bunch of changes

src/dbwrapper.cpp

@@ -2,10 +2,10 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include "dbwrapper.h"
+#include <dbwrapper.h>
 
-#include "util.h"
-#include "random.h"
+#include <util.h>
+#include <random.h>
 
 #include <boost/filesystem.hpp>
 
@@ -22,7 +22,7 @@ static leveldb::Options GetOptions(size_t nCacheSize)
     options.write_buffer_size = nCacheSize / 4; // up to two write buffers may be held in memory simultaneously
     options.filter_policy = leveldb::NewBloomFilterPolicy(10);
     options.compression = leveldb::kNoCompression;
-    options.max_open_files = 64;
+    options.max_open_files = 1000;
     if (leveldb::kMajorVersion > 1 || (leveldb::kMajorVersion == 1 && leveldb::kMinorVersion >= 16)) {
         // LevelDB versions before 1.16 consider short writes to be corruption. Only trigger error
         // on corruption in later versions.
@@ -33,7 +33,7 @@ static leveldb::Options GetOptions(size_t nCacheSize)
 
 CDBWrapper::CDBWrapper(const boost::filesystem::path& path, size_t nCacheSize, bool fMemory, bool fWipe, bool obfuscate)
 {
-    penv = NULL;
+    penv = nullptr;
     readoptions.verify_checksums = true;
     iteroptions.verify_checksums = true;
     iteroptions.fill_cache = false;
@@ -79,13 +79,13 @@ CDBWrapper::CDBWrapper(const boost::filesystem::path& path, size_t nCacheSize, b
 CDBWrapper::~CDBWrapper()
 {
     delete pdb;
-    pdb = NULL;
+    pdb = nullptr;
     delete options.filter_policy;
-    options.filter_policy = NULL;
+    options.filter_policy = nullptr;
     delete options.block_cache;
-    options.block_cache = NULL;
+    options.block_cache = nullptr;
     delete penv;
-    options.env = NULL;
+    options.env = nullptr;
 }
 
 bool CDBWrapper::WriteBatch(CDBBatch& batch, bool fSync)