ucommon
Public Member Functions
ost::UDPBroadcast Class Reference

Representing a UDP socket used for subnet broadcasts, this class provides an alternate binding and setPeer() capability for UDP sockets. More...

#include <udp.h>

Inheritance diagram for ost::UDPBroadcast:
Inheritance graph
[legend]
Collaboration diagram for ost::UDPBroadcast:
Collaboration graph
[legend]

Public Member Functions

void setPeer (IPV4Broadcast &subnet, tpport_t port)
 Set peer by subnet rather than specific host.
 UDPBroadcast (IPV4Address &ia, tpport_t port)
 Create and bind a subnet broadcast socket.
- Public Member Functions inherited from ost::UDPSocket
void connect (IPV4Host &host, tpport_t port)
void connect (IPV6Host &host, tpport_t port)
void connect (char *service)
Error disconnect (void)
 Disassociate this socket from any host connection.
Socket::Error getInterfaceIndex (char *ethX, int &InterfaceIndex)
 get the interface index for a named network device
IPV4Host getIPV4Peer (tpport_t *port=((void *) 0))
 Examine address of sender of next waiting packet.
IPV6Host getIPV6Peer (tpport_t *port=((void *) 0))
IPV4Host getPeer (tpport_t *port=((void *) 0))
Socket::Error join (IPV4Multicast &ia, int InterfaceIndex)
 join a multicast group on a particular interface
ssize_t peek (void *buf, size_t len)
 Examine contents of next waiting packet.
ssize_t receive (void *buf, size_t len, bool reply=false)
 Receive a message from any host.
ssize_t send (void *buf, size_t len)
 Send a message packet to a peer host.
Error setLoopback (bool enable)
 Set the loopback.
Error setMulticast (bool enable)
 Set the multicast.
void setPeer (IPV4Host &host, tpport_t port)
 set the peer address to send message packets to.
void setPeer (IPV6Host &host, tpport_t port)
void setPeer (char *service)
 Associate socket with a named connection.
Error setTimeToLive (char ttl)
 Set time to live.
 UDPSocket (Family family=IPV4)
 Create an unbound UDP socket, mostly for internal use.
 UDPSocket (char *name, Family family=IPV4)
 Create a UDP socket bound by a service name.
 UDPSocket (IPV4Address &bind, tpport_t port)
 Create a UDP socket and bind it to a specific interface and port address so that other UDP sockets on remote machines (or the same host) may find and send UDP messages to it.
 UDPSocket (IPV6Address &bind, tpport_t port)
virtual ~UDPSocket ()
 Destroy a UDP socket as a socket.
- Public Member Functions inherited from ost::Socket
struct in_addr getaddress (IPV4Address &ia)
struct in6_addr getaddress (IPV6Address &ia)
Error getErrorNumber (void)
 Often used by a "catch" to fetch the last error of a thrown socket.
char * getErrorString (void)
 Often used by a "catch" to fetch the user set error string of a thrown socket, but only if EXTENDED error codes are used.
IPV4Host getIPV4Local (tpport_t *port=((void *) 0))
 Get the local address and port number this socket is currently bound to.
IPV4Host getIPV4Peer (tpport_t *port=((void *) 0))
 Get the host address and port of the socket this socket is connected to.
virtual IPV4Host getIPV4Sender (tpport_t *port=((void *) 0))
 May be used to examine the origin of data waiting in the socket receive queue.
IPV6Host getIPV6Local (tpport_t *port=((void *) 0))
IPV6Host getIPV6Peer (tpport_t *port=((void *) 0))
virtual IPV6Host getIPV6Sender (tpport_t *port=((void *) 0))
IPV4Host getLocal (tpport_t *port=((void *) 0))
IPV4Host getPeer (tpport_t *port=((void *) 0))
IPV4Host getSender (tpport_t *port=((void *) 0))
long getSystemError (void)
char * getSystemErrorString (void)
bool isActive (void)
 Test to see if the socket is at least operating or if it is mearly initialized.
bool isBroadcast (void)
 Return if broadcast has been enabled for the specified socket.
bool isConnected (void)
 Can test to see if this socket is "connected", and hence whether a "catch" can safely call getPeer().
virtual bool isPending (Pending pend, timeout_t timeout=ucommon::Timer::inf)
 Get the status of pending operations.
bool isRouted (void)
 Return if socket routing is enabled.
 operator bool ()
bool operator! ()
 Operator based testing to see if a socket is currently active.
Socket & operator= (Socket &from)
 Sockets may also be duplicated by the assignment operator.
void setCompletion (bool immediate)
 Used to specify blocking mode for the socket.
Error setKeepAlive (bool enable)
 Set the keep-alive status of this socket and if keep-alive messages will be sent.
Error setLinger (bool linger)
 Enable lingering sockets on close.
Error setTypeOfService (Tos service)
 Set packet scheduling on platforms which support ip quality of service conventions.

