34 const string CConnectionRepository::_overflow_event_name =
"CRDatagramOverflow";
37 PStatCollector CConnectionRepository::_update_pcollector(
"App:Show code:readerPollTask:Update");
43 CConnectionRepository::
44 CConnectionRepository(
bool has_owner_view,
bool threaded_net) :
45 _lock(
"CConnectionRepository::_lock"),
47 _python_repository(nullptr),
53 _cw(&_qcm, threaded_net ? 1 : 0),
54 _qcr(&_qcm, threaded_net ? 1 : 0),
56 #ifdef WANT_NATIVE_NET
57 _bdc(4096000,4096000,1400),
60 _client_datagram(true),
61 _handle_datagrams_internally(handle_datagrams_internally),
62 _simulated_disconnect(false),
63 _verbose(distributed_cat.is_spam()),
68 _has_owner_view(has_owner_view),
69 _handle_c_updates(true),
70 _want_message_bundling(true),
74 #if defined(HAVE_NET) && defined(SIMULATE_NETWORK_DELAY)
75 if (min_lag != 0.0 || max_lag != 0.0) {
76 _qcr.start_delay(min_lag, max_lag);
79 _tcp_header_size = tcp_header_size;
85 CConnectionRepository::
86 ~CConnectionRepository() {
98 _tcp_header_size = tcp_header_size;
101 if (_http_conn !=
nullptr) {
102 _http_conn->set_tcp_header_size(tcp_header_size);
107 _cw.set_tcp_header_size(tcp_header_size);
108 _qcr.set_tcp_header_size(tcp_header_size);
118 void CConnectionRepository::
119 set_connection_http(HTTPChannel *channel) {
123 nassertv(channel->is_connection_ready());
124 _http_conn = channel->get_connection();
125 _http_conn->set_tcp_header_size(_tcp_header_size);
126 #ifdef SIMULATE_NETWORK_DELAY
127 if (min_lag != 0.0 || max_lag != 0.0) {
128 _http_conn->start_delay(min_lag, max_lag);
139 SocketStream *CConnectionRepository::
153 bool CConnectionRepository::
154 try_connect_net(
const URLSpec &url) {
161 game_server_timeout_ms);
163 if (_net_conn !=
nullptr) {
164 _net_conn->set_no_delay(
true);
165 _qcr.add_connection(_net_conn);
173 #ifdef WANT_NATIVE_NET
178 bool CConnectionRepository::
179 connect_native(
const URLSpec &url) {
185 _bdc.ClearAddresses();
186 _bdc.AddAddress(addr);
187 return _bdc.DoConnect();
192 #ifdef SIMULATE_NETWORK_DELAY
206 void CConnectionRepository::
207 start_delay(
double min_delay,
double max_delay) {
210 if (min_delay != 0.0 || max_delay != 0.0) {
212 _qcr.start_delay(min_delay, max_delay);
215 if (_http_conn !=
nullptr) {
216 _http_conn->start_delay(min_delay, max_delay);
225 #ifdef SIMULATE_NETWORK_DELAY
231 void CConnectionRepository::
239 if (_http_conn !=
nullptr) {
240 _http_conn->stop_delay();
255 if (_simulated_disconnect) {
258 #ifdef WANT_NATIVE_NET
263 while (do_check_datagram()) {
265 describe_message(nout,
"RECV", _dg);
271 if (!_client_datagram) {
272 unsigned char wc_cnt;
274 _msg_channels.clear();
275 for (
unsigned char lp1 = 0; lp1 < wc_cnt; lp1++) {
277 _msg_channels.push_back(schan);
284 if (_python_repository !=
nullptr) {
285 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
286 PyGILState_STATE gstate;
287 gstate = PyGILState_Ensure();
289 PyObject *value = PyLong_FromUnsignedLongLong(_msg_sender);
290 PyObject_SetAttrString(_python_repository,
"msgSender", value);
292 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
293 PyGILState_Release(gstate);
301 if (!_handle_datagrams_internally) {
307 case CLIENT_OBJECT_SET_FIELD:
308 case STATESERVER_OBJECT_SET_FIELD:
309 if (_handle_c_updates) {
310 if (_has_owner_view) {
311 if (!handle_update_field_owner()) {
315 if (!handle_update_field()) {
346 #ifdef WANT_NATIVE_NET
348 return (_bdc.IsConnected());
353 if (_qcm.reset_connection_available()) {
355 if (_qcm.get_reset_connection(reset_connection)) {
356 _qcm.close_connection(reset_connection);
357 if (reset_connection == _net_conn) {
370 if (!_http_conn->is_closed()) {
376 _http_conn =
nullptr;
392 if (_simulated_disconnect) {
393 distributed_cat.warning()
394 <<
"Unable to send datagram during simulated disconnect.\n";
399 describe_message(nout,
"SEND", dg);
407 #ifdef WANT_NATIVE_NET
409 bool result = _bdc.SendMessage(dg);
410 if (!result && _bdc.IsConnected()) {
412 std::ostringstream s;
414 #if PY_VERSION_HEX >= 0x03030000
415 PyObject *exc_type = PyExc_ConnectionError;
417 PyObject *exc_type = PyExc_OSError;
420 s << endl <<
"Error sending message: " << endl;
422 s <<
"Message data: " << dg.
