本文整理汇总了C++中Blob::constData方法的典型用法代码示例。如果您正苦于以下问题：C++ Blob::constData方法的具体用法？C++ Blob::constData怎么用？C++ Blob::constData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Blob的用法示例。
在下文中一共展示了Blob::constData方法的8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: Open
void SqliteConnection::Open(const path& file, FileAccess fileAccess, FileShare share) {
int flags = 0;
#if UCFG_USE_SQLITE==3
if (share == FileShare::None)
flags = SQLITE_OPEN_EXCLUSIVE;
#else
Blob utf = Encoding::UTF8.GetBytes(String(file));
#endif
switch (fileAccess) {
case FileAccess::ReadWrite: flags |= SQLITE_OPEN_READWRITE; break;
case FileAccess::Read: flags |= SQLITE_OPEN_READONLY; break;
default:
Throw(E_INVALIDARG);
}
sqlite_db *pdb;
#if UCFG_USE_SQLITE==3
SqliteCheck(m_db, ::sqlite3_open_v2(String(file), &pdb, flags, 0));
m_db.reset(pdb);
::sqlite3_extended_result_codes(m_db, true);
#else
SqliteCheck(m_db, ::sqlite4_open(0, (const char*)utf.constData(), &pdb));
m_db.reset(pdb);
#endif
ExecuteNonQuery("PRAGMA foreign_keys = ON");
}示例2: ExecuteNonQuery
void SqliteConnection::ExecuteNonQuery(RCString sql) {
String s = sql.TrimEnd();
if (s.Length > 1 && s[s.Length-1] != ';')
s += ";";
#if UCFG_USE_SQLITE==3
for (const void *tail=(const Char16*)s; SqliteIsComplete16(tail);) {
SqliteCommand cmd(_self);
SqliteCheck(_self, ::sqlite3_prepare16_v2(_self, tail, -1, &cmd.m_stmt, &tail));
#else
Blob utf = Encoding::UTF8.GetBytes(s);
for (const char *tail=(const char*)utf.constData(); SqliteIsComplete(tail);) {
SqliteCommand cmd(_self);
SqliteCheck(_self, ::sqlite_prepare(_self, tail, -1, &cmd.m_stmt, &tail));
#endif
cmd.ExecuteNonQuery();
}
}
Int64 SqliteConnection::get_LastInsertRowId() {
return sqlite_last_insert_rowid(m_db);
}
pair<int, int> SqliteConnection::Checkpoint(int eMode) {
#if UCFG_USE_SQLITE==3
int log, ckpt;
SqliteCheck(_self, ::sqlite3_wal_checkpoint_v2(_self, 0, eMode, &log, &ckpt));
return make_pair(log, ckpt);
#else
ExecuteNonQuery("PRAGMA lsm_checkpoint");
return make_pair(0, 0); //!!!?
#endif
}示例3: ConvertToBase58
String ConvertToBase58(const ConstBuf& cbuf) {
HashValue hash = HasherEng::GetCurrent()->HashForAddress(cbuf);
Blob v = cbuf + Blob(hash.data(), 4);
vector<char> r;
vector<byte> tmp(v.Size+1, 0);
std::reverse_copy(v.begin(), v.end(), tmp.begin());
for (BigInteger n(&tmp[0], tmp.size()); Sign(n);) {
pair<BigInteger, BigInteger> pp = div(n, 58);
n = pp.first;
r.insert(r.begin(), s_pszBase58[explicit_cast<int>(pp.second)]);
}
for (int i=0; i<v.Size && !v.constData()[i]; ++i)
r.insert(r.begin(), s_pszBase58[0]);
return String(&r[0], r.size());
}示例4: Create
void SqliteConnection::Create(RCString file) {
#if UCFG_USE_SQLITE==3
SqliteCheck(m_db, ::sqlite3_open16((const String::Char*)file, &m_db));
::sqlite_extended_result_codes(m_db, true); //!!!? only Sqlite3?
#else
Blob utf = Encoding::UTF8.GetBytes(file);
SqliteCheck(m_db, ::sqlite4_open(0, (const char*)utf.constData(), &m_db));
#endif
ExecuteNonQuery("PRAGMA encoding = \"UTF-8\"");
ExecuteNonQuery("PRAGMA foreign_keys = ON");
/*!!!
#ifndef SQLITE_OMIT_TRACE
sqlite3_trace(m_con.db, DbTraceHandler, this);
#endif
*/
}示例5: ConvertToBase58ShaSquare
String ConvertToBase58ShaSquare(const ConstBuf& cbuf) {
SHA256 sha;
HashValue hash = HashValue(sha.ComputeHash(sha.ComputeHash(cbuf)));
Blob v = cbuf + Blob(hash.data(), 4);
vector<char> r;
vector<byte> tmp(v.Size+1, 0);
std::reverse_copy(v.begin(), v.end(), tmp.begin());
for (BigInteger n(&tmp[0], tmp.size()); Sign(n);) {
pair<BigInteger, BigInteger> pp = div(n, 58);
n = pp.first;
r.insert(r.begin(), s_pszBase58[explicit_cast<int>(pp.second)]);
}
for (int i=0; i<v.Size && !v.constData()[i]; ++i)
r.insert(r.begin(), s_pszBase58[0]);
return String(&r[0], r.size());
}示例6: WriteAttributeString
void XmlTextWriter::WriteAttributeString(RCString name, RCString value) {
Blob blob = Encoding->GetBytes(name);
WriteAttributeString((const char*)blob.constData(), value);
}示例7: WriteQuotedString
void XmlTextWriter::WriteQuotedString(RCString value) {
Blob blob = Encoding->GetBytes(value);
m_os << quote(string((char*)blob.constData(), blob.Size));
}示例8:
void XptMessage::WriteString16(BinaryWriter& wr, RCString s) {
Blob blob = Encoding::UTF8.GetBytes(s);
uint16_t len = (uint16_t)blob.Size;
(wr << len).BaseStream.WriteBuffer(blob.constData(), len);
}