X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Futil.cpp;h=12ac076f0d5277d3b69ef3511c96cd24192f0823;hb=882164196e5b1971313493f95a6d027f05e2ec92;hp=5b6d26bb8927bc3e0523e9587a3e3ed220faf85a;hpb=4e67a6216bf3633320950117aba3566cbfd5ffda;p=novacoin.git

diff --git a/src/util.cpp b/src/util.cpp
index 5b6d26b..12ac076 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1,9 +1,10 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 #include "headers.h"
 #include "strlcpy.h"
+#include <boost/algorithm/string/join.hpp>
 #include <boost/program_options/detail/config_file.hpp>
 #include <boost/program_options/parsers.hpp>
 #include <boost/filesystem.hpp>
@@ -30,7 +31,7 @@ string strMiscWarning;
 bool fTestNet = false;
 bool fNoListen = false;
 bool fLogTimestamps = false;
-
+CMedianFilter<int64> vTimeOffsets(200,0);
 
 
 
@@ -64,7 +65,7 @@ public:
             ppmutexOpenSSL[i] = new boost::interprocess::interprocess_mutex();
         CRYPTO_set_locking_callback(locking_callback);
 
-#ifdef __WXMSW__
+#ifdef WIN32
         // Seed random number generator with screen scrape and other hardware sources
         RAND_screen();
 #endif
@@ -108,7 +109,7 @@ void RandAddSeedPerfmon()
         return;
     nLastPerfmon = GetTime();
 
-#ifdef __WXMSW__
+#ifdef WIN32
     // Don't need this on Linux, OpenSSL automatically uses /dev/urandom
     // Seed with the entire set of perfmon data
     unsigned char pdata[250000];
@@ -132,7 +133,7 @@ uint64 GetRand(uint64 nMax)
 
     // The range of the random source must be a multiple of the modulus
     // to give every possible output value an equal possibility
-    uint64 nRange = (UINT64_MAX / nMax) * nMax;
+    uint64 nRange = (std::numeric_limits<uint64>::max() / nMax) * nMax;
     uint64 nRand = 0;
     do
         RAND_bytes((unsigned char*)&nRand, sizeof(nRand));
@@ -198,7 +199,7 @@ inline int OutputDebugStringF(const char* pszFormat, ...)
         }
     }
 
-#ifdef __WXMSW__
+#ifdef WIN32
     if (fPrintToDebugger)
     {
         static CCriticalSection cs_OutputDebugStringF;
@@ -387,7 +388,7 @@ bool ParseMoney(const char* pszIn, int64& nRet)
     for (; *p; p++)
         if (!isspace(*p))
             return false;
-    if (strWhole.size() > 14)
+    if (strWhole.size() > 10) // guard against 63 bit overflow
         return false;
     if (nUnits < 0 || nUnits > COIN)
         return false;
@@ -399,26 +400,36 @@ bool ParseMoney(const char* pszIn, int64& nRet)
 }
 
 
-vector<unsigned char> ParseHex(const char* psz)
+static char phexdigit[256] =
+{ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,
+  -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+  -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, };
+
+bool IsHex(const string& str)
 {
-    static char phexdigit[256] =
-    { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,
-      -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, };
+    BOOST_FOREACH(unsigned char c, str)
+    {
+        if (phexdigit[c] < 0)
+            return false;
+    }
+    return (str.size() > 0) && (str.size()%2 == 0);
+}
 
+vector<unsigned char> ParseHex(const char* psz)
+{
     // convert hex dump to vector
     vector<unsigned char> vch;
     loop
@@ -443,8 +454,7 @@ vector<unsigned char> ParseHex(const string& str)
     return ParseHex(str.c_str());
 }
 
