ase/loft.hh file

Namespaces

namespace Ase: The Anklang C++ API namespace.
namespace Ase::Loft: Loft - A special purpose memory allocator for lock- and obstruction-free thread progress.

struct Ase::LoftFree: A std::unique_ptr<> deleter for Loft allocations.
struct Ase::LoftConfig: Configuration for Loft allocations.
struct Ase::LoftStats: Statistics for Loft allocations.
struct Ase::Loft::AllocatorBase: Internal Helper.
template <typename T> class Ase::Loft::Allocator: Allocator for STL containers.

template <typename T> using LoftPtr = std::unique_ptr<T, LoftFree>: A std::unique_ptr<> for Loft allocations.

auto loft_alloc(size_t size, size_t align) → LoftPtr<void>: Allocate size bytes (with limited alignment support), may return a nullptr.
auto loft_bucket_size(size_t nbytes) → size_t: Calculate the real bucket size allocated for a requested size.
auto loft_calloc(size_t nelem, size_t elemsize, size_t align) → LoftPtr<void>: Allocate and 0-initialize nelem * elemsize bytes, may return a nullptr.
void loft_get_config(LoftConfig& config): Retrieve current configuration.
void loft_get_stats(LoftStats& stats): Get statistics about current Loft allocations.
auto loft_grow_preallocate(size_t preallocation_amount) → size_t: Grow the preallocated arena, issues syscalls.
template <class T, class ... Args> auto loft_make_unique(Args && ... args) → LoftPtr<T>: Construct an object T from Loft memory, wrapped in a unique_ptr.
void loft_set_config(const LoftConfig& config): Configure watermark, notification, etc.
void loft_set_notifier(const std::function<void()>& lowmem): Install obstruction free callback to notify about watermark underrun.
auto loft_stats_string(const LoftStats& stats) → String: Stringify LoftStats.