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ircd::buffer: Always inline fundamental buffer template utils.

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This commit is contained in:
Jason Volk 2019-05-07 23:51:15 -07:00
parent bc82a5a12c
commit c3b6bba288
5 changed files with 40 additions and 14 deletions
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25
include/ircd/buffer/buffer.h
View file

@ -217,6 +217,7 @@ ircd::buffer::operator<<(std::ostream &s, const buffer<it> &buffer)
// to ensure cross-platform guarantees the zero'ing doesn't get optimized away.
#ifndef HAVE_SODIUM_H
inline size_t
__attribute__((always_inline))
ircd::buffer::zero(const mutable_buffer &buf)
{
std::memset(data(buf), 0x0, size(buf));
@ -225,12 +226,14 @@ ircd::buffer::zero(const mutable_buffer &buf)
#endif
inline void
__attribute__((always_inline))
ircd::buffer::reverse(const mutable_buffer &buf)
{
std::reverse(data(buf), data(buf) + size(buf));
}
inline size_t
__attribute__((always_inline))
ircd::buffer::reverse(const mutable_buffer &dst,
const const_buffer &src)
{
@ -266,6 +269,7 @@ ircd::buffer::copy(const mutable_buffer &dst,
}
inline size_t
__attribute__((always_inline))
ircd::buffer::move(const mutable_buffer &dst,
const const_buffer &src)
{
@ -276,6 +280,7 @@ ircd::buffer::move(const mutable_buffer &dst,
}
inline size_t
__attribute__((always_inline))
ircd::buffer::copy(const mutable_buffer &dst,
const const_buffer &src)
{
@ -286,8 +291,8 @@ ircd::buffer::copy(const mutable_buffer &dst,
}
template<class it>
it
__attribute__((stack_protect))
inline it
__attribute__((always_inline))
ircd::buffer::move(it &dest,
const it &stop,
const const_buffer &src)
@ -307,8 +312,8 @@ ircd::buffer::move(it &dest,
}
template<class it>
it
__attribute__((stack_protect))
inline it
__attribute__((always_inline))
ircd::buffer::copy(it &dest,
const it &stop,
const const_buffer &src)
@ -328,7 +333,8 @@ ircd::buffer::copy(it &dest,
}
template<class it>
ircd::buffer::buffer<it>
inline ircd::buffer::buffer<it>
__attribute__((always_inline))
ircd::buffer::operator+(const buffer<it> &buffer,
const size_t &bytes)
{
@ -344,7 +350,8 @@ ircd::buffer::operator+(const buffer<it> &buffer,
}
template<class it>
size_t
inline size_t
__attribute__((always_inline))
ircd::buffer::consume(buffer<it> &buffer,
const size_t &bytes)
{
@ -366,14 +373,16 @@ ircd::buffer::aligned(const buffer<it> &buffer,
}
template<class it>
const it &
inline const it &
__attribute__((always_inline))
ircd::buffer::data(const buffer<it> &buffer)
{
return get<0>(buffer);
}
template<class it>
size_t
inline size_t
__attribute__((always_inline))
ircd::buffer::size(const buffer<it> &buffer)
{
assert(get<0>(buffer) <= get<1>(buffer));

8
include/ircd/buffer/buffer_base.h
View file

@ -15,7 +15,7 @@
///
template<class it>
struct ircd::buffer::buffer
:std::tuple<it, it>
:std::pair<it, it>
{
using iterator = it;
using value_type = typename std::remove_pointer<iterator>::type;
@ -42,23 +42,27 @@ struct ircd::buffer::buffer
};
template<class it>
inline __attribute__((always_inline))
ircd::buffer::buffer<it>::buffer()
:buffer{nullptr, nullptr}
{}
template<class it>
inline __attribute__((always_inline))
ircd::buffer::buffer<it>::buffer(const it &start,
const size_t &size)
:buffer{start, start + size}
{}
template<class it>
inline __attribute__((always_inline, flatten))
ircd::buffer::buffer<it>::buffer(const it &start,
const it &stop)
:std::tuple<it, it>{start, stop}
:std::pair<it, it>{start, stop}
{}
template<class it>
inline __attribute__((always_inline, flatten))
ircd::buffer::buffer<it>::operator string_view()
const
{

6
include/ircd/buffer/const_buffer.h
View file

@ -31,31 +31,37 @@ struct ircd::buffer::const_buffer
};
inline
__attribute__((always_inline))
ircd::buffer::const_buffer::const_buffer(const buffer<const char *> &b)
:buffer<const char *>{b}
{}
inline
__attribute__((always_inline))
ircd::buffer::const_buffer::const_buffer(const buffer<char *> &b)
:buffer<const char *>{data(b), size(b)}
{}
inline
__attribute__((always_inline))
ircd::buffer::const_buffer::const_buffer(const mutable_buffer &b)
:buffer<const char *>{data(b), size(b)}
{}
inline
__attribute__((always_inline))
ircd::buffer::const_buffer::const_buffer(const string_view &s)
:buffer<const char *>{data(s), size(s)}
{}
template<size_t SIZE>
inline __attribute__((always_inline))
ircd::buffer::const_buffer::const_buffer(const char (&buf)[SIZE])
:buffer<const char *>{buf, SIZE}
{}
template<size_t SIZE>
inline __attribute__((always_inline))
ircd::buffer::const_buffer::const_buffer(const std::array<char, SIZE> &buf)
:buffer<const char *>{reinterpret_cast<const char *>(buf.data()), SIZE}
{}

5
include/ircd/buffer/mutable_buffer.h
View file

@ -36,6 +36,7 @@ struct ircd::buffer::mutable_buffer
};
inline
__attribute__((always_inline))
ircd::buffer::mutable_buffer::mutable_buffer(const buffer<char *> &b)
:buffer<char *>{b}
{}
@ -43,22 +44,26 @@ ircd::buffer::mutable_buffer::mutable_buffer(const buffer<char *> &b)
/// lvalue string reference offered to write through to a std::string as
/// the buffer. should be hard to bind by accident...
inline
__attribute__((always_inline))
ircd::buffer::mutable_buffer::mutable_buffer(std::string &buf)
:mutable_buffer{const_cast<char *>(buf.data()), buf.size()}
{}
inline
__attribute__((always_inline))
ircd::buffer::mutable_buffer::mutable_buffer(const std::function<void (const mutable_buffer &)> &closure)
{
closure(*this);
}
template<size_t SIZE>
inline __attribute__((always_inline, gnu_inline))
ircd::buffer::mutable_buffer::mutable_buffer(char (&buf)[SIZE])
:buffer<char *>{buf, SIZE}
{}
template<size_t SIZE>
inline __attribute__((always_inline))
ircd::buffer::mutable_buffer::mutable_buffer(std::array<char, SIZE> &buf)
:buffer<char *>{buf.data(), SIZE}
{}

10
include/ircd/string_view.h
View file

@ -156,16 +156,18 @@ struct ircd::string_view
{}
// (non-standard) our array based constructor
template<size_t SIZE>
constexpr string_view(const std::array<char, SIZE> &array)
template<size_t SIZE> constexpr
__attribute__((always_inline))
string_view(const std::array<char, SIZE> &array)
:string_view
{
array.data(), std::find(array.begin(), array.end(), '\0')
}{}
// (non-standard) our buffer based constructor
template<size_t SIZE>
constexpr string_view(const char (&buf)[SIZE])
template<size_t SIZE> constexpr
__attribute__((always_inline))
string_view(const char (&buf)[SIZE])
:string_view
{
buf, std::find(buf, buf + SIZE, '\0')