-
-void ParseParameters(int argc, char* argv[])
+void ParseParameters(int argc, const char*const argv[])
 {
     mapArgs.clear();
     mapMultiArgs.clear();
@@ -458,48 +468,173 @@ void ParseParameters(int argc, char* argv[])
             pszValue = strchr(psz, '=');
             *pszValue++ = '\0';
         }
-        #ifdef __WXMSW__
+        #ifdef WIN32
         _strlwr(psz);
         if (psz[0] == '/')
             psz[0] = '-';
         #endif
         if (psz[0] != '-')
             break;
+
         mapArgs[psz] = pszValue;
         mapMultiArgs[psz].push_back(pszValue);
     }
+
+    // New 0.6 features:
+    BOOST_FOREACH(const PAIRTYPE(string,string)& entry, mapArgs)
+    {
+        string name = entry.first;
+
+        //  interpret --foo as -foo (as long as both are not set)
+        if (name.find("--") == 0)
+        {
+            std::string singleDash(name.begin()+1, name.end());
+            if (mapArgs.count(singleDash) == 0)
+                mapArgs[singleDash] = entry.second;
+            name = singleDash;
+        }
+
+        //  interpret -nofoo as -foo=0 (and -nofoo=0 as -foo=1, as long as -foo not set)
+        if (name.find("-no") == 0)
+        {
+            std::string positive("-");
+            positive.append(name.begin()+3, name.end());
+            if (mapArgs.count(positive) == 0)
+            {
+                bool value = !GetBoolArg(name);
+                mapArgs[positive] = (value ? "1" : "0");
+            }
+        }
+    }
 }
 
-static const int decode64_table[256]=
+std::string GetArg(const std::string& strArg, const std::string& strDefault)
 {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1,
- -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
- 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28,
- 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
- 49, 50, 51, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
-};
+    if (mapArgs.count(strArg))
+        return mapArgs[strArg];
+    return strDefault;
+}
 
-std::string DecodeBase64(const std::string &s)
+int64 GetArg(const std::string& strArg, int64 nDefault)
 {
-    char buf[1024];
-    if(s.length()>512) return "";
-    char *optr=buf;
+    if (mapArgs.count(strArg))
+        return atoi64(mapArgs[strArg]);
+    return nDefault;
+}
 
-    int dec, mode=0, left=0;
-    size_t index=0;
-    for (int i=0; i<s.length(); i++)
+bool GetBoolArg(const std::string& strArg, bool fDefault)
+{
+    if (mapArgs.count(strArg))
     {
-         dec=decode64_table[s[i]];
-         if(dec==-1) break;
-         switch(mode)
+        if (mapArgs[strArg].empty())
+            return true;
+        return (atoi(mapArgs[strArg]) != 0);
+    }
+    return fDefault;
+}
+
+bool SoftSetArg(const std::string& strArg, const std::string& strValue)
+{
+    if (mapArgs.count(strArg))
+        return false;
+    mapArgs[strArg] = strValue;
+    return true;
+}
+
+bool SoftSetBoolArg(const std::string& strArg, bool fValue)
+{
+    if (fValue)
+        return SoftSetArg(strArg, std::string("1"));
+    else
+        return SoftSetArg(strArg, std::string("0"));
+}
+
+
+string EncodeBase64(const unsigned char* pch, size_t len)
+{
+    static const char *pbase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+    string strRet="";
+    strRet.reserve((len+2)/3*4);
+
+    int mode=0, left=0;
+    const unsigned char *pchEnd = pch+len;
+
+    while (pch<pchEnd)
+    {
+        int enc = *(pch++);
+        switch (mode)
+        {
+            case 0: // we have no bits
+                strRet += pbase64[enc >> 2];
+                left = (enc & 3) << 4;
+                mode = 1;
+                break;
+
+            case 1: // we have two bits
+                strRet += pbase64[left | (enc >> 4)];
+                left = (enc & 15) << 2;
+                mode = 2;
+                break;
+
+            case 2: // we have four bits
+                strRet += pbase64[left | (enc >> 6)];
+                strRet += pbase64[enc & 63];
+                mode = 0;
+                break;
+        }
+    }
+
+    if (mode)
+    {
+        strRet += pbase64[left];
+        strRet += '=';
+        if (mode == 1)
+            strRet += '=';
+    }
+
+    return strRet;
+}
+
+string EncodeBase64(const string& str)
+{
+    return EncodeBase64((const unsigned char*)str.c_str(), str.size());
+}
+
+vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
+{
+    static const int decode64_table[256] =
+    {
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1,
+        -1, -1, -1, -1, -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
+        15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28,
+        29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+        49, 50, 51, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+    };
+
+    if (pfInvalid)
+        *pfInvalid = false;
+
+    vector<unsigned char> vchRet;
+    vchRet.reserve(strlen(p)*3/4);
+
+    int mode = 0;
+    int left = 0;
+
+    while (1)
+    {
+         int dec = decode64_table[*p];
+         if (dec == -1) break;
+         p++;
+         switch (mode)
          {
              case 0: // we have no bits and get 6
                  left = dec;
@@ -507,28 +642,53 @@ std::string DecodeBase64(const std::string &s)
                  break;
 
