blockchain: fix block rate check for empty blockchains

5 years ago · 3974e40efa
parent ad6a732f24
commit 3974e40efa
1 changed files with 3 additions and 1 deletions
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@ -902,8 +902,10 @@ difficulty_type Blockchain::get_difficulty_for_next_block()
 //------------------------------------------------------------------
 std::vector<time_t> Blockchain::get_last_block_timestamps(unsigned int blocks) const
 {
-  std::vector<time_t> timestamps(blocks);
  uint64_t height = m_db->height();
+  if (blocks > height)
+    blocks = height;
+  std::vector<time_t> timestamps(blocks);
  while (blocks--)
    timestamps[blocks] = m_db->get_block_timestamp(height - blocks - 1);
  return timestamps;