From 41fd658b247d9b1b96fc29eff4698ce93bada4f0 Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Wed, 12 Dec 2018 09:57:46 -0800
Subject: [PATCH] ircd::db: Add interface to get column and database options.

---
 include/ircd/db/column.h            |  1 +
 include/ircd/db/database/database.h |  1 +
 include/ircd/db/db.h                |  1 +
 ircd/db.cc                          | 20 ++++++++++++++++++++
 4 files changed, 23 insertions(+)

diff --git a/include/ircd/db/column.h b/include/ircd/db/column.h
index a8ebd7356..69a11495a 100644
--- a/include/ircd/db/column.h
+++ b/include/ircd/db/column.h
@@ -22,6 +22,7 @@ namespace ircd::db
 	std::vector<std::string> files(const column &);
 	size_t file_count(const column &);
 	size_t bytes(const column &);
+	options getopt(const column &);
 
 	// Get property data of a db column. R can optionally be uint64_t for some
 	// values; we typedef that as prop_int for templating purposes. R can also
diff --git a/include/ircd/db/database/database.h b/include/ircd/db/database/database.h
index c6eff0940..691f3d58b 100644
--- a/include/ircd/db/database/database.h
+++ b/include/ircd/db/database/database.h
@@ -29,6 +29,7 @@ namespace ircd::db
 	std::vector<std::string> wals(const database &);
 	size_t file_count(const database &);
 	size_t bytes(const database &);
+	options getopt(const database &);
 	log::facility loglevel(const database &);
 
 	// Property information interface
diff --git a/include/ircd/db/db.h b/include/ircd/db/db.h
index 912a7ef8b..f142734d6 100644
--- a/include/ircd/db/db.h
+++ b/include/ircd/db/db.h
@@ -22,6 +22,7 @@ namespace ircd::db
 	struct column;
 	struct index;
 	struct database;
+	struct options;
 
 	// Errors for the database subsystem. The exceptions that use _HIDENAME
 	// are built from RocksDB errors which already have an info string with
diff --git a/ircd/db.cc b/ircd/db.cc
index 5701bda83..5b76eacb6 100644
--- a/ircd/db.cc
+++ b/ircd/db.cc
@@ -639,6 +639,15 @@ ircd::db::loglevel(const database &d)
 	}
 }
 
+ircd::db::options
+ircd::db::getopt(const database &d)
+{
+	return options
+	{
+		d.d->GetDBOptions()
+	};
+}
+
 size_t
 ircd::db::bytes(const database &d)
 {
@@ -9018,6 +9027,17 @@ ircd::db::property(const column &column,
 	return ret;
 }
 
+ircd::db::options
+ircd::db::getopt(const column &column)
+{
+	database &d(const_cast<db::column &>(column));
+	database::column &c(const_cast<db::column &>(column));
+	return options
+	{
+		static_cast<rocksdb::ColumnFamilyOptions>(d.d->GetOptions(c))
+	};
+}
+
 size_t
 ircd::db::bytes(const column &column)
 {