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ircd: Move a2u / pretty() suites from lex_cast to util::; start util.cc unit.

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This commit is contained in:
Jason Volk 2018-10-21 00:50:41 -07:00
parent 50acb06dcf
commit 045a944911
7 changed files with 313 additions and 279 deletions
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41
include/ircd/lex_cast.h
View file

@ -31,25 +31,6 @@ namespace ircd
// Circular static thread_local buffer
const size_t LEX_CAST_BUFS {256}; // plenty
template<class T> string_view lex_cast(const T &t);
// Binary <-> Hex conversion suite
const_buffer a2u(const mutable_buffer &out, const const_buffer &in);
string_view u2a(const mutable_buffer &out, const const_buffer &in);
std::string u2a(const const_buffer &in);
// Human readable space suite
using human_readable_size = std::tuple<uint64_t, long double, const string_view &>;
human_readable_size iec(const uint64_t &value);
human_readable_size si(const uint64_t &value);
string_view pretty(const mutable_buffer &out, const human_readable_size &);
std::string pretty(const human_readable_size &);
string_view pretty_only(const mutable_buffer &out, const human_readable_size &);
std::string pretty_only(const human_readable_size &);
// Human readable time suite (for timers and counts; otherwise see date.h)
string_view pretty_nanoseconds(const mutable_buffer &out, const long double &);
template<class r, class p> string_view pretty(const mutable_buffer &out, const duration<r, p> &);
template<class r, class p> std::string pretty(const duration<r, p> &);
}
namespace ircd
@ -271,25 +252,3 @@ ircd::try_lex_cast<std::string>(const string_view &s)
{
return true;
}
template<class rep,
class period>
std::string
ircd::pretty(const duration<rep, period> &d)
{
return util::string(32, [&d]
(const mutable_buffer &out)
{
return pretty(out, d);
});
}
template<class rep,
class period>
ircd::string_view
ircd::pretty(const mutable_buffer &out,
const duration<rep, period> &d)
{
const auto &ns(duration_cast<nanoseconds>(d));
return pretty_nanoseconds(out, ns.count());
}

51
include/ircd/util/pretty.h Normal file
View file

@ -0,0 +1,51 @@
// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_UTIL_PRETTY_H
namespace ircd::util
{
// Human readable space suite
using human_readable_size = std::tuple<uint64_t, long double, const string_view &>;
human_readable_size iec(const uint64_t &value);
human_readable_size si(const uint64_t &value);
string_view pretty(const mutable_buffer &out, const human_readable_size &);
std::string pretty(const human_readable_size &);
string_view pretty_only(const mutable_buffer &out, const human_readable_size &);
std::string pretty_only(const human_readable_size &);
// Human readable time suite (for timers and counts; otherwise see date.h)
string_view pretty_nanoseconds(const mutable_buffer &out, const long double &);
template<class r, class p> string_view pretty(const mutable_buffer &out, const duration<r, p> &);
template<class r, class p> std::string pretty(const duration<r, p> &);
}
template<class rep,
class period>
std::string
ircd::util::pretty(const duration<rep, period> &d)
{
return util::string(32, [&d]
(const mutable_buffer &out)
{
return pretty(out, d);
});
}
template<class rep,
class period>
ircd::string_view
ircd::util::pretty(const mutable_buffer &out,
const duration<rep, period> &d)
{
const auto &ns(duration_cast<nanoseconds>(d));
return pretty_nanoseconds(out, ns.count());
}

20
include/ircd/util/u2a.h Normal file
View file

@ -0,0 +1,20 @@
// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_UTIL_U2A_H
namespace ircd::util
{
// Binary <-> Hex conversion suite
const_buffer a2u(const mutable_buffer &out, const const_buffer &in);
string_view u2a(const mutable_buffer &out, const const_buffer &in);
std::string u2a(const const_buffer &in);
}

2
include/ircd/util/util.h
View file

@ -52,6 +52,8 @@ namespace ircd
#include "iterator.h"
#include "nothrow.h"
#include "what.h"
#include "u2a.h"
#include "pretty.h"
// Unsorted section
namespace ircd {

