Merge #13743: refactor: Replace boost::bind with std::bind

cb53b825c2 scripted-diff: Replace boost::bind with std::bind (Chun Kuan Lee)
2196c51821 refactor: Use boost::scoped_connection in signal/slot, also prefer range-based loop instead of std::transform (Chun Kuan Lee)

Pull request description:

  Replace boost::bind with std::bind

  - In `src/rpc/server.cpp`, replace `std::transform` with simple loop.
  - In `src/validation.cpp`, store the `boost::signals2::connection` object and use it to disconnect.
  - In `src/validationinterface.cpp`, use 2 map to store the `boost::signals2::scoped_connection` object.

Tree-SHA512: 6653cbe00036fecfc495340618efcba6d7be0227c752b37b81a27184433330f817e8de9257774e9b35828026cb55f11ee7f17d6c388aebe22c4a3df13b5092f0

1 files changed, 3 insertions, 4 deletions

diff --git a/src/init.cpp b/src/init.cpp
index 8ecd79197f..a3a7c5a3bb 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -59,7 +59,6 @@
 #include <boost/algorithm/string/classification.hpp>
 #include <boost/algorithm/string/replace.hpp>
 #include <boost/algorithm/string/split.hpp>
-#include <boost/bind.hpp>
 #include <boost/thread.hpp>
 #include <openssl/crypto.h>
 
@@ -1237,8 +1236,8 @@ bool AppInitMain(InitInterfaces& interfaces)
     }
 
     // Start the lightweight task scheduler thread
-    CScheduler::Function serviceLoop = boost::bind(&CScheduler::serviceQueue, &scheduler);
-    threadGroup.create_thread(boost::bind(&TraceThread<CScheduler::Function>, "scheduler", serviceLoop));
+    CScheduler::Function serviceLoop = std::bind(&CScheduler::serviceQueue, &scheduler);
+    threadGroup.create_thread(std::bind(&TraceThread<CScheduler::Function>, "scheduler", serviceLoop));
 
     GetMainSignals().RegisterBackgroundSignalScheduler(scheduler);
     GetMainSignals().RegisterWithMempoolSignals(mempool);
@@ -1646,7 +1645,7 @@ bool AppInitMain(InitInterfaces& interfaces)
         vImportFiles.push_back(strFile);
     }
 
-    threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles));
+    threadGroup.create_thread(std::bind(&ThreadImport, vImportFiles));
 
     // Wait for genesis block to be processed
     {