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ircd::db: Wrap interface to get db's file list.

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This commit is contained in:
Jason Volk 2018-04-03 11:44:57 -07:00
parent 1dc2daa5e9
commit 2bce600a60
2 changed files with 31 additions and 0 deletions
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2
include/ircd/db/database/database.h
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@ -18,6 +18,8 @@ namespace ircd::db
// General information
const std::string &name(const database &);
uint64_t sequence(const database &); // Latest sequence number
std::vector<std::string> files(const database &, uint64_t &msz);
std::vector<std::string> files(const database &);
// Property information interface
using prop_int = uint64_t;

29
ircd/db.cc
View file

@ -183,6 +183,35 @@ ircd::db::fdeletions(database &d,
};
}
/// Get the live file list for db; see overlord documentation.
std::vector<std::string>
ircd::db::files(const database &d)
{
uint64_t ignored;
return files(d, ignored);
}
/// Get the live file list for database relative to the database's directory.
/// One of the files is a manifest file which is over-allocated and its used
/// size is returned in the integer passed to the `msz` argument.
///
/// This list may not be completely up to date. The reliable way to get the
/// most current list is to flush all columns first and ensure no database
/// activity took place between the flushing and this query.
std::vector<std::string>
ircd::db::files(const database &cd,
uint64_t &msz)
{
std::vector<std::string> ret;
auto &d(const_cast<database &>(cd));
throw_on_error
{
d.d->GetLiveFiles(ret, &msz, false)
};
return ret;
}
uint64_t
ircd::db::sequence(const database &cd)
{