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construct/ircd/stats.cc

79 lines
1.3 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 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.
decltype(ircd::stats::items)
ircd::stats::items
{};
std::ostream &
ircd::stats::operator<<(std::ostream &s, const item &item)
{
s << static_cast<long long>(item.val);
return s;
}
//
// item
//
decltype(ircd::stats::item::NAME_MAX_LEN)
ircd::stats::item::NAME_MAX_LEN
{
127
};
//
// item::item
//
ircd::stats::item::item(const json::members &opts)
:feature_
{
opts
}
,feature
{
feature_
}
,name
{
unquote(feature.at("name"))
}
,val
{
feature.get<long>("default", 0L)
}
{
if(name.size() > NAME_MAX_LEN)
throw error
{
"Stats item '%s' name length:%zu exceeds max:%zu",
name,
name.size(),
NAME_MAX_LEN
};
if(!items.emplace(name, this).second)
throw error
{
"Stats item named '%s' already exists", name
};
}
ircd::stats::item::~item()
noexcept
{
if(name)
{
const auto it{items.find(name)};
assert(data(it->first) == data(name));
items.erase(it);
}
}