diff options
Diffstat (limited to 'src/util.cpp')
| -rw-r--r-- | src/util.cpp | 126 |
1 files changed, 32 insertions, 94 deletions
diff --git a/src/util.cpp b/src/util.cpp index 30590912ff..9e4b2b787e 100644 --- a/src/util.cpp +++ b/src/util.cpp @@ -5,8 +5,7 @@ #include "util.h" -#include "chainparams.h" -#include "netbase.h" +#include "chainparamsbase.h" #include "sync.h" #include "ui_interface.h" #include "uint256.h" @@ -168,16 +167,31 @@ void RandAddSeedPerfmon() #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]; - memset(pdata, 0, sizeof(pdata)); - unsigned long nSize = sizeof(pdata); - long ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, "Global", NULL, NULL, pdata, &nSize); + std::vector <unsigned char> vData(250000,0); + long ret = 0; + unsigned long nSize = 0; + const size_t nMaxSize = 10000000; // Bail out at more than 10MB of performance data + while (true) + { + nSize = vData.size(); + ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, "Global", NULL, NULL, begin_ptr(vData), &nSize); + if (ret != ERROR_MORE_DATA || vData.size() >= nMaxSize) + break; + vData.resize(std::max((vData.size()*3)/2, nMaxSize)); // Grow size of buffer exponentially + } RegCloseKey(HKEY_PERFORMANCE_DATA); if (ret == ERROR_SUCCESS) { - RAND_add(pdata, nSize, nSize/100.0); - OPENSSL_cleanse(pdata, nSize); - LogPrint("rand", "RandAddSeed() %lu bytes\n", nSize); + RAND_add(begin_ptr(vData), nSize, nSize/100.0); + OPENSSL_cleanse(begin_ptr(vData), nSize); + LogPrint("rand", "%s: %lu bytes\n", __func__, nSize); + } else { + static bool warned = false; // Warn only once + if (!warned) + { + LogPrintf("%s: Warning: RegQueryValueExA(HKEY_PERFORMANCE_DATA) failed with code %i\n", __func__, ret); + warned = true; + } } #endif } @@ -919,7 +933,7 @@ boost::filesystem::path GetDefaultDataDir() #endif } -static boost::filesystem::path pathCached[CChainParams::MAX_NETWORK_TYPES+1]; +static boost::filesystem::path pathCached[CBaseChainParams::MAX_NETWORK_TYPES+1]; static CCriticalSection csPathCached; const boost::filesystem::path &GetDataDir(bool fNetSpecific) @@ -928,8 +942,8 @@ const boost::filesystem::path &GetDataDir(bool fNetSpecific) LOCK(csPathCached); - int nNet = CChainParams::MAX_NETWORK_TYPES; - if (fNetSpecific) nNet = Params().NetworkID(); + int nNet = CBaseChainParams::MAX_NETWORK_TYPES; + if (fNetSpecific) nNet = BaseParams().NetworkID(); fs::path &path = pathCached[nNet]; @@ -948,7 +962,7 @@ const boost::filesystem::path &GetDataDir(bool fNetSpecific) path = GetDefaultDataDir(); } if (fNetSpecific) - path /= Params().DataDir(); + path /= BaseParams().DataDir(); fs::create_directories(path); @@ -957,7 +971,7 @@ const boost::filesystem::path &GetDataDir(bool fNetSpecific) void ClearDatadirCache() { - std::fill(&pathCached[0], &pathCached[CChainParams::MAX_NETWORK_TYPES+1], + std::fill(&pathCached[0], &pathCached[CBaseChainParams::MAX_NETWORK_TYPES+1], boost::filesystem::path()); } @@ -1141,15 +1155,15 @@ void ShrinkDebugFile() if (file && boost::filesystem::file_size(pathLog) > 10 * 1000000) { // Restart the file with some of the end - char pch[200000]; - fseek(file, -sizeof(pch), SEEK_END); - int nBytes = fread(pch, 1, sizeof(pch), file); + std::vector <char> vch(200000,0); + fseek(file, -vch.size(), SEEK_END); + int nBytes = fread(begin_ptr(vch), 1, vch.size(), file); fclose(file); file = fopen(pathLog.string().c_str(), "w"); if (file) { - fwrite(pch, 1, nBytes, file); + fwrite(begin_ptr(vch), 1, nBytes, file); fclose(file); } } @@ -1157,13 +1171,6 @@ void ShrinkDebugFile() fclose(file); } -// -// "Never go to sea with two chronometers; take one or three." -// Our three time sources are: -// - System clock -// - Median of other nodes clocks -// - The user (asking the user to fix the system clock if the first two disagree) -// static int64_t nMockTime = 0; // For unit testing int64_t GetTime() @@ -1178,75 +1185,6 @@ void SetMockTime(int64_t nMockTimeIn) nMockTime = nMockTimeIn; } -static CCriticalSection cs_nTimeOffset; -static int64_t nTimeOffset = 0; - -int64_t GetTimeOffset() -{ - LOCK(cs_nTimeOffset); - return nTimeOffset; -} - -int64_t GetAdjustedTime() -{ - return GetTime() + GetTimeOffset(); -} - -void AddTimeData(const CNetAddr& ip, int64_t nTime) -{ - int64_t nOffsetSample = nTime - GetTime(); - - LOCK(cs_nTimeOffset); - // Ignore duplicates - static set<CNetAddr> setKnown; - if (!setKnown.insert(ip).second) - return; - - // Add data - static CMedianFilter<int64_t> vTimeOffsets(200,0); - vTimeOffsets.input(nOffsetSample); - LogPrintf("Added time data, samples %d, offset %+d (%+d minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60); - if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1) - { - int64_t nMedian = vTimeOffsets.median(); - std::vector<int64_t> vSorted = vTimeOffsets.sorted(); - // Only let other nodes change our time by so much - if (abs64(nMedian) < 70 * 60) - { - nTimeOffset = nMedian; - } - else - { - nTimeOffset = 0; - - static bool fDone; - if (!fDone) - { - // If nobody has a time different than ours but within 5 minutes of ours, give a warning - bool fMatch = false; - BOOST_FOREACH(int64_t nOffset, vSorted) - if (nOffset != 0 && abs64(nOffset) < 5 * 60) - fMatch = true; - - if (!fMatch) - { - fDone = true; - string strMessage = _("Warning: Please check that your computer's date and time are correct! If your clock is wrong Bitcoin will not work properly."); - strMiscWarning = strMessage; - LogPrintf("*** %s\n", strMessage); - uiInterface.ThreadSafeMessageBox(strMessage, "", CClientUIInterface::MSG_WARNING); - } - } - } - if (fDebug) { - BOOST_FOREACH(int64_t n, vSorted) - LogPrintf("%+d ", n); - LogPrintf("| "); - } - LogPrintf("nTimeOffset = %+d (%+d minutes)\n", nTimeOffset, nTimeOffset/60); - } -} - uint32_t insecure_rand_Rz = 11; uint32_t insecure_rand_Rw = 11; void seed_insecure_rand(bool fDeterministic) |