Background/smart mining. If a users' computer is plugged into a power

source, and CPU has been idle for some time, then begin mining to some
threshold (don't destroy the users' CPU).

This patch only supports windows and linux (I've only tested on Win64 and
Ubuntu).

The variables currently default to pretty conservative values (i.e. 20%
CPU mining threshold).

4 files changed, 14 insertions, 6 deletions

diff --git a/src/daemon/command_parser_executor.cpp b/src/daemon/command_parser_executor.cpp
index fd73654ac..8ed529737 100644
--- a/src/daemon/command_parser_executor.cpp
+++ b/src/daemon/command_parser_executor.cpp
@@ -271,17 +271,24 @@ bool t_command_parser_executor::start_mining(const std::vector<std::string>& arg
   if(testnet)
     std::cout << "Mining to a testnet address, make sure this is intentional!" << std::endl;
   uint64_t threads_count = 1;
-  if(args.size() > 2)
+  bool do_background_mining = false;  
+  if(args.size() > 3)
   {
     return false;
   }
-  else if(args.size() == 2)
+  
+  if(args.size() == 3)
+  {
+    do_background_mining = args[2] == "true";
+  }
+  
+  if(args.size() >= 2)
   {
     bool ok = epee::string_tools::get_xtype_from_string(threads_count, args[1]);
     threads_count = (ok && 0 < threads_count) ? threads_count : 1;
   }
 
-  m_executor.start_mining(adr, threads_count, testnet);
+  m_executor.start_mining(adr, threads_count, testnet, do_background_mining);
 
   return true;
 }
diff --git a/src/daemon/command_server.cpp b/src/daemon/command_server.cpp
index 34868b576..4133b90d9 100644
--- a/src/daemon/command_server.cpp
+++ b/src/daemon/command_server.cpp
@@ -96,7 +96,7 @@ t_command_server::t_command_server(
   m_command_lookup.set_handler(
       "start_mining"
     , std::bind(&t_command_parser_executor::start_mining, &m_parser, p::_1)
-    , "Start mining for specified address, start_mining <addr> [<threads>], default 1 thread"
+    , "Start mining for specified address, start_mining <addr> [<threads>] [do_background_mining], default 1 thread, no background mining"
     );
   m_command_lookup.set_handler(
       "stop_mining"
diff --git a/src/daemon/rpc_command_executor.cpp b/src/daemon/rpc_command_executor.cpp
index 469f83014..ae5c2d31d 100644
--- a/src/daemon/rpc_command_executor.cpp
+++ b/src/daemon/rpc_command_executor.cpp
@@ -929,11 +929,12 @@ bool t_rpc_command_executor::print_transaction_pool_stats() {
   return true;
 }
 
-bool t_rpc_command_executor::start_mining(cryptonote::account_public_address address, uint64_t num_threads, bool testnet) {
+bool t_rpc_command_executor::start_mining(cryptonote::account_public_address address, uint64_t num_threads, bool testnet, bool do_background_mining = false) {
   cryptonote::COMMAND_RPC_START_MINING::request req;
   cryptonote::COMMAND_RPC_START_MINING::response res;
   req.miner_address = cryptonote::get_account_address_as_str(testnet, address);
   req.threads_count = num_threads;
+  req.do_background_mining = do_background_mining;
 
   std::string fail_message = "Mining did not start";
 
diff --git a/src/daemon/rpc_command_executor.h b/src/daemon/rpc_command_executor.h
index 4691844fa..5b7b76448 100644
--- a/src/daemon/rpc_command_executor.h
+++ b/src/daemon/rpc_command_executor.h
@@ -106,7 +106,7 @@ public:
 
   bool print_transaction_pool_stats();
 
-  bool start_mining(cryptonote::account_public_address address, uint64_t num_threads, bool testnet);
+  bool start_mining(cryptonote::account_public_address address, uint64_t num_threads, bool testnet, bool do_background_mining);
 
   bool stop_mining();