creation functions.
489// Need to make this a pointer so we can force initialization on the
490// first reference; otherwise, some SerializableClass constructors
491// may be invoked before the classMap constructor.
492map<string, SerializableClass::CreateFunc> *SerializableClass::classMap = 0;
493
494// SerializableClass constructor: add mapping to classMap
495SerializableClass::SerializableClass(const string &className,
496 CreateFunc createFunc)
497{
498 if (classMap == NULL)
499 classMap = new map<string, SerializableClass::CreateFunc>();
500
501 if ((*classMap)[className])
502 fatal("Error: simulation object class %s redefined\n", className);
503
504 // add className --> createFunc to class map
505 (*classMap)[className] = createFunc;
506}
507
508//
509//
510Serializable *
511SerializableClass::createObject(Checkpoint *cp, const string &section)
512{
513 string className;
514
515 if (!cp->find(section, "type", className)) {
516 fatal("Serializable::create: no 'type' entry in section '%s'.\n",
517 section);
518 }
519

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528
529 assert(object != NULL);
530
531 return object;
532}
533
534
535Serializable *
536Serializable::create(Checkpoint *cp, const string §ion)
537{
538 Serializable *object = SerializableClass::createObject(cp, section);
539 object->unserialize(cp, section);
540 return object;
541}
542
543
544Checkpoint::Checkpoint(const string &cpt_dir, const string &path)
545 : db(new IniFile), basePath(path), cptDir(cpt_dir)
546{
547 string filename = cpt_dir + "/" + Checkpoint::baseFilename;
548 if (!db->load(filename)) {
549 fatal("Can't load checkpoint file '%s'\n", filename);
550 }
551}
552
553
554bool
555Checkpoint::find(const string &section, const string &entry, string &value)
556{
557 return db->find(section, entry, value);
558}
559
560
561bool
562Checkpoint::findObj(const string &section, const string &entry,
563 SimObject *&value)
564{
565 string path;
566
567 if (!db->find(section, entry, path))
568 return false;
569
570 value = resolveSimObject(path);
571 return true;
572}
573
574
575bool
576Checkpoint::sectionExists(const string §ion)
577{
578 return db->sectionExists(section);
579}