get_data() << endl;
424 string message = s.str();
425 PyErr_SetString(exc_type, message.c_str());
434 _cw.send(dg, _net_conn);
441 if (!_http_conn->send_datagram(dg)) {
442 distributed_cat.warning()
443 <<
"Could not send datagram.\n";
451 distributed_cat.warning()
452 <<
"Unable to send datagram after connection is closed.\n";
471 nout <<
"CR::SEND:BUNDLE_START(" << _bundling_msgs <<
")" << endl;
473 if (_bundling_msgs == 0) {
474 _bundle_msgs.clear();
485 nassertv(_bundling_msgs);
490 nout <<
"CR::SEND:BUNDLE_FINISH(" << _bundling_msgs <<
")" << endl;
502 BundledMsgVector::const_iterator bmi;
503 for (bmi = _bundle_msgs.begin(); bmi != _bundle_msgs.end(); bmi++) {
520 _bundle_msgs.clear();
526 void CConnectionRepository::
542 if (_simulated_disconnect) {
546 #ifdef WANT_NATIVE_NET
553 return _net_conn->consider_flush();
559 return _http_conn->consider_flush();
574 if (_simulated_disconnect) {
577 #ifdef WANT_NATIVE_NET
584 return _net_conn->flush();
590 return _http_conn->flush();
604 #ifdef WANT_NATIVE_NET
607 _bdc.ClearAddresses();
612 _qcm.close_connection(_net_conn);
621 _http_conn =
nullptr;
625 _simulated_disconnect =
false;
645 bool CConnectionRepository::
646 do_check_datagram() {
647 #ifdef WANT_NATIVE_NET
649 return _bdc.GetMessage(_dg);
654 _net_conn->consider_flush();
655 if (_qcr.get_overflow_flag()) {
657 _qcr.reset_overflow_flag();
659 return (_qcr.data_available() && _qcr.get_data(_dg));
665 _http_conn->consider_flush();
666 return _http_conn->receive_datagram(_dg);
680 bool CConnectionRepository::
681 handle_update_field() {
683 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
684 PyGILState_STATE gstate;
685 gstate = PyGILState_Ensure();
690 if (_python_repository !=
nullptr)
693 PyObject_GetAttrString(_python_repository,
"doId2do");
694 nassertr(doId2do !=
nullptr,
false);
696 #ifdef USE_PYTHON_2_2_OR_EARLIER
697 PyObject *doId = PyInt_FromLong(do_id);
699 PyObject *doId = PyLong_FromUnsignedLong(do_id);
701 PyObject *distobj = PyDict_GetItem(doId2do, doId);
705 if (distobj !=
nullptr) {
706 PyObject *dclass_obj = PyObject_GetAttrString(distobj,
"dclass");
707 nassertr(dclass_obj !=
nullptr,
false);
710 PyObject *dclass_this = PyObject_GetAttrString(dclass_obj,
"this");
711 Py_DECREF(dclass_obj);
712 nassertr(dclass_this !=
nullptr,
false);
715 Py_DECREF(dclass_this);
719 if (_in_quiet_zone) {
720 PyObject *neverDisable = PyObject_GetAttrString(distobj,
"neverDisable");
721 nassertr(neverDisable !=
nullptr,
false);
723 unsigned int cNeverDisable = PyLong_AsLong(neverDisable);
724 if (!cNeverDisable) {
727 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
728 PyGILState_Release(gstate);
739 dclass->receive_update(distobj, _di);
742 if (PyErr_Occurred()) {
743 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
744 PyGILState_Release(gstate);
752 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
753 PyGILState_Release(gstate);
768 bool CConnectionRepository::
769 handle_update_field_owner() {
771 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
772 PyGILState_STATE gstate;
773 gstate = PyGILState_Ensure();
778 if (_python_repository !=
nullptr) {
780 PyObject_GetAttrString(_python_repository,
"doId2do");
781 nassertr(doId2do !=
nullptr,
false);
783 PyObject *doId2ownerView =
784 PyObject_GetAttrString(_python_repository,
"doId2ownerView");
785 nassertr(doId2ownerView !=
nullptr,
false);
787 #ifdef USE_PYTHON_2_2_OR_EARLIER
788 PyObject *doId = PyInt_FromLong(do_id);