               case 1: // we have 6 bits and keep 4
-                 *optr++ = (left<<2) | (dec>>4);
+                  vchRet.push_back((left<<2) | (dec>>4));
                   left = dec & 15;
                   mode = 2;
                   break;
-                  
-             case 2: // we have 4 bits and get 6, we keep 2            
-                  *optr++ = (left<<4) | (dec>>2);
+
+             case 2: // we have 4 bits and get 6, we keep 2
+                 vchRet.push_back((left<<4) | (dec>>2));
                  left = dec & 3;
                  mode = 3;
                  break;
-                 
+
              case 3: // we have 2 bits and get 6
-                 *optr++ = (left<<6) | dec;
-                 mode=0;
+                 vchRet.push_back((left<<6) | dec);
+                 mode = 0;
                  break;
          }
     }
 
-    *optr=0;   
-    return buf;
+    if (pfInvalid)
+        switch (mode)
+        {
+            case 0: // 4n base64 characters processed: ok
+                break;
+
+            case 1: // 4n+1 base64 character processed: impossible
+                *pfInvalid = true;
+                break;
+
+            case 2: // 4n+2 base64 characters processed: require '=='
+                if (left || p[0] != '=' || p[1] != '=' || decode64_table[p[2]] != -1)
+                    *pfInvalid = true;
+                break;
+
+            case 3: // 4n+3 base64 characters processed: require '='
+                if (left || p[0] != '=' || decode64_table[p[1]] != -1)
+                    *pfInvalid = true;
+                break;
+        }
+
+    return vchRet;
 }
 
+string DecodeBase64(const string& str)
+{
+    vector<unsigned char> vchRet = DecodeBase64(str.c_str());
+    return string((const char*)&vchRet[0], vchRet.size());
+}
 
 
 bool WildcardMatch(const char* psz, const char* mask)
@@ -569,7 +729,7 @@ bool WildcardMatch(const string& str, const string& mask)
 
 void FormatException(char* pszMessage, std::exception* pex, const char* pszThread)
 {
-#ifdef __WXMSW__
+#ifdef WIN32
     char pszModule[MAX_PATH];
     pszModule[0] = '\0';
     GetModuleFileNameA(NULL, pszModule, sizeof(pszModule));
@@ -628,7 +788,7 @@ void PrintExceptionContinue(std::exception* pex, const char* pszThread)
 
 
 
-#ifdef __WXMSW__
+#ifdef WIN32
 typedef WINSHELLAPI BOOL (WINAPI *PSHGETSPECIALFOLDERPATHA)(HWND hwndOwner, LPSTR lpszPath, int nFolder, BOOL fCreate);
 
 string MyGetSpecialFolderPath(int nFolder, bool fCreate)
@@ -669,7 +829,7 @@ string GetDefaultDataDir()
     // Windows: C:\Documents and Settings\username\Application Data\Bitcoin
     // Mac: ~/Library/Application Support/Bitcoin
     // Unix: ~/.bitcoin
-#ifdef __WXMSW__
+#ifdef WIN32
     // Windows
     return MyGetSpecialFolderPath(CSIDL_APPDATA, true) + "\\Bitcoin";
 #else
@@ -679,7 +839,7 @@ string GetDefaultDataDir()
     string strHome = pszHome;
     if (strHome[strHome.size()-1] != '/')
         strHome += '/';
-#ifdef __WXMAC_OSX__
+#ifdef MAC_OSX
     // Mac
     strHome += "Library/Application Support/";
     filesystem::create_directory(strHome.c_str());
@@ -851,25 +1011,22 @@ int64 GetAdjustedTime()
     return GetTime() + nTimeOffset;
 }
 
-void AddTimeData(unsigned int ip, int64 nTime)
+void AddTimeData(const CNetAddr& ip, int64 nTime)
 {
     int64 nOffsetSample = nTime - GetTime();
 
     // Ignore duplicates
-    static set<unsigned int> setKnown;
+    static set<CNetAddr> setKnown;
     if (!setKnown.insert(ip).second)
         return;
 
