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ircd::buffer: Add padding bool constexpr; minor cleanup.

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This commit is contained in:
Jason Volk 2022-02-23 17:11:42 -08:00
parent 6843d7a98d
commit c92481475f
1 changed files with 16 additions and 7 deletions
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23
include/ircd/buffer/buffer.h
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@ -59,9 +59,10 @@ namespace ircd::buffer
extern const ilist<mutable_buffer> null_buffers;
// Alignment constant expressions
constexpr bool aligned(const uintptr_t &, size_t alignment);
constexpr size_t padding(const size_t &size, size_t alignment);
constexpr size_t pad_to(const size_t &size, const size_t &alignment);
constexpr bool padded(const size_t, size_t alignment);
constexpr bool aligned(const uintptr_t, size_t alignment);
constexpr size_t padding(const size_t size, size_t alignment);
constexpr size_t pad_to(const size_t size, const size_t alignment);
constexpr uintptr_t align(uintptr_t, size_t alignment);
constexpr uintptr_t align_up(uintptr_t, size_t alignment);
@ -445,14 +446,14 @@ ircd::buffer::align(uintptr_t ptr,
}
constexpr size_t
ircd::buffer::pad_to(const size_t &size,
const size_t &alignment)
ircd::buffer::pad_to(const size_t size,
const size_t alignment)
{
return size + padding(size, alignment);
}
constexpr size_t
ircd::buffer::padding(const size_t &size,
ircd::buffer::padding(const size_t size,
size_t alignment)
{
alignment = std::max(alignment, 1UL);
@ -460,9 +461,17 @@ ircd::buffer::padding(const size_t &size,
}
constexpr bool
ircd::buffer::aligned(const uintptr_t &ptr,
ircd::buffer::aligned(const uintptr_t ptr,
size_t alignment)
{
alignment = std::max(alignment, 1UL);
return ptr % alignment == 0;
}
constexpr bool
ircd::buffer::padded(const size_t size,
size_t alignment)
{
alignment = std::max(alignment, 1UL);
return size % alignment == 0;
}