From 7e81dba5cf881c9a3b5d3c4852620cd056353a02 Mon Sep 17 00:00:00 2001
From: Warren Falk <warren@warrenfalk.com>
Date: Tue, 29 Dec 2015 14:47:51 -0500
Subject: [PATCH] Support creation of "full" format bloom filter from C API

---
 db/c.cc             | 12 ++++++++++--
 include/rocksdb/c.h |  2 ++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/db/c.cc b/db/c.cc
index 3c9842978..6e875bb84 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -1965,7 +1965,7 @@ void rocksdb_filterpolicy_destroy(rocksdb_filterpolicy_t* filter) {
   delete filter;
 }
 
-rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom(int bits_per_key) {
+rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom_format(int bits_per_key, bool original_format) {
   // Make a rocksdb_filterpolicy_t, but override all of its methods so
   // they delegate to a NewBloomFilterPolicy() instead of user
   // supplied C functions.
@@ -1983,13 +1983,21 @@ rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom(int bits_per_key) {
     static void DoNothing(void*) { }
   };
   Wrapper* wrapper = new Wrapper;
-  wrapper->rep_ = NewBloomFilterPolicy(bits_per_key);
+  wrapper->rep_ = NewBloomFilterPolicy(bits_per_key, original_format);
   wrapper->state_ = nullptr;
   wrapper->delete_filter_ = nullptr;
   wrapper->destructor_ = &Wrapper::DoNothing;
   return wrapper;
 }
 
+rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom_full(int bits_per_key) {
+  return rocksdb_filterpolicy_create_bloom_format(bits_per_key, false);
+}
+
+rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom(int bits_per_key) {
+  return rocksdb_filterpolicy_create_bloom_format(bits_per_key, true);
+}
+
 rocksdb_mergeoperator_t* rocksdb_mergeoperator_create(
     void* state, void (*destructor)(void*),
     char* (*full_merge)(void*, const char* key, size_t key_length,
diff --git a/include/rocksdb/c.h b/include/rocksdb/c.h
index 6bb3b8538..ccaa9ede2 100644
--- a/include/rocksdb/c.h
+++ b/include/rocksdb/c.h
@@ -760,6 +760,8 @@ extern ROCKSDB_LIBRARY_API void rocksdb_filterpolicy_destroy(
 
 extern ROCKSDB_LIBRARY_API rocksdb_filterpolicy_t*
 rocksdb_filterpolicy_create_bloom(int bits_per_key);
+extern ROCKSDB_LIBRARY_API rocksdb_filterpolicy_t*
+rocksdb_filterpolicy_create_bloom_full(int bits_per_key);
 
 /* Merge Operator */