Turn the signature cache lock into a shared mutex

diff --git a/src/script.cpp b/src/script.cpp
index 8a66750..4d3586a 100644 (file)
--- a/src/script.cpp
+++ b/src/script.cpp
@@ -1082,13 +1082,13 @@ private:
      // sigdata_type is (signature hash, signature, public key):
     typedef boost::tuple<uint256, std::vector<unsigned char>, CPubKey > sigdata_type;
     std::set< sigdata_type> setValid;
-    CCriticalSection cs_sigcache;
+    boost::shared_mutex cs_sigcache;
 
 public:
     bool
     Get(const uint256 &hash, const std::vector<unsigned char>& vchSig, const CPubKey& pubKey)
     {
-        LOCK(cs_sigcache);
+        boost::shared_lock<boost::shared_mutex> lock(cs_sigcache);
 
         sigdata_type k(hash, vchSig, pubKey);
         std::set<sigdata_type>::iterator mi = setValid.find(k);
@@ -1106,7 +1106,7 @@ public:
         int64 nMaxCacheSize = GetArg("-maxsigcachesize", 50000);
         if (nMaxCacheSize <= 0) return;
 
-        LOCK(cs_sigcache);
+        boost::shared_lock<boost::shared_mutex> lock(cs_sigcache);
 
         while (static_cast<int64>(setValid.size()) > nMaxCacheSize)
         {