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Merge pull request #1405 

d1a75754 Remove infinite loop in refresh code (Jaquee)
This commit is contained in:
Riccardo Spagni 2016-12-08 23:43:19 +02:00
parent 9907fc689c d1a75754df
commit f9503d2789
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GPG Key ID: 55432DF31CCD4FCD
2 changed files with 45 additions and 71 deletions
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2
.gitignore vendored
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@ -103,4 +103,4 @@ local.properties
.texlipse
.idea/
/testnet

114
src/wallet/wallet2.cpp
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@ -1573,35 +1573,12 @@ void wallet2::refresh(uint64_t start_height, uint64_t & blocks_fetched, bool& re
std::list<cryptonote::block_complete_entry> blocks;
std::vector<COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> o_indices;
std::string daemon_height_err = "";
uint64_t daemon_bc_height = get_daemon_blockchain_height(daemon_height_err);
if(daemon_height_err.size() > 0) {
throw std::runtime_error(daemon_height_err);
}
// pull the first set of blocks
get_short_chain_history(short_chain_history);
m_run.store(true, std::memory_order_relaxed);
if (start_height > m_blockchain.size() || m_refresh_from_block_height > m_blockchain.size()) {
// even target_height can be zero if the daemon just started and hasn't gotten some sync
// data back from peers .. hmmm, what to do ... O.o (you can see him thinking)
// i'm going with infiniti loop until i get something bigger than zero or err ... moneromoo don't kill me
std::string daemon_target_err = "";
uint64_t daemon_target_height = 0;
while(daemon_target_height == 0)
{
daemon_target_height = get_daemon_blockchain_target_height(daemon_target_err);
if(daemon_target_err.size() > 0) {
daemon_target_height = get_approximate_blockchain_height(); // - x?
}
}
if (m_refresh_from_block_height > daemon_target_height) m_refresh_from_block_height = daemon_target_height - 1;
if (!start_height) start_height = m_refresh_from_block_height;
if (start_height >= daemon_bc_height) start_height = daemon_bc_height - 1;
if (!start_height)
start_height = m_refresh_from_block_height;
// we can shortcut by only pulling hashes up to the start_height
fast_refresh(start_height, blocks_start_height, short_chain_history);
// regenerate the history now that we've got a full set of hashes
@ -1611,56 +1588,53 @@ void wallet2::refresh(uint64_t start_height, uint64_t & blocks_fetched, bool& re
// and then fall through to regular refresh processing
}
if(!(m_refresh_from_block_height >= daemon_bc_height))
pull_blocks(start_height, blocks_start_height, short_chain_history, blocks, o_indices);
// always reset start_height to 0 to force short_chain_ history to be used on
// subsequent pulls in this refresh.
start_height = 0;
while(m_run.load(std::memory_order_relaxed))
{
pull_blocks(start_height, blocks_start_height, short_chain_history, blocks, o_indices);
// always reset start_height to 0 to force short_chain_ history to be used on
// subsequent pulls in this refresh.
start_height = 0;
while(m_run.load(std::memory_order_relaxed))
try
{
try
// pull the next set of blocks while we're processing the current one
uint64_t next_blocks_start_height;
std::list<cryptonote::block_complete_entry> next_blocks;
std::vector<cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> next_o_indices;
bool error = false;
pull_thread = boost::thread([&]{pull_next_blocks(start_height, next_blocks_start_height, short_chain_history, blocks, next_blocks, next_o_indices, error);});
process_blocks(blocks_start_height, blocks, o_indices, added_blocks);
blocks_fetched += added_blocks;
pull_thread.join();
if(!added_blocks)
break;
// switch to the new blocks from the daemon
blocks_start_height = next_blocks_start_height;
blocks = next_blocks;
o_indices = next_o_indices;
// handle error from async fetching thread
if (error)
{
// pull the next set of blocks while we're processing the current one
uint64_t next_blocks_start_height;
std::list<cryptonote::block_complete_entry> next_blocks;
std::vector<cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> next_o_indices;
bool error = false;
pull_thread = boost::thread([&]{pull_next_blocks(start_height, next_blocks_start_height, short_chain_history, blocks, next_blocks, next_o_indices, error);});
process_blocks(blocks_start_height, blocks, o_indices, added_blocks);
blocks_fetched += added_blocks;
pull_thread.join();
if(!added_blocks)
break;
// switch to the new blocks from the daemon
blocks_start_height = next_blocks_start_height;
blocks = next_blocks;
o_indices = next_o_indices;
// handle error from async fetching thread
if (error)
{
throw std::runtime_error("proxy exception in refresh thread");
}
throw std::runtime_error("proxy exception in refresh thread");
}
catch (const std::exception&)
}
catch (const std::exception&)
{
blocks_fetched += added_blocks;
if (pull_thread.joinable())
pull_thread.join();
if(try_count < 3)
{
blocks_fetched += added_blocks;
if (pull_thread.joinable())
pull_thread.join();
if(try_count < 3)
{
LOG_PRINT_L1("Another try pull_blocks (try_count=" << try_count << ")...");
++try_count;
}
else
{
LOG_ERROR("pull_blocks failed, try_count=" << try_count);
throw;
}
LOG_PRINT_L1("Another try pull_blocks (try_count=" << try_count << ")...");
++try_count;
}
else
{
LOG_ERROR("pull_blocks failed, try_count=" << try_count);
throw;
}
}
}