gem5/sim/serialize.hh
Ali Saidi 2f316082e4 Updated Copyright with information in bitkeeper changelogs
arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_linux_process.hh:
arch/alpha/alpha_memory.cc:
arch/alpha/alpha_memory.hh:
arch/alpha/alpha_tru64_process.cc:
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arch/alpha/aout_machdep.h:
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base/loader/aout_object.cc:
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base/str.cc:
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base/time.cc:
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base/trace.cc:
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cpu/base_cpu.cc:
cpu/base_cpu.hh:
cpu/exec_context.cc:
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cpu/exetrace.cc:
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cpu/full_cpu/op_class.hh:
cpu/full_cpu/smt.hh:
cpu/inst_seq.hh:
cpu/intr_control.cc:
cpu/intr_control.hh:
cpu/memtest/memtest.cc:
cpu/memtest/memtest.hh:
cpu/pc_event.cc:
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cpu/simple_cpu/simple_cpu.cc:
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cpu/static_inst.cc:
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dev/alpha_console.cc:
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dev/ns_gige_reg.h:
dev/pciconfigall.cc:
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dev/pcidev.cc:
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dev/platform.cc:
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dev/tsunami.cc:
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dev/tsunamireg.h:
docs/stl.hh:
kern/linux/linux.hh:
kern/linux/linux_syscalls.cc:
kern/linux/linux_syscalls.hh:
kern/linux/linux_system.cc:
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kern/system_events.cc:
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kern/tru64/dump_mbuf.cc:
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kern/tru64/printf.cc:
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kern/tru64/tru64_events.cc:
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sim/async.hh:
sim/builder.cc:
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sim/debug.cc:
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sim/eventq.cc:
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sim/host.hh:
sim/main.cc:
sim/param.cc:
sim/param.hh:
sim/process.cc:
sim/process.hh:
sim/serialize.cc:
sim/serialize.hh:
sim/sim_events.cc:
sim/sim_events.hh:
sim/sim_exit.hh:
sim/sim_object.cc:
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sim/stat_control.cc:
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sim/stats.hh:
sim/syscall_emul.cc:
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sim/system.cc:
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sim/universe.cc:
test/bitvectest.cc:
test/circletest.cc:
test/cprintftest.cc:
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test/lru_test.cc:
test/nmtest.cc:
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test/paramtest.cc:
test/rangetest.cc:
test/sized_test.cc:
test/stattest.cc:
test/strnumtest.cc:
test/symtest.cc:
test/tokentest.cc:
test/tracetest.cc:
util/m5/m5.c:
util/m5/m5op.h:
util/tap/tap.cc:
    Updated Copyright
dev/console.cc:
dev/console.hh:
    This code isn't ours, and shouldn't have our copyright

--HG--
extra : convert_revision : 598f2e5eab5d5d3de2c1e862b389086e3212f7c4
2004-06-08 13:37:27 -04:00

