libMesh::Parameters::Parameter< T > Class Template Reference

#include <parameters.h>

Inheritance diagram for libMesh::Parameters::Parameter< T >:

Public Member Functions

const T & get () const
 
T & set ()
 
virtual std::string type () const
 
virtual void print (std::ostream &) const
 
virtual Valueclone () const
 

Static Public Member Functions

static std::string get_info ()
 
static void print_info (std::ostream &out=libMesh::out)
 
static unsigned int n_objects ()
 
static void enable_print_counter_info ()
 
static void disable_print_counter_info ()
 

Protected Types

typedef std::map< std::string,
std::pair< unsigned int,
unsigned int > > 
Counts
 

Protected Member Functions

void increment_constructor_count (const std::string &name)
 
void increment_destructor_count (const std::string &name)
 

Static Protected Attributes

static Counts _counts
 
static Threads::atomic
< unsigned int > 
_n_objects
 
static Threads::spin_mutex _mutex
 
static bool _enable_print_counter = true
 

Private Attributes

_value
 

Detailed Description

template<typename T>
class libMesh::Parameters::Parameter< T >

Concrete definition of a parameter value for a specified type.

Definition at line 204 of file parameters.h.

Member Typedef Documentation

typedef std::map<std::string, std::pair<unsigned int, unsigned int> > libMesh::ReferenceCounter::Counts
protectedinherited

Data structure to log the information. The log is identified by the class name.

Definition at line 113 of file reference_counter.h.

Member Function Documentation

template<typename T >
Parameters::Value * libMesh::Parameters::Parameter< T >::clone ( ) const
inlinevirtual

Clone this value. Useful in copy-construction.

Implements libMesh::Parameters::Value.

Definition at line 305 of file parameters.h.

References libMesh::Parameters::Parameter< T >::_value, and libMesh::libmesh_assert().

306 {
307  // No good for Solaris C++! - BSK
308 // Parameters::Parameter<T>
309 // *copy = new Parameters::Parameter<T>;
310  Parameter<T>
311  *copy = new Parameter<T>;
312 
313  libmesh_assert(copy);
314 
315  copy->_value = _value;
316 
317  return copy;
318 }
void libMesh::ReferenceCounter::disable_print_counter_info ( )
staticinherited

Definition at line 106 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

107 {
108  _enable_print_counter = false;
109  return;
110 }
void libMesh::ReferenceCounter::enable_print_counter_info ( )
staticinherited

Methods to enable/disable the reference counter output from print_info()

Definition at line 100 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

101 {
102  _enable_print_counter = true;
103  return;
104 }
template<typename T>
const T& libMesh::Parameters::Parameter< T >::get ( ) const
inline
Returns
a read-only reference to the parameter value.

Definition at line 211 of file parameters.h.

References libMesh::Parameters::Parameter< T >::_value.

211 { return _value; }
std::string libMesh::ReferenceCounter::get_info ( )
staticinherited

Gets a string containing the reference information.

Definition at line 47 of file reference_counter.C.

References libMesh::ReferenceCounter::_counts, and libMesh::Quality::name().

Referenced by libMesh::ReferenceCounter::print_info().

48 {
49 #if defined(LIBMESH_ENABLE_REFERENCE_COUNTING) && defined(DEBUG)
50 
51  std::ostringstream oss;
52 
53  oss << '\n'
54  << " ---------------------------------------------------------------------------- \n"
55  << "| Reference count information |\n"
56  << " ---------------------------------------------------------------------------- \n";
57 
58  for (Counts::iterator it = _counts.begin();
59  it != _counts.end(); ++it)
60  {
61  const std::string name(it->first);
62  const unsigned int creations = it->second.first;
63  const unsigned int destructions = it->second.second;
64 
65  oss << "| " << name << " reference count information:\n"
66  << "| Creations: " << creations << '\n'
67  << "| Destructions: " << destructions << '\n';
68  }
69 
70  oss << " ---------------------------------------------------------------------------- \n";
71 
72  return oss.str();
73 
74 #else
75 
76  return "";
77 
78 #endif
79 }
void libMesh::ReferenceCounter::increment_constructor_count ( const std::string &  name)
inlineprotectedinherited

Increments the construction counter. Should be called in the constructor of any derived class that will be reference counted.

