Merge pull request #2319

c22d22e2 Cleanup test impact of adding safesyncmode() method (Howard Chu)
9a859844 Toggle SAFE syncmode on and off automatically (Howard Chu)
This commit is contained in:
Riccardo Spagni 2017-08-26 23:45:38 +02:00
commit e75e41d07d
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GPG key ID: 55432DF31CCD4FCD
11 changed files with 61 additions and 2 deletions

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@ -605,6 +605,13 @@ public:
*/
virtual void sync() = 0;
/**
* @brief toggle safe syncs for the DB
*
* Used to switch DBF_SAFE on or off after starting up with DBF_FAST.
*/
virtual void safesyncmode(const bool onoff) = 0;
/**
* @brief Remove everything from the BlockchainDB
*

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@ -1318,6 +1318,11 @@ void BlockchainLMDB::sync()
}
}
void BlockchainLMDB::safesyncmode(const bool onoff)
{
mdb_env_set_flags(m_env, MDB_NOSYNC|MDB_MAPASYNC, !onoff);
}
void BlockchainLMDB::reset()
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);

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@ -165,6 +165,8 @@ public:
virtual void sync();
virtual void safesyncmode(const bool onoff);
virtual void reset();
virtual std::vector<std::string> get_filenames() const;

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@ -131,7 +131,7 @@ static const uint64_t testnet_hard_fork_version_1_till = 624633;
//------------------------------------------------------------------
Blockchain::Blockchain(tx_memory_pool& tx_pool) :
m_db(), m_tx_pool(tx_pool), m_hardfork(NULL), m_timestamps_and_difficulties_height(0), m_current_block_cumul_sz_limit(0),
m_enforce_dns_checkpoints(false), m_max_prepare_blocks_threads(4), m_db_blocks_per_sync(1), m_db_sync_mode(db_async), m_fast_sync(true), m_show_time_stats(false), m_sync_counter(0), m_cancel(false)
m_enforce_dns_checkpoints(false), m_max_prepare_blocks_threads(4), m_db_blocks_per_sync(1), m_db_sync_mode(db_async), m_db_default_sync(false), m_fast_sync(true), m_show_time_stats(false), m_sync_counter(0), m_cancel(false)
{
LOG_PRINT_L3("Blockchain::" << __func__);
}
@ -4042,12 +4042,29 @@ bool Blockchain::for_all_txpool_txes(std::function<bool(const crypto::hash&, con
void Blockchain::set_user_options(uint64_t maxthreads, uint64_t blocks_per_sync, blockchain_db_sync_mode sync_mode, bool fast_sync)
{
if (sync_mode == db_defaultsync)
{
m_db_default_sync = true;
sync_mode = db_async;
}
m_db_sync_mode = sync_mode;
m_fast_sync = fast_sync;
m_db_blocks_per_sync = blocks_per_sync;
m_max_prepare_blocks_threads = maxthreads;
}
void Blockchain::safesyncmode(const bool onoff)
{
/* all of this is no-op'd if the user set a specific
* --db-sync-mode at startup.
*/
if (m_db_default_sync)
{
m_db->safesyncmode(onoff);
m_db_sync_mode = onoff ? db_nosync : db_async;
}
}
HardFork::State Blockchain::get_hard_fork_state() const
{
return m_hardfork->get_state();

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@ -65,6 +65,7 @@ namespace cryptonote
*/
enum blockchain_db_sync_mode
{
db_defaultsync, //!< user didn't specify, use db_async
db_sync, //!< handle syncing calls instead of the backing db, synchronously
db_async, //!< handle syncing calls instead of the backing db, asynchronously
db_nosync //!< Leave syncing up to the backing db (safest, but slowest because of disk I/O)
@ -700,6 +701,11 @@ namespace cryptonote
void set_user_options(uint64_t maxthreads, uint64_t blocks_per_sync,
blockchain_db_sync_mode sync_mode, bool fast_sync);
/**
* @brief Put DB in safe sync mode
*/
void safesyncmode(const bool onoff);
/**
* @brief set whether or not to show/print time statistics
*
@ -932,6 +938,7 @@ namespace cryptonote
blockchain_db_sync_mode m_db_sync_mode;
bool m_fast_sync;
bool m_show_time_stats;
bool m_db_default_sync;
uint64_t m_db_blocks_per_sync;
uint64_t m_max_prepare_blocks_threads;
uint64_t m_fake_pow_calc_time;