1
ircd/Makefile.am
View file

@ -90,6 +90,7 @@ libircd_la_LIBADD = \
libircd_la_SOURCES = \
allocator.cc \
exception.cc \
util.cc \
ios.cc \
lexical.cc \
tokens.cc \

238
ircd/lexical.cc
View file

@ -18,244 +18,6 @@
#include <boost/lexical_cast.hpp>
//
// misc util
//
//
// Human readable time suite
//
ircd::string_view
ircd::pretty_nanoseconds(const mutable_buffer &out,
const long double &ns)
{
static const std::array<string_view, 7> unit
{
"nanoseconds",
"microseconds",
"milliseconds",
"seconds",
"minutes",
"hours",
"days",
};
auto pos(0);
long double val(ns);
// nanoseconds -> microseconds
if(val > 1000.0)
{
val /= 1000;
++pos;
}
else goto done;
// microseconds -> milliseconds
if(val > 1000.0)
{
val /= 1000;
++pos;
}
else goto done;
// milliseconds -> seconds
if(val > 1000.0)
{
val /= 1000;
++pos;
}
else goto done;
// seconds -> minutes
if(val > 60.0)
{
val /= 60;
++pos;
}
else goto done;
// minutes -> hours
if(val > 60.0)
{
val /= 60;
++pos;
}
else goto done;
// hours -> days
if(val > 12.0)
{
val /= 12;
++pos;
}
else goto done;
done:
return fmt::sprintf
{
out, "%.2lf %s",
val,
unit.at(pos)
};
}
//
// Human readable space suite
//
std::string
ircd::pretty_only(const human_readable_size &value)
{
return util::string(32, [&value]
(const mutable_buffer &out)
{
return pretty_only(out, value);
});
}
ircd::string_view
ircd::pretty_only(const mutable_buffer &out,
const human_readable_size &value)
try
{
return fmt::sprintf
{
out, "%.2lf %s",
std::get<long double>(value),
std::get<const string_view &>(value)
};
}
catch(const std::out_of_range &e)
{
return fmt::sprintf
{
out, "%lu B",
std::get<uint64_t>(value)
};
}
std::string
ircd::pretty(const human_readable_size &value)
{
return util::string(64, [&value]
(const mutable_buffer &out)
{
return pretty(out, value);
});
}
ircd::string_view
ircd::pretty(const mutable_buffer &out,
const human_readable_size &value)
try
{
return fmt::sprintf
{
out, "%.2lf %s (%lu)",
std::get<long double>(value),
std::get<const string_view &>(value),
std::get<uint64_t>(value)
};
}
catch(const std::out_of_range &e)
{
return fmt::sprintf
{
out, "%lu B",
std::get<uint64_t>(value)
};
}
ircd::human_readable_size
ircd::iec(const uint64_t &value)
{
static const std::array<string_view, 7> unit
{
"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"
};
auto pos(0);
long double v(value);
for(; v > 1024.0; v /= 1024.0, ++pos);
return
{
value, v, unit.at(pos)
};
}
ircd::human_readable_size
ircd::si(const uint64_t &value)
{
static const std::array<string_view, 7> unit
{
"B", "KB", "MB", "GB", "TB", "PB", "EB"
};
auto pos(0);
long double v(value);
for(; v > 1000.0; v /= 1000.0, ++pos);
return
{
value, v, unit.at(pos)
};
}
//
// binary <-> hex suite
//
std::string
ircd::u2a(const const_buffer &in)
{
return string(size(in) * 2, [&in]
(const mutable_buffer &out)
{
return u2a(out, in);
});
}
ircd::string_view
ircd::u2a(const mutable_buffer &out,
const const_buffer &in)
{
char *p(data(out));
for(size_t i(0); i < size(in) && p + 2 <= end(out); ++i)
{
char tmp[3];
::snprintf(tmp, sizeof(tmp), "%02x", in[i]);
*p++ = tmp[0];
*p++ = tmp[1];
}
return { data(out), p };
}
ircd::const_buffer
ircd::a2u(const mutable_buffer &out,
const const_buffer &in)
{
const size_t len{size(in) / 2};
for(size_t i(0); i < len; ++i)
{
const char gl[3]
{
in[i * 2],
in[i * 2 + 1],
'\0'
};
out[i] = strtol(gl, nullptr, 16);
}
return { data(out), len };
}
//
// lex_cast
//
namespace ircd
{
/// The static lex_cast ring buffers are each LEX_CAST_BUFSIZE bytes;

