From 0a8aa1b6367258e542333fa4d3bed5826079d043 Mon Sep 17 00:00:00 2001
From: Jordan Terrell <jterrell@wans.net>
Date: Wed, 13 Feb 2019 06:17:26 -0600
Subject: [PATCH] Adding set_readahead_size setter to ReadOptions...

---
 src/db.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/db.rs b/src/db.rs
index b871d87..4aa43dc 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -1721,6 +1721,18 @@ impl ReadOptions {
     pub fn set_total_order_seek(&mut self, v: bool) {
         unsafe { ffi::rocksdb_readoptions_set_total_order_seek(self.inner, v as c_uchar) }
     }
+
+    /// ```
+    /// use rocksdb::{ReadOptions};
+    ///
+    /// let mut opts = ReadOptions::default();
+    /// opts.set_readahead_size(4_194_304); // 4mb
+    /// ```
+    pub fn set_readahead_size(&mut self, v: usize) {
+        unsafe {
+            ffi::rocksdb_readoptions_set_readahead_size(self.inner, v as size_t);
+        }
+    }
 }
 
 impl Default for ReadOptions {