ubit::USocket Class Reference

Ubit Simple Sockets. More...

#include <usocket.hpp>

Inheritance diagram for ubit::USocket:

ubit::UMService List of all members.

Public Member Functions

 USocket (const char *remote_host, int remote_port)
 USocket (const UStr &remote_host, int remote_port)
virtual int connect (const char *remote_host, int remote_port)
virtual void close ()
virtual void onInput (UCall &)
 adds a callback that is fired when data is received on the socket.
bool isConnected () const
int getRemotePort () const
int getDescriptor () const
bool sendBlock (const char *buffer, unsigned short size)
bool sendBlock (UOutbuf &)
bool receiveBlock (UInbuf &)
 simplified block oriented I/O.
bool sendBytes (const char *buffer, unsigned int size)
bool receiveBytes (char *buffer, unsigned int size)
 byte oriented I/O.

Protected Attributes

int remport
int sock
sockaddr_in * sin


class UServerSocket

Detailed Description

Ubit Simple Sockets.


creates a new socket connected to host "myhost" on port 666
  USocket* s = new USocket("myhost", 666);

adds a callback function so that foo(s) will be called each time
s receives data.
  s->onInput(ucall(s, foo));

  void foo(USocket* s) {
    UInbuf ibuf;

receiveBlock() retreives the data sent by sendBlock()
    if (s->receiveBlock(ibuf)) {

ibuf.data() contains the data that has been received. It is
allocated by receiveBlock() and freed when ibuf is destroyed.
      char* received_data = ibuf.data();

ibuf.size() is the size of ibuf.data() (in bytes)
      unssigned int received_count = ibuf.size();

scans the received data according to a predefined format
(a short int followed by a long int in this case)
      short i; long l;
      ibuf.readShort(i); ibuf.readLong(l); ...;
See also: UServerSocket.

Member Function Documentation

bool ubit::USocket::receiveBlock ( UInbuf  ) 

simplified block oriented I/O.

these functions make it possible to send/receive blocks of data of an arbitrary size. ONE call of receiveBlock() always gets ALL the data sent by ONE call of sendBlock().

Memory is managed automatically by classes UOutbuf and UInbuf. UInbuf.data() returns the data received by receiveBlock() and UInbuf.size() the number of bytes. UInbuf.data() is allocated and deallocated automatically in memory and should NOT be freed.


bool ubit::USocket::receiveBytes ( char *  buffer,
unsigned int  size 

byte oriented I/O.

The documentation for this class was generated from the following files:
Generated on Mon Jan 29 00:20:55 2007 for Ubit by  doxygen 1.4.7