From 5f93474512e2b7a190a3bc71a33536f4dc384463 Mon Sep 17 00:00:00 2001
From: Elichai Turkel <elichai.turkel@gmail.com>
Date: Tue, 28 May 2019 20:48:26 +0300
Subject: [PATCH] Added the preallocated FFI

---
 src/ffi.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/ffi.rs b/src/ffi.rs
index dbcfbc4..4a750f1 100644
--- a/src/ffi.rs
+++ b/src/ffi.rs
@@ -144,6 +144,16 @@ extern "C" {
     // Contexts
     pub fn secp256k1_context_create(flags: c_uint) -> *mut Context;
 
+    pub fn secp256k1_context_preallocated_size(flags: c_uint) -> usize;
+
+    pub fn secp256k1_context_preallocated_create(prealloc: *mut c_void, flags: c_uint) -> *mut Context;
+
+    pub fn secp256k1_context_preallocated_destroy(cx: *mut Context);
+
+    pub fn secp256k1_context_preallocated_clone_size(cx: *const Context) -> usize;
+
+    pub fn secp256k1_context_preallocated_clone(cx: *const Context, prealloc: *mut c_void) -> *mut Context;
+
     pub fn secp256k1_context_clone(cx: *mut Context) -> *mut Context;
 
     pub fn secp256k1_context_destroy(cx: *mut Context);