Ported acbe983 and 58d7dc7 from testnet1 branch

chain/src/chain.rs

@@ -33,8 +33,6 @@ use sumtree;
 use types::*;
 use util::LOGGER;
 
-use core::global;
-
 const MAX_ORPHANS: usize = 20;
 
 /// Facade to the blockchain block processing pipeline and storage. Provides
@@ -154,6 +152,15 @@ impl Chain {
 				orphans.push_front((opts, b));
 				orphans.truncate(MAX_ORPHANS);
 			},
+			Err(Error::Unfit(ref msg)) => {
+				debug!(
+					LOGGER,
+					"Block {} at {} is unfit at this time: {}",
+					b.hash(),
+					b.header.height,
+					msg
+				);
+			}
 			Err(ref e) => {
 				info!(
 					LOGGER,
@@ -184,12 +191,6 @@ impl Chain {
 	}
 
 	fn ctx_from_head(&self, head: Tip, opts: Options) -> pipe::BlockContext {
-		let opts = if global::is_production_mode() {
-      opts
-    } else {
-      opts | EASY_POW
-    };
-
 		pipe::BlockContext {
 			opts: opts,
 			store: self.store.clone(),

chain/src/lib.rs

@@ -43,4 +43,4 @@ pub mod types;
 // Re-export the base interface
 
 pub use chain::Chain;
-pub use types::{ChainAdapter, ChainStore, Error, Options, Tip, EASY_POW, NONE, SKIP_POW, SYNC};
+pub use types::{ChainAdapter, ChainStore, Error, Options, Tip, NONE, SKIP_POW, SYNC};

chain/src/pipe.rs

@@ -155,11 +155,8 @@ fn validate_header(header: &BlockHeader, ctx: &mut BlockContext) -> Result<(), E
 	}
 
 	if !ctx.opts.intersects(SKIP_POW) {
-		let cycle_size = if ctx.opts.intersects(EASY_POW) {
-			global::sizeshift()
-		} else {
-			consensus::DEFAULT_SIZESHIFT
-		};
+		let cycle_size = global::sizeshift();
+
 		debug!(LOGGER, "Validating block with cuckoo size {}", cycle_size);
 		if !(ctx.pow_verifier)(header, cycle_size as u32) {
 			return Err(Error::InvalidPow);

chain/src/types.rs

@@ -32,8 +32,6 @@ bitflags! {
 		const NONE = 0b00000001,
 		/// Runs without checking the Proof of Work, mostly to make testing easier.
 		const SKIP_POW = 0b00000010,
-		/// Runs PoW verification with a lower cycle size.
-		const EASY_POW = 0b00000100,
 		/// Adds block while in syncing mode.
 		const SYNC = 0b00001000,
 	}