Inherited by object_cache< T, TFactory, MaxBytes >::cache_pool.
Inheritance diagram for dynpool:
Derives from abstract pool_of_blocks. Allocates blocks, using mutexes for thread-safety, from an underlying contiguous chunk of memory. The underlying chunk can be extended but it remains contiguous.
The underlying chunk is managed by the class dynarray, which uses mmap. Each dynpool has its own dynarray, so it gets its own mmapped chunk.
When blocks are released back to the dynpool, they are stuffed into a freelist but they are never given back to the dynarray in any sense.
Each heap of typed objects shares a static(sic) dynpool for that type (well, for that block_pool<T> specialization, of which there *could be* duplicates for a given T, depending on the template structure of the client code);
Definition at line 104 of file block_alloc.h.
Public Member Functions
|virtual bool||validate_pointer (void *ptr)|
|Check that ptr falls in the range of the single underlying dynarray (mmapped range). Print a message to stderr and return false if not. Return true if OK. |
|size_t||capacity () const|
|Return the max size of the underlying contiguous dynarray. This is not the current size but only the maximum size to which it could possibly grow. |
|size_t||freelist_size () const|
|Return the number of items (blocks of chips) on the freelist. |
Protected Member Functions
|size_t||_size () const|
|mblock *||_at (size_t i)|