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@ -322,7 +322,7 @@ namespace cryptonote
const std::string filename = folder.string();
// default to fast:async:1
blockchain_db_sync_mode sync_mode = db_async;
blockchain_db_sync_mode sync_mode = db_defaultsync;
uint64_t blocks_per_sync = 1;
try
@ -355,11 +355,15 @@ namespace cryptonote
sync_mode = db_nosync;
}
else if(options[0] == "fast")
{
db_flags = DBF_FAST;
sync_mode = db_async;
}
else if(options[0] == "fastest")
{
db_flags = DBF_FASTEST;
blocks_per_sync = 1000; // default to fastest:async:1000
sync_mode = db_async;
}
else
db_flags = DEFAULT_FLAGS;
@ -1039,6 +1043,11 @@ namespace cryptonote
m_miner.on_synchronized();
}
//-----------------------------------------------------------------------------------------------
void core::safesyncmode(const bool onoff)
{
m_blockchain_storage.safesyncmode(onoff);
}
//-----------------------------------------------------------------------------------------------
bool core::add_new_block(const block& b, block_verification_context& bvc)
{
return m_blockchain_storage.add_new_block(b, bvc);

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@ -620,6 +620,13 @@ namespace cryptonote
*/
void on_synchronized();
/**
* @copydoc Blockchain::safesyncmode
*
* 2note see Blockchain::safesyncmode
*/
void safesyncmode(const bool onoff);
/**
* @brief sets the target blockchain height
*

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@ -303,6 +303,7 @@ namespace cryptonote
<< " [Your node is " << abs_diff << " blocks (" << ((abs_diff - diff_v2) / (24 * 60 * 60 / DIFFICULTY_TARGET_V1)) + (diff_v2 / (24 * 60 * 60 / DIFFICULTY_TARGET_V2)) << " days) "
<< (0 <= diff ? std::string("behind") : std::string("ahead"))
<< "] " << ENDL << "SYNCHRONIZATION started");
m_core.safesyncmode(false);
}
LOG_PRINT_L1("Remote blockchain height: " << hshd.current_height << ", id: " << hshd.top_id);
context.m_state = cryptonote_connection_context::state_synchronizing;
@ -1513,6 +1514,7 @@ skip:
<< "**********************************************************************");
m_core.on_synchronized();
}
m_core.safesyncmode(true);
return true;
}
//------------------------------------------------------------------------------------------------------------------------

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@ -66,6 +66,7 @@ namespace tests
public:
void on_synchronized(){}
void safesyncmode(const bool){}
uint64_t get_current_blockchain_height(){return 1;}
void set_target_blockchain_height(uint64_t) {}
bool init(const boost::program_options::variables_map& vm);

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@ -43,6 +43,7 @@ class test_core
{
public:
void on_synchronized(){}
void safesyncmode(const bool){}
uint64_t get_current_blockchain_height() const {return 1;}
void set_target_blockchain_height(uint64_t) {}
bool init(const boost::program_options::variables_map& vm) {return true ;}

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@ -47,6 +47,7 @@ public:
virtual void open(const std::string& filename, const int db_flags = 0) { }
virtual void close() {}
virtual void sync() {}
virtual void safesyncmode(const bool onoff) {}
virtual void reset() {}
virtual std::vector<std::string> get_filenames() const { return std::vector<std::string>(); }
virtual std::string get_db_name() const { return std::string(); }