790 PyObject *doId = PyLong_FromUnsignedLong(do_id);
794 PyObject *distobjOV = PyDict_GetItem(doId2ownerView, doId);
795 Py_DECREF(doId2ownerView);
797 if (distobjOV !=
nullptr) {
798 PyObject *dclass_obj = PyObject_GetAttrString(distobjOV,
"dclass");
799 nassertr(dclass_obj !=
nullptr,
false);
801 PyObject *dclass_this = PyObject_GetAttrString(dclass_obj,
"this");
802 Py_DECREF(dclass_obj);
803 nassertr(dclass_this !=
nullptr,
false);
806 Py_DECREF(dclass_this);
819 Py_INCREF(distobjOV);
823 dclass->receive_update(distobjOV, _odi);
824 Py_DECREF(distobjOV);
826 if (PyErr_Occurred()) {
827 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
828 PyGILState_Release(gstate);
836 PyObject *distobj = PyDict_GetItem(doId2do, doId);
840 if (distobj !=
nullptr) {
841 PyObject *dclass_obj = PyObject_GetAttrString(distobj,
"dclass");
842 nassertr(dclass_obj !=
nullptr,
false);
844 PyObject *dclass_this = PyObject_GetAttrString(dclass_obj,
"this");
845 Py_DECREF(dclass_obj);
846 nassertr(dclass_this !=
nullptr,
false);
849 Py_DECREF(dclass_this);
864 dclass->receive_update(distobj, _di);
867 if (PyErr_Occurred()) {
868 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
869 PyGILState_Release(gstate);
877 #if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
878 PyGILState_Release(gstate);
889 void CConnectionRepository::
890 describe_message(std::ostream &out,
const string &prefix,
897 bool is_update =
false;
898 string full_prefix =
"CR::" + prefix;
900 if (!_client_datagram)
903 for( ;mcnt > 0; mcnt--)
904 packer.RAW_UNPACK_CHANNEL();
906 packer.RAW_UNPACK_CHANNEL();
908 is_update = (msg_type == STATESERVER_OBJECT_SET_FIELD);
912 is_update = (msg_type == CLIENT_OBJECT_SET_FIELD);
921 if (_python_repository !=
nullptr) {
922 PyObject *msgId = PyLong_FromLong(msg_type);
923 nassertv(msgId !=
nullptr);
924 #if PY_MAJOR_VERSION >= 3
925 PyObject *methodName = PyUnicode_FromString(
"_getMsgName");
927 PyObject *methodName = PyString_FromString(
"_getMsgName");
929 nassertv(methodName !=
nullptr);
931 PyObject *result = PyObject_CallMethodObjArgs(_python_repository, methodName,
933 nassertv(result !=
nullptr);
935 #if PY_MAJOR_VERSION >= 3
936 msgName += string(PyUnicode_AsUTF8(result));
938 msgName += string(PyString_AsString(result));
941 Py_DECREF(methodName);
946 if (msgName.length() == 0) {
947 msgName +=
"unknown message ";
951 out << full_prefix <<
":" << msgName <<
"\n";
961 if (_python_repository !=
nullptr) {
963 PyObject_GetAttrString(_python_repository,
"doId2do");
964 nassertv(doId2do !=
nullptr);
966 #ifdef USE_PYTHON_2_2_OR_EARLIER
967 PyObject *doId = PyInt_FromLong(do_id);
969 PyObject *doId = PyLong_FromUnsignedLong(do_id);
971 PyObject *distobj = PyDict_GetItem(doId2do, doId);
975 if (distobj !=
nullptr) {
976 PyObject *dclass_obj = PyObject_GetAttrString(distobj,
"dclass");
977 nassertv(dclass_obj !=
nullptr);
979 PyObject *dclass_this = PyObject_GetAttrString(dclass_obj,
"this");
980 Py_DECREF(dclass_obj);
981 nassertv(dclass_this !=
nullptr);
983 dclass = (
DCClass *)PyLong_AsVoidPtr(dclass_this);
984 Py_DECREF(dclass_this);
991 if (dclass ==
nullptr) {
992 out << full_prefix <<
"update for unknown object " << do_id
993 <<
", field " << field_id <<
"\n";
996 out << full_prefix <<
997 ":" << dclass->
get_name() <<
"(" << do_id <<
").";
999 if (field ==
nullptr) {
1000 out <<
"unknown field " << field_id <<
"\n";
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
bool flush()
Sends the most recently queued data now.
