本文整理汇总了C++中CAutoFile::read方法的典型用法代码示例。如果您正苦于以下问题：C++ CAutoFile::read方法的具体用法？C++ CAutoFile::read怎么用？C++ CAutoFile::read使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CAutoFile的用法示例。
在下文中一共展示了CAutoFile::read方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Read
bool CBitcoinAddrDb::Read(CAddrMan& addr)
{
boost::filesystem::path pathAddr = GetDataDir() / m_addrFileName;
// open input file, and associate with CAutoFile
FILE *file = fopen(pathAddr.string().c_str(), "rb");
CAutoFile filein = CAutoFile(file, SER_DISK, BITCOIN_CLIENT_VERSION);
if (!filein)
{
return false;
}
// use file size to size memory buffer
int fileSize = GetFilesize(filein);
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)
{
return false;
}
filein.fclose();
CDataStream ssPeers(vchData, SER_DISK, BITCOIN_CLIENT_VERSION);
// verify stored checksum matches input data
uint256 hashTmp = Hash(ssPeers.begin(), ssPeers.end());
if (hashIn != hashTmp)
{
return false;
}
unsigned char pchMsgTmp[4];
try
{
// de-serialize file header (network specific magic number) and ..
ssPeers >> FLATDATA(pchMsgTmp);
// ... verify the network matches ours
if (memcmp(pchMsgTmp, BitcoinMessageStart, sizeof(pchMsgTmp)))
{
return false;
}
// de-serialize address data into one CAddrMan object
ssPeers >> addr;
}
catch (std::exception &e)
{
return false;
}
return true;
}示例2: Read
bool CAddrDB::Read(CAddrMan& addr)
{
// open input file, and associate with CAutoFile
FILE *file = fopen(pathAddr.string().c_str(), "rb");
CAutoFile filein = CAutoFile(file, SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CAddrman::Read() : open failed");
// use file size to size memory buffer
int fileSize = boost::filesystem::file_size(pathAddr);
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) {
return error("CAddrman::Read() 2 : I/O error or stream data corrupted");
}
filein.fclose();
CDataStream ssPeers(vchData, SER_DISK, CLIENT_VERSION);
// verify stored checksum matches input data
uint256 hashTmp = Hash(ssPeers.begin(), ssPeers.end());
if (hashIn != hashTmp)
return error("CAddrman::Read() : checksum mismatch; data corrupted");
unsigned char pchMsgTmp[4];
try {
// de-serialize file header (pchMessageStart magic number) and
ssPeers >> FLATDATA(pchMsgTmp);
// verify the network matches ours
if (memcmp(pchMsgTmp, pchMessageStart, sizeof(pchMsgTmp)))
return error("CAddrman::Read() : invalid network magic number");
// de-serialize address data into one CAddrMan object
ssPeers >> addr;
}
catch (std::exception &e) {
return error("CAddrman::Read() : I/O error or stream data corrupted");
}
return true;
}示例3: Read
bool CAddrDB::Read(CAddrMan& addr)
{
// open input file, and associate with CAutoFile открытые входной файл и ассоциировать с CAutoFile
FILE *file = fopen(pathAddr.string().c_str(), "rb");
CAutoFile filein = CAutoFile(file, SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CAddrman::Read() : open failed");
// use file size to size memory buffer использовать размер файла для размера буфера памяти
int fileSize = GetFilesize(filein);
int dataSize = fileSize - sizeof(uint256);
//Don't try to resize to a negative number if file is small не пытайтесь изменить размер на отрицательное число, если файл небольшой
if ( dataSize < 0 ) dataSize = 0;
vector<unsigned char> vchData;
vchData.resize(dataSize);
uint256 hashIn;
// read data and checksum from file чтение данных и контрольной суммы из файла
try {
filein.read((char *)&vchData[0], dataSize);
filein >> hashIn;
}
catch (std::exception &e) {
return error("CAddrman::Read() 2 : I/O error or stream data corrupted");
}
filein.fclose();
CDataStream ssPeers(vchData, SER_DISK, CLIENT_VERSION);
// verify stored checksum matches input data проверить совпадение сохранённой контрольной суммы входным данным
uint256 hashTmp = Hash(ssPeers.begin(), ssPeers.end());
if (hashIn != hashTmp)
return error("CAddrman::Read() : checksum mismatch; data corrupted");
unsigned char pchMsgTmp[4];
try {
// de-serialize file header (network specific magic number) and .. десериализация заголовка файла (сетевой специфический магический номер) и ..
ssPeers >> FLATDATA(pchMsgTmp);
// ... verify the network matches ours ... проверка нашего сетевого соответствия
if (memcmp(pchMsgTmp, Params().MessageStart(), sizeof(pchMsgTmp)))
return error("CAddrman::Read() : invalid network magic number");
// de-serialize address data into one CAddrMan object десериализация адресных данных в один объект CAddrMan
ssPeers >> addr;
}
catch (std::exception &e) {
return error("CAddrman::Read() : I/O error or stream data corrupted");
}
return true;
}示例4: Read
bool CAddrDB::Read(CAddrMan& addr)
{
// open input file, and associate with CAutoFile
FILE *file = fopen(pathAddr.string().c_str(), "rb");
CAutoFile filein = CAutoFile(file, SER_DISK, CLIENT_VERSION);
if(!filein)
return(error("CAddrDB::Read() : fopen(%s) failed", pathAddr.string().c_str()));
// use file size to size memory buffer
int fileSize = GetFilesize(filein);
int dataSize = fileSize - sizeof(uint256);
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) {
return(error("CAddrDB::Read() : I/O error"));
}
filein.fclose();
CDataStream ssPeers(vchData, SER_DISK, CLIENT_VERSION);
// verify stored checksum matches input data
uint256 hashTmp = Hash(ssPeers.begin(), ssPeers.end());
if(hashIn != hashTmp)
return(error("CAddrDB::Read() : checksum mismatch"));
// de-serialize address data
unsigned char pchMsgTmp[4];
try {
ssPeers >> FLATDATA(pchMsgTmp);
ssPeers >> addr;
}
catch(std::exception &e) {
return(error("CAddrDB::Read() #2 : I/O error"));
}
// finally, verify the network matches ours
if(memcmp(pchMsgTmp, pchMessageStart, sizeof(pchMsgTmp)))
return(error("CAddrDB::Read() : invalid network magic number"));
return(true);
}示例5: GetClottoFileHash
return true;
}
uint256 CLotData::GetClottoFileHash() {
CAutoFile fileout = CAutoFile(OpenFile(0, true), SER_DISK, CLIENT_VERSION);
if (!fileout)
return error("CLotDB::GetClottoFileHash : open failed");
fseek(fileout, 0, SEEK_END); //move the point to the end of file
long filesize = ftell(fileout); //get the file size
if (filesize < 0)
return error("CLotDB::GetClottoFileHash : ftell failed");
rewind(fileout); //move the point to the start of file
vector<unsigned char> vchData;
vchData.resize(filesize);
try {
fileout.read((char *) &vchData[0], filesize);
} catch (std::exception &e) {
return error("CLotDB::GetClottoFileHash : read failed");
}
fileout.fclose();
示例6: Read
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;
}