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Code Issues Releases Wiki Activity

ircd::buffer: de-template required conversions; cleanup.

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This commit is contained in:
Jason Volk 2017-09-30 19:11:09 -07:00
parent b18413e0ed
commit c91c1e39e8
1 changed files with 33 additions and 57 deletions
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90
include/ircd/buffer.h
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@ -62,6 +62,10 @@ namespace ircd::buffer
template<template<class> class I> using const_raw_buffers = I<const_raw_buffer>;
template<template<class> class I> using mutable_raw_buffers = I<mutable_raw_buffer>;
// Preconstructed null buffers
extern const mutable_buffer null_buffer;
extern const ilist<mutable_buffer> null_buffers;
// Single buffer iteration of contents
template<class it> const it &begin(const buffer<it> &buffer);
template<class it> const it &end(const buffer<it> &buffer);
@ -74,22 +78,18 @@ namespace ircd::buffer
template<class it> size_t size(const buffer<it> &buffer);
template<class it> const it &data(const buffer<it> &buffer);
template<class it> size_t consume(buffer<it> &buffer, const size_t &bytes);
template<class it> char *copy(char *&dest, char *const &stop, const buffer<it> &buffer);
template<class it> size_t copy(char *const &dest, const size_t &max, const buffer<it> &buffer);
template<class it> size_t copy(const mutable_buffer &dst, const buffer<it> &src);
size_t copy(const mutable_buffer &dst, const string_view &src);
template<class it> std::ostream &operator<<(std::ostream &s, const buffer<it> &buffer);
template<class it> it copy(it &dest, const it &stop, const const_raw_buffer &);
template<class it> size_t copy(const it &dest, const size_t &max, const const_raw_buffer &buffer);
size_t copy(const mutable_raw_buffer &dst, const const_raw_buffer &src);
// Iterable of buffers tools
template<template<class> class I, class T> size_t size(const I<T> &buffers);
template<template<class> class I, class T> char *copy(char *&dest, char *const &stop, const I<T> &buffer);
template<template<class> class I, class T> size_t copy(char *const &dest, const size_t &max, const I<T> &buffer);
template<template<class> class I, class T> size_t copy(const mutable_raw_buffer &, const I<T> &buffer);
template<template<class> class I, class T> size_t consume(I<T> &buffers, const size_t &bytes);
template<template<class> class I, class T> std::ostream &operator<<(std::ostream &s, const I<T> &buffers);
// Preconstructed null buffers
extern const mutable_buffer null_buffer;
extern const ilist<mutable_buffer> null_buffers;
// Convenience copy to stream
template<class it> std::ostream &operator<<(std::ostream &s, const buffer<it> &buffer);
template<template<class> class I, class T> std::ostream &operator<<(std::ostream &s, const I<T> &buffers);
}
// Export these important aliases down to main ircd namespace
@ -377,28 +377,12 @@ template<template<class>
class buffers,
class T>
size_t
ircd::buffer::copy(char *const &dest,
const size_t &max,
ircd::buffer::copy(const mutable_raw_buffer &dest,
const buffers<T> &b)
{
size_t ret(0);
for(const T &b : b)
ret += copy(dest + ret, max - ret, b);
return ret;
}
template<template<class>
class buffers,
class T>
char *
ircd::buffer::copy(char *&dest,
char *const &stop,
const buffers<T> &b)
{
char *const ret(dest);
for(const T &b : b)
copy(dest, stop, b);
ret += copy(data(dest) + ret, size(dest) - ret, b);
return ret;
}
@ -425,48 +409,40 @@ ircd::buffer::operator<<(std::ostream &s, const buffer<it> &buffer)
}
inline size_t
ircd::buffer::copy(const mutable_buffer &dst,
const string_view &s)
ircd::buffer::copy(const mutable_raw_buffer &dst,
const const_raw_buffer &src)
{
return copy(dst, const_buffer{s});
auto e{begin(dst)};
copy(e, end(dst), src);
return std::distance(begin(dst), e);
}
template<class it>
size_t
ircd::buffer::copy(const mutable_buffer &dst,
const buffer<it> &src)
{
auto e(begin(dst));
auto b(copy(e, end(dst), src));
return std::distance(b, e);
}
template<class it>
size_t
ircd::buffer::copy(char *const &dest,
ircd::buffer::copy(const it &dest,
const size_t &max,
const buffer<it> &buffer)
const const_raw_buffer &src)
{
if(!max)
return 0;
char *out(dest);
char *const stop(dest + max - 1);
copy(out, stop, buffer);
it out{dest};
const it stop{dest + max - 1};
copy(out, stop, const_raw_buffer{src});
*out = '\0';
return std::distance(dest, out);
}
template<class it>
char *
ircd::buffer::copy(char *&dest,
char *const &stop,
const buffer<it> &buffer)
it
ircd::buffer::copy(it &dest,
const it &stop,
const const_raw_buffer &src)
{
char *const ret(dest);
const it ret{dest};
const size_t remain(stop - dest);
dest += std::min(size(buffer), remain);
memcpy(ret, data(buffer), dest - ret);
dest += std::min(size(src), remain);
memcpy(ret, data(src), dest - ret);
return ret;
}
@ -540,19 +516,19 @@ template<class it>
ircd::buffer::buffer<it>::operator std::string()
const
{
return { get<0>(*this), size(*this) };
return { reinterpret_cast<const char *>(data(*this)), size(*this) };
}
template<class it>
ircd::buffer::buffer<it>::operator std::string_view()
const
{
return { get<0>(*this), size(*this) };
return { reinterpret_cast<const char *>(data(*this)), size(*this) };
}
template<class it>
ircd::buffer::buffer<it>::operator string_view()
const
{
return { get<0>(*this), get<1>(*this) };
return { reinterpret_cast<const char *>(data(*this)), size(*this) };
}