void abandon_message_bundles()
throw out any msgs that have been queued up for message bundles
bool is_bundling_messages() const
Returns true if repository is queueing outgoing messages into a message bundle.
bool get_want_message_bundling() const
Returns true if message bundling enabled.
bool is_connected()
Returns true if the connection to the gameserver is established and still good, false if we are not c...
void disconnect()
Closes the connection to the server.
bool send_datagram(const Datagram &dg)
Queues the indicated datagram for sending to the server.
void shutdown()
May be called at application shutdown to ensure all threads are cleaned up.
static const std::string & get_overflow_event_name()
Returns event string that will be thrown if the datagram reader queue overflows.
void set_tcp_header_size(int tcp_header_size)
Sets the header size of TCP packets.
bool check_datagram()
Returns true if a new datagram is available, false otherwise.
bool consider_flush()
Sends the most recently queued data if enough time has elapsed.
void send_message_bundle(unsigned int channel, unsigned int sender_channel)
Send network messages queued up since startMessageBundle was called.
bool get_verbose() const
Returns the current setting of the verbose flag.
void start_message_bundle()
Send a set of messages to the state server that will be processed atomically.
Represents a single TCP or UDP socket for input or output.
Defines a particular DistributedClass as read from an input .dc file.
const std::string & get_name() const
Returns the name of this class.
DCField * get_field_by_index(int index_number) const
Returns a pointer to the DCField that has the indicated index number.
A single field of a Distributed Class, either atomic or molecular.
bool is_ownrecv() const
Returns true if the "ownrecv" flag is set for this field, false otherwise.
const std::string & get_name() const
Returns the name of this field, or empty string if the field is unnamed.
This class can be used for packing a series of numeric and string data into a binary stream,...
unsigned int raw_unpack_uint32()
Unpacks the data from the buffer between unpacking sessions.
void begin_unpack(const DCPackerInterface *root)
Begins an unpacking session.
bool end_unpack()
Finishes the unpacking session.
void set_unpack_data(const std::vector< unsigned char > &data)
Sets up the unpack_data pointer.
unsigned int raw_unpack_uint8()
Unpacks the data from the buffer between unpacking sessions.
std::string unpack_and_format(bool show_field_names=true)
Unpacks an object and formats its value into a syntax suitable for parsing in the dc file (e....
unsigned int raw_unpack_uint16()
Unpacks the data from the buffer between unpacking sessions.
A class to retrieve the individual data elements previously stored in a Datagram.
uint8_t get_uint8()
Extracts an unsigned 8-bit integer.
uint64_t get_uint64()
Extracts an unsigned 64-bit integer.
uint16_t get_uint16()
Extracts an unsigned 16-bit integer.
uint32_t get_uint32()
Extracts an unsigned 32-bit integer.
vector_uchar get_remaining_bytes() const
Returns the remaining bytes in the datagram as a string, but does not extract them from the iterator.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
size_t get_length() const
Returns the number of bytes in the datagram.
std::string get_message() const
Returns the datagram's data as a string.
void dump_hex(std::ostream &out, unsigned int indent=0) const
Writes a representation of the entire datagram contents, as a sequence of hex (and ASCII) values.
void add_uint64(uint64_t value)
Adds an unsigned 64-bit integer to the datagram.
void add_string(const std::string &str)
Adds a variable-length string to the datagram.
const void * get_data() const
Returns a pointer to the beginning of the datagram's data.
void add_int8(int8_t value)
Adds a signed 8-bit integer to the datagram.
A lightweight class that represents a single element that may be timed and/or counted via stats.
A lightweight class that can be used to automatically start and stop a PStatCollector around a sectio...
Similar to MutexHolder, but for a reentrant mutex.
A simple place to store and manipulate tcp and port address for communication layer.
bool set_host(const std::string &hostname, unsigned short port)
This function will take a port and string-based TCP address and initialize the address with this info...
A container for a URL, e.g.
get_server
Returns the server name specified by the URL, if any.
get_port
Returns the port number specified by the URL, or the default port if not specified.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.