     // Add data
-    static vector<int64> vTimeOffsets;
-    if (vTimeOffsets.empty())
-        vTimeOffsets.push_back(0);
-    vTimeOffsets.push_back(nOffsetSample);
-    printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), vTimeOffsets.back(), vTimeOffsets.back()/60);
+    vTimeOffsets.input(nOffsetSample);
+    printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
     if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
     {
-        sort(vTimeOffsets.begin(), vTimeOffsets.end());
-        int64 nMedian = vTimeOffsets[vTimeOffsets.size()/2];
+        int64 nMedian = vTimeOffsets.median();
+        std::vector<int64> vSorted = vTimeOffsets.sorted();
         // Only let other nodes change our time by so much
         if (abs64(nMedian) < 70 * 60)
         {
@@ -884,7 +1041,7 @@ void AddTimeData(unsigned int ip, int64 nTime)
             {
                 // If nobody has a time different than ours but within 5 minutes of ours, give a warning
                 bool fMatch = false;
-                BOOST_FOREACH(int64 nOffset, vTimeOffsets)
+                BOOST_FOREACH(int64 nOffset, vSorted)
                     if (nOffset != 0 && abs64(nOffset) < 5 * 60)
                         fMatch = true;
 
@@ -898,9 +1055,12 @@ void AddTimeData(unsigned int ip, int64 nTime)
                 }
             }
         }
-        BOOST_FOREACH(int64 n, vTimeOffsets)
-            printf("%+"PRI64d"  ", n);
-        printf("|  nTimeOffset = %+"PRI64d"  (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
+        if (fDebug) {
+            BOOST_FOREACH(int64 n, vSorted)
+                printf("%+"PRI64d"  ", n);
+            printf("|  ");
+        }
+        printf("nTimeOffset = %+"PRI64d"  (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
     }
 }
 
@@ -911,7 +1071,6 @@ void AddTimeData(unsigned int ip, int64 nTime)
 
 
 
-
 string FormatVersion(int nVersion)
 {
     if (nVersion%100 == 0)
@@ -922,7 +1081,7 @@ string FormatVersion(int nVersion)
 
 string FormatFullVersion()
 {
-    string s = FormatVersion(VERSION) + pszSubVer;
+    string s = FormatVersion(CLIENT_VERSION);
     if (VERSION_IS_BETA) {
         s += "-";
         s += _("beta");
@@ -930,6 +1089,17 @@ string FormatFullVersion()
     return s;
 }
 
+// Format the subversion field according to BIP 14 spec (https://en.bitcoin.it/wiki/BIP_0014)
+std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments)
+{
+    std::ostringstream ss;
+    ss << "/";
+    ss << name << ":" << FormatVersion(nClientVersion);
+    if (!comments.empty())
+        ss << "(" << boost::algorithm::join(comments, "; ") << ")";
+    ss << "/";
+    return ss.str();
+}
 
 
 
@@ -1036,7 +1206,18 @@ static void pop_lock()
 void CCriticalSection::Enter(const char* pszName, const char* pszFile, int nLine)
 {
     push_lock(this, CLockLocation(pszName, pszFile, nLine));
+#ifdef DEBUG_LOCKCONTENTION
+    bool result = mutex.try_lock();
+    if (!result)
+    {
+        printf("LOCKCONTENTION: %s\n", pszName);
+        printf("Locker: %s:%d\n", pszFile, nLine);
+        mutex.lock();
+        printf("Locked\n");
+    }
+#else
     mutex.lock();
+#endif
 }
 void CCriticalSection::Leave()
 {
@@ -1053,9 +1234,19 @@ bool CCriticalSection::TryEnter(const char* pszName, const char* pszFile, int nL
 
 #else
 
-void CCriticalSection::Enter(const char*, const char*, int)
+void CCriticalSection::Enter(const char* pszName, const char* pszFile, int nLine)
 {
+#ifdef DEBUG_LOCKCONTENTION
+    bool result = mutex.try_lock();
+    if (!result)
+    {
+        printf("LOCKCONTENTION: %s\n", pszName);
+        printf("Locker: %s:%d\n", pszFile, nLine);
+        mutex.lock();
+    }
+#else
     mutex.lock();
+#endif
 }
 
 void CCriticalSection::Leave()
@@ -1070,3 +1261,4 @@ bool CCriticalSection::TryEnter(const char*, const char*, int)
 }
 
 #endif /* DEBUG_LOCKORDER */
+