1 files changed, 24 insertions, 12 deletions

diff --git a/src/sync.cpp b/src/sync.cpp
index 87024ccdf2..3f51383ea2 100644
--- a/src/sync.cpp
+++ b/src/sync.cpp
@@ -2,16 +2,18 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include "sync.h"
+#include <sync.h>
 
-#include "util.h"
-#include "utilstrencodings.h"
+#include <set>
+#include <util.h>
+#include <utilstrencodings.h>
 
 #include <stdio.h>
 
-#include <boost/thread.hpp>
-
 #ifdef DEBUG_LOCKCONTENTION
+#if !defined(HAVE_THREAD_LOCAL)
+static_assert(false, "thread_local is not supported");
+#endif
 void PrintLockContention(const char* pszName, const char* pszFile, int nLine)
 {
     LogPrintf("LOCKCONTENTION: %s\n", pszName);
@@ -45,8 +47,8 @@ struct CLockLocation {
         return mutexName + "  " + sourceFile + ":" + itostr(sourceLine) + (fTry ? " (TRY)" : "");
     }
 
-    bool fTry;
 private:
+    bool fTry;
     std::string mutexName;
     std::string sourceFile;
     int sourceLine;
@@ -67,10 +69,10 @@ struct LockData {
 
     LockOrders lockorders;
     InvLockOrders invlockorders;
-    boost::mutex dd_mutex;
+    std::mutex dd_mutex;
 } static lockdata;
 
-boost::thread_specific_ptr<LockStack> lockstack;
+static thread_local std::unique_ptr<LockStack> lockstack;
 
 static void potential_deadlock_detected(const std::pair<void*, void*>& mismatch, const LockStack& s1, const LockStack& s2)
 {
@@ -100,12 +102,12 @@ static void potential_deadlock_detected(const std::pair<void*, void*>& mismatch,
 
 static void push_lock(void* c, const CLockLocation& locklocation)
 {
-    if (lockstack.get() == nullptr)
+    if (!lockstack)
         lockstack.reset(new LockStack);
 
-    boost::unique_lock<boost::mutex> lock(lockdata.dd_mutex);
+    std::lock_guard<std::mutex> lock(lockdata.dd_mutex);
 
-    (*lockstack).push_back(std::make_pair(c, locklocation));
+    lockstack->push_back(std::make_pair(c, locklocation));
 
     for (const std::pair<void*, CLockLocation> & i : (*lockstack)) {
         if (i.first == c)
@@ -155,13 +157,23 @@ void AssertLockHeldInternal(const char* pszName, const char* pszFile, int nLine,
     abort();
 }
 
+void AssertLockNotHeldInternal(const char* pszName, const char* pszFile, int nLine, void* cs)
+{
+    for (const std::pair<void*, CLockLocation>& i : *lockstack) {
+        if (i.first == cs) {
+            fprintf(stderr, "Assertion failed: lock %s held in %s:%i; locks held:\n%s", pszName, pszFile, nLine, LocksHeld().c_str());
+            abort();
+        }
+    }
+}
+
 void DeleteLock(void* cs)
 {
     if (!lockdata.available) {
         // We're already shutting down.
         return;
     }
-    boost::unique_lock<boost::mutex> lock(lockdata.dd_mutex);
+    std::lock_guard<std::mutex> lock(lockdata.dd_mutex);
     std::pair<void*, void*> item = std::make_pair(cs, nullptr);
     LockOrders::iterator it = lockdata.lockorders.lower_bound(item);
     while (it != lockdata.lockorders.end() && it->first.first == cs) {