#include <transports.h>
Inheritance diagram for OpalTransport:
Operations | |
| enum | PromisciousModes { AcceptFromRemoteOnly, AcceptFromAnyAutoSet, AcceptFromAny, NumPromisciousModes } |
| typedef PBoolean(*) | WriteConnectCallback (OpalTransport &transport, void *userData) |
| virtual PBoolean | IsReliable () const=0 |
| virtual PString | GetInterface () const |
| virtual bool | SetInterface (const PString &iface) |
| virtual OpalTransportAddress | GetLocalAddress () const=0 |
| virtual PBoolean | SetLocalAddress (const OpalTransportAddress &address)=0 |
| virtual OpalTransportAddress | GetRemoteAddress () const=0 |
| virtual PBoolean | SetRemoteAddress (const OpalTransportAddress &address)=0 |
| virtual PBoolean | Connect ()=0 |
| PBoolean | ConnectTo (const OpalTransportAddress &address) |
| virtual PBoolean | Close () |
| void | CloseWait () |
| void | CleanUpOnTermination () |
| virtual PBoolean | IsCompatibleTransport (const OpalTransportAddress &address) const=0 |
| Promiscious modes for transport. | |
| virtual void | SetPromiscuous (PromisciousModes promiscuous) |
| virtual OpalTransportAddress | GetLastReceivedAddress () const |
| virtual PString | GetLastReceivedInterface () const |
| virtual PBoolean | ReadPDU (PBYTEArray &packet)=0 |
| virtual PBoolean | WritePDU (const PBYTEArray &pdu)=0 |
| virtual PBoolean | WriteConnect (WriteConnectCallback function, void *userData) |
| virtual void | AttachThread (PThread *thread) |
| virtual PBoolean | IsRunning () const |
Public Member Functions | |
| OpalEndPoint & | GetEndPoint () const |
| virtual const char * | GetProtoPrefix () const=0 |
Overrides from PObject | |
| void | PrintOn (ostream &strm) const |
Protected Attributes | |
| OpalEndPoint & | endpoint |
| PThread * | thread |
| Thread handling the transport. | |
| typedef PBoolean(*) OpalTransport::WriteConnectCallback(OpalTransport &transport, void *userData) |
| OpalTransport::OpalTransport | ( | OpalEndPoint & | endpoint | ) |
Create a new transport channel.
| OpalTransport::~OpalTransport | ( | ) |
Destroy the transport channel.
| OpalTransport::OpalTransport | ( | OpalEndPoint & | endpoint | ) |
Create a new transport channel.
| OpalTransport::~OpalTransport | ( | ) |
Destroy the transport channel.
| void OpalTransport::PrintOn | ( | ostream & | strm | ) | const |
Print the description of the listener to the stream.
| virtual PBoolean OpalTransport::IsReliable | ( | ) | const [pure virtual] |
Get indication of the type of underlying transport.
Implemented in OpalTransportTCP, and OpalTransportUDP.
| virtual PString OpalTransport::GetInterface | ( | ) | const [virtual] |
Get the interface this transport is bound to. This is generally only relevant for datagram based transports such as UDP and TCP is always bound to a local interface once open.
The default behaviour returns the local address via GetLocalAddress()
Reimplemented in OpalTransportUDP.
| virtual bool OpalTransport::SetInterface | ( | const PString & | iface | ) | [virtual] |
Bind this transport to an interface. This is generally only relevant for datagram based transports such as UDP and TCP is always bound to a local interface once open.
The default behaviour does nothing.
| iface | Interface to use |
Reimplemented in OpalTransportUDP.
| virtual OpalTransportAddress OpalTransport::GetLocalAddress | ( | ) | const [pure virtual] |
Get the transport dependent name of the local endpoint.
Implemented in OpalTransportIP, and OpalTransportUDP.
| virtual PBoolean OpalTransport::SetLocalAddress | ( | const OpalTransportAddress & | address | ) | [pure virtual] |
Set local address to connect from. Note that this may not work for all transport types or may work only before Connect() has been called.
Implemented in OpalTransportIP, and OpalTransportUDP.
| virtual OpalTransportAddress OpalTransport::GetRemoteAddress | ( | ) | const [pure virtual] |
Get the transport address of the remote endpoint.