Additional Inherited Members

- Public Types inherited from ost::Socket
enum  Error {
  errSuccess = 0, errCreateFailed, errCopyFailed, errInput,
  errInputInterrupt, errResourceFailure, errOutput, errOutputInterrupt,
  errNotConnected, errConnectRefused, errConnectRejected, errConnectTimeout,
  errConnectFailed, errConnectInvalid, errConnectBusy, errConnectNoRoute,
  errBindingFailed, errBroadcastDenied, errRoutingDenied, errKeepaliveDenied,
  errServiceDenied, errServiceUnavailable, errMulticastDisabled, errTimeout,
  errNoDelay, errExtended, errLookupFail, errSearchErr,
  errInvalidValue
}
typedef enum Error Error
enum  Family { IPV6 = 1, IPV4 = 2 }
typedef enum Family Family
enum  Pending { pendingInput, pendingOutput, pendingError }
typedef enum Pending Pending
enum  State {
  INITIAL, AVAILABLE, BOUND, CONNECTED,
  CONNECTING, STREAM
}
typedef enum State State
enum  Tos {
  tosLowDelay = 0, tosThroughput, tosReliability, tosMinCost,
  tosInvalid
}
typedef enum Tos Tos
- Static Public Member Functions inherited from ost::Socket
static bool check (Family fam)
 See if a specific protocol family is available in the current runtime environment.
- Protected Types inherited from ucommon::Socket
typedef void * set_t
 External definition of fd_set type.
- Protected Member Functions inherited from ost::Socket
Error bufferSize (unsigned size)
 Set the total protocol stack network kernel buffer size for both send and receive together.
Error connectError (void)
 Used as a common handler for connection failure processing.
Error drop (IPV4Multicast &ia)
 Drop membership from a multicast group.
Error drop (IPV6Multicast &ia)
void endSocket (void)
 Used as the default destructor for ending a socket.
Error error (Error error, char *err=((void *) 0), long systemError=0)
 This service is used to throw all socket errors which usually occur during the socket constructor.
void error (char *err)
 This service is used to throw application defined socket errors where the application specific error code is a string.
Error join (IPV4Multicast &ia)
 Join a multicast group.
Error join (IPV6Multicast &ia)
virtual ssize_t readData (void *buf, size_t len, char separator=0, timeout_t t=0)
 Read in a block of len bytes with specific separator.
ssize_t readLine (char *buf, size_t len, timeout_t timeout=0)
 Process a logical input line from a socket descriptor directly.
Error receiveBuffer (unsigned size)
 Set the protocol stack network kernel receive buffer size associated with the socket.
Error receiveLimit (int limit=1)
 Set thr receive limit.
Error receiveTimeout (timeout_t timer)
 Receive timeout for receiving raw network data.
Error sendBuffer (unsigned size)
 Set the protocol stack network kernel send buffer size associated with the socket.
Error sendLimit (int limit=2048)
 Set the send limit.
Error sendTimeout (timeout_t timer)
 Set the send timeout for sending raw network data.
Error setBroadcast (bool enable)
 Set the subnet broadcast flag for the socket.
void setError (bool enable)
 This service is used to turn the error handler on or off for "throwing" exceptions by manipulating the thrown flag.
Error setLoopbackByFamily (bool enable, Family family=IPV4)
 Set the multicast loopback flag for the socket.
Error setMulticastByFamily (bool enable, Family family=IPV4)
 Setting multicast binds the multicast interface used for the socket to the interface the socket itself has been implicitly bound to.
Error setNoDelay (bool enable)
 Enable/disable delaying packets (Nagle algorithm)
Error setRouting (bool enable)
 Set the socket routing to indicate if outgoing messages should bypass normal routing (set false).
Error setTimeToLiveByFamily (unsigned char ttl, Family fam=IPV4)
 Set the multicast time to live for a multicast socket.
 Socket (int domain, int type, int protocol=0)
 An unconnected socket may be created directly on the local machine.
 Socket (socket_t fd)
 A socket object may be created from a file descriptor when that descriptor was created either through a socket() or accept() call.
 Socket ()
 Create an inactive socket object for base constructors.
 Socket (Socket &source)
 A socket can also be constructed from an already existing Socket object.
virtual ssize_t writeData (void *buf, size_t len, timeout_t t=0)
 Write a block of len bytes to socket.
- Static Protected Member Functions inherited from ost::Socket
static socket_t dupSocket (socket_t s, Socket::State state)
- Protected Attributes inherited from ost::UDPSocket
Family family
union {
   struct sockaddr_in   ipv4
   struct sockaddr_in6   ipv6
peer
- Static Protected Attributes inherited from ost::Socket
static Mutex mutex

Detailed Description

Representing a UDP socket used for subnet broadcasts, this class provides an alternate binding and setPeer() capability for UDP sockets.

Author
David Sugar dyfet.nosp@m.@ost.nosp@m.el.co.nosp@m.m Unreliable Datagram for subnet broadcasts.

Definition at line 266 of file udp.h.

Constructor & Destructor Documentation

ost::UDPBroadcast::UDPBroadcast ( IPV4Address ia,
tpport_t  port 
)

Create and bind a subnet broadcast socket.

Parameters
iaaddress to bind socket under locally.
portto bind socket under locally.

Member Function Documentation

void ost::UDPBroadcast::setPeer ( IPV4Broadcast subnet,
tpport_t  port 
)

Set peer by subnet rather than specific host.

Parameters
subnetof peer hosts to send to.
portnumber to use.

The documentation for this class was generated from the following file: