ASSA::ConUDPSocket Class Reference

#include <ConUDPSocket.h>

Inheritance diagram for ASSA::ConUDPSocket:

[legend]Collaboration diagram for ASSA::ConUDPSocket:

[legend]List of all members.

Public Member Functions
	ConUDPSocket ()
	Constructor.
virtual	~ConUDPSocket ()
	Destructor.
bool	connect (const Address &peer_addr_)
	Connect socket to the peer.
void	unconnect ()
	Unconnect connected socket.
int	read (char *buf_, const unsigned int size_)
	Read specified number of bytes off the socket.
int	write (const char *buf_=NULL, const unsigned int size_=0)
	Perform blocking write by writing packet of specified size.
virtual int	in_avail () const
	This function returns the number of characters immediately available in the get area of the underlying Socketbuf buffer without making a system call if Socket is doing buffering I/O.

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Detailed Description

Definition at line 24 of file ConUDPSocket.h.

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Constructor & Destructor Documentation

ASSA::ConUDPSocket::ConUDPSocket (   )  [inline]

Constructor. Definition at line 27 of file ConUDPSocket.h. References trace. : UDPSocket() { char self[] = "ConUDPSocket::ConUDPSocket"; trace(self); }

virtual ASSA::ConUDPSocket::~ConUDPSocket (   )  [inline, virtual]

Destructor. Definition at line 32 of file ConUDPSocket.h. References trace. { char self[] = "ConUDPSocket::~ConUDPSocket"; trace(self); }

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Member Function Documentation

bool ConUDPSocket::connect (  const Address &  peer_addr_  )  [virtual]

Connect socket to the peer. Parameters: peer_addr_  peer address Reimplemented from ASSA::Socket. Definition at line 23 of file ConUDPSocket.cpp. References ASSA::Socket::failbit, ASSA::Address::getAddress(), ASSA::UDPSocket::getHandler(), ASSA::Address::getLength(), ASSA::Socket::setstate(), and trace. Referenced by unconnect(). { char self[] = "ConUDPSocket::connect"; trace(self); if ( ::connect (getHandler(),peer_address_.getAddress(), peer_address_.getLength()) < 0 ) { setstate (Socket::failbit); return false; } return true; }

virtual int ASSA::ConUDPSocket::in_avail (   )  const [inline, virtual]

This function returns the number of characters immediately available in the get area of the underlying Socketbuf buffer without making a system call if Socket is doing buffering I/O. It is certain that returned number of characters may be fetched without error, and without accessing any external device. Implements ASSA::Socket. Definition at line 63 of file ConUDPSocket.h. { return 0; }

int ConUDPSocket::read (  char *  buf_, const unsigned int  size_ )  [virtual]

Read specified number of bytes off the socket. This function cannot be moved up in class hierarchy because IPv4 read() is *very* different from UDP read (one time shot). Parameters: buf_  buffer to save received data into size_  expected packet size Returns: number of bytes read or -1 on error, indicating the reason in errno. Packets of 0 size are possible. Reimplemented from ASSA::Socket. Definition at line 64 of file ConUDPSocket.cpp. References ASSA::Socket::eofbit, ASSA::Socket::failbit, ASSA::UDPSocket::getHandler(), and ASSA::Socket::setstate(). { int len; len = ::read(getHandler(), packet_, size_); if (len == -1) { setstate (Socket::failbit); } else if ( len == 0 ) { setstate (Socket::failbit | Socket::eofbit); } return len; }

void ConUDPSocket::unconnect (   )

Unconnect connected socket. Definition at line 37 of file ConUDPSocket.cpp. References connect(), ASSA::UNIXAddress::getAddress(), ASSA::INETAddress::getAddress(), ASSA::UDPSocket::getDomain(), and trace. { // Ignore errors here. On some systems connect() might return // EAFNOSUPPORT error, on some might not, but it is OK. // char self[] = "ConUDPSocket::unconnect"; trace(self); if ( getDomain() == AF_INET ) { INETAddress addr; SA_IN* addrp = (SA_IN*) addr.getAddress(); addrp->sin_family = AF_UNSPEC; (void) connect(addr); } else { // AF_LOCAL // I haven't tested whether it works at all. UNIXAddress addr(""); SA_UN* addrp = (SA_UN*) addr.getAddress(); addrp->sun_family = AF_UNSPEC; (void) connect(addr); } }

int ConUDPSocket::write (  const char *  buf_ = NULL, const unsigned int  size_ = 0 )  [virtual]

Perform blocking write by writing packet of specified size. Parameters: buf_  buffer to send size_  packet size Reimplemented from ASSA::Socket. Definition at line 80 of file ConUDPSocket.cpp. References ASSA::UDPSocket::getHandler(). { return ::write(getHandler(), (const void*) packet_, size_); }

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

• /home/vlg/develop/libASSA/libassa/assa/ConUDPSocket.h
• /home/vlg/develop/libASSA/libassa/assa/ConUDPSocket.cpp

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