ServerImpl::ServerImpl(connection::ConnectionPtr const &conn,
boost::optional<std::string> const &host,
boost::optional<int> const &port)
: m_conn(conn), m_ctx(make_shared<pluginhost::RegistrationContext>()),
m_host(host.get_value_or("localhost")),
m_port(port.get_value_or(util::UseDefaultPort)),
m_log(util::log::make_logger(util::log::OSVR_SERVER_LOG)) {
if (!m_conn) {
throw std::logic_error(
"Can't pass a null ConnectionPtr into Server constructor!");
}
osvr::connection::Connection::storeConnection(*m_ctx, m_conn);
// Get the underlying VRPN connection, and make sure it's OK.
auto vrpnConn = getVRPNConnection(m_conn);
if (!(vrpnConn->doing_okay())) {
throw ServerCreationFailure();
}
// Set up system device/system component
m_systemDevice = common::createServerDevice(
common::SystemComponent::deviceName(), vrpnConn);
m_systemComponent =
m_systemDevice->addComponent(common::SystemComponent::create());
m_systemComponent->registerClientRouteUpdateHandler(
&ServerImpl::m_handleUpdatedRoute, this);
// Things to do when we get a new incoming connection
// No longer doing hardware detect unconditionally here - see
// triggerHardwareDetect()
m_commonComponent =
m_systemDevice->addComponent(common::CommonComponent::create());
m_commonComponent->registerPingHandler([&] { m_queueTreeSend(); });
// Set up the default display descriptor.
m_tree.getNodeByPath("/display").value() =
common::elements::StringElement(util::makeString(display_json));
// Deal with updated device descriptors.
m_conn->registerDescriptorHandler([&] { m_handleDeviceDescriptors(); });
// Set up handlers to enter/exit idle sleep mode.
// Can't do this with the nice wrappers on the CommonComponent of the
// system device, I suppose since people aren't really connecting to
// that device.
vrpnConn->register_handler(
vrpnConn->register_message_type(vrpn_got_first_connection),
&ServerImpl::m_exitIdle, this);
vrpnConn->register_handler(
vrpnConn->register_message_type(vrpn_dropped_last_connection),
&ServerImpl::m_enterIdle, this);
}
StatusWith<Shard::QueryResponse> ShardLocal::_exhaustiveFindOnConfig(
OperationContext* txn,
const ReadPreferenceSetting& readPref,
const repl::ReadConcernLevel& readConcernLevel,
const NamespaceString& nss,
const BSONObj& query,
const BSONObj& sort,
boost::optional<long long> limit) {
auto replCoord = repl::ReplicationCoordinator::get(txn);
if (readConcernLevel == repl::ReadConcernLevel::kMajorityReadConcern) {
// Set up operation context with majority read snapshot so correct optime can be retrieved.
Status status = txn->recoveryUnit()->setReadFromMajorityCommittedSnapshot();
// Wait for any writes performed by this ShardLocal instance to be committed and visible.
Status readConcernStatus = replCoord->waitUntilOpTimeForRead(
txn, repl::ReadConcernArgs{_getLastOpTime(), readConcernLevel});
if (!readConcernStatus.isOK()) {
return readConcernStatus;
}
// Inform the storage engine to read from the committed snapshot for the rest of this
// operation.