Implemented in OpalTransportIP.
| virtual PBoolean OpalTransport::SetRemoteAddress | ( | const OpalTransportAddress & | address | ) | [pure virtual] |
Set remote address to connect to. Note that this does not necessarily initiate a transport level connection, but only indicates where to connect to. The actual connection is made by the Connect() function.
Implemented in OpalTransportIP, and OpalTransportUDP.
| virtual PBoolean OpalTransport::Connect | ( | ) | [pure virtual] |
Connect to the remote address.
Implemented in OpalTransportTCP, and OpalTransportUDP.
| PBoolean OpalTransport::ConnectTo | ( | const OpalTransportAddress & | address | ) | [inline] |
Connect to the specified address.
| virtual PBoolean OpalTransport::Close | ( | ) | [virtual] |
Close the channel.
| void OpalTransport::CloseWait | ( | ) |
Close channel and wait for associated thread to terminate.
| void OpalTransport::CleanUpOnTermination | ( | ) | [inline] |
Close channel and wait for associated thread to terminate. For backward compatibility with OpenH323, now deprecated.
| virtual PBoolean OpalTransport::IsCompatibleTransport | ( | const OpalTransportAddress & | address | ) | const [pure virtual] |
Promiscious modes for transport.
Check that the transport address is compatible with transport.
Implemented in OpalTransportTCP, and OpalTransportUDP.
| virtual void OpalTransport::SetPromiscuous | ( | PromisciousModes | promiscuous | ) | [virtual] |
Set read to promiscuous mode. Normally only reads from the specifed remote address are accepted. This flag allows packets to be accepted from any remote, provided the underlying protocol can do so. For example TCP will do nothing.
The Read() call may optionally set the remote address automatically to whatever the sender host of the last received message was.
Default behaviour does nothing.
Reimplemented in OpalTransportUDP.
| virtual OpalTransportAddress OpalTransport::GetLastReceivedAddress | ( | ) | const [virtual] |
Get the transport address of the last received PDU.
Default behaviour returns GetRemoteAddress().
Reimplemented in OpalTransportUDP.
| virtual PString OpalTransport::GetLastReceivedInterface | ( | ) | const [virtual] |
Get the interface of the last received PDU arrived on.
Default behaviour returns GetLocalAddress().
Reimplemented in OpalTransportUDP.
| virtual PBoolean OpalTransport::ReadPDU | ( | PBYTEArray & | packet | ) | [pure virtual] |
Read a protocol data unit from the transport. This will read using the transports mechanism for PDU boundaries, for example UDP is a single Read() call, while for TCP there is a TPKT header that indicates the size of the PDU.
| packet | Packet read from transport |
Implemented in OpalTransportTCP, and OpalTransportUDP.
| virtual PBoolean OpalTransport::WritePDU | ( | const PBYTEArray & | pdu | ) | [pure virtual] |
Write a packet to the transport. This will write using the transports mechanism for PDU boundaries, for example UDP is a single Write() call, while for TCP there is a TPKT header that indicates the size of the PDU.
| pdu | Packet to write |
Implemented in OpalTransportTCP, and OpalTransportUDP.
| virtual PBoolean OpalTransport::WriteConnect | ( | WriteConnectCallback | function, | |
| void * | userData | |||
| ) | [virtual] |
Write the first packet to the transport, after a connect. This will adjust the transport object and call the callback function, possibly multiple times for some transport types.
It is expected that this is used just after a Connect() call where some transports (eg UDP) cannot determine its local address which is required in the PDU to be sent. This must be done fer each interface so WriteConnect() calls WriteConnectCallback for each interface. The subsequent ReadPDU() returns the answer from the first interface.
The default behaviour simply calls the WriteConnectCallback function.
| function | Function for writing data |
| userData | user data to pass to write function |
| virtual void OpalTransport::AttachThread | ( | PThread * | thread | ) | [virtual] |
Attach a thread to the transport.
| virtual PBoolean OpalTransport::IsRunning | ( | ) | const [virtual] |
Determine of the transport is running with a background thread.
| OpalEndPoint& OpalTransport::GetEndPoint | ( | ) | const [inline] |
| virtual const char* OpalTransport::GetProtoPrefix | ( | ) | const [pure virtual] |
Get the prefix for this transports protocol type.
Implemented in OpalTransportIP, OpalTransportTCP, and OpalTransportUDP.
OpalEndPoint& OpalTransport::endpoint [protected] |
PThread* OpalTransport::thread [protected] |
Thread handling the transport.
1.5.1