lib.cpumask Module Reference

Data Structures
class	lib::cpumask
	A fixed-capacity, SMP-aware set of CPU identifiers. More...

Functions
auto	any () const noexcept -> bool
	Returns true if the set is non-empty.
static constexpr auto	capacity () noexcept -> usize
	Maximum number of CPUs this mask can represent.
auto	clear (usize cpu, memory_order order=memory_order::seq_cst) noexcept -> void
	Atomically remove a CPU from the set.
auto	clear_relaxed (usize cpu) noexcept -> void
	Non-atomically remove a CPU (use only when externally serialized).
auto	count () const noexcept -> usize
	Number of CPUs currently in the set.
auto	first_set () const noexcept -> std::optional< usize >
	Index of the lowest-numbered member.
template<typename Fn>
auto	for_each (Fn &&fn, memory_order confirm=memory_order::acquire) const noexcept -> void
	Invoke fn for every member CPU, in ascending id order.
auto	next_set (usize after) const noexcept -> std::optional< usize >
	Index of the lowest-numbered member strictly after after.
auto	none () const noexcept -> bool
	Returns true if the set is empty.
auto	reset () noexcept -> void
	Remove every CPU from the set.
auto	set (usize cpu, memory_order order=memory_order::seq_cst) noexcept -> void
	Atomically add a CPU to the set.
auto	set_relaxed (usize cpu) noexcept -> void
	Non-atomically add a CPU (use only when externally serialized).
auto	test (usize cpu, memory_order order=memory_order::relaxed) const noexcept -> bool
	Atomically test whether a CPU is in the set.

Files
file	lib/cpumask.cxxm
	Fixed-capacity CPU set primitive built on lib::static_bitmap.