From 3ce36584111e236e6d7170f0c0dc9adc4b1f949e Mon Sep 17 00:00:00 2001
From: Igor Canadi <icanadi@fb.com>
Date: Mon, 25 Nov 2013 15:51:50 -0800
Subject: [PATCH] DB::GetOptions()

Summary: We need access to options for BackupableDB

Test Plan: make check

Reviewers: dhruba

Reviewed By: dhruba

CC: leveldb, reconnect.grayhat

Differential Revision: https://reviews.facebook.net/D14331
---
 db/db_impl.cc                    | 4 ++++
 db/db_impl.h                     | 1 +
 db/db_test.cc                    | 4 ++++
 include/rocksdb/db.h             | 3 +++
 include/utilities/stackable_db.h | 4 ++++
 utilities/ttl/db_ttl.cc          | 4 ++++
 utilities/ttl/db_ttl.h           | 2 ++
 7 files changed, 22 insertions(+)

diff --git a/db/db_impl.cc b/db/db_impl.cc
index 1f28af324..2d85d7014 100644
--- a/db/db_impl.cc
+++ b/db/db_impl.cc
@@ -3135,6 +3135,10 @@ Env* DBImpl::GetEnv() const {
   return env_;
 }
 
+const Options& DBImpl::GetOptions() const {
+  return options_;
+}
+
 bool DBImpl::GetProperty(const Slice& property, std::string* value) {
   value->clear();
 
diff --git a/db/db_impl.h b/db/db_impl.h
index fdd0a2520..8a57b92f5 100644
--- a/db/db_impl.h
+++ b/db/db_impl.h
@@ -68,6 +68,7 @@ class DBImpl : public DB {
   virtual int MaxMemCompactionLevel();
   virtual int Level0StopWriteTrigger();
   virtual Env* GetEnv() const;
+  virtual const Options& GetOptions() const;
   virtual Status Flush(const FlushOptions& options);
   virtual Status DisableFileDeletions();
   virtual Status EnableFileDeletions();
diff --git a/db/db_test.cc b/db/db_test.cc
index 5e257483e..1e85ab1fa 100644
--- a/db/db_test.cc
+++ b/db/db_test.cc
@@ -4466,6 +4466,10 @@ class ModelDB: public DB {
     return nullptr;
   }
 
+  virtual const Options& GetOptions() const {
+    return options_;
+  }
+
   virtual Status Flush(const rocksdb::FlushOptions& options) {
     Status ret;
     return ret;
diff --git a/include/rocksdb/db.h b/include/rocksdb/db.h
index 0ec7ffba7..73f9ac4da 100644
--- a/include/rocksdb/db.h
+++ b/include/rocksdb/db.h
@@ -231,6 +231,9 @@ class DB {
   // Get Env object from the DB
   virtual Env* GetEnv() const = 0;
 
+  // Get DB Options that we use
+  virtual const Options& GetOptions() const = 0;
+
   // Flush all mem-table data.
   virtual Status Flush(const FlushOptions& options) = 0;
 
diff --git a/include/utilities/stackable_db.h b/include/utilities/stackable_db.h
index b1e308b20..dc26ed852 100644
--- a/include/utilities/stackable_db.h
+++ b/include/utilities/stackable_db.h
@@ -107,6 +107,10 @@ class StackableDB : public DB {
     return db_->GetEnv();
   }
 
+  virtual const Options& GetOptions() const override {
+    return db_->GetOptions();
+  }
+
   virtual Status Flush(const FlushOptions& fopts) override {
     return db_->Flush(fopts);
   }
diff --git a/utilities/ttl/db_ttl.cc b/utilities/ttl/db_ttl.cc
index 127a2e566..abe7408a6 100644
--- a/utilities/ttl/db_ttl.cc
+++ b/utilities/ttl/db_ttl.cc
@@ -258,6 +258,10 @@ Env* DBWithTTL::GetEnv() const {
   return db_->GetEnv();
 }
 
+const Options& DBWithTTL::GetOptions() const {
+  return db_->GetOptions();
+}
+
 Status DBWithTTL::Flush(const FlushOptions& fopts) {
   return db_->Flush(fopts);
 }
diff --git a/utilities/ttl/db_ttl.h b/utilities/ttl/db_ttl.h
index d5c51dd3f..d09bae966 100644
--- a/utilities/ttl/db_ttl.h
+++ b/utilities/ttl/db_ttl.h
@@ -69,6 +69,8 @@ class DBWithTTL : public StackableDB {
 
   virtual Env* GetEnv() const;
 
+  virtual const Options& GetOptions() const;
+
   virtual Status Flush(const FlushOptions& fopts);
 
   virtual Status DisableFileDeletions();