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IG::CIGI::Connector Class

Warning
The functionality described in this article is not available in the Community SDK edition.
You should upgrade to Sim SDK edition to use it.
Header: #include <UnigineCIGIConnector.h>

IG::CIGI::Connector Class

Members


int init ( int version, const char * host, int send, int recv, int size = 1432 ) #

Initializes the CIGI Connector using the given parameters.

Arguments

  • int version - CIGI protocol version. One of the CIGI_VERSION_* values.
  • const char * host - CIGI Host address.
  • int send - TCP port number to be used for sending packets to the CIGI Host.
  • int recv - TCP port number to be used for receiving packets from the CIGI Host.
  • int size - Packet size. The default value is 1432.

Return value

1 if the CIGI Connector was initialized successfully; otherwise, 0.

int shutdown ( ) #

Returns a value indicating if the CIGI Connector was shutdown successfully.

Return value

1 if the CIGI Connector was shutdown successfully; otherwise, 0.

int isInitialized ( ) #

Returns a value indicating if the CIGI Connector was initialized successfully.

Return value

1 if the CIGI Connector was initialized successfully; otherwise, 0.

void setIGMode ( int mode ) #

Sets the current IG mode.

Arguments

int getIGMode ( ) #

Returns the current IG mode.

Return value

IG mode. One of the CIGI_MODE_* values.

void setIGStatus ( int status ) #

Sets the current IG status.

Arguments

  • int status - IG status. The following values are supported:
    • 0 - normal
    • 1-255 - an error has occurred

int getIGStatus ( ) #

Returns the current IG status.

Return value

IG status. The following values are supported:
  • 0 - normal
  • 1-255 - an error has occurred

int getInterpolation ( ) #

Returns a value indicating if interpolation and extrapolation are enabled.

Return value

1 if interpolation and extrapolation are enabled; otherwise, 0.

unsigned int getIGFrame ( ) #

Returns the number of the current frame for the IG.

Return value

Current IG frame number.

unsigned int getHostFrame ( ) #

Returns the number of the current frame for the Host.

Return value

Current Host frame number.

double getHostTime ( ) #

Returns the current Host time (with latency corrections).

Return value

Current Host time, in seconds.

double getLastReceivedHostTime ( ) #

Returns the last received Host time.

Return value

Last received Host time, in seconds.

void * addConnectCallback ( Unigine::CallbackBase * func ) #

Adds a callback function to be fired when the Host has connected.

Arguments

Return value

ID of the last added connect callback, if the callback was added successfully; otherwise, nullptr. This ID can be used to remove this callback when necessary.

bool removeConnectCallback ( void * id ) #

Removes the specified callback from the list of Connect callbacks.

Arguments

  • void * id - Connect callback ID obtained when adding it.

Return value

True if the Connect callback with the given ID was removed successfully; otherwise false.

void * addReceivePacketCallback ( int cigi_opcode, Unigine::CallbackBase1 * func ) #

Sets a callback function to be fired when a packet of the specified type has been received from the Host.

Arguments

  • int cigi_opcode - CIGI data packet opcode. One of the CIGI_OPCODE_* values.
  • Unigine::CallbackBase1 * func - Callback pointer. The callback function must have the following signature:
    (Unigine::Plugins::IG::CIGI::CigiHostPacket *packet)

Return value

ID of the last added Receive Packet callback, if the callback was added successfully; otherwise, nullptr. This ID can be used to remove this callback when necessary.

bool removeReceivePacketCallback ( void * id ) #

Removes the specified callback from the list of Receive Packet callbacks.

Arguments

  • void * id - Receive Packet callback ID obtained when adding it.

Return value

True if the Receive Packet callback with the given ID was removed successfully; otherwise false.

void * addSendPacketCallback ( int cigi_opcode, Unigine::CallbackBase4 * func ) #

Sets a callback function to be fired right before sending a response to a request. This can be used to send additional data required by a host (e.g., velocities of the point of intersection for LOS/HAT queries which is useful in case of landing on a moving platform).

A callback function has the following signature:

(bool &ret, IG::CIGI::CigiIGPacket *response, IG::CIGI::CigiHostPacket *request, IG::IGIntersection *intersection)

  • ret - boolean value indicating if the packet is to be sent or not;
  • response - the packet to be sent;
  • request - request for which a packet is to be sent as a response (can be nullptr);
  • intersection - additional info on intersection (if necessary).
Source code (C++)
void AppSystemLogic::init_cigi()
{
    int index = Engine::get()->findPlugin("CIGIConnector");
    // check CIGIConnector plugin load
    if (index < 0)
        return;
    // get CIGI interface
    cigi = IG::CIGI::Connector::get();
    
    cigi->addSendPacketCallback(Plugins::IG::CIGI::CIGI_OPCODE_LOS_EXT_RESPONSE, MakeCallback(this, &AppSystemLogic::on_los_ext_send));
    cigi->addSendPacketCallback(Plugins::IG::CIGI::CIGI_OPCODE_LOS_RESPONSE, MakeCallback(this, &AppSystemLogic::on_los_ext_send));
}
void AppSystemLogic::on_los_ext_send(bool &ret, IG::CIGI::CigiIGPacket *response, IG::CIGI::CigiHostPacket *request, IG::IGIntersection *intersection)
{
    ret = false;
    Log::message("reject packet %d\n", response->getType());
    if (request)
        Log::message("request was %d\n", request->getType());
    if (intersection)
    {
        Log::message("intersection was\n");
        if (intersection->object)
            Log::message("intersection object %s\n", intersection->object->getName());
    }
}

Arguments

  • int cigi_opcode - CIGI data packet opcode. One of the CIGI_OPCODE_* values.
  • Unigine::CallbackBase4 * func - Callback pointer. The callback function must have the following signature:
    (bool &ret, IG::CIGI::CigiIGPacket *response, IG::CIGI::CigiHostPacket *request, IG::IGIntersection *intersection)

Return value

ID of the last added Send Packet callback, if the callback was added successfully; otherwise, nullptr. This ID can be used to remove this callback when necessary.

bool removeSendPacketCallback ( void * id ) #

Removes the specified callback from the list of Send Packet callbacks.

Arguments

  • void * id - Send Packet callback ID obtained when adding it.

Return value

True if the Send Packet callback with the given ID was removed successfully; otherwise false.

int getNumHostPackets ( ) #

Returns the total number of packets received from the Host.

Return value

Total number of packets received from the Host.

CigiHostPacket * getHostPacket ( int num ) #

Returns the specified CIGI Host packet.

Arguments

  • int num - ID of the Host packet.

Return value

CIGI Host packet.

CigiIGPacket * createIGPacket ( int ig_opcode ) #

Creates IG Packet to be sent to the Host.

Arguments

Return value

IG Packet to be sent to the Host.

void addIGPacket ( CigiIGPacket * packet ) #

Sends the specified IG packet to the Host.

Arguments

void setProcessPacket ( int op_code, bool enabled ) #

Sets a value indicating if the specified IG packets received are to be processed or skipped.

Arguments

  • int op_code - IG opcode, one of CIGI_OPCODE_* values.
  • bool enabled - true to process packets of the specified type, false to skip them.

void showDebug ( ) #

Displays the debug information.
Last update: 22.04.2021
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