Definition at line 163 of file reference_counter.h.

References libMesh::ReferenceCounter::_counts, libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

Referenced by libMesh::ReferenceCountedObject< RBParametrized >::ReferenceCountedObject().

164 {
165  Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
166  std::pair<unsigned int, unsigned int>& p = _counts[name];
167 
168  p.first++;
169 }
void libMesh::ReferenceCounter::increment_destructor_count ( const std::string &  name)
inlineprotectedinherited

Increments the destruction counter. Should be called in the destructor of any derived class that will be reference counted.

Definition at line 176 of file reference_counter.h.

References libMesh::ReferenceCounter::_counts, libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

Referenced by libMesh::ReferenceCountedObject< RBParametrized >::~ReferenceCountedObject().

177 {
178  Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
179  std::pair<unsigned int, unsigned int>& p = _counts[name];
180 
181  p.second++;
182 }
static unsigned int libMesh::ReferenceCounter::n_objects ( )
inlinestaticinherited

Prints the number of outstanding (created, but not yet destroyed) objects.

Definition at line 79 of file reference_counter.h.

References libMesh::ReferenceCounter::_n_objects.

80  { return _n_objects; }
template<typename T >
void libMesh::Parameters::Parameter< T >::print ( std::ostream &  os) const
inlinevirtual

Prints the parameter value to the specified stream.

Implements libMesh::Parameters::Value.

Definition at line 297 of file parameters.h.

References libMesh::print_helper().

298 {
299  // Call helper function overloaded for basic scalar and vector types
300  print_helper(os, static_cast<const T*>(&_value));
301 }
void libMesh::ReferenceCounter::print_info ( std::ostream &  out = libMesh::out)
staticinherited

Prints the reference information, by default to libMesh::out.

Definition at line 88 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter, and libMesh::ReferenceCounter::get_info().

89 {
91 }
template<typename T>
T& libMesh::Parameters::Parameter< T >::set ( )
inline
Returns
a writeable reference to the parameter value.

Definition at line 216 of file parameters.h.

References libMesh::Parameters::Parameter< T >::_value.

216 { return _value; }
template<typename T >
std::string libMesh::Parameters::Parameter< T >::type ( ) const
inlinevirtual

String identifying the type of parameter stored.

Implements libMesh::Parameters::Value.

Definition at line 289 of file parameters.h.

References libMesh::demangle(), and libMesh::Quality::name().

290 {
291  return demangle(typeid(T).name());
292 }

Member Data Documentation

ReferenceCounter::Counts libMesh::ReferenceCounter::_counts
staticprotectedinherited
bool libMesh::ReferenceCounter::_enable_print_counter = true
staticprotectedinherited

Flag to control whether reference count information is printed when print_info is called.

Definition at line 137 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::disable_print_counter_info(), libMesh::ReferenceCounter::enable_print_counter_info(), and libMesh::ReferenceCounter::print_info().

Threads::spin_mutex libMesh::ReferenceCounter::_mutex
staticprotectedinherited

Mutual exclusion object to enable thread-safe reference counting.

Definition at line 131 of file reference_counter.h.

Threads::atomic< unsigned int > libMesh::ReferenceCounter::_n_objects
staticprotectedinherited

The number of objects. Print the reference count information when the number returns to 0.

Definition at line 126 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::n_objects(), libMesh::ReferenceCounter::ReferenceCounter(), and libMesh::ReferenceCounter::~ReferenceCounter().

template<typename T>
T libMesh::Parameters::Parameter< T >::_value
private

The documentation for this class was generated from the following file:

Site Created By: libMesh Developers
Last modified: February 07 2014 16:58:01 UTC

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