bool read_block(const std::string& filename, CBlock& block)
{
namespace fs = boost::filesystem;
fs::path testFile = fs::current_path() / "data" / filename;
#ifdef TEST_DATA_DIR
if (!fs::exists(testFile))
{
testFile = fs::path(BOOST_PP_STRINGIZE(TEST_DATA_DIR)) / filename;
}
#endif
FILE* fp = fopen(testFile.string().c_str(), "rb");
if (!fp) return false;
fseek(fp, 8, SEEK_SET); // skip msgheader/size
CAutoFile filein = CAutoFile(fp, SER_DISK, CLIENT_VERSION);
if (!filein) return false;
filein >> block;
return true;
}
CMasternodeDB::ReadResult CMasternodeDB::Read(CMasternodeMan& mnodemanToLoad)
{
int64_t nStart = GetTimeMillis();
// open input file, and associate with CAutoFile
FILE *file = fopen(pathMN.string().c_str(), "rb");
CAutoFile filein = CAutoFile(file, SER_DISK, CLIENT_VERSION);
if (!filein)
{
error("%s : Failed to open file %s", __func__, pathMN.string());
return FileError;
}
// use file size to size memory buffer
int fileSize = boost::filesystem::file_size(pathMN);
int dataSize = fileSize - sizeof(uint256);
// Don't try to resize to a negative number if file is small
if (dataSize < 0)
dataSize = 0;
vector<unsigned char> vchData;
vchData.resize(dataSize);
uint256 hashIn;
// read data and checksum from file
try {
filein.read((char *)&vchData[0], dataSize);
filein >> hashIn;
}
catch (std::exception &e) {
error("%s : Deserialize or I/O error - %s", __func__, e.what());
return HashReadError;
}
filein.fclose();
CDataStream ssMasternodes(vchData, SER_DISK, CLIENT_VERSION);
// verify stored checksum matches input data
uint256 hashTmp = Hash(ssMasternodes.begin(), ssMasternodes.end());
if (hashIn != hashTmp)
{
error("%s : Checksum mismatch, data corrupted", __func__);
return IncorrectHash;
}
unsigned char pchMsgTmp[4];
try {
// de-serialize file header (network specific magic number) and ..
ssMasternodes >> FLATDATA(pchMsgTmp);
// ... verify the network matches ours
if (memcmp(pchMsgTmp, Params().MessageStart(), sizeof(pchMsgTmp)))
{
error("%s : Invalid network magic number", __func__);
return IncorrectMagic;
}
// de-serialize address data into one CMnList object
ssMasternodes >> mnodemanToLoad;
}
catch (std::exception &e) {
mnodemanToLoad.Clear();
error("%s : Deserialize or I/O error - %s", __func__, e.what());
return IncorrectFormat;
}
mnodemanToLoad.CheckAndRemove(); // clean out expired
LogPrintf("Loaded info from mncache.dat %dms\n", GetTimeMillis() - nStart);
LogPrintf(" %s\n", mnodemanToLoad.ToString());
return Ok;
}
