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Code Issues Releases Wiki Activity

ircd::allocator: Fix fixed allocator template name conflicts.

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This commit is contained in:
Jason Volk 2018-11-04 17:54:09 -08:00
parent 2914487aad
commit 2d2e708264
1 changed files with 33 additions and 20 deletions
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53
include/ircd/allocator.h
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@ -111,22 +111,22 @@ struct ircd::allocator::state
/// template as we are here.
///
template<class T,
size_t max>
size_t MAX>
struct ircd::allocator::fixed
:state
{
struct allocator;
using value = std::aligned_storage<sizeof(T), alignof(T)>;
std::array<word_t, max / 8> avail {{0}};
std::array<typename value::type, max> buf;
std::array<word_t, MAX / 8> avail {{0}};
std::array<typename value::type, MAX> buf;
public:
allocator operator()();
operator allocator();
fixed()
:state{max, avail.data()}
:state{MAX, avail.data()}
{}
};
@ -139,8 +139,8 @@ struct ircd::allocator::fixed
/// at its construction.
///
template<class T,
size_t size>
struct ircd::allocator::fixed<T, size>::allocator
size_t SIZE>
struct ircd::allocator::fixed<T, SIZE>::allocator
{
using value_type = T;
using pointer = T *;
@ -153,14 +153,25 @@ struct ircd::allocator::fixed<T, size>::allocator
fixed *s;
public:
template<class U, size_t S> struct rebind
template<class U> struct rebind
{
using other = typename fixed<U, S>::allocator;
using other = typename fixed<U, SIZE>::allocator;
};
size_type max_size() const { return size; }
auto address(reference x) const { return &x; }
auto address(const_reference x) const { return &x; }
size_type max_size() const
{
return SIZE;
}
auto address(reference x) const
{
return &x;
}
auto address(const_reference x) const
{
return &x;
}
pointer allocate(const size_type &n, const const_pointer &hint = nullptr)
{
@ -175,10 +186,12 @@ struct ircd::allocator::fixed<T, size>::allocator
s->state::deallocate(p - base, n);
}
template<class U, size_t S>
allocator(const typename fixed<U, S>::allocator &) noexcept
:s{reinterpret_cast<fixed *>(s.s)}
{}
template<class U, size_t OTHER_SIZE>
allocator(const typename fixed<U, OTHER_SIZE>::allocator &) noexcept
:s{reinterpret_cast<fixed<T, SIZE> *>(s.s)}
{
static_assert(OTHER_SIZE == SIZE);
}
allocator(fixed &s) noexcept
:s{&s}
@ -199,16 +212,16 @@ struct ircd::allocator::fixed<T, size>::allocator
};
template<class T,
size_t size>
typename ircd::allocator::fixed<T, size>::allocator
ircd::allocator::fixed<T, size>::operator()()
size_t SIZE>
typename ircd::allocator::fixed<T, SIZE>::allocator
ircd::allocator::fixed<T, SIZE>::operator()()
{
return { *this };
}
template<class T,
size_t size>
ircd::allocator::fixed<T, size>::operator
size_t SIZE>
ircd::allocator::fixed<T, SIZE>::operator
allocator()
{
return { *this };