238 lines
8.1 KiB
C++

/*
* Copyright (c) 2002-2004 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* @file
* Serialization Interface Declarations
*/
#ifndef __SERIALIZE_HH__
#define __SERIALIZE_HH__
#include <list>
#include <iostream>
#include <map>
#include "sim/host.hh"
#include "sim/configfile.hh"
class Serializable;
class Checkpoint;
template <class T>
void paramOut(std::ostream &os, const std::string &name, const T &param);
template <class T>
void paramIn(Checkpoint *cp, const std::string &section,
const std::string &name, T &param);
template <class T>
void arrayParamOut(std::ostream &os, const std::string &name,
const T *param, int size);
template <class T>
void arrayParamIn(Checkpoint *cp, const std::string &section,
const std::string &name, T *param, int size);
void
objParamIn(Checkpoint *cp, const std::string &section,
const std::string &name, Serializable * &param);
//
// These macros are streamlined to use in serialize/unserialize
// functions. It's assumed that serialize() has a parameter 'os' for
// the ostream, and unserialize() has parameters 'cp' and 'section'.
#define SERIALIZE_SCALAR(scalar) paramOut(os, #scalar, scalar)
#define UNSERIALIZE_SCALAR(scalar) paramIn(cp, section, #scalar, scalar)
// ENUMs are like SCALARs, but we cast them to ints on the way out
#define SERIALIZE_ENUM(scalar) paramOut(os, #scalar, (int)scalar)
#define UNSERIALIZE_ENUM(scalar) \
do { \
int tmp; \
paramIn(cp, section, #scalar, tmp); \
scalar = (typeof(scalar))tmp; \
} while (0)
#define SERIALIZE_ARRAY(member, size) \
arrayParamOut(os, #member, member, size)
#define UNSERIALIZE_ARRAY(member, size) \
arrayParamIn(cp, section, #member, member, size)
#define SERIALIZE_OBJPTR(objptr) paramOut(os, #objptr, (objptr)->name())
#define UNSERIALIZE_OBJPTR(objptr) \
do { \
Serializable *sptr; \
objParamIn(cp, section, #objptr, sptr); \
objptr = dynamic_cast<typeof(objptr)>(sptr); \
} while (0)
/*
* Basic support for object serialization.
*/
class Serializable
{
protected:
void nameOut(std::ostream &os);
void nameOut(std::ostream &os, const std::string &_name);
public:
Serializable() {}
virtual ~Serializable() {}
// manditory virtual function, so objects must provide names
virtual const std::string name() const = 0;
virtual void serialize(std::ostream &os) {}
virtual void unserialize(Checkpoint *cp, const std::string &section) {}
static Serializable *create(Checkpoint *cp,
const std::string &section);
static void serializeAll();
static void unserializeGlobals(Checkpoint *cp);
};
//
// A SerializableBuilder serves as an evaluation context for a set of
// parameters that describe a specific instance of a Serializable. This
// evaluation context corresponds to a section in the .ini file (as
// with the base ParamContext) plus an optional node in the
// configuration hierarchy (the configNode member) for resolving
// Serializable references. SerializableBuilder is an abstract superclass;
// derived classes specialize the class for particular subclasses of
// Serializable (e.g., BaseCache).
//
// For typical usage, see the definition of
// SerializableClass::createObject().
//
class SerializableBuilder
{
public:
SerializableBuilder() {}
virtual ~SerializableBuilder() {}
// Create the actual Serializable corresponding to the parameter
// values in this context. This function is overridden in derived
// classes to call a specific constructor for a particular
// subclass of Serializable.
virtual Serializable *create() = 0;
};
//
// An instance of SerializableClass corresponds to a class derived from
// Serializable. The SerializableClass instance serves to bind the string
// name (found in the config file) to a function that creates an
// instance of the appropriate derived class.
//
// This would be much cleaner in Smalltalk or Objective-C, where types
// are first-class objects themselves.
//
class SerializableClass
{
public:
// Type CreateFunc is a pointer to a function that creates a new
// simulation object builder based on a .ini-file parameter
// section (specified by the first string argument), a unique name
// for the object (specified by the second string argument), and
// an optional config hierarchy node (specified by the third
// argument). A pointer to the new SerializableBuilder is returned.
typedef Serializable *(*CreateFunc)(Checkpoint *cp,
const std::string &section);
static std::map<std::string,CreateFunc> *classMap;
// Constructor. For example:
//
// SerializableClass baseCacheSerializableClass("BaseCacheSerializable",
// newBaseCacheSerializableBuilder);
//
SerializableClass(const std::string &className, CreateFunc createFunc);
// create Serializable given name of class and pointer to
// configuration hierarchy node
static Serializable *createObject(Checkpoint *cp,
const std::string &section);
};
//
// Macros to encapsulate the magic of declaring & defining
// SerializableBuilder and SerializableClass objects
//
#define REGISTER_SERIALIZEABLE(CLASS_NAME, OBJ_CLASS) \
SerializableClass the##OBJ_CLASS##Class(CLASS_NAME, \
OBJ_CLASS::createForUnserialize);
class Checkpoint
{
private:
IniFile *db;
const std::string basePath;
const ConfigNode *configNode;
std::map<std::string, Serializable*> objMap;
public:
Checkpoint(const std::string &cpt_dir, const std::string &path,
const ConfigNode *_configNode);
bool find(const std::string &section, const std::string &entry,
std::string &value);
bool findObj(const std::string &section, const std::string &entry,
Serializable *&value);
bool sectionExists(const std::string &section);
// The following static functions have to do with checkpoint
// creation rather than restoration. This class makes a handy
// namespace for them though.
// Export current checkpoint directory name so other objects can
// derive filenames from it (e.g., memory). The return value is
// guaranteed to end in '/' so filenames can be directly appended.
// This function is only valid while a checkpoint is being created.
static std::string dir();
// Filename for base checkpoint file within directory.
static const char *baseFilename;
// Set up a checkpoint creation event or series of events.
static void setup(Tick when, Tick period = 0);
};
#endif // __SERIALIZE_HH__