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Code Issues Releases Wiki Activity

ircd::db: Add nothrow column construction overload.

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This commit is contained in:
Jason Volk 2019-01-16 13:21:54 -08:00
parent 4ded053406
commit 918bc95d1a
2 changed files with 26 additions and 4 deletions
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1
include/ircd/db/column.h
View file

@ -149,6 +149,7 @@ struct ircd::db::column
column(database::column &c);
column(database &, const string_view &column);
column(database &, const string_view &column, const std::nothrow_t);
column() = default;
};

29
ircd/db.cc
View file

@ -10079,15 +10079,36 @@ ircd::db::has(column &column,
// column
//
ircd::db::column::column(database::column &c)
:c{&c}
ircd::db::column::column(database &d,
const string_view &column_name,
const std::nothrow_t)
:c{[&d, &column_name]
{
const int32_t cfid
{
d.cfid(std::nothrow, column_name)
};
return cfid >= 0?
&d[cfid]:
nullptr;
}()}
{
}
ircd::db::column::column(database &d,
const string_view &column_name)
:c{&d[column_name]}
{}
:column
{
d[column_name]
}
{
}
ircd::db::column::column(database::column &c)
:c{&c}
{
}
void
ircd::db::column::operator()(const delta &delta,