status = txn->recoveryUnit()->setReadFromMajorityCommittedSnapshot();
if (!status.isOK()) {
return status;
}
} else {
invariant(readConcernLevel == repl::ReadConcernLevel::kLocalReadConcern);
}
DBDirectClient client(txn);
Query fullQuery(query);
if (!sort.isEmpty()) {
fullQuery.sort(sort);
}
fullQuery.readPref(readPref.pref, BSONArray());
try {
std::unique_ptr<DBClientCursor> cursor =
client.query(nss.ns().c_str(), fullQuery, limit.get_value_or(0));
if (!cursor) {
return {ErrorCodes::OperationFailed,
str::stream() << "Failed to establish a cursor for reading " << nss.ns()
<< " from local storage"};
}
std::vector<BSONObj> documentVector;
while (cursor->more()) {
BSONObj document = cursor->nextSafe().getOwned();
documentVector.push_back(std::move(document));
}
return Shard::QueryResponse{std::move(documentVector),
replCoord->getCurrentCommittedSnapshotOpTime()};
} catch (const DBException& ex) {
return ex.toStatus();
}
}
int binary::last_index_of(
value byte_, boost::optional<int> start_, boost::optional<int> stop_)
{
int byte = get_byte(byte_);
int start = start_.get_value_or(0);
if (start < 0)
start = 0;
int stop = stop_.get_value_or(get_length() - 1);
if (std::size_t(stop) >= get_length())
stop = get_length() - 1;
for (; start <= stop; --stop)
if (v_data[stop] == byte)
return stop;
return -1;
}
void file::create(char const *name, boost::optional<int> mode) {
security &sec = security::get();
if (!sec.check_path(name, security::CREATE))
throw exception("Could not create file (security)");
if (creat(name, mode.get_value_or(0666)) < 0)
throw exception("Could not create file");
}
VrpnBasedConnection::VrpnBasedConnection(
boost::optional<std::string const &> iface, boost::optional<int> port) {
int myPort = port.get_value_or(0);
if (iface && !(iface->empty())) {
m_initConnection(iface->c_str(), myPort);
} else {
m_initConnection(nullptr, myPort);
}
}
StatusWith<Shard::QueryResponse> ShardLocal::_exhaustiveFindOnConfig(
OperationContext* txn,
const ReadPreferenceSetting& readPref,
const NamespaceString& nss,
const BSONObj& query,
const BSONObj& sort,
boost::optional<long long> limit) {
// Set up operation context with majority read snapshot so correct optime can be retrieved.
Status status = txn->recoveryUnit()->setReadFromMajorityCommittedSnapshot();
auto replCoord = repl::ReplicationCoordinator::get(txn);
// Ensure timeout is set on the txn so we don't wait forever for the snapshot.
// TODO (SERVER-18277): Remove this
CurOp::get(txn)->ensureStarted();
// Wait until a snapshot is available.
while (status == ErrorCodes::ReadConcernMajorityNotAvailableYet) {
LOG(1) << "Waiting for ReadFromMajorityCommittedSnapshot to become available";
replCoord->waitUntilSnapshotCommitted(txn, SnapshotName::min());
status = txn->recoveryUnit()->setReadFromMajorityCommittedSnapshot();
}
if (!status.isOK()) {
return status;
}
DBDirectClient client(txn);
Query fullQuery(query);
if (!sort.isEmpty()) {
fullQuery.sort(sort);
}
fullQuery.readPref(readPref.pref, BSONArray());
try {
std::unique_ptr<DBClientCursor> cursor =
client.query(nss.ns().c_str(), fullQuery, limit.get_value_or(0));
if (!cursor) {
return {ErrorCodes::OperationFailed,
str::stream() << "Failed to establish a cursor for reading " << nss.ns()
<< " from local storage"};
}
std::vector<BSONObj> documentVector;
while (cursor->more()) {
BSONObj document = cursor->nextSafe().getOwned();
documentVector.push_back(std::move(document));
}
return Shard::QueryResponse{std::move(documentVector),
replCoord->getCurrentCommittedSnapshotOpTime()};
} catch (const DBException& ex) {
return ex.toStatus();
}
}
object byte_string::substring(int first, boost::optional<int> last_) {
if (first < 0)
first = 0;
if (std::size_t(first) > get_length())
first = get_length();
int last = last_.get_value_or(get_length());
if (last < 0)
last = 0;
if (std::size_t(last) > get_length())
last = get_length();
if (last < first)
std::swap(first, last);
return create(&get_data()[first], last - first);