239
ircd/util.cc Normal file
View file

@ -0,0 +1,239 @@
// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
//
// Human readable time suite
//
ircd::string_view
ircd::util::pretty_nanoseconds(const mutable_buffer &out,
const long double &ns)
{
static const std::array<string_view, 7> unit
{
"nanoseconds",
"microseconds",
"milliseconds",
"seconds",
"minutes",
"hours",
"days",
};
auto pos(0);
long double val(ns);
// nanoseconds -> microseconds
if(val > 1000.0)
{
val /= 1000;
++pos;
}
else goto done;
// microseconds -> milliseconds
if(val > 1000.0)
{
val /= 1000;
++pos;
}
else goto done;
// milliseconds -> seconds
if(val > 1000.0)
{
val /= 1000;
++pos;
}
else goto done;
// seconds -> minutes
if(val > 60.0)
{
val /= 60;
++pos;
}
else goto done;
// minutes -> hours
if(val > 60.0)
{
val /= 60;
++pos;
}
else goto done;
// hours -> days
if(val > 12.0)
{
val /= 12;
++pos;
}
else goto done;
done:
return fmt::sprintf
{
out, "%.2lf %s",
val,
unit.at(pos)
};
}
//
// Human readable space suite
//
std::string
ircd::util::pretty_only(const human_readable_size &value)
{
return util::string(32, [&value]
(const mutable_buffer &out)
{
return pretty_only(out, value);
});
}
ircd::string_view
ircd::util::pretty_only(const mutable_buffer &out,
const human_readable_size &value)
try
{
return fmt::sprintf
{
out, "%.2lf %s",
std::get<long double>(value),
std::get<const string_view &>(value)
};
}
catch(const std::out_of_range &e)
{
return fmt::sprintf
{
out, "%lu B",
std::get<uint64_t>(value)
};
}
std::string
ircd::util::pretty(const human_readable_size &value)
{
return util::string(64, [&value]
(const mutable_buffer &out)
{
return pretty(out, value);
});
}
ircd::string_view
ircd::util::pretty(const mutable_buffer &out,
const human_readable_size &value)
try
{
return fmt::sprintf
{
out, "%.2lf %s (%lu)",
std::get<long double>(value),
std::get<const string_view &>(value),
std::get<uint64_t>(value)
};
}
catch(const std::out_of_range &e)
{
return fmt::sprintf
{
out, "%lu B",
std::get<uint64_t>(value)
};
}
ircd::human_readable_size
ircd::util::iec(const uint64_t &value)
{
static const std::array<string_view, 7> unit
{
"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"
};
auto pos(0);
long double v(value);
for(; v > 1024.0; v /= 1024.0, ++pos);
return
{
value, v, unit.at(pos)
};
}
ircd::human_readable_size
ircd::util::si(const uint64_t &value)
{
static const std::array<string_view, 7> unit
{
"B", "KB", "MB", "GB", "TB", "PB", "EB"
};
auto pos(0);
long double v(value);
for(; v > 1000.0; v /= 1000.0, ++pos);
return
{
value, v, unit.at(pos)
};
}
//
// binary <-> hex suite
//
std::string
ircd::util::u2a(const const_buffer &in)
{
return string(size(in) * 2, [&in]
(const mutable_buffer &out)
{
return u2a(out, in);
});
}
ircd::string_view
ircd::util::u2a(const mutable_buffer &out,
const const_buffer &in)
{
char *p(data(out));
for(size_t i(0); i < size(in) && p + 2 <= end(out); ++i)
{
char tmp[3];
::snprintf(tmp, sizeof(tmp), "%02x", in[i]);
*p++ = tmp[0];
*p++ = tmp[1];
}
return { data(out), p };
}
ircd::const_buffer
ircd::util::a2u(const mutable_buffer &out,
const const_buffer &in)
{
const size_t len{size(in) / 2};
for(size_t i(0); i < len; ++i)
{
const char gl[3]
{
in[i * 2],
in[i * 2 + 1],
'\0'
};
out[i] = strtol(gl, nullptr, 16);
}
return { data(out), len };
}