C++ (Cpp) Status::IsNotFound 예제들

예제 #1

파일: leveldb.cpp 프로젝트: TEHmarshmallow/Marsmallows

void HandleError(const leveldb::Status &status) throw(leveldb_error) {
    if (status.ok())
        return;
    if (status.IsCorruption())
        throw leveldb_error("Database corrupted");
    if (status.IsIOError())
        throw leveldb_error("Database I/O error");
    if (status.IsNotFound())
        throw leveldb_error("Database entry missing");
    throw leveldb_error("Unknown database error");
}

예제 #2

파일: leveldbwrapper.cpp 프로젝트: aurarad/Auroracoin

void HandleError(const leveldb::Status &status) noexcept(false) {
    if (status.ok())
        return;
    LogPrintf("%s\n", status.ToString());
    if (status.IsCorruption())
        throw leveldb_error("Database corrupted");
    if (status.IsIOError())
        throw leveldb_error("Database I/O error");
    if (status.IsNotFound())
        throw leveldb_error("Database entry missing");
    throw leveldb_error("Unknown database error");
}

예제 #3

bool LevelDBDatabase::remove(const LevelDBSlice& key)
{
    leveldb::WriteOptions writeOptions;
    writeOptions.sync = true;

    const leveldb::Status s = m_db->Delete(writeOptions, makeSlice(key));
    if (s.ok())
        return true;
    if (s.IsNotFound())
        return false;
    LOG_ERROR("LevelDB remove failed: %s", s.ToString().c_str());
    return false;
}

예제 #4

파일: LevelDBDatabase.cpp 프로젝트: studiomobile/webcore

bool LevelDBDatabase::get(const LevelDBSlice& key, Vector<char>& value)
{
    std::string result;
    leveldb::ReadOptions readOptions;
    readOptions.verify_checksums = true; // FIXME: Disable this if the performance impact is too great.

    const leveldb::Status s = m_db->Get(readOptions, makeSlice(key), &result);
    if (s.ok()) {
        value = makeVector(result);
        return true;
    }
    if (s.IsNotFound())
        return false;
    LOG_ERROR("LevelDB get failed: %s", s.ToString().c_str());
    return false;
}

예제 #5

파일: leveldb_lib.cpp 프로젝트: pundunlabs/erl_leveldb

extern ERL_NIF_TERM make_status_tuple(ErlNifEnv* env, leveldb::Status status){
    const char* type;
    if(status.IsNotFound()){
	type = "not_found";
    }
    else if(status.IsCorruption()){
	type = "corruption";
    }
    else if(status.IsIOError()){
	type = "io_error";
    }
    else{
	type = "unspecified";
    }
    const char* stString = status.ToString().c_str();
    return enif_make_tuple2(env, enif_make_atom(env, "error"),
			    enif_make_atom(env, type));
}

예제 #6

static void histogramLevelDBError(const char* histogramName, const leveldb::Status& s)
{
    ASSERT(!s.ok());
    enum {
        LevelDBNotFound,
        LevelDBCorruption,
        LevelDBIOError,
        LevelDBOther,
        LevelDBMaxError
    };
    int levelDBError = LevelDBOther;
    if (s.IsNotFound())
        levelDBError = LevelDBNotFound;
    else if (s.IsCorruption())
        levelDBError = LevelDBCorruption;
    else if (s.IsIOError())
        levelDBError = LevelDBIOError;
    HistogramSupport::histogramEnumeration(histogramName, levelDBError, LevelDBMaxError);
}

예제 #7

파일: LevelDB.cpp 프로젝트: airdcnano/airdcnano

void LevelDB::checkDbError(leveldb::Status aStatus) throw(DbException) {
	if (aStatus.ok())
		return;

	if (aStatus.IsNotFound())
		return;

	string ret = Text::toUtf8(aStatus.ToString());

#ifdef _WIN32
	if (aStatus.IsCorruption() || aStatus.IsIOError()) {
		if (ret.back() != '.')
			ret += ".";
		ret += " " + STRING_F(DB_ERROR_HINT, STRING(HASHING));
	}
#endif

	throw DbException(ret);
}

예제 #8

bool LevelDBDatabase::safeGet(const LevelDBSlice& key, Vector<char>& value, bool& found, const LevelDBSnapshot* snapshot)
{
    found = false;
    std::string result;
    leveldb::ReadOptions readOptions;
    readOptions.verify_checksums = true; // FIXME: Disable this if the performance impact is too great.
    readOptions.snapshot = snapshot ? snapshot->m_snapshot : 0;

    const leveldb::Status s = m_db->Get(readOptions, makeSlice(key), &result);
    if (s.ok()) {
        found = true;
        value.clear();
        value.append(result.c_str(), result.length());
        return true;
    }
    if (s.IsNotFound())
        return true;
    LOG_ERROR("LevelDB get failed: %s", s.ToString().c_str());
    return false;
}