StarBlockFactory
#include <starblockfactory.h>
Public Member Functions | |
~StarBlockFactory () | |
int | freeAll () |
int | freeUnused () |
std::shared_ptr< StarBlock > | getBlock () |
int | getBlockCount () const |
bool | markFirst (std::shared_ptr< StarBlock > &block) |
bool | markNext (std::shared_ptr< StarBlock > &after, std::shared_ptr< StarBlock > &block) |
void | printStructure () const |
Static Public Member Functions | |
static StarBlockFactory * | Instance () |
Public Attributes | |
quint32 | drawID |
Detailed Description
A factory that creates StarBlocks and recycles them in an LRU Cache.
- Version
- 0.1
Definition at line 21 of file starblockfactory.h.
Constructor & Destructor Documentation
◆ ~StarBlockFactory()
StarBlockFactory::~StarBlockFactory | ( | ) |
Destructor Deletes the linked list that maintains the Cache, sets the pointer to nullptr.
Definition at line 35 of file starblockfactory.cpp.
Member Function Documentation
◆ freeAll()
|
inline |
Frees all StarBlocks that are in the cache.
- Returns
- The number of StarBlocks freed
Definition at line 73 of file starblockfactory.h.
◆ freeUnused()
int StarBlockFactory::freeUnused | ( | ) |
Frees all StarBlocks that are not used in this draw cycle.
- Returns
- The number of StarBlocks freed
Definition at line 287 of file starblockfactory.cpp.
◆ getBlock()
std::shared_ptr< StarBlock > StarBlockFactory::getBlock | ( | ) |
Return a StarBlock available for use.
This method first checks if there are any cached StarBlocks that are not in use. If such a StarBlock is found, it returns the same for use. Else it freshly allocates a StarBlock and returns the same. It also moves the StarBlock to the front, marking it as the most recently used. If the StarBlock had a parent StarBlockList, this method detaches the StarBlock from the StarBlockList
- Returns
- A StarBlock that is available for use
Definition at line 42 of file starblockfactory.cpp.
◆ getBlockCount()
|
inline |
Returns the number of StarBlocks currently produced.
- Returns
- Number of StarBlocks currently allocated
Definition at line 67 of file starblockfactory.h.
◆ Instance()
|
static |
Definition at line 19 of file starblockfactory.cpp.
◆ markFirst()
bool StarBlockFactory::markFirst | ( | std::shared_ptr< StarBlock > & | block | ) |
Mark a StarBlock as most recently used and sync its drawID with the current drawID.
- Returns
- true on success, false if the StarBlock supplied was not on our list at all
Definition at line 82 of file starblockfactory.cpp.
◆ markNext()
bool StarBlockFactory::markNext | ( | std::shared_ptr< StarBlock > & | after, |
std::shared_ptr< StarBlock > & | block ) |
Rank a given StarBlock after another given StarBlock in the LRU list and sync its drawID with the current drawID.
- Parameters
-
after The block after which 'block' should be put block The block to mark for use
- Returns
- true on success, false on failure
Definition at line 122 of file starblockfactory.cpp.
◆ printStructure()
void StarBlockFactory::printStructure | ( | ) | const |
Prints the structure of the cache, for debugging.
Definition at line 257 of file starblockfactory.cpp.
Member Data Documentation
◆ drawID
quint32 StarBlockFactory::drawID |
Definition at line 86 of file starblockfactory.h.
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