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Reference documentation for deal.II version 9.6.0
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#include <deal.II/algorithms/any_data.h>
Public Member Functions | |
AnyData ()=default | |
Default constructor for empty object. | |
unsigned int | size () const |
Number of stored data objects. | |
template<typename type > | |
void | add (type entry, const std::string &name) |
Add a new data object. | |
void | merge (const AnyData &other) |
Merge the data of another AnyData to the end of this object. | |
template<typename type > | |
type | entry (const std::string &name) |
Access to stored data object by name. | |
template<typename type > | |
type | entry (const std::string &name) const |
Read-only access to stored data object by name. | |
template<typename type > | |
type | read (const std::string &name) const |
Dedicated read only access by name. | |
template<typename type > | |
const type * | read_ptr (const std::string &name) const |
Dedicated read only access by name for pointer data. | |
template<typename type > | |
const type * | try_read_ptr (const std::string &name) const |
template<typename type > | |
const type * | try_read (const std::string &name) const |
Dedicated read only access by name without exceptions. | |
template<typename type > | |
type | entry (const unsigned int i) |
template<typename type > | |
type | entry (const unsigned int i) const |
Read-only access to stored data object by index. | |
template<typename type > | |
type | read (const unsigned int i) const |
Dedicated read only access. | |
template<typename type > | |
const type * | read_ptr (const unsigned int i) const |
Dedicated read only access to pointer object. | |
template<typename type > | |
const type * | try_read_ptr (const unsigned int i) const |
Dedicated read only access to pointer object without exception. | |
template<typename type > | |
const type * | try_read (const unsigned int i) const |
Dedicated read only access without exception. | |
const std::string & | name (const unsigned int i) const |
Name of object at index. | |
unsigned int | find (const std::string &name) const |
Find index of a named object. | |
unsigned int | try_find (const std::string &name) const |
Try to find index of a named object. | |
template<typename type > | |
bool | is_type (const unsigned int i) const |
Find out if object is of a certain type. | |
template<typename StreamType > | |
void | list (StreamType &os) const |
List the contents to a stream. | |
template<class Archive > | |
void | serialize (Archive &ar, const unsigned int version) |
Subscriptor functionality | |
Classes derived from Subscriptor provide a facility to subscribe to this object. This is mostly used by the SmartPointer class. | |
void | subscribe (std::atomic< bool > *const validity, const std::string &identifier="") const |
void | unsubscribe (std::atomic< bool > *const validity, const std::string &identifier="") const |
unsigned int | n_subscriptions () const |
template<typename StreamType > | |
void | list_subscribers (StreamType &stream) const |
void | list_subscribers () const |
Static Public Member Functions | |
static ::ExceptionBase & | ExcNameNotFound (std::string arg1) |
An entry with this name does not exist in the AnyData object. | |
static ::ExceptionBase & | ExcTypeMismatch (std::string arg1, std::string arg2) |
The requested type and the stored type are different. | |
static ::ExceptionBase & | ExcNameMismatch (int arg1, std::string arg2) |
static ::ExceptionBase & | ExcInUse (int arg1, std::string arg2, std::string arg3) |
static ::ExceptionBase & | ExcNoSubscriber (std::string arg1, std::string arg2) |
Private Types | |
using | map_value_type = decltype(counter_map)::value_type |
using | map_iterator = decltype(counter_map)::iterator |
Private Member Functions | |
void | check_no_subscribers () const noexcept |
Private Attributes | |
std::vector< std::any > | data |
The stored data. | |
std::vector< std::string > | names |
The names of the stored data. | |
std::atomic< unsigned int > | counter |
std::map< std::string, unsigned int > | counter_map |
std::vector< std::atomic< bool > * > | validity_pointers |
const std::type_info * | object_info |
Static Private Attributes | |
static std::mutex | mutex |
Store any amount of any type of data accessible by an identifier string.
Definition at line 35 of file any_data.h.
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privateinherited |
The data type used in counter_map.
Definition at line 229 of file subscriptor.h.
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privateinherited |
The iterator type used in counter_map.
Definition at line 234 of file subscriptor.h.
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default |
Default constructor for empty object.
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inline |
Number of stored data objects.
Definition at line 221 of file any_data.h.
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inline |
Add a new data object.
Definition at line 430 of file any_data.h.
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inline |
Merge the data of another AnyData to the end of this object.
Definition at line 439 of file any_data.h.
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inline |
Access to stored data object by name.
Find the object with given name, try to convert it to type
and return it. This function throws an exception if either the name does not exist or if the conversion fails. If such an exception is not desired, use try_read() instead.
Definition at line 349 of file any_data.h.
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inline |
Read-only access to stored data object by name.
Find the object with given name, try to convert it to type
and return it. This function throws an exception if either the name does not exist or if the conversion fails. If such an exception is not desired, use try_read() instead.
Definition at line 360 of file any_data.h.
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inline |
Dedicated read only access by name.
