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ircd:Ⓜ️🆔 Eliminate lambda frame from construction stack.

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This commit is contained in:
Jason Volk 2022-06-28 16:27:33 -07:00
parent 1f8eb0b4a5
commit 648f21c906
1 changed files with 32 additions and 27 deletions
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59
matrix/id.cc
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@ -485,64 +485,63 @@ ircd::m::id::id(const id::sigil &sigil,
{
}
namespace ircd::m
{
static thread_local char
tmp_buf alignas(64) [2][id::MAX_SIZE];
}
ircd::m::id::id(const enum sigil &sigil,
const mutable_buffer &buf,
const string_view &local,
const string_view &host)
:string_view{[&sigil, &buf, &local, &host]
:string_view
{
thread_local char tmp alignas(16) [2][MAX_SIZE];
static_assert(sizeof(tmp) == MAX_SIZE * 2);
const string_view src
parser(sigil, string_view
{
startswith(local, sigil)?
fmt::sprintf
{
buf, "%s%s%s",
sigil == sigil::ROOM_ALIAS?
tolower(tmp[0], local):
tolower(tmp_buf[0], local):
local,
host?
":"_sv:
string_view{},
tolower(tmp[1], host),
}
:
tolower(tmp_buf[1], host),
}:
fmt::sprintf
{
buf, "%c%s%s%s",
char(sigil),
sigil == sigil::ROOM_ALIAS?
tolower(tmp[0], local):
tolower(tmp_buf[0], local):
local,
host?
":"_sv:
string_view{},
tolower(tmp[1], host),
tolower(tmp_buf[1], host),
}
};
return parser(sigil, src);
}()}
})
}
{
}
ircd::m::id::id(const id::sigil &sigil,
const mutable_buffer &buf,
const string_view &id)
:string_view{[&sigil, &buf, &id]
:string_view
{
const string_view src
parser(sigil, string_view
{
sigil == sigil::ROOM_ALIAS?
tolower(buf, id): //XXX no null here
buffer::data(buf) != id.data()?
strlcpy(buf, id):
id
};
return parser(sigil, src);
}()}
})
}
{
}
@ -554,27 +553,28 @@ ircd::m::id::id(const enum sigil &sigil,
{
//TODO: output grammar
thread_local char namebuf[MAX_SIZE];
string_view name; switch(sigil)
{
case sigil::USER:
name = fmt::sprintf
{
namebuf, "guest%lu", rand::integer()
tmp_buf[0], "guest%lu",
rand::integer()
};
break;
case sigil::ROOM_ALIAS:
name = fmt::sprintf
{
namebuf, "%lu", rand::integer()
tmp_buf[0], "%lu",
rand::integer()
};
break;
case sigil::ROOM:
{
static const auto &dict{rand::dict::alnum};
const mutable_buffer dst{namebuf, 18};
const mutable_buffer dst{tmp_buf[0], 18};
name = rand::string(dst, dict);
break;
}
@ -582,7 +582,7 @@ ircd::m::id::id(const enum sigil &sigil,
case sigil::DEVICE:
{
static const auto &dict{rand::dict::alnum};
const mutable_buffer dst{namebuf, 10};
const mutable_buffer dst{tmp_buf[0], 10};
name = rand::string(dst, dict);
break;
}
@ -590,14 +590,19 @@ ircd::m::id::id(const enum sigil &sigil,
default:
name = fmt::sprintf
{
namebuf, "%c%lu", rand::character(), rand::integer()
tmp_buf[0], "%c%lu",
rand::character(),
rand::integer()
};
break;
};
return fmt::sprintf
{
buf, "%c%s:%s", char(sigil), name, host
buf, "%c%s:%s",
char(sigil),
name,
host
};
}()}
{