Merge pull request nanocurrency#4794 from pwojcikdev/bucketing

Bucketing component

nano/core_test/CMakeLists.txt

@@ -12,6 +12,7 @@ add_executable(
   blockprocessor.cpp
   bootstrap.cpp
   bootstrap_server.cpp
+  bucketing.cpp
   cli.cpp
   confirmation_solicitor.cpp
   confirming_set.cpp
@@ -26,6 +27,7 @@ add_executable(
   ipc.cpp
   ledger.cpp
   ledger_confirm.cpp
+  ledger_priority.cpp
   locks.cpp
   logging.cpp
   message.cpp

nano/core_test/active_elections.cpp

@@ -514,6 +514,7 @@ TEST (inactive_votes_cache, election_start)
 	node.vote_processor.vote (vote2, std::make_shared<nano::transport::inproc::channel> (node, node));
 	// Only election for send1 should start, other blocks are missing dependencies and don't have enough final weight
 	ASSERT_TIMELY_EQ (5s, 1, node.active.size ());
+	ASSERT_TRUE (node.vote_router.contains (send1->hash ()));
 	ASSERT_TRUE (node.vote_router.active (send1->hash ()));
 
 	// Confirm elections with weight quorum

nano/core_test/bucketing.cpp

@@ -0,0 +1,55 @@
+#include <nano/node/bucketing.hpp>
+
+#include <gtest/gtest.h>
+
+#include <algorithm>
+
+TEST (bucketing, construction)
+{
+	nano::bucketing bucketing;
+	ASSERT_EQ (63, bucketing.size ());
+}
+
+TEST (bucketing, zero_index)
+{
+	nano::bucketing bucketing;
+	ASSERT_EQ (0, bucketing.bucket_index (0));
+}
+
+TEST (bucketing, raw_index)
+{
+	nano::bucketing bucketing;
+	ASSERT_EQ (0, bucketing.bucket_index (nano::raw_ratio));
+}
+
+TEST (bucketing, nano_index)
+{
+	nano::bucketing bucketing;
+	ASSERT_EQ (14, bucketing.bucket_index (nano::nano_ratio));
+}
+
+TEST (bucketing, Knano_index)
+{
+	nano::bucketing bucketing;
+	ASSERT_EQ (49, bucketing.bucket_index (nano::Knano_ratio));
+}
+
+TEST (bucketing, max_index)
+{
+	nano::bucketing bucketing;
+	ASSERT_EQ (62, bucketing.bucket_index (std::numeric_limits<nano::amount::underlying_type>::max ()));
+}
+
+TEST (bucketing, indices)
+{
+	nano::bucketing bucketing;
+	auto indices = bucketing.bucket_indices ();
+	ASSERT_EQ (63, indices.size ());
+	ASSERT_EQ (indices.size (), bucketing.size ());
+
+	// Check that the indices are in ascending order
+	ASSERT_TRUE (std::adjacent_find (indices.begin (), indices.end (), [] (auto const & lhs, auto const & rhs) {
+		return lhs >= rhs;
+	})
+	== indices.end ());
+}

nano/core_test/election_scheduler.cpp

@@ -256,8 +256,7 @@ TEST (election_scheduler_bucket, construction)
 	auto & node = *system.add_node ();
 
 	nano::scheduler::priority_bucket_config bucket_config;
-	nano::scheduler::bucket bucket{ nano::Knano_ratio, bucket_config, node.active, node.stats };
-	ASSERT_EQ (nano::Knano_ratio, bucket.minimum_balance);
+	nano::scheduler::bucket bucket{ 0, bucket_config, node.active, node.stats };
 	ASSERT_TRUE (bucket.empty ());
 	ASSERT_EQ (0, bucket.size ());
 }
@@ -269,7 +268,9 @@ TEST (election_scheduler_bucket, insert_one)
 
 	nano::scheduler::priority_bucket_config bucket_config;
 	nano::scheduler::bucket bucket{ 0, bucket_config, node.active, node.stats };
+	ASSERT_FALSE (bucket.contains (block0 ()->hash ()));
 	ASSERT_TRUE (bucket.push (1000, block0 ()));
+	ASSERT_TRUE (bucket.contains (block0 ()->hash ()));
 	ASSERT_FALSE (bucket.empty ());
 	ASSERT_EQ (1, bucket.size ());
 	auto blocks = bucket.blocks ();
@@ -320,10 +321,15 @@ TEST (election_scheduler_bucket, max_blocks)
 	};
 	nano::scheduler::bucket bucket{ 0, bucket_config, node.active, node.stats };
 	ASSERT_TRUE (bucket.push (2000, block0 ()));
+	ASSERT_TRUE (bucket.contains (block0 ()->hash ()));
 	ASSERT_TRUE (bucket.push (900, block1 ()));
+	ASSERT_TRUE (bucket.contains (block1 ()->hash ()));
 	ASSERT_FALSE (bucket.push (3000, block2 ()));
+	ASSERT_FALSE (bucket.contains (block2 ()->hash ()));
 	ASSERT_TRUE (bucket.push (1001, block3 ())); // Evicts 2000
+	ASSERT_FALSE (bucket.contains (block0 ()->hash ()));
 	ASSERT_TRUE (bucket.push (1000, block0 ())); // Evicts 1001
+	ASSERT_FALSE (bucket.contains (block3 ()->hash ()));
 	ASSERT_EQ (2, bucket.size ());
 	auto blocks = bucket.blocks ();
 	ASSERT_EQ (2, blocks.size ());