For a constant object, this function equals entry(). For a non-const object, it forces read only access to the data. In particular, it throws an exception if the object is not found or cannot be converted to type. If such an exception is not desired, use try_read() instead.
Definition at line 372 of file any_data.h.
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inline |
Dedicated read only access by name for pointer data.
If the stored data object is a pointer to a constant object, the logic of access becomes fairly complicated. Namely, the standard read function may fail, depending on whether it was a const pointer or a regular pointer. This function fixes the logic and ascertains that the object does not become mutable by accident.
Definition at line 383 of file any_data.h.
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inline |
Perform the same action as read_ptr(), but do not throw an exception if the pointer does not exist. Return a null pointer instead.
Definition at line 397 of file any_data.h.
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inline |
Dedicated read only access by name without exceptions.
This function tries to find the name in the list and return a pointer to the associated object. If either the name is not found or the object cannot be converted to the return type, a null pointer is returned.
Definition at line 412 of file any_data.h.
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inline |
Access to stored data object by index.
Definition at line 230 of file any_data.h.
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inline |
Read-only access to stored data object by index.
Definition at line 242 of file any_data.h.
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inline |
Dedicated read only access.
Definition at line 256 of file any_data.h.
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inline |
Dedicated read only access to pointer object.
Definition at line 270 of file any_data.h.
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inline |
Dedicated read only access to pointer object without exception.
Definition at line 284 of file any_data.h.
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inline |
Dedicated read only access without exception.
Definition at line 298 of file any_data.h.
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inline |
Name of object at index.
Definition at line 309 of file any_data.h.
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inline |
Find index of a named object.
Try to find the object and return its index in the list. Throw an exception if the object has not been found.
Definition at line 330 of file any_data.h.
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inline |
Try to find index of a named object.
Try to find the object and return its index in the list. returns numbers::invalid_unsigned_int if the name was not found.
Definition at line 317 of file any_data.h.
Find out if object is of a certain type.
Definition at line 341 of file any_data.h.
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inline |
List the contents to a stream.
Definition at line 451 of file any_data.h.
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inherited |
Subscribes a user of the object by storing the pointer validity
. The subscriber may be identified by text supplied as identifier
.
Definition at line 135 of file subscriptor.cc.
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inherited |
Unsubscribes a user from the object.
identifier
and the validity
pointer must be the same as the one supplied to subscribe(). Definition at line 155 of file subscriptor.cc.
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inlineinherited |
Return the present number of subscriptions to this object. This allows to use this class for reference counted lifetime determination where the last one to unsubscribe also deletes the object.
Definition at line 300 of file subscriptor.h.
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inlineinherited |
List the subscribers to the input stream
.
Definition at line 317 of file subscriptor.h.
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inherited |
List the subscribers to deallog
.
Definition at line 203 of file subscriptor.cc.
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inlineinherited |
Read or write the data of this object to or from a stream for the purpose of serialization using the BOOST serialization library.
This function does not actually serialize any of the member variables of this class. The reason is that what this class stores is only who subscribes to this object, but who does so at the time of storing the contents of this object does not necessarily have anything to do with who subscribes to the object when it is restored. Consequently, we do not want to overwrite the subscribers at the time of restoring, and then there is no reason to write the subscribers out in the first place.
Definition at line 309 of file subscriptor.h.
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privatenoexceptinherited |
Check that there are no objects subscribing to this object. If this check passes then it is safe to destroy the current object. It this check fails then this function will either abort or print an error message to deallog (by using the AssertNothrow mechanism), but will not throw an exception.
Definition at line 52 of file subscriptor.cc.
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private |
The stored data.
Definition at line 215 of file any_data.h.
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private |
The names of the stored data.
Definition at line 217 of file any_data.h.
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mutableprivateinherited |
Store the number of objects which subscribed to this object. Initially, this number is zero, and upon destruction it shall be zero again (i.e. all objects which subscribed should have unsubscribed again).
The creator (and owner) of an object is counted in the map below if HE manages to supply identification.
We use the mutable
keyword in order to allow subscription to constant objects also.
This counter may be read from and written to concurrently in multithreaded code: hence we use the std::atomic
class template.
Definition at line 218 of file subscriptor.h.
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mutableprivateinherited |
In this map, we count subscriptions for each different identification string supplied to subscribe().
Definition at line 224 of file subscriptor.h.
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mutableprivateinherited |
In this vector, we store pointers to the validity bool in the SmartPointer objects that subscribe to this class.
Definition at line 240 of file subscriptor.h.
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mutableprivateinherited |
Pointer to the typeinfo object of this object, from which we can later deduce the class name. Since this information on the derived class is neither available in the destructor, nor in the constructor, we obtain it in between and store it here.
Definition at line 248 of file subscriptor.h.
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staticprivateinherited |
A mutex used to ensure data consistency when accessing the mutable
members of this class. This lock is used in the subscribe() and unsubscribe() functions, as well as in list_subscribers()
.
Definition at line 271 of file subscriptor.h.