Miner facility, using the current chain state to build on top of.

core/src/pow/cuckoo.rs

@@ -76,14 +76,14 @@ impl Cuckoo {
 	/// Generates a node in the cuckoo graph generated from our seed. A node is
 	/// simply materialized as a u64 from a nonce and an offset (generally 0 or
 	/// 1).
-	pub fn new_node(&self, nonce: u64, uorv: u64) -> u64 {
+	fn new_node(&self, nonce: u64, uorv: u64) -> u64 {
 		return ((siphash24(self.v, 2 * nonce + uorv) & self.mask) << 1) | uorv;
 	}
 
 	/// Creates a new edge in the cuckoo graph generated by our seed from a
 	/// nonce. Generates two node coordinates from the nonce and links them
 	/// together.
-	pub fn new_edge(&self, nonce: u64) -> Edge {
+	fn new_edge(&self, nonce: u64) -> Edge {
 		Edge {
 			u: self.new_node(nonce, 0),
 			v: self.new_node(nonce, 1),

core/src/pow/mod.rs

@@ -23,7 +23,7 @@
 //! reference. It's not optimized for speed.
 
 mod siphash;
-mod cuckoo;
+pub mod cuckoo;
 
 use time;
 
@@ -41,7 +41,7 @@ use ser::{Writeable, Writer};
 /// difficulty (yet unknown). We also add the count of every variable length
 /// elements in a header to make lying on those much harder.
 #[derive(Debug)]
-struct PowHeader {
+pub struct PowHeader {
 	pub nonce: u64,
 	pub height: u64,
 	pub previous: Hash,
@@ -71,7 +71,7 @@ impl Writeable for PowHeader {
 }
 
 impl PowHeader {
-	fn from_block(b: &Block) -> PowHeader {
+	pub fn from_block(b: &Block) -> PowHeader {
 		let ref h = b.header;
 		PowHeader {
 			nonce: h.nonce,