}
std::pair<std::size_t, std::size_t>
binary::length_range(int start, boost::optional<int> length_) {
if (start < 0)
start += get_length();
if (start < 0)
start = 0;
if (std::size_t(start) >= get_length())
start = get_length();
int length = length_.get_value_or(get_length() - start);
if (length < 0)
length = 0;
if (std::size_t(length) > get_length() - start)
length = get_length() - start;
return std::pair<std::size_t, std::size_t>(start, start + length);
}
void Remote::process(const Coordinate & pos, boost::optional<floatCoordinate> normal) {
//distance vector
floatCoordinate deltaPos = pos - state->viewerState->currentPosition;
const float jumpThreshold = 0.5f * Dataset::current().cubeEdgeLength * state->M * Dataset::current().magnification;//approximately inside sc
if (deltaPos.length() > jumpThreshold) {
state->viewer->setPosition(pos);
} else if (pos != state->viewerState->currentPosition) {
rotate = normal.is_initialized();
normal = normal.get_value_or({});
targetPos = pos;
recenteringOffset = pos - state->viewerState->currentPosition;
elapsed.restart();
timer.start(ms);
state->viewer->userMoveClear();
remoteWalk();
}
}
void CClient::installNewBattleInterface(std::shared_ptr<CBattleGameInterface> battleInterface, boost::optional<PlayerColor> color, bool needCallback)
{
boost::unique_lock<boost::recursive_mutex> un(*CPlayerInterface::pim);
PlayerColor colorUsed = color.get_value_or(PlayerColor::UNFLAGGABLE);
if(!color)
privilegedBattleEventReceivers.push_back(battleInterface);
battleints[colorUsed] = battleInterface;
if(needCallback)
{
logGlobal->trace("\tInitializing the battle interface for player %s", *color);
auto cbc = std::make_shared<CBattleCallback>(color, this);
battleCallbacks[colorUsed] = cbc;
battleInterface->init(cbc);
}
}
void CClient::installNewPlayerInterface(std::shared_ptr<CGameInterface> gameInterface, boost::optional<PlayerColor> color, bool battlecb)
{
boost::unique_lock<boost::recursive_mutex> un(*CPlayerInterface::pim);
PlayerColor colorUsed = color.get_value_or(PlayerColor::UNFLAGGABLE);
if(!color)
privilegedGameEventReceivers.push_back(gameInterface);
playerint[colorUsed] = gameInterface;
logGlobal->trace("\tInitializing the interface for player %s", colorUsed);
auto cb = std::make_shared<CCallback>(gs, color, this);
callbacks[colorUsed] = cb;
battleCallbacks[colorUsed] = cb;
gameInterface->init(cb);
installNewBattleInterface(gameInterface, color, battlecb);
}
StatusWith<std::vector<ChunkType>> readShardChunks(OperationContext* opCtx,
const NamespaceString& nss,
const BSONObj& query,
const BSONObj& sort,
boost::optional<long long> limit,
const OID& epoch) {
// Query to retrieve the chunks.
Query fullQuery(query);
fullQuery.sort(sort);
try {
DBDirectClient client(opCtx);
std::string chunkMetadataNs = ChunkType::ShardNSPrefix + nss.ns();
std::unique_ptr<DBClientCursor> cursor =
client.query(chunkMetadataNs, fullQuery, limit.get_value_or(0));
if (!cursor) {
return {ErrorCodes::OperationFailed,
str::stream() << "Failed to establish a cursor for reading " << chunkMetadataNs
<< " from local storage"};
}
std::vector<ChunkType> chunks;
while (cursor->more()) {
BSONObj document = cursor->nextSafe().getOwned();
auto statusWithChunk = ChunkType::fromShardBSON(document, epoch);
if (!statusWithChunk.isOK()) {
return {statusWithChunk.getStatus().code(),
str::stream() << "Failed to parse chunk '" << document.toString()
<< "' due to "
<< statusWithChunk.getStatus().reason()};
}
chunks.push_back(std::move(statusWithChunk.getValue()));
}
return chunks;
} catch (const DBException& ex) {
return ex.toStatus();
}
}
std::pair<std::size_t, std::size_t>
binary::range(int begin, boost::optional<int> end_) {
int n = get_length();
if (begin < 0)
begin = n + begin;
int end = end_.get_value_or(n);
if (end < 0)
end = n + end;
if (begin > n)
begin = n;
if (end > n)
end = n;
if (end < begin)
end = begin;
return std::pair<std::size_t, std::size